vam daikin

HRV(Heat Reclaim Ventilation)

VAM – GJ Series

ED71 - 613

ED71-613

HRV (Heat Reclaim Ventilation) ....................................................1Nomenclature .............................................................................................. ii1. Product introduction ................................................................................2

1.1 HRV (Heat Reclaim Ventilation) ...............................................................21.2 Structure...................................................................................................31.3 Features ...................................................................................................41.4 Selection procedures..............................................................................10

2. Control System......................................................................................132.1 Introduction of control system ................................................................132.2 Basic patterns.........................................................................................142.3 Applicable patterns.................................................................................222.4 Functions of printed circuit board ...........................................................302.5 Fan operation setting..............................................................................312.6 Pre-operation flowchart ..........................................................................312.7 Operation mode change over.................................................................32

3. Product specification .............................................................................333.1 Specification ...........................................................................................333.2 Dimensions.............................................................................................363.3 Wiring diagram .......................................................................................413.4 Fan performance ....................................................................................433.5 The correction ratio of exchange efficiency............................................483.6 Sound level data.....................................................................................493.7 Electric characteristics............................................................................54

4. Installation .............................................................................................554.1 Reducing operating sound ....................................................................554.2 Countermeasures ..................................................................................554.3 Centralized pipings ................................................................................574.4 Cautions .................................................................................................584.5 Standard drawing for installation ............................................................604.6 Cautions in installation ...........................................................................654.7 Installation .............................................................................................664.8 Duct work ..............................................................................................664.9 Electrical wiring procedure .....................................................................684.10 Initial setting ...........................................................................................71

5. Operation ..............................................................................................745.1 Method of operation ...............................................................................745.2 Cautions in use...................................................................................... 775.3 Maintenance (for a qualified service person only) .................................775.4 Trouble shooting.....................................................................................79

6. Optional accessories.............................................................................806.1 BRC301B61 : Remote controller ............................................................816.2 KRP50-2 : Wiring adaptor for remote contact / Humidifier

KRP50-2A90 : Installation box for adaptor PCB.....................................836.3 KRP2A51, KRP2A52 : Wiring adaptor for electrical appendices

KRP2A61, KRP2A62 : Wiring adaptor for electrical appendices............846.4 KRP1B61 : Interlock adaptor of VRV .....................................................936.5 KRP1B59 : Interlock adaptor of VRV .....................................................976.6 KRP1B3 : Interlock adaptor of VRV .......................................................986.7 DCS302C(A)61 : Central remote controller..........................................1006.8 DCS301B(A)61 : Unified ON / OFF controller ......................................1246.9 DST301B(A)61 : Schedule timer ..........................................................129

Table of Contents i

ED71-613

6.10 KDDM24B50, KDDM24B100 : Silencer ...............................................1366.11 KAF241G25M, KAF241G50M, KAF241G65M, KAF241G80M,

KAF241G100M : Air filter for replacement ...........................................1376.12 KAF242G25M, KAF242G50M, KAF242G65M, KAF242G80M,

KAF242G100M : High efficiency filter ..................................................1376.13 K-FDS101C, K-FDS151C, K-FDS201C, K-FDS251C, K-FDS102C,

K-FDS152C, K-FDS202C, K-FDS252C : Flexible duct ........................1386.14 YDFA25A1 : Duct adapter....................................................................1386.15 BRP4A50 : Heater control kit ...............................................................139

7. Psychrometric chart ............................................................................1427.1 Psychrometric chart..............................................................................142

Nomenclature

V A M GJ VE500Ventilation

Air

Mounted type

Air flow rate (m3 / h)

Major design category(Design category for EC application)

Power supplyVE: Single phase

60 Hz 220 V50 Hz 220 – 240 V,

(HC0001)

Note:HRV means; Heat Reclaim Ventilation = Total Heat Exchanger (Old name)

ii Table of Contents

ED71-613

VAM–GJ Series 1

HRV(Heat Reclaim Ventilation)

Model name

VAM 150GJVEVAM 250GJVEVAM 350GJVEVAM 500GJVEVAM 650GJVEVAM 800GJVEVAM1000GJVEVAM1500GJVEVAM2000GJVE

Product introduction ED71-613

1. Product introduction

1.1 HRV (Heat Reclaim Ventilation)

BackgroundTo maintain the comfortable environment in a building, the fresh air intake is essential the same as an appropriate room temperature control.The heating / cooling efficiency of conventional standard ventilating systems drops during cooling / heating operation and it is waste of energy.The Heat Reclaim Ventilation was developed to solve those problems.

What is HRV (Heat Reclaim Ventilation) ?HRV is a system which recovers the thermal energy of exhaust air and reuses it for heating or cooling of supply air.It exchanges heat between the exhaust and the supply air.

Daikin’s HRVDaikin’s HRV greatly reduces the total power consumption by operation interlocked with air conditioner such as VRV or SkyAir.The total heat exchange mode and the ventilation mode can be automatically selected by setting to the automatic ventilation mode.

Main Features1. The operation is available when the outdoor air temperature is down to –15°C.2. Interlocked operation with VRV (SkyAir)3. Automatic ventilation mode changeover4. Energy Saving5. FRESH-UP operation6. Quiet operation7. Easy installation8. Easy maintenance9. Wide variety of optional accessories

Remote Controller

HRV

ON / OFF signalCooling / Heating mode signalSetting temperature signalVentilation mode signal

VRV or SkyAir indoor unit

Operation mode signalFilter cleaning signalAlarm signal

Needs no dedicatedremote controller

(HC0002)

2 VAM–GJ Series

ED71-613 Product introduction

1.2 Structure

VAM150GJVE, VAM250GJVE, VAM350GJVE, VAM500GJVE, VAM650GJVE, VAM800GJVE, VAM1000GJVE

3P034927-5J

VAM1500GJVE, VAM2000GJVE

3P034927-5J

SA(Supply air)[Feed air to room]

RA(Return air)[Exhaust air from room]

OA(Outdoor air)[Fresh air from outdoor]

EA(Exhaust air)[Exhaust air to outdoor]

(1) Hanger bracket

(2) Duct connecting flange

(3) Exhaust fan

(5) Damper

(4) Air filter (Long life filter)

(8) Heat exchange elements

(11) Remote controller (Optional accessory)

(7) Maintenance cover

(6) Control box

(10) Air supply fan

SA(Supply air)[Feed air to room]

RA(Return air)[Exhaust air from room]

OA(Outdoor air)[Fresh air from outdoor]

EA(Exhaust air)[Exhaust air to outdoor]

VAM–GJ Series 3


1.3 Features

1.3.1 Interlocked operation with VRV (SkyAir)1. Simultaneous ON / OFF with the indoor unit by the indoor unit remote controller.2. HRV independent operation during air conditioning off season by the indoor unit remote controller.3. Automatic ventilation mode changeover: Auto / Heat Recovery / Bypass4. Fan speed changeover by the indoor unit remote controller : High / Low (Ultra-High / High, Ultra-High / Low)5. Precooling / heating control function setting to delay the start of ventilation during air conditioner start-up to realize the high

energy saving efficiency.6. FRESH-UP operation setting7. Filter sign display notifies the time for cleaning the filter.8. No need to purchase or install the HRV exclusive remote controller9. Advantage to IAQ (Internal Air Quality)

Note:5,6 can be set at the initial setting only.

Installation Examples

Type Interlocked operation with air conditioner HRV independent operation

Structure

Features

• Simultaneous operation by air conditioner’s remote controller is available.

• Operation / Stop• Ventilation mode changeover• Fresh-up changeover• Timer mode start / stop• Malfunction digital display

Connectable Indoor unit

VRV (all indoor unit), SkyAir

Daikin’s HRV Other types

Dust does not fall off from the air filter because the air supply fan of the interlocked indoor unit remains activated even when the HRV is operated independently.

If conventional HRV, with exclusive remote controller, is directly connected to indoor unit of air conditioner, dust may fall off from air filter when air conditioner is OFF.

Direct duct connection system Independent duct system

Indoorunit

RemoteController

HRV

(HC0228)

RemoteController

HRV

(HC0229)

FAN mode No falling of dust (HC0006) OFF Dust

(HC0005)

(HC0007) (HC0008)

4 VAM–GJ Series


1.3.2 Energy saving

Note:The total heating / cooling load may vary depending on the climate or the other environmental conditions.

HRV unit recovers the thermal energy during cooling / heating operation of air conditioner. HRV reduces the cooling / heating load drastically and enhances the heating / cooling efficiency.

Proper use of Heat recovery ventilation and normal ventilation saves energy.When the cooling operation is required in winter, use of heat recovery ventilation is not efficient because the outdoor air temperature is normally lower than that of the indoor.Thus, the proper use of ventilation mode enhances the heating / cooling efficiency.

Automatic Ventilation mode changeover

Refer to the CONTROL for the mode changeover.

The load is reduced at startup of the air conditioner by the following control.Before the working hour, the room air is clean. Therefore, the startup of HRV can be delayed.

By heat recovery operation

Approx. 20% reductionof heating / cooling load

Exhaust AirExhaust Air

Outdoor Air

Heat Exchanger Element(Heat Recovery)

Return Air

Supply Air

(HC0230)


By setting to automaticventilation mode

Operation Sensor of ventilation Decision of mode(Which is more

energy efficient?)Difference between

indoor / outdoor temp.

CoolingIndoor temp. > Outdoor temp.Indoor temp. < Outdoor temp.

Normal ventilation (Bypass)Heat recovery ventilation

HeatingIndoor temp. > Outdoor temp.Indoor temp. < Outdoor temp.

Heat recovery ventilationNormal ventilation (Bypass)

Heat Recovery mode

Normal (Bypass) mode

Heat Exchanger Element(Heat Recovery) (HC0231)

Exhaust Air

Outdoor Air

Return Air

Supply Air

Heat Exchanger Element(Heat Recovery) (HC0232)

Exhaust Air

Outdoor Air

Return Air

Supply Air

AutomaticChangeover

By Precooling / heating operation


Working hour starts Working hour ends

8:15 9:00 18:00

ON

ON

OFF

OFF

Air conditioner

HRVCooling / Heating load is reduced

Total30% reduction

of heating / coolingload 0%

20%30%

Interlocked operation

Reduction of heating / coolingload (%)

HRV independentoperation

Normaloperation (HC0233)

VAM–GJ Series 5


1.3.3 FRESH-UP operationBoth the excessive supply mode and the excessive exhaust mode are selectable.This function creates a more comfortable air environment.

1.3.4 Nighttime free cooling operation

⟨AUTOMATIC HEAT PORGE FUNCTION AT NIGHT⟩The nighttime free cooling is an energy-conserving function which works at night when the air conditioners is off, reducing the cooling load in the morning when the air conditioner is turned on by ventilating rooms which contain office equipment which raises the room temperature.• Nighttime free cooling only works during cooling and when

connected to Building Multi or VRV systems.• Nighttime free cooling is set to “off” in the factory settings;

so request your dealer to turn it on if you intend to use it.

Operation image

(a) Outside temperature(b) Indoor temperature(c) Set temperature(d) Operating state of Air conditioner(e) Operating state of Total heat exchanger

EXPLANATION OF NIGHTTIME FREE COOLING OPERATION IMAGE

The unit compares the indoor and outdoor temperatures after the air conditioning operation stops for the night. If the following conditions are satisfied, the operation starts, and when the indoor temperature reaches the air conditioning setting, the operation stops.

<Conditions>1. the indoor temperature is higher than the air conditioning

setting and2. the outdoor temperature is lower than the indoor

temperature,

If the above conditions are not satisfied, reevaluation is made every 60 minutes.

NOTE• The nighttime free cooling operation works when the HRV

unit is off. Therefore, it is not possible to stop the nighttime free cooling operation, though the forced off is input from the optional controllers for centralized control.

Supply Fresh-up(Excessive outdoor air supply)

Exhaust Fresh-up(Excessive exhaust air supply)

DetailSupply air volume can be set at a higher level than the exhaust air by the remote controller.

Exhaust air volume can be set at a higher level than the supply air by the remote controller.

Majoreffects

• Prevents inflow of toilet odor• Prevents inflow of outdoor air in winter

• Prevents outflow of airborne bacteria from rooms in a hospital

• Prevents outflow of odors from rooms in a nursing home

Application Offices, etc. Hospitals, Nursing homes, etc.

Example

Air supply Air exhaust

HRVNormalventilation fan

Portion offresh upoperation

ex. <Office> (HC0009)

Floor areaSick room

Portion ofexhaust operation

HRV

Air supply

Air exhaust

ex. <Hospital>(HC0010)

OFF ONON

OFF

OFFOFF

40

30

20

(time)Following morning

22:00 24:00

(d)

(e)

Ope

ratin

g st

ate

Tem

pera

ture

(˚C

)

Nighttime free cooling operation

(a)

(b)(c)

6 VAM–GJ Series


1.3.5 Element (HEP element)

MaterialThe partition sheet in the heat exchanger element has been significantly upgraded. It is approximately two-third thinner than the conventional type, resulting in a great improvement in moisture absorption!The material is flame-retardant for safety.The fungiproof design also keeps the air clean.

StructureThe heat exchanger element is designed without moving parts for higher durability and reliability.The supply air passage and the exhaust air passage are arranged in right angle to prevent the supply and exhaust air from getting mixed.

Features• High air shielding

Even in the conventional less humidity conditions, maintaining the features of the material that can get excellent moisture permeability, we have achieved high air shielding, by special processing in the step of milling paper.

New ultra-thin film element

(HC0013)

Molecule of waterMiscellaneous gas CO2 molecule, etc.

Sheet structure

Outdoor

Exhaust air

SA

Indoor

RA(uncleanindoor air)

Outdoor air (fresh air)

Conventional element New ultra-thin film elementMoisture absorption is less effective due to the thickness of the partition sheets. It also limits the effective area that supply and exhaust air can be exposed to.

RA(uncleanindoor air)

Outdoor air (fresh air)

Exhaust air

SA

OutdoorIndoor

Thickness ofthe partition sheet

60 µm

Thickness ofthe partition sheet

40 µm

Newlydeveloped!Due to the thinner film…• Decreases the moisture resistance of the partition

sheets drastically.• Realizes more space for extra layers in the element,

resulting in increased effective area that supply and exhaust air can be exposed to.

Moisture absorption increased by approx. 10%!

Moisture exchange efficiency is greatly improved by using optimized thinner films and moisture-absorption materials in the element. Furthermore, miscellaneous gas barrier properties are maintained by decreasing the porosity in the moisture-absorption materials.

High-humidity air

Low-humidity air

Precise, thin-filmmaterial

Exhaust air

Supply air

VAM–GJ Series 7


1.3.6 Easy installation and service maintenance

Downsized

Model name Height (mm)

VAM150GJVE 278

VAM250GJVE 278

VAM350GJVE 306

VAM500GJVE 306

VAM650GJVE 338

VAM800GJVE 387

VAM1000GJVE 387

VAM1500GJVE 785

VAM2000GJVE 785

Parallel air flow system (Daikin)This system prevents misconnection and simplifies the installation work

Cross air flow system

Service Maintenance

Vertical installation is available.The unit must be installed with the side of RA, SA down.It is necessary to make a trap.Because the trap of wiring can protect against ingress of water.

Upside-down installation is available.It allows the common use of the inspection hole and reduces the space and installation work.For 2 units closely installed, only one inspection hole of 450 × 450 mm will do for maintenance or replacement of the heat exchanger element, etc.Long life filter is equipped.

SA

RA

EA

OA(HC0234)

SA

RA

EA

OA(HC0235)

EA OA

RA SA

Maintenance cover

Control box

Wiring

Trap

Water falls down.

Inspection holeMaintenance cover

Control box

Maintenance cover

Celling hockIn the case of upside-down installation, take a turn 180˚ the celling hocks.

8 VAM–GJ Series


1.3.7 The operation is available when the outdoor air temperature is down to -15°C(Operation when the outdoor air temperature becomes lower than -10°C)When the outdoor air suction temperature becomes lower than -10°C, the unit is changed to intermittent operation to prevent freezing of the heat exchanger element and dew condensation within the unit.

Intermittent operationThe outdoor air thermistor (standard equipment) within the unit detects the temperature. According to the detected temperature, the following operation determines.

<Step 1>• The air supply fan is changed to intermittent operation, when the temperature is lower than -10°C.• The intermittent operation of the air supply fan is changed to an operation of each cycle for 45 minutes’ operation after stopping

operation for 15 minutes.• The exhaust fan operates continuously according to setup.<Step 2>• When the temperature becomes lower than -15°C, the unit stops operation to prevent any defect, such as dew condensation and

freezing. The unit does not ventilate.But, to detect the elevation of the outdoor air temperature, the unit operates for 5 minutes per hour.

• The control by the external damper (local purchase) is available.When the unit is not operating, the unit prevents the cool outdoor air from invading.The power is applied from the connector X15A to the external damper. Therefore, the operation of the unit is controlled in conjunction with the external damper.

Note:Local setting is required.

1.3.8 The high efficiency filter (that has 65% of average dust collecting efficiency) is suitable

1.3.9 Additional optional accessories

Built-in optional high efficiency filterIt greatly reduces the installation space. (page 137)The installation of access doors and the unit can be reduced.

BRP4A50Refer to 6.15 Heater control kit (page 139) for the detail.

High efficiency filter

Air filter

Maintenance cover

Control box

Heat exchanger element

Install the high efficiencyfilter to meet the directionof the arrow of the name plate.

High efficiency filter

Rail

Rail

Install the high efficiency filteralong the inside of the rail.

AIRFLOW

The side of heatexchanger element

Name plate

High efficiencyfilter

VAM–GJ Series 9


1.4 Selection proceduresVarious methods are used to calculate the required ventilating air flow rate according to CO2 generated by inhabitants in a room, waste gas generated by use of fire, and other conditions of a room.Here are 2 patterns of calculating methods.

1.4.1 Based on inhabitants

A : Living room floor space (m2)B : Area occupied per person (m2)

The above equation conforms to article 20, 2 No.2 of the Building Standards Act in Japan.

Note:1. 20 (in the above equation) means “20 (m3 / h / person)”,

which is the required ventilating air flow rate based on the CO2 exhausted by an adult sitting still in a room. If smoking is allowed, other calculation method should be used.

2. Use 10 (m2) if the area occupied per person exceeds10 (m2).

<Table 1>

* : Values set by the Metropolitan Maintenance Bureau in Japan.

Note:1. Table indicates the required ventilating air flow rate

calculated as 20 m3 / h.2. The area occupied per person by type of business is

calculated in reference to Application Standards for building administration in compliance with Building Standards Act in Japan.

1.4.2 Based on room size

C : Number of ventilation required per hour (ventilation / h) D : Area of room (m2) (See table 3 of the following page)E : Height of Ceiling (m) (See table 2)

Calculation is based on the experiences of hygienic laboratory, etc. to find out the number of hourly ventilation of the room air.

(Selection example)Place: Living room of common householdRequired ventilation: 6 times / h (See table 2)

Area of room: Approx. 9.9 (m2)Height of ceiling: 2.4 mRequired ventilating air flow rate =

Required ventilating air flow rate and the unit size such as 150, 250, 350 ...... 2000 are almost equal.So select the close size of the unit.In this case, select VAM150GJVE.

<Table 2>

Note:Refer to the following pages for the tables.

Type of buildingArea occupied per person (N)

Remarks

Eating houses, restaurants, coffee-shops

3 m2 Floor space of a part used for business purposes.

Cabarets, beer halls


Japanese-style restaurants, hall for hire


Store market 3 m2 Floor space of a part used for business purposes.

Pool rooms, Ping-pong rooms, dance halls, bowling alleys


Pin-ball parlors, Go club houses, mahjong parlors


Inns, hotels, and motels


Massage parlors 5 m2 Floor space of a part used for business purposes.

Meeting places, public halls

0.5 – 1 m2

Persons accommodated simultaneously with the number of persons calculated per unit.

Offices 5 m2 Floor space of an office.

Required ventilating air flow rate (m3 / h)

20 × AB

=Required ventilating

air flow rate (m3 / h)C × D × E=

6 × 9.9 × 2.4 143 (m3 / h)=..

Groups Type of room Ventilation required

Common household

Living room, bathroom, drawing room, toilet, kitchen

6661015

Eating places

Restaurant, sushi restaurant, banquet hall, tempura restaurant, cooking room

6610

2020

Inns and hotels

Guest room, corridor, dance hall,large dining hall, washroom, toilet, cooking room, laundry room, engine room, boiler room

55881015152020

Hospitals

Consultation office, sick room, office room, corridor, waiting room, bathroom, dining room, toilet, respiratory disease room, laundry room, cooking room, surgery room, sterilizing room, engine room, boiler room

6661010101010151515152020

Schools

Class room, library, auditorium, experimental chemistry room, gymnasium, toilet, cooking room

66

681215

Groups Type of room Ventilation required

Playhouses and movie theaters

Audience room, corridor, smoking room, toilet,projector room

66121220

Plants

Office room, general work room, telephone room, spinning plant, printing plant, battery room, machinery plant, generator room, substation room, painting shop, welding plant, chemical plant, food plant, wood working plant,casting plant

666101010101515151515202050

General buildings

Office room, waiting room, show room, toilet, conference room

6101012

Comfort stations 20

Dark rooms

Dark rooms for photo 16

Guest rooms of ship

6

Room of potential noxious gas or combustible gas

20 or more

10 VAM–GJ Series


<Table 3> Criteria for Model Selection

Required ventilating AFR per person(m3 / h / person)

Area per person (m2 / person)

Model NameFrequency Air Flow Rate

Application area (m2) Hz L H

20

3

VAM150GJVE50 100 150 15.0 – 22.5

60 95 150 14.3 – 22.5

VAM250GJVE50 155 250 23.3 – 37.5

60 155 250 23.2 – 37.5

VAM350GJVE50 230 350 34.5 – 52.5

60 230 350 34.5 – 52.5

VAM500GJVE50 320 500 48.0 – 75.0

60 295 500 44.3 – 75.0

VAM650GJVE50 500 650 75.0 – 97.5

60 470 650 70.5 – 97.5

VAM800GJVE50 700 800 100.5 – 120.0

60 670 800 100.5 – 120.0

VAM1000GJVE50 860 1000 129.0 – 150.0

60 840 1000 126.0 – 150.0

VAM1500GJVE50 1320 1500 198.0 – 225.0

60 1260 1500 189.0 – 225.0

VAM2000GJVE50 1720 2000 258.0 – 300.0

60 1580 2000 237.0 – 300.0

5

VAM150GJVE50 100 150 25.0 – 37.5

60 95 150 23.8 – 37.5

VAM250GJVE50 155 250 38.8 – 62.5

60 155 250 38.8 – 62.5

VAM350GJVE50 230 350 57.5 – 87.5

60 230 350 57.5 – 87.5

VAM500GJVE50 320 500 87.5 – 125.0

60 295 500 87.5 – 125.0

VAM650GJVE50 500 650 125.0 – 162.5

60 470 650 117.5 – 162.5

VAM800GJVE50 700 800 175.0 – 200.0

60 670 800 167.5 – 200.0

VAM1000GJVE50 860 1000 215.0 – 250.0

60 840 1000 210.0 – 250.0

VAM1500GJVE50 1320 1500 330.0 – 375.0

60 1260 1500 315.0 – 375.0

VAM2000GJVE50 1720 2000 430.0 – 500.0

60 1580 2000 395.0 – 500.0

10

VAM150GJVE50 100 150 50.0 – 75.0

60 95 150 47.5 – 75.0

VAM250GJVE50 155 250 77.5 – 125.0

60 155 250 77.5 – 125.0

VAM350GJVE50 230 350 115.0 – 175.0

60 230 350 115.0 – 175.0

VAM500GJVE50 320 500 160.0 – 250.0

60 295 500 147.5 – 250.0

VAM650GJVE50 500 650 250.0 – 325.0

60 470 650 235.0 – 325.0

VAM800GJVE50 700 800 350.0 – 400.0

60 670 800 335.0 – 400.0

VAM1000GJVE50 860 1000 430.0 – 500.0

60 840 1000 420.0 – 500.0

VAM1500GJVE50 1320 1500 660.0 – 750.0

60 1260 1500 630.0 – 750.0

VAM2000GJVE50 1720 2000 860.0 – 1000.0

60 1580 2000 790.0 – 1000.0

VAM–GJ Series 11


Note:AFR Air Flow Rate

Required ventilating AFR per person(m3 / h / person)

Area per person (m2 / person)

Model NameFrequency Air Flow Rate

Application area (m2) Hz L H

40

3

VAM150GJVE50 100 150 7.5 – 11.3

60 95 150 7.1 – 11.3

VAM250GJVE50 155 250 11.6 – 18.8

60 155 250 11.6 – 18.8

VAM350GJVE50 230 350 17.3 – 26.3

60 230 350 17.3 – 26.3

VAM500GJVE50 320 500 24.0 – 37.5

60 295 500 22.1 – 37.5

VAM650GJVE50 500 650 37.5 – 48.8

60 470 650 35.3 – 48.8

VAM800GJVE50 700 800 52.5 – 60.0

60 670 800 50.3 – 60.0

VAM1000GJVE50 860 1000 64.5 – 75.0

60 840 1000 63.0 – 75.0

VAM1500GJVE50 1320 1500 99.0 – 112.5

60 1260 1500 94.5 – 112.5

VAM2000GJVE50 1720 2000 129.0 – 150.0

60 1580 2000 118.5 – 150.0

5

VAM150GJVE50 100 150 12.5 – 18.8

60 95 150 18.9 – 18.8

VAM250GJVE50 155 250 19.4 – 31.3

60 155 250 19.4 – 31.3

VAM350GJVE50 230 350 28.8 – 43.8

60 230 350 28.8 – 43.8

VAM500GJVE50 320 500 40.0 – 62.5

60 295 500 36.9 – 62.5

VAM650GJVE50 500 650 62.5 – 81.3

60 470 650 58.8 – 81.3

VAM800GJVE50 700 800 87.5 – 100.0

60 670 800 83.8 – 100.0

VAM1000GJVE50 860 1000 107.5 – 125.0

60 840 1000 105.0 – 125.0

VAM1500GJVE50 1320 1500 165.0 – 187.5

60 1260 1500 157.5 – 187.5

VAM2000GJVE50 1720 2000 215.0 – 250.0

60 1580 2000 197.5 – 250.0

10

VAM150GJVE50 100 150 25.0 – 37.5

60 95 150 23.8 – 37.5

VAM250GJVE50 155 250 38.8 – 62.5

60 155 250 38.8 – 62.5

VAM350GJVE50 230 350 57.5 – 87.5

60 230 350 57.5 – 87.5

VAM500GJVE50 320 500 80.0 – 125.0

60 295 500 73.8 – 125.0

VAM650GJVE50 500 650 125.0 – 162.5

60 470 650 117.5 – 162.5

VAM800GJVE50 700 800 175.0 – 200.0

60 670 800 167.5 – 200.0

VAM1000GJVE50 860 1000 215.0 – 250.0

60 840 1000 210.0 – 250.0

VAM1500GJVE50 1320 1500 330.0 – 375.0

60 1260 1500 315.0 – 375.0

VAM2000GJVE50 1720 2000 430.0 – 500.0

60 1580 2000 395.0 – 500.0

12 VAM–GJ Series

ED71-613 Control System

2. Control System

2.1 Introduction of control systemThe control systems introduced here is for the HRV unit adopting the high speed and high performance transmission system (DIII-NET), the same as the VRV systems and SkyAir series.

Description of system

(HC0018)

• Basic method to operate HRV unit (Operation by exclusive remote controller for HRV unit)

Inde

pend

ent

Con

torl

syst

em

• Interlocked operation with indoor unit by remote controller for indoor unit

• The HRV unit can also be operated independently by the remote controller for indoor unit, even if indoor unit is not in operation.(The HRV unit cannnot be operated independently when the duct is connected directly to the indoor unit.)

Inte

rlock

ed o

pera

tion

[Unified ON / OFF controller]• A maximum of 16

groups can be controlled of “ON / OFF” by one unified ON / OFF controller.(Note)Up to 4 unified ON / OFF controllers can be installed in one system.

[Schedule timer]• One schedule timer

can control the weekly schedule of up to 128 units.

[Central remote controller]• Up to 64 groups of

the units can be controlled individually by one central remote controller.

Cen

tral

ized

con

trol

Initi

al s

ettin

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d

FunctionController

Mal

func

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disp

lay

Pre

cool

/ pr

ehea

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ratio

n

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httim

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e co

olin

g op

erat

ion

Air

flow

rat

e m

ode

chan

geov

er

(nor

mal

mod

e / f

resh

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mod

e)

Air f

low

rate

cha

ngeo

ver (

High

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w)

Aut

omat

icV

entil

atio

n m

ode

chan

geov

er

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ratio

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top

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ote

cont

rolle

r for

indo

or u

nit

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fied

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FF

con

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ler

Cen

tral

rem

ote

cont

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r

Sch

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e tim

er

Man

ual

Rem

ote

cont

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r H

RV

uni

t

Control system

Description of systemPurposes and applications

(Onl

y w

hen

rem

ote

cont

rolle

r fo

r H

RV

uni

t is

used

)

Initi

al s

ettin

g re

quire

d

(Initi

al s

ettin

g re

quire

d w

hen

rem

ote

cont

rolle

r for

HR

V u

nit i

s no

t use

d.)

HRV unit

HRV unit

HRV unit HRV unit

Remote controller for HRV unit

Indoor unit

Indoor unit Indoor unit

Remote controller for indoor unit

Remote controller for indoor unitRemote controller for indoor unit


Maximum number of the unit: 16 units

• Central remote controller• Schedule timer • Multi-function centralized controller

Maximum number of groups: 64 units

VAM–GJ Series 13

Control System ED71-613

BRC• ON• Ve

By• Ve• Fr• Tim• Ind• Di

BRC• ON• Ve

By• Ve• Fr

• Thind

• Prpo

• Vathe

2.2 Basic patterns

2.2.1 List of control system

Purposes and applications Description of system Optional accessories required

BRC301B61Liquid crystal remote controller



• Basic method to operate HRV unitThe remote controller for HRV unit is installed on each HRV unit for its operation.

Control system

Inde

pend

ent s

yste

m

Ope

ratio

n by

mai

n sw

itch

• The HRV unit operates whenever the indoor unit is in operation, and can also be operated independently by the remote controller for indoor unit, even if the indoor unit is not in operation.

Inte

rlock

ed o

pera

tion

syst

em w

ith V

RV

sys

tem

s an

d S

kyA

ir se

ries

Sin

gle-

grou

p in

terlo

cked

ope

ratio

n

• The HRV is operable from a place near the unit or a remote place and the selected control is indicated in the display.(Priority is on the last selection.)

Con

trol w

ith tw

o re

mot

e co

ntro

llers

• Simultaneous control of multiple units installed in such as a spacious room is available.

Gro

up c

ontr

ol

• Within the same group, the remote controller for indoor unit can control the operation of both the indoor unit and HRV unit connected by duct.

Dire

ct d

uct c

onne

ctio

n sy

stem

HRV unit

HRV unit

HRV unit HRV unit

Indoor unit HRV unit


HRV unit







14 VAM–GJ Series


uired
Function Nos. of the unit controlled and length of wiring Cautions page
18

• One remote controller operates each HRV unit.

• Remote control wiring can be extended up to 500 m maximum.

• The wire for remote controller is not included as standard accessories and should be arranged locally.

• By connecting the adapter PCB, the operation signal can be taken out remotely.

• “Fresh-up operation” is possible by external input.

• The group control is not possible by the remote controller for HRV unit.

18

BRC301B61• ON / OFF• Ventilation mode (Auto / Heat Exchange /

Bypass)• Ventilating rate (High / Low)• Fresh up mode (ON / OFF)• Timer setting (ON / OFF)• Indication of filter cleaning signal• Digital indication of malfunction

BRC301B61• ON / OFF• Ventilation mode (Auto / Heat Exchange /

Bypass)• Ventilating rate (High / Low)• Fresh up mode (ON / OFF)

• Control of one HRV with two remote controllers

• The maximum allowable total length of remote controller wiring is 500 m.

• Same as operation from local place.• It is necessary to set the Master / Slave

changeover switch in the remote controller.• Two remote controller operation is not

available with simple remote controllers.

19

• Up to 16 HRV units can be controlled with one liquid crystal remote controller.

• The maximum total length of remote controller wiring is 500 m.

• Control with two remote controllers is available.

• Same as operation from local place.• Group control is not available with a simple

remote controller.* All the settings of HRVs in the same group

are the same (However, it is possible to fix the individual setting by each unit.)

19

• The HRV unit operates whenever the indoor unit is in operation.

• Precool / preheat operation is also possible.

• Various settings are available by adding the HRV remote controllers.

• A maiximum of 16 units of indoor unit and HRV unit can be controlled by the remote controller for indoor unit. (If they are in the same group)


19

• A maximum of 16 units of indoor unit and HRV unit can be controlled the operation by the remote controller for indoor unit.


• Make sure to set “ON” for direct ducting setting.

• The HRV cannot be operated independently to prevent the dust, when the indoor unit is not in operation. However, if the fan of indoor unit is in operation, the HRV unit can be operated independently.

(HC0019)

VAM–GJ Series 15


• Thindcon

• ThHRcon

Colle[Unif• Ea

OF• Ea

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sch[Sche• Th

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• Baproocc

[Ada• Th

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con• It c

thesam

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Zon

e 1

Zon

e 2

Purposes and applications Description of system Optional accessories required

KRP2A61♦ Adapter PCB for

remote control(One adapter PCB should be installed in either the HRV unit or the indoor unit.)

DCS301B(A)61♦ Unified ON / OFF

Controller(up to 4 controllers)

DST301B(A)61♦ Schedule timer

KRP2A61♦ Adapter PCB for

remote control(not possible to use together with other central controller)

* One of the above controller should be installed in indoor unit.(However, only KRP2A61 can also be installed in HRV unit.)

DCS302C(A)61♦ Central remote

controller

• When the HRV unit is interlocked to 2 or more groups of indoor units, the HRV unit operates if one of indoor unit in the groups is in operation. The HRV unit can also be operated independently by remote controller for indoor unit, even if the indoor unit is not in operation.

Control system

Inte

rlock

ed o

pera

tion

syst

em w

ith V

RV

sy

stem

s an

d S

kyA

ir se

ries

Inte

rlock

ed o

pera

tion

with

2 o

r mor

e gr

oups

Cen

tral

ized

con

trol

sys

tem

[Unified ON / OFF Controller]• A maximum of 16 groups

can be controlled of “ON / OFF” by one controller, and up to four controllers can be installed in one system.

[Schedule Timer]• One schedule timer can

control the weekly schedule of up to 128 units.

[Adapter PCB for remote control]• One adapter PCB can

control up to 64 groups collectively.

Col

lect

ive

/ ind

ivid

ual c

ontr

ol

• The Central remote controller can control the zone operation of the several groups of the units collectively.

• Central remote controller can control the independent operation of HRV unit in each zone.

Zon

e co

ntro

l sys

tem

Central transmission line

Indoor unit

Indoor unit


HRV unit




Remote controller for indoor unitRemote controller for indoor unit

Adapter PCB for remote conrol



Remote controller for indoor unit Remote controller for HRV unit




Unified ON / OFF controller orSchedule timeror Adapter PCB for remote control

Central remote controller

16 VAM–GJ Series


uired

d in t or

s)

e r

e

o be nit.)

Function Nos. of the unit controlled and length of wiring Cautions page

20

20

• The HRV unit operates of one of the indoor units connected to the central control transmission line is in operation.

• The various setting for the operation of HRV unit should be set by the remote controller for the indoor unit.

Collective / Individual operation[Unified ON / OFF controller]• Each group can be controlled of “ON /

OFF” individually.• Each 16 groups can be controlled

“ON / OFF” collectively.• The power supply terminal for the

schedule timer is provided.[Schedule timer]• The schedule timer can control collectively

the operation “ON / OFF” twice a day by weekly.

• Back-up power supply for 48 hours is provided, when the power failure is occurred.

[Adapter PCB for remote control]• The HRV units can be controlled

“ON / OFF” collectively by external input.

• A maximum of 64 groups connected by the central transmission line can be controlled.

• The central transmission line can be extended up to 1000 m maximum.

• A maximum of 64 groups of the units can be controlled.

• The central control transmission line can be extended up to 1000 m maximum.

• No direct duct connection is possible.• Set “ON” for collective zone interlock

setting.

• When you use the central controller, no direct duct connection is possible.

[Unified ON / OFF controller]• Each group should be set the group

number. (It cannot be set by the remote controller for HRV unit.)

• The power must be supplied.[Schedule timer]• When you use the schedule timer alone, it

is necessary to supply the power of DC16V, which can be supplied from the printed circuit board of the unit. (from CX11A in case of HRV unit)

[Adapter PCB for remote control]• The adapter PCB for remote control cannot

be used with other central controller. (It can be installed in the either indoor unit or HRV unit.)

• Only KRP2A61 can be installed in the HRV unit. (KRP2A2·A3 cannot be installed in the HRV unit because of their size.)

21

The interlocked operation[Multi function centralized controller]• It can control the operation “ON / OFF”

individually or collectively.• The several group of the units can be

controlled collectively by zone.• It can control the interlocked operation of

the indoor units and the HRV units in the same zone.

• The electrical terminal for the schedule timer is provided.

• A maximum of 64 groups connected by the centralized transmission line can be controlled.

• The central transmission line can be extended up to 1000 m maximum.

• The initial setting by remote controller for indoor unit is needed. (The collective zone interlock setting should be “ON”.)However, if there is no indoor unit in the same zone (only HRV units), the initial setting is not required.

• When you use the central transmission line, no direct duct connection is possible.

[Multi function central controller]• Each group should be set the group

number for central control. (It cannot be set by the remote controller for HRV unit.)

• The power supply is needed.

(HC0020)

VAM–GJ Series 17


2.2.2 Independent systemOperation by main switch

Control with two remote controllers

Purposes and functions• Basic method to operate HRV unit

The remote controller for HRV unit is installed on each HRV unit for its operation.

[When you use remote controller for HRV unit]Cautions

1. The remote controller for HRV unit should be connected to the terminal no. P1 and P2.

2. The remote control wiring should be arranged locally.3. The operation by two remote controllers or the group

control is not possible.4. The initial setting cannot be done by the remote controller

for HRV unit, which has to be set by the remote controller for indoor unit.

Example of control wiring

Switch setting of HRV unit• No change is required. (as per factory setting)

Optional accessories required• Remote controller for HRV unit BRC301B61•

Purpose and functions• For control of one HRV unit (Also one group control is

possible)Sophisticated operation and indication output are possible from either local place or remote place by two liquid crystal remote controllers.

• Either one of two liquid crystal remote controllers can be used for all operations and indications.(However, initial setting can only be carried out by the master remote controller.)

Point• The wiring to the remote controllers must be branched

from the unit as shown in the diagram.(Though the crossover between the master and slave remote controllers is acceptable, the work to put two wires into the remote controller takes time.)

Example of wiring for control

Note1. The maximum allowable total length of wires to the remote

controller is 500 m.2. Simple remote controllers cannot be used for control with

two remote controllers.The following setting is required

• Either one of two remote controllers must be set as a slave remote controller.

Required optional accessories• Liquid crystal remote controller × 2

BRC301B61

X9A

X10A

X11A

J1 J2 F1 F2

P1 P2

P1 P2

JC

SS1

Up to 500 m maximum


HRV unit

(HC0021)

Information1. If you increase the air flow rate from “High” to

“Ultra-High” by the remote controller for HRV unit, it is necessary to have a initial setting by the remote controller for indoor unit or HRV unit.

X9A

X10A

X11A

J1 J2 F1 F2

P1 P2

P1 P2

JC

SS1

MainP1 P2Sub

HRV unit



(HC0023)

18 VAM–GJ Series


Group control

2.2.3 The interlocked operation systemSingle-group interlocked operation (Basic pattern)

Single-group interlocked operation (Direct duct connection)

Purpose and functions• Simultaneous control of multiple HRV units (max. 16 units)

is available. (for application to such as a spacious room)• All operation and individual setting can be carried out from

one remote controller.• In case the liquid crystal indicates malfunction, the

indication of HRV unit No. shows in the display.(If another remote controller is additionally installed, control with two remote controllers is possible.)

Point• No address setting is required because address is

automatically set.(The address is optionally allocated. The address No. can be confirmed by setting to service mode “Forced fan operation” and be checked whether the unit is in operation or not.)

Example of wiring for control

Note1. The maximum allowable total length of wires to the remote

controller is 500 m.2. One liquid crystal remote controller is always required.3. Simple remote controllers cannot be used for control with

two remote controllers.The following setting is required

• No setting is required. (Product is to be just as it was when shipped from the factory)

Required optional accessories• One set of liquid crystal remote controller

BRC301B61

Purposes and functions• The remote controller for indoor unit can control the

interlocked operation with the HRV unit, and it can make an initial setting of the ventilation flow rate, the ventilation mode changeover and fresh-up operation. The HRV unit can independently be operated, even if the indoor unit is not in operation.

Note1. The remote controller should be connected to the terminal

no. P1 and P2, the same as the group control wiring of indoor units.


Switch setting for HRV unit• No change is required. (as per factory setting)

Optional accessories required• None

Purposes and functions• The operation of HRV unit is interlocked to the indoor unit

connected by the duct, which has a fresh air intake.• It can reduce the number of outlets for supply air.• The HRV unit cannot be operated independently to prevent

a reverse stream of fresh air to the suction side of the indoor unit, unless the fan of indoor is in operation.

Note1. The amount of fresh air to the indoor unit should be less

than 20% of the total air volume of the indoor unit. (If the amount of fresh air is too much, the capacity of the indoor unit may reduce and the operating sound might be higher.)

2. The HRV unit can be operated independently, if the fan of indoor unit is in operation.


Switch setting for HRV unitThe initial setting by the remote controller for indoor unit

Direct duct setting ..........“ON” [17(27)·5·02]Optional accessories required

• None

X9A

X10A

X11A

J1 J2 F1 F2

P1 P2

P1 P2

JC

SS1 X9A

X10A

X11A

J1 J2 F1 F2

P1 P2

JC

SS1 X9A

X10A

X11A

J1 J2 F1 F2

P1 P2

JC

SS1

HRV unit HRV unit HRV unit


(HC0024)

X9A

X10A

X11A

J1 J2 F1 F2

P1 P2

JC

SS1

F1 F2

P1 P2

P1 P2


Up to 500 m maximum(HC0025)

X9A

X10A

X11A

J1 J2 F1 F2

P1 P2

JC

SS1

F1 F2

P1 P2

P1 P2


Up to 500 m(HC0026)


VAM–GJ Series 19


Interlocked operation with 2 or more group of VRV system

2.2.4 Centralized control systemCollective / individual control [Unified ON / OFF controller DCS301B(A)61]

Purposes and functions• When the HRV unit is interlocked to 2 or more group of

indoor units, the HRV unit operates, if one of indoor unit in groups is in operation. The HRV unit can also be operated independently by remote controller for indoor unit, even if the indoor unit is not in operation.

Cautions1. It is not necessary to set the group number for central

control.2. One adapter PCB for remote control should be installed in

the one of the unit connected to the central transmission line.(When you install an adapter PCB for remote control in the indoor unit, select the applicable model number of Adapter PCB to be installed.)


Note:The central transmission line can be extended up to 1000 m maximum.

Switch setting for HRV unitThe initial setting by the remote controller for indoor unit or HRV unit.

Optional accessories required• Wiring adapter for electrical appendices : KRP2A61• Installation box for adapter PCB : KRP50-2A90

Purposes and functions• One controller can control the operation of “ON / OFF” of

16 groups of the units collectively or individually.Also up to 4 controllers can be installed in one centralized transmission line (in one system), which enable to control up to 64 groups. (16 groups × 4 = 64 groups)

• The ventilation mode will be selected automatically.Cautions

1. It is necessary to assign a central group number to each indoor unit and HRV unit.

2. The operation of HRV unit is not interlocked with the operation of indoor unit under this control system. If you like to have an interlocked operation, please consider other control system.

Switch setting for HRV unitThe initial setting is required by the remote controller for indoor unit or HRV unit.• No change is required. (as per factory setting)

Optional accessories required• Remote controller (Only when you use) BRC301B61


X9AX10A

X11A

J1 J2 F1 F2

P1 P2

JC

B1 B2 BC W1 W2 W3 W4

SS1

F1 F2

P1 P2

P1 P2

F1 F2

P1 P2

P1 P2

F1 F2

P1 P2

P1 P2

KRP2A1(Installed in the HRV unit)

Up to 1000 m maximum

Indoor unit

Indoor unit




(HC0027)

X9A

X10A

X11A

J1 J2 F1 F2

P1P2

JC

SS1

F1 F2

P1P2

P1P2

P1P2

X9A

X10A

X11A

J1 J2 F1 F2

P1P2

JC

SS1

F1 F2

P1P2

P1P2

UnifiedON / OFFcontroller

Power supply

Indoor unit

Indoor unit

Remote controllerfor indoor unit


HRV unit

HRV unit

Remote controllerfor HRV unit

Connecting line can beextended up to 1000 mmaximum.

(HC0028)

20 VAM–GJ Series


Zone control system (Central remote controller DCS302C(A)61)

Purposes and functions• A maximum of 64 groups can be controlled ON / OFF

individually by one controller. And also the central remote controller can control the ON / OFF operation of the units in each zone collectively. (It also can control the interlocked operation as well as the independent operation within the same zone.)

• If the zone setting is not required, or if you like to operate the HRV unit whenever one of indoor unit of any group connected to the central transmission line is in operation, refer to the applied system.

Cautions1. It is necessary to assign a central control group number.2. If you operate the HRV unit interlocked to the operation of

indoor unit, please set the same zone number. At that time, it is necessary to set the zone operation on the HRV unit.

3. It is not possible to operate ON / OFF from the remote controller for the HRV unit in zone 1.

4. It is not necessary to set the zone operation mode in zone 2, which is already set at the factory.

Switch setting for HRV unitThe initial setting is required by the remote controller for indoor unit or HRV unit.• For zone 1.......... “ON” [17(27) · 8 · 02]• For zone 2.......... Factory set (No change is required)

Optional accessories required• Remote controller (Only when you use) BRC301B61


X9A

X10A

X11A

J1 J2 F1 F2

P1P2

JC

SS1

F1 F2

P1P2

P1P2 P1P2

P1P2

X9A

X10A

X11A

J1 J2 F1 F2

P1P2

JC

SS1X9A

X10A

X11A

J1 J2 F1 F2

P1P2

JC

SS1

Zon

e 1

Zon

e 2

Multi-functioncentrailized control

Power supply

Indoor unit

HRV unit



HRV unit

HRV unit


(HC0029)

VAM–GJ Series 21


2.3 Applicable patterns

2.3.1 Additional functionsOperation by power supply [HRV unit]

Monitor of operation (KRP50-2) [HRV unit → operating pilot lamp (local supply)]

Purposes and functions• The HRV unit is operated by “ON / OFF” of the main power

breaker. This is possible only for the independent operation system. (When the main power is disconnected, the transmission error will be displayed if the HRV unit is interlocked to the indoor unit or controlled by the centralized controller.)

Cautions1. Install insect control wire net on the air intake and exhaust

openings. (If the power is disconnected when the damper is open, the damper remains open and the insects may get into the room.)

2. When you install the remote controller, it is possible to have normal operation after the electric power is supplied.


Switch setting for HRV unit

Install the remote controller for indoor unit for the initial setting. After completion of the initial setting, remove the remote controller.


Purposes and functionsTo monitor the operation of one HRV unit.


Switch setting for HRV unit• No change is required. (as per factory setting)

Optional accessories required• Wiring adapter for Humidifier : KRP50-2• Installation box for adapter PCB : KRP50-2A90

X9A

X10A

X11A

J1 J2 F1 F2

P1 P2

P1 P2

JC

SS1

HRV unit

Remote controller for indoor unit(HC0030)

The initial setting is required by the remote control for indoor unit. Power-on setting..... “ON” [18(28)·1·02]

X9A

X10A

X11A

J1 J2 F1 F2

P1 P2

P1 P2

JC

SS1

123

L

power supply for pilot lampPilot lamp

[KRP50-2]

3P connector

2P connector

HRV unit


(HC0031)

22 VAM–GJ Series


Fresh-up operation by external input [HRV unit]

Interlocking with external damper (In response to cold region)

Purposes and functionsWhen the operation is interlocked with the local ventilating fan (such as the one for toilet or kitchen), the HRV unit performs the over-supply operation to prevent the reverse flow of the odor.The flow rate of supply air becomes higher than that of exhaust air.


• Local wiring

Note:The connecting wiring between HRV unit and the terminal for local connection can be extended up to 50 m maximum.

Switch setting of HRV unit• No change is required. (factory setting)


X9A

X10A

X11A

J1 J2 F1 F2

P1 P2

P1 P2

JC

SS1

Connecting line can be extended up to 50 m maximum.

HRV unit

(Terminal for local connection)

Remote controller for HRV unit(HC0032)

Operation of HRV unit

Terminal for local connection

Capacity of connecting terminal

Fresh-up Short-circuit No-voltage normally open contact for micro-current 16 V, 10 mANormal Open circuit

HRV unit body printed circuit board outputs signals to open andclose the electric damper in interlocking with operation of HRV unit.

Purposes and functions

CN15/X15A

Main body controlPrinted circuitboard

HRV unit bodyElectric damper(field supplied)

External wiring (field supplied) is connected at closed end.Printed circuit board connecting harness(standard accessory)

Insulation-coated closed end connection binder(field supplied)

HRV unit

X15A

External damper interlocking harness(accessory)

External damper interlocking electric wire(field supplied)

To externaldamper

Output signal : VAM-GJ type → No-voltage a-contact signal

Installing conceptual diagram

Connect external damper interlocking harness (accessory) to terminals (X15A) on the printed circuit board with connectors,and wire the other end to the harness toward the damper with insulation-coated closed end connection binder.

Wiring procedure

Setting change with remote controller is unnecessary.

Setting change procedure

* Select insulation-coated closed end connection binder with specification suitable for the wire diameter. And, connect the closed end connection binder in the control box.

Note) VAM is different from VAC in presence or absence of voltage supply (as described previously), therefore, pay much attention.

VAM-GJ typeOperation signal is outputted by operating/stoppingHRV unit.(No-voltage a-contact)

Contact capacity When using at 100V 1.2A or lowerWhen using at 200V 0.6A or lower

Supply voltage Connected load capacity220V230V240V

0.5A or less

• Power supply turns ON when total heat exchanger starts operating.Power supply turns OFF when total heat exchanger is switched OFF.

Required setting changes for switchover to X15A output

VAM–GJ Series 23


Precool / preheat operation

Remote control operation by input from outside

Purposes and functions• The operation of HRV unit is delayed when the air

conditioner begins operation.Cautions

1. The precool / preheat function is possible only when the operation of HRV unit is interlocked to one-group or two-group of indoor unit.(It will not function when the HRV unit is in independent operation.)

2. You can select the preset time of 30 / 45 / 60 minutes for delayed operation at the time of initial setting.If this preset time is not sufficient, you can extend the preset time for further 30 / 60 / 90 minutes only the preheating function.


Switch setting of the HRV unit The initial setting by the remote controller for the indoor unit. • Precool / preheat ON / OFF setting

.......................................“ON” [17(27) · 2 · 02]• Precool / preheat time setting

.......................................“Time” [17(27) · 3 · *1]• Preheat extra time setting

.......................................“Time” [17(27) · 9 · *2]*1 setting.......... 01 for 30, 02 for 45 and 03 for 60 minutes.*2 setting ..........01 for 0 (factory set), 02 for 30, 03 for 60 and

04 for 90 minutes.Optional accessories required

• None

Purposes and functions• The HRV unit can be controlled the operation of “ON /

OFF” remotely by the signal from no-voltage normally open contact.

Cautions1. When the system is under group control, the input from

outside controls the operation of “ON / OFF” collectively, if it is installed in the one of the unit.


Switch setting of HRV unit• No change is required.


X9A

X10A

X11A

J1 J2 F1 F2

P1 P2

JC

SS1

F1 F2

P1 P2

P1 P2




(HC0033)

X9A

X10A

X11A

J1 J2 F1 F2

P1 P2

P1 P2

JC

SS1

Connecting line can be extended up to 50 m.

HRV unit

(Terminal for local connectionNo-voltage normally opencontact for micro-current) (16 V, 10 mA)

Remote controller for HRV unit (HC0034)

24 VAM–GJ Series


2.3.2 To connect the remote controller to the HRV unitCentralized control operation

2.3.3 Central control system (DCS302C(A)61)Collective / individual operation (Central remote controller)

Purposes and functions• Beside the operation by central remote controller, the

remote controller for HRV unit can change the ventilation mode setting, the ventilation air flow setting and etc.

Cautions1. In case of Zone control, the operation / stop and the timer

setting cannot be done by the remote controller for the HRV unit. (The operation lamp blinks twice to indicate that the operation is not possible.)

2. The remote controller for the HRV unit cannot set the group no. for centralized control. In this case, the remote controller for the indoor unit has to be connected once for this setting.

3. It is not possible to have precool / preheat time setting function.


Switch setting of the HRV unitGroup no. setting for central control is required.It is necessary to set the group number for each unit connected to the central transmission line (terminal no. (F1) and (F2)).Initial setting is required by the remote controller for indoor unit.• In case of collective / individual control

Collective zone interlock setting................................. “OFF” (as per factory set)

• In case of zone control Collective zone interlock setting................................. “ON” [17(27) · 8 · 02]

Optional accessories required• Remote controller : BRC301B61

Purposes and functionsIt is possible to have collective ON / OFF or individual ON / OFF without zone control (while setting the 64 zones).It is also possible to connect the unified ON / OFF controller and etc.

Cautions1. It is required the local setting of the group number for

central control.2. The HRV unit judges the ventilation mode individually.


Switch setting of the HRV unitThe initial setting is required by the remote controller for indoor unit.• Collective zone interlock setting

........................................ “OFF” (as per factory set)Optional accessories required

• Central remote controller : DCS302C(A)61

X9A

X10A

X11AJ1 J2 F1 F2

P1P2

P1P2

JC

SW

F1 F2

P1P2

P1P2

To central controller




(HC0035)

X9A

X10A

X11AJ1 J2 F1 F2

P1 P2

P1 P2

JC

SS1

F1 F2

P1 P2

P1 P2

X9A

X10A

X11AJ1 J2 F1 F2

P1 P2

P1 P2

JC

SS1

F1 F2

P1 P2

P1 P2

T1 T2D1D2

F1 F2TeS1


Power supply

Connecting line can be extendedup to 1000 m maximum.



(HC0036)

VAM–GJ Series 25


Collective operation (Schedule timer DST301B(A)61)

Collective operation [Adapter PCB for remote control KRP2A Series]

Purposes and functions• A maximum of 128 units can be controlled the collective

operation / stop by weekly schedule.Cautions

1. The setting of group number for central control is not required.

2. The HRV unit judges the ventilation mode individually.3. The power supply for the schedule timer can be supplied

from the PCB of the unit. (X18A for the indoor unit and X11A for the HRV unit)


Switch setting of the HRV unitThe initial setting is required by the remote controller for the indoor unit.• Collective zone interlock setting

....................................... “OFF” (Factory setting) Optional accessories required

• Schedule timer : DST301B(A)61

Purposes and functionsA maximum of 64 groups can be controlled the operation of “ON / OFF” collectively. (For the individual control, use the central remote controller or the unified ON / OFF controller.)

Cautions1. Adapter PCB can be installed in any unit connected to the

central transmission line.2. It cannot be used with other central controller.3. The setting of group number is not required.4. The HRV unit judges the ventilation mode individually.

Example control wiring

Switch setting of the HRV unitThe initial setting is required by the remote controller for the indoor unit or HRV unit.• Collective zone interlock setting

.................................“OFF” (as per factory setting)• The setting of switch on the PCB• Voltage / no-voltage changeover switch(SS1)

................................. “no-voltage”* Remote control mode changeover switch (RS1) should be

selected.Optional accessories required

• Wiring adapter for electrical appendices : KRP2A61

X9A

X10A

X11AJ1 J2

X18AF1 F2

P1 P2

P1 P2

JC

SS1

F1 F2

P1 P2

P1 P2

X9A

X10A

X11AJ1 J2 F1 F2

P1 P2

P1 P2

JC

SS1

F1 F2

P1 P2

P1 P2

D1D2

F1 F2TeS1

Schedule timerConnecting line can be extendedup to 1000 m maximum.Power supply

DC 16V



(HC0037)

B1 B2 BC W1 W2 W3 W4

X9A

X10A

X11AJ1 J2

X18A

F1 F2

P1 P2

P1 P2

JC

SS1

F1 F2

P1 P2

P1 P2

X9A

X10A

X11AJ1 J2 F1 F2

P1 P2

JC

SS1

F1 F2

P1 P2

P1 P2

PCB board KRP2A series(installed in the indoor unit)


Remote control board(local supply)

ON / OFF No-voltage normallyopen contact formicro-current




(HC0038)

26 VAM–GJ Series


Multi function central controller + Unified ON / OFF Controller

*1. Setting to the independent ventilation operation mode is available, if zone interlock setting is "ON" with the air conditioner in the same zone.

*2. RC1 is available in case of VAM-GJ series.*3. Fresh-up of RCA or RCB is available at initial setting.

Proper controller should be selected according to the functions required.

System description


* It is possible to combine the schedule timer.RC1 ............Central remote controllerRC2 ............Unified ON / OFF controllerRSA, RSB ..Remote controller for the Indoor unitR1 – 4.........Remote controller for the HRV unit

Central remote controller Power supply

RSA

[1-00]

[1-05]

[1-01] [1-02]

[1-04] [1-03]

[1-06] [1-07]

[1-09] [1-08]

Unified ON / OFF controllerPower supply

Power supply

RC2

RC1

1 2 3A

5 4

6 7 8B

10 9

RSB

R4

R2

R3

R1

Zon

e se

tting

(Ind

ivid

ual o

pera

tion

of e

ach

grou

p)Z

one

setti

ng(C

olle

ctiv

e op

erat

ion

for

plur

al g

roup

)

*1

Totalevaluation

Setting Choise condition

HRV unit side

Interlock

Operation / stop

Independent ventilation

Operation/stop(Independent

ventilation operation mode)

Ventilation air flow

Ventilation modeFresh-up

*2 *3

Filter-signMalfunction code

Uni

t No.

Zon

e se

tting

Initi

al s

ettin

gby

rem

ote

cont

rolle

r

Rem

ote

cont

rolle

r

Indi

vidu

al

Col

lect

ive

RC

1

Zone interlock

ON OFFON OFF R

C2

RS

A o

r B

R1~

4

RC

1

RC

2

RS

A o

r B

R1~

4

RC

1

RC

2

RS

A o

r B

R1~

4

RC

1

RC

2

RS

A o

r B

R1~

4

RC

1

RC

2

RS

A o

r B

R1~

4

Operation display functions ( means possible)

Group number setting for

centralized control

Energy saving

Not required (Setting required only for A )

Col

lect

ive

by z

one Linked

to ALinked

to A

Linkedto B

Linkedto B

Not required (Setting required only for B )

Once connected

Once connected

Once connected

Not available

Not available

HRV unit setting error (Set zone interlock to "OFF", in case of no air

conditioner in the same zone.)

VAM–GJ Series 27


2.3.4 Examples of mistakes in wiring and system designing

It is necessary to install the remote controller for the transmission line.

The centralized transmission line should be connected to the indoor unit.

<Part 1>• When you connect the transmission line for the remote

controller, the remote controller should be installed on the transmission line.


ReasonBecause the signal through the transmission line is originated from the remote controller, there is no transmission signal to operate the units, if the remote controller is not installed.

<Part 2>• If the HRV unit is interlocked to the centralized controller,

the central transmission line should be connected to the terminal no. F1 and F2 of indoor unit.


ReasonThe information from the indoor unit cannot be transmitted to the central controller through the HRV unit. And also the information from the central controller cannot be transmitted to the indoor unit through the HRV unit.

X9A X14A

X15A

X17AX10A

X11A

J1 J2 F1 F2

P1 P2

JC

SS1

F1 F2

P1 P2

(HC0041)


No remote controller

X9A

X10A

X11A

J1 J2 F1 F2

P1 P2

JC

SS1

F1 F2

P1 P2

P1 P2

(HC0042)

To central controller Centralized transmission line



28 VAM–GJ Series


2.3.5 Setting of remote controller for HRV unitList of Settings

Note:1. indicates the setting position at the factory.2. The settings are applied to the entire group, but if the mode no. inside the parentheses is selected, the settings can be applied to individual

indoor units.However, it is only possible to check any changes made to the settings inside the parentheses in individual mode.(For group batch operation, the changes are made but the display remains as it was when shipped from the factory.)

3. Do not set anything not shown above. If the applicable functions are not available, they will not be displayed.4. When returning to normal mode, the remote controller is initialized, so the display might show “88.”5. Group number setting for centralized controller

(1) Mode No. 00 : Group controller(2) Mode No. 30 : Individual controller * Regarding the setting procedure, refer to the section “Group number setting for centralized control” in the operating manual of either the on/off controller or the central controller.

6. Details of external input setting“Last command”............Only when HRV units are in independent operation. External input is not available with interlocked operation of HRV units and air conditioners.“Priority on external input” ... Remote controllers are available while the external input terminal is closed. Remote controllers are not available

while the external input terminal is open. External input is not available with interlocked operation of HRV units and air conditioners.

“Priority on operation” ... Either air conditioner remote controllers with interlocked operation of HRV units and air conditioners, or external input is in operation, when HRV units are in operation.Setting is available with interlocked operation of HRV units and air conditioners.

7. Details of external input terminal function are as follows:

* Setting position “04” does not function with interlocked operation of HRVs and air conditioners.C : 3P034928-5J

Mode No. Setting switch

No.Description of Setting

Setting position No. (NOTE 1)

Groupsettings

Individual settings

01 02 03 04 05 06

17 27

0 Filter cleaning time settingApprox.

2500 hoursApprox.

1250 hoursNo counting – – –

1Nighttime free cooling operation start time (after other air conditioners operating together with the unit have been stopped)

Off 2 hours 4 hours 6 hours 8 hours –

2 Pre-cool/pre-heat on/off setting Off On – – – –

3 Pre-cool/pre-heat time setting 30 min 45 min 60 min – – –

4 Fan speed initial setting Normal Ultra high – – – –

5

Yes/No setting for direct duct connection with VRV system

No duct(Air flow setting)

With duct (fan off)

– – – –

Setting for cold areas (Fan operation selection for heater thermo OFF)

– –No duct With duct

Fan off Fan L Fan off Fan L

6Nighttime free cooling operation air flow setting

High Ultra high – – – –

7 Centralized/individual setting Centralized Individual – – – –

8 Centralized zone interlock setting No Yes – – – –

9 Pre-heat time extension setting 0 min 30 min 60 min 90 min – –

18 28

0 External signal JC/J2Last

commandPriority on

external inputPriority onoperation

– – –

1 Setting for direct Power ON Off On – – – –

2 Auto restart setting Off On – – – –

3 External damper operation – – On – – –

4 Indication of ventilation mode/Not indication Indication No Indication – – – –

7 Fresh up air supply/exhaust settingNo Indication No Indication Indication Indication – –

Supply Exhaust Supply Exhaust – –

8External input terminal function selection (between J1 and JC)

Fresh-upOverall alarm

Overall malfunction

Forced offFan forced

offAir flow increase

9KRP50-2 output switching selection (between 1 and 3)

Humidifyingon/off

Abnormal – – – –

19 29

0 Ventilation air flow setting Low Low Low Low High High

2 Ventilation mode setting Automatic Exchange By pass – – –

3 “Fresh Up” on/off setting Off On – – – –

8 Electric heater setting No delay Exchange On, off delay On, off delay – –

Setting position Input contact Fan operation Operation lamp

01 a ON Turn ON Fresh up operation

02 a ON Turn ON Malfunction code indicates “60”

03 a OFF Blinking Malfunction code indicates “60”

04 b OFF Turn OFF Automatic reset OFF

05 b OFF Turn ON Automatic reset ON

06 a ON Turn ON Air flow rate increases (Low→High, High→Ultra high)

VAM–GJ Series 29


2.4 Functions of printed circuit board

2.4.1 Layout of switches on printed circuit board

3P034928-5J

2.4.2 Function of main connection terminal

<In case of VAM 150 ~ 1000GJVE> <In case of VAM 1500 · 2000GJVE>

1. Tranformer2. Secondary3. Primary4. Connector for supply air

fan5. Connector for exhaust air

fan

6. Connector for damper7. Power supply8. Terminals9. Connector for KPR50-210. Connector for damper

11. Connector for indoor air thermistor

12. Connector for outdoor air thermistor

13. Selector switch14. Terminal port for remote

controller

15. Terminal port for centralized control

16. Terminal port for no-voltage external input

17. Factory setting

Terminal No. Contents of function

Single phase 220 – 240 V

Power supply and earth terminal

Connection terminal for remote controller for HRV unit.

This terminal is used to receive information of the indoor unit for interlocked operation.

This terminal is used to receive information when centralized controller is connected.

Between terminal no. (J1) ~ (JC)

Used for “fresh up operation” by external input.

Between terminal no. (J2) ~ (JC)

Used for Operation / Stop by external input.

Pow

er s

uppl

yR

emot

e co

ntro

ller

Cen

tral

ized

In

put f

rom

out

side

J1 J2 JC

P1 P2

L NTeS1

F1 F2

(HC0043)

30 VAM–GJ Series


2.5 Fan operation setting

2.6 Pre-operation flowchart

Operating command Operation command

By the remote controller for indoor unit

By the central controller

Mode setting by remote controller for indoor unit mode setting


Interlocked control interlocked to single-group and two-groups

—

Only for cooling and heating mode

Initial setting by the remote controller for indoor unit Fan operation

Ventilation air flow setting

Fan speed

Ventilation air flow setting

Fan speed

Normal

Low

High

Ultra-high

Low

High

Normal

Low

High

Ultra-high

Switch on the PCB (H / M / L)

“L”

“M”

“H”

Low

High

Fresh-up operation

Off

On

Off

On

Off

On

Off

On

Terminal between J1 and JC

(Fresh-up by external command)

Open

Short-circuit

Open

Short-circuit

Open

Short-circuit

Open

Short-circuit

Terminal between J1 and JC

(Fresh-up by external command)

Open

Short-circuit

Open

Short-circuit

Open

Short-circuit

Supply side

Low

High

High

Ultra-high

Low

High

Ultra-high

Ultra-high

Supply side

Low

High

High

Ultra-high

Low

High

Ultra-high

Ultra-high

Supply side

Low

High

High

Ultra-high

Ultra-high

Ultra-high

Exhaust side

Low

Low

High

High

Low

Low

Ultra-high

High

Exhaust side

Low

Low

High

High

Low

Low

Ultra-high

High

Exhaust side

Low

Low

High

High

Ultra-high

High

Supply side

Low

Low

High

High

Low

Low

Ultra-high

High

Supply side

Low

Low

High

High

Low

Low

Ultra-high

High

Supply side

Low

Low

High

High

Ultra-high

High

Exhaust side

Low

High

High

Ultra-high

Low

High

Ultra-high

Ultra-high

Exhaust side

Low

High

High

Ultra-high

Low

High

Ultra-high

Ultra-high

Exhaust side

Low

High

High

Ultra-high

Ultra-high

Ultra-high

With

rem

ote

cont

rolle

r fo

r in

door

uni

t

Inte

rlock

ed o

pera

tion

syst

em

With

rem

ote

cont

rolle

r fo

r H

RV

uni

t

Inde

pend

ent s

yste

mC

entr

aliz

ed

cont

rol s

yste

m

With

rem

ote

cont

rolle

r

Inde

pend

ent s

yste

mC

entr

aliz

ed

cont

rol

syst

em

Fan operation

Fan operation

Fresh-upSupply air setting

Fresh-upExhaust air setting

(HC0044)

system

Operating command

Precool / preheat setting “ON”

More than 2 hours elapsed

after the unit stopped.

Setting time (30 minutes 45 minutes 60 minutes)

Extension of the setting time only for preheat (30 minutes 60 minutes 90 minutes)

time counting

Stand-by for operation

Setting time elapsed

Operation starts

N

N

Y

YN

Y

(HC0045)

VAM–GJ Series 31


2.7 Operation mode change over

1. In case of cooling operation1 zone: Free cooling (cooling by outdoor air) in bypass

mode.*2 zone: Room temperature to be achieved to set temperature

by heat exchange mode.3 zone: Room temperature to be achieved to set temperature

in bypass mode. *4 zone: Fresh air supply is cooled down by indoor air in heat

exchange mode (energy saving).* The air cannot be supplied at the same temperature

as the outdoor air because it is partly heat-exchanged.

2. In case of heating operation1 zone: Fresh air supply is heated up by indoor air in heat

exchange mode (energy saving).2 zone: Free heating (heating by outdoor air) in bypass

mode.*3 zone: Room temperature to be achieved to set temperature

by heat exchange. 4 zone: Room temperature to be achieved to set temperature

by bypass mode. ** The air cannot be supplied at the same temperature

as the outdoor air because it is partly heat-exchanged.

3. In case of fan operation only Ventilation mode is individually determined by the original formula of HRV with the temperature sensors.

1

4

2

3

Cooling Heatexchange

Heatexchange

BypassBypass

Out

door

tem

p.(O

.T.)

Set temp.of A / C

Set temp.of A / C

O.T.>R.T.

O.T=R.T.O.T<R.T.

Room temp.(R.T.)

(HC0046)

1

42

3

Heating Heatexchange

Heatexchange

Bypass

Bypass

Out

door

tem

p.(O

.T.)

Set temp.of A / C

Set temp.of A / C

O.T.>R.T.

O.T=R.T.O.T<R.T.

Room temp.(R.T.)

(HC0047)

Fan Heatexchange

Heatexchange

Bypass Bypass

Out

door

tem

p.(O

.T.)

approx.22 ˚C

O.T.>R.T.

O.T=R.T.O.T<R.T.

Room temp.(R.T.)

(HC0048)

32 VAM–GJ Series

ED71-613 Product specification

3. Product specification

3.1 Specification

Test conditions are as follows.

Note:1. Operation sound is measured at 1.5 m below the center of the body. 2. Air flow rate can be changed over to Low mode or High mode.3. Nomal AMP., input, efficiency depend on the other above conditions.4. Operating sound is measured in an anechoic chamber.

Operating sound level generally may become greater than this value depending on the operating conditions, reflected sound, and peripheral noise.

5. The sound level at the air discharge port is about 8 dB higher than the unit’s operating sound.6. The specifications, designs and information here are subject to change without notice.7. Temperature Exchange Efficiency is the mean value in cooling and heating.8. Efficiency is measured under the following conditions.

Ratio of rated external static pressure has been kept as follows. Outdoor side to indoor side = 7 to 1

(50 / 60Hz)

Model name VAM150GJVE VAM250GJVE VAM350GJVE

Power supply Single phase 220 – 240 V / 220 V, 50 / 60 Hz

Temperature exchange efficiency

Ultra-High % 79 / 79 75 / 75 79 / 79

High % 79 / 79 75 / 75 79 / 79

Low % 84 / 85 79 / 79 82 / 82

Enthalpy exchange efficiency

Cooling

Ultra-High % 66 / 66 63 / 63 66 / 66

High % 66 / 66 63 / 63 66 / 66

Low % 70 / 70.5 66 / 66 70 / 70

Heating

Ultra-High % 72 / 72 71 / 71 70 / 70

High % 72 / 72 71 / 71 70 / 70

Low % 76 / 76.5 74 / 74 77 / 77

Casing Galvanized steel plate

Insulation material Self-extinguishable urethane foam

Dimensions H × W × D mm 278 × 810 × 551 278 × 810 × 551 306 × 879 × 800

Heat exchange system Air to air cross flow total heat (sensible heat + latent heat) exchange

Heat exchange element Specially processed nonflammable paper

Air filter Multidirectional fibrous fleeces

Fan

Type Sirroco fan

Air flow rateHeat exchange mode

Ultra-High m3 / h 150 / 150 250 / 250 350 / 350

High m3 / h 150 / 150 250 / 250 350 / 350

Low m3 / h 100 / 95 155 / 155 230 / 230

External static pressure

Ultra-High Pa 120 / 154 70 / 96 169 / 222

High Pa 106 / 131 54 / 65 141 / 145

Low Pa 56 / 60 24 / 20 67 / 30

Fan motor Type Open type capacitor permanent split-phase induction motor, 4 poles × 2

Motor output kW 0.030 × 2 0.030 × 2 0.090 × 2

Operating sound

Heat exchange mode

Ultra-High dBA 27 – 28.5 / 28.5 27 – 29 / 29 31.5 – 33 / 33

High dBA 26 – 27.5 / 27.5 26 – 27.5 / 28 30 – 31.5 / 30

Low dBA 20.5 – 21.5 / 21 21 – 22 / 21 23 – 25 / 23

Bypass mode

Ultra-High dBA 28.5 – 29.5 / 29.5 28.5 – 30.5 / 30.5 33 – 34.5 / 34.5

High dBA 27.5 – 28.5 / 28.5 27.5 – 29 / 29.5 31.5 – 33 / 31.5

Low dBA 22.5 – 23.5 / 22 22.5 – 23 / 22.5 24.5 – 26.5 / 24.5

Operation range (Ambient) –15°C to 50°CDB (80% RH or less)

Connection duct diameter mm φ 100 φ 150 φ 150

Weight kg 24 24 32

Drawing number C : 4D051116 C : 4D051117 C : 4D051118

ConditionIndoor Outdoor

°CDB R · H (%) °CDB R · H (%)

Cooling condition 27 50 35 60

Heating condition 20 40 7 70

VAM–GJ Series 33

Product specification ED71-613






(50 / 60Hz)




Ultra-High % 74 / 74 75 / 75 72 / 72

High % 74 / 74 75 / 75 72 / 72

Low % 80 / 80.5 77 / 77.5 74 / 74.5


Cooling

Ultra-High % 55 / 55 61 / 61 61 / 61

High % 55 / 55 61 / 61 61 / 61

Low % 59 / 59.5 64 / 64.5 64 / 64.5

Heating

Ultra-High % 67 / 67 67.5 / 67.5 65 / 65

High % 67 / 67 67.5 / 67.5 65 / 65

Low % 74 / 74.5 71.5 / 72 67.5 / 68



Dimensions H × W × D mm 306 × 879 × 800 338 × 973 × 832 387 × 1,111 × 832




Fan

Type Sirroco fan


Ultra-High m3 / h 500 / 500 650 / 650 800 / 800

High m3 / h 500 / 500 650 / 650 800 / 800

Low m3 / h 320 / 295 500 / 470 700 / 670


Ultra-High Pa 105 / 150 85 / 125 133 / 170

High Pa 66 / 52 53 / 67 92 / 85

Low Pa 32 / 18 35 / 38 72 / 61


Motor output kW 0.090 × 2 0.140 × 2 0.280 × 2

Operating sound

Heat exchange mode

Ultra-High dBA 33 – 35.5 / 34 34 – 36 / 36 39 – 40.5 / 39.5

High dBA 31.5 – 34 / 32 33 – 34.5 / 34 37 – 39.5 / 37.5

Low dBA 25 – 28.5 / 24 27.5 – 29.5 / 28 35 – 37.5 / 34

Bypass mode

Ultra-High dBA 34.5 – 36 / 35.5 35 – 37.5 / 37.5 40.5 – 42 / 41

High dBA 33 – 34.5 / 33.5 33 – 35.5 / 35.5 38.5 – 40 / 39

Low dBA 25.5 – 28.5 / 25.5 27.5 – 30.5 / 29.5 36 – 38.5 / 35.5



Weight kg 32 45 55


ConditionIndoor Outdoor

°CDB R · H (%) °CDB R · H (%)



34 VAM–GJ Series







(50 / 60Hz)




Ultra-High % 78 / 78 72 / 72 77 / 77

High % 78 / 78 72 / 72 77 / 77

Low % 80.5 / 81 75.5 / 76 79 / 81


Cooling

Ultra-High % 64 / 64 61 / 61 62 / 62

High % 64 / 64 61 / 61 62 / 62

Low % 68.5 / 69 64 / 64.5 66 / 67

Heating

Ultra-High % 70 / 70 65 / 65 72 / 72

High % 70 / 70 65 / 65 72 / 72

Low % 72.5 / 73 67 / 67.5 75 / 76



Dimensions H × W × D mm 387 × 1,111× 1,214 785 × 1,619 × 832 785 × 1,619 × 1,214




Fan

Type Sirroco fan


Ultra-High m3 / h 1,000 / 1,000 1,500 / 1,500 2,000 / 2,000

High m3 / h 1,000 / 1,000 1,500 / 1,500 2,000 / 2,000

Low m3 / h 860 / 840 1,320 / 1,260 1,720 / 1,580


Ultra-High Pa 168 / 192 112 / 150 116 / 140

High Pa 110 / 86 73 / 72 58 / 32

Low Pa 85 / 60 56 / 50 45 / 45


Motor output kW 0.280 × 2 0.280 × 4 0.280 × 4

Operating sound

Heat exchange mode

Ultra-High dBA 39.5 – 41.5 / 39.5 39.5 – 41.5 / 41.5 41.5 – 43.5 / 42

High dBA 37.5 – 39.5 / 37.5 37.5 – 39.5 / 39.5 39 – 43 / 40

Low dBA 35 – 37.5 / 34.5 35 – 37.5 / 36 36 – 39 / 39

Bypass mode

Ultra-High dBA 40.5 – 42.5 / 40.5 41 – 43 / 42.5 43 – 45.5 / 44

High dBA 38.5 – 40.5 / 38.5 39.5 – 41 / 41.5 40.5 – 45 / 42

Low dBA 36 – 38.5 / 35.5 36.5 – 38 / 37.5 37.5 – 39.5 / 41



Weight kg 67 129 157


ConditionIndoor unit Outdoor unit

°CDB R · H (%) °CDB R · H (%)



VAM–GJ Series 35


3.2 Dimensions

VAM150GJVE

VAM250GJVE

Unit (mm)

3D051174

Unit (mm)

3D051175

36 VAM–GJ Series


VAM350GJVE

VAM500GJVE

Unit (mm)

3D051176

Unit (mm)

3D051177

VAM–GJ Series 37


VAM650GJVE

VAM800GJVE

Unit (mm)

3D051178

Unit (mm)

3D051179

38 VAM–GJ Series


VAM1000GJVE

VAM1500GJVE

Unit (mm)

3D051180

Unit (mm)

3D051181

VAM–GJ Series 39


VAM2000GJVE

Remote controller (BRC301B61)

Unit (mm)

3D051182

3D013155A

Unit (mm)

40 VAM–GJ Series


3.3 Wiring diagram

VAM150GJVE / VAM250GJVE / VAM350GJVE / VAM500GJVEVAM650GJVE / VAM800GJVE / VAM1000GJVE

VAM–GJ Series 41


VAM1500GJVEVAM2000GJVE

42 VAM–GJ Series


3.4 Fan performance

VAM150GJVE

VAM250GJVE

4D042374

4D042375

VAM–GJ Series 43


VAM350GJVE

VAM500GJVE

4D042376

4D042377

44 VAM–GJ Series


VAM650GJVE

VAM800GJVE

4D042378

4D042379

VAM–GJ Series 45


VAM1000GJVE

VAM1500GJVE

4D042380

4D042381

46 VAM–GJ Series


VAM2000GJVE

4D042382

VAM–GJ Series 47


3.5 The correction ratio of exchange efficiency

<Example of correction>

VAM500 (50 Hz) : Air flow rate at strong notch 500 m3 / H (Cooling) Enthalpy exchanging efficiency 55%

Supply air and exhaust air flow rate for fresh-up mode :Supply air flow rate / Exhaust air flow rate = 550 / 500 = 1.1(Cooling) Enthalpy exchange efficiency from above Table 55 × 0.96 = 52.8% Correction ratio

C : 4D023764

48 VAM–GJ Series


3.6 Sound level data

3.6.1 Overall sound level

3.6.2 Power level

Ventilation Mode220V / 50Hz 230V / 50Hz

Total Heat Exchange mode

Bypass modeTotal Heat

Exchange modeBypass mode

Fan Speed U-H H L U-H H L U-H H L U-H H L

Model

VAM150GJVE 27 26 20.5 28.5 27.5 22.5 28 26.5 21 29 28 23VAM250GJVE 27 26 21 28.5 27.5 22.5 28 27 21.5 29.5 28 22.5VAM350GJVE 31.5 30 23 33 31.5 24.5 32.5 31.5 24 33.5 32 25VAM500GJVE 33 31.5 25 34.5 33 25.5 34.5 32.5 26.5 35 33.5 27VAM650GJVE 34 33 27.5 35 33 27.5 35 33.5 28.5 36 34.5 29VAM800GJVE 39 37 35 40.5 38.5 36 40 38.5 36.5 41.5 39.5 37VAM1000GJVE 39.5 37.5 35 40.5 38.5 36 40.5 39 36.5 41.5 39.5 37.5VAM1500GJVE 39.5 37.5 35 41 39.5 36.5 41 39 37 42.5 40.5 37.5VAM2000GJVE 41.5 39 36 43 40.5 37.5 42.5 41.5 38 44 42.5 39

Ventilation Mode240V / 50Hz 220V / 60Hz

Total Heat Exchange mode

Bypass modeTotal Heat

Exchange modeBypass mode

Fan Speed U-H H L U-H H L U-H H L U-H H L

Model

VAM150GJVE 28.5 27.5 21.5 29.5 28.5 23.5 28.5 27.5 21 29.5 28.5 22VAM250GJVE 29 27.5 22 30.5 29 23 29 28 21 30.5 29.5 22.5VAM350GJVE 33 31.5 25 34.5 33 26.5 33 30 23 34.5 31.5 24.5VAM500GJVE 35.5 34 28.5 36 34.5 28.5 34 32 24 35.5 33.5 25.5VAM650GJVE 36 34.5 29.5 37.5 35.5 30.5 36 34 28 37.5 35.5 29.5VAM800GJVE 40.5 39.5 37.5 42 40 38.5 39.5 37.5 34 41 39 35.5VAM1000GJVE 41.5 39.5 37.5 42.5 40.5 38.5 39.5 37.5 34.5 40.5 38.5 35.5VAM1500GJVE 41.5 39.5 37.5 43 41 38 41.5 39.5 36 42.5 41.5 37.5VAM2000GJVE 43.5 43 39 45.5 45 39.5 42 40 39 44 42 41

VAM150GJVE dB(A) VAM250GJVE dB(A)

Model Power Supply 63 125 250 500 1000 2000 4000 8000 Model Power Supply 63 125 250 500 1000 2000 4000 8000

VAM150GJVE

50Hz

220V

U-H 36.5 31.5 30.1 29.9 22.9 16.6 6.2 4.6

VAM250GJVE

50Hz

220V

U-H 36.5 36.8 32.2 27.7 22.6 16.2 7.3 12.3

H 35.2 31.2 29.2 28.7 21.8 15.4 6.9 4.5 H 37.4 34.7 30.5 26.6 21.1 15.1 6.7 12.0

L 35.2 25.2 22.8 21.9 17.0 10.0 8.1 4.6 L 35.5 27.5 23.8 20.4 16.4 13.0 7.7 12.1

230V

U-H 36.5 32.2 31.8 30.9 23.8 17.2 6.2 5.1

230V

U-H 36.4 38.0 32.5 28.5 23.1 16.8 8.2 10.0

H 36.8 31.3 29.5 29.2 22.5 15.8 9.2 4.1 H 37.4 36.6 31.5 27.5 21.9 16.0 9.1 10.4

L 35.3 25.8 23.5 22.5 17.4 10.3 8.4 3.8 L 35.2 28.6 24.6 20.9 17.1 13.1 8.8 11.6

240V

U-H 36.7 32.6 33.0 31.3 24.1 17.4 8.3 5.3

240V

U-H 36.4 39.2 33.9 29.4 24.1 17.5 9.5 10.1

H 35.7 32.1 30.8 30.2 23.4 16.7 8.2 4.7 H 36.1 37.0 32.1 28.1 22.6 16.3 8.7 9.8

L 35.2 25.8 23.5 22.6 17.6 12.3 12.1 2.7 L 35.4 29.5 25.1 21.8 17.4 13.1 7.2 11.4

60Hz 220V

U-H 37.6 35.4 31.9 29.0 25.4 19.2 11.9 4.0

60Hz 220V

U-H 36.0 39.0 34.0 29.3 24.3 17.6 8.8 10.4

H 37.5 33.3 30.9 27.8 24.8 18.7 11.8 6.7 H 37.2 37.3 33.5 28.2 22.9 16.8 10.7 11.3

L 35.0 25.7 23.4 23.4 16.4 9.4 10.2 5.1 L 33.8 27.0 25.4 22.2 15.0 11.4 5.8 10.5



VAM350GJVE

50Hz

220V

U-H 40.9 39.7 35.6 31.0 28.0 23.7 17.7 16.9

VAM500GJVE

50Hz

220V

U-H 38.6 39.0 36.6 33.6 29.0 24.6 20.1 11.6

H 41.2 38.5 34.2 29.8 26.0 21.6 15.6 16.5 H 37.7 37.0 34.4 32.0 27.1 22.5 17.4 7.7

L 33.7 30.5 27.5 24.0 17.4 13.5 5.8 7.5 L 36.1 31.6 28.0 26.2 20.1 16.3 11.5 8.3

230V

U-H 45.1 40.7 35.9 32.0 29.6 24.5 18.1 8.3

230V

U-H 38.9 40.5 37.5 35.5 30.9 25.9 21.3 13.3

H 44.4 39.8 35.3 31.1 27.8 23.4 17.4 9.1 H 37.9 38.0 35.7 33.6 28.5 23.8 18.8 10.5

L 38.9 31.7 27.7 26.1 18.7 14.9 8.0 7.6 L 38.1 33.1 29.4 28.1 21.6 17.6 13.2 9.5

240V

U-H 42.3 41.9 36.7 32.2 29.8 25.0 19.2 10.3

240V

U-H 39.5 42.0 38.6 36.1 32.1 26.7 22.0 14.4

H 39.6 40.1 35.5 31.0 28.0 23.3 17.3 8.4 H 39.0 39.7 37.2 35.0 30.2 25.5 20.8 13.2

L 32.8 32.9 28.8 27.2 19.6 15.5 8.8 7.1 L 37.2 34.4 31.6 30.1 23.4 19.7 15.7 11.8

60Hz 220V

U-H 40.3 40.9 37.1 33.3 29.2 24.7 19.3 9.7

60Hz 220V

U-H 39.3 38.0 37.0 35.5 30.4 25.3 20.7 12.1

H 37.9 38.5 34.3 30.3 25.9 21.1 15.3 16.8 H 36.7 36.3 34.9 34.0 27.8 23.4 18.0 9.6

L 29.7 29.9 26.0 24.8 17.8 14.5 8.4 10.0 L 35.7 29.9 25.4 26.3 18.8 15.2 9.8 7.5

HzNotch

HzNotch

HzNotch

HzNotch

VAM–GJ Series 49


Measuring place

Note:1. Operation sound is measured in an anechoic chamber.2. The sound is measured at 1.5 m below the center of the body.3. The operating sound level may become greater than this value depending on

the operating conditions, reflected sound, and peripheral noise.4. Operation sound differs with operation and ambient conditions.5. The power levels have been calculated on the assumption that the measuring

point were right under the source of operating sound.6. U-H: Ultra high

H: HighL: Low



VAM650GJVE

50Hz

220V

U-H 44.3 38.3 36.6 35.3 30.5 25.5 17.3 16.3

VAM800GJVE

50Hz

220V

U-H 51.7 45.6 46.1 38.7 34.2 28.1 20.6 10.6

H 44.8 37.2 35.4 34.1 29.8 24.9 15.8 16.8 H 49.6 43.4 43.8 36.7 32.3 26.1 18.4 9.1

L 39.4 31.9 28.7 28.7 24.2 20.9 8.5 16.1 L 47.1 40.6 42.3 34.9 30.1 24.0 15.7 3.3

230V

U-H 44.8 39.3 37.5 36.1 31.7 26.5 18.2 16.8

230V

U-H 51.7 47.1 47.6 39.2 35.1 28.8 21.4 12.3

H 43.8 37.5 35.7 34.6 30.2 25.3 16.4 16.9 H 50.7 45.2 45.3 38.1 33.8 27.6 19.9 9.5

L 41.4 32.8 30.0 29.3 25.4 21.2 8.3 15.0 L 48.5 42.7 44.1 36.1 31.4 25.3 17.2 6.6

240V

U-H 46.3 41.1 38.7 37.0 32.6 27.6 19.4 17.8

240V

U-H 52.0 47.8 48.0 39.6 35.4 29.1 21.8 12.6

H 44.8 38.9 37.0 35.6 31.1 26.1 17.5 17.2 H 51.8 46.4 47.0 38.9 34.5 28.5 20.9 11.6

L 41.4 34.0 31.2 30.3 26.6 22.2 10.2 15.3 L 50.0 43.3 45.4 37.1 32.3 26.2 18.4 6.9

60Hz 220V

U-H 46.3 40.5 39.0 37.0 32.8 27.7 19.7 17.0

60Hz 220V

U-H 52.0 45.8 46.1 39.3 35.0 28.8 21.3 12.3

H 44.9 38.2 36.5 35.1 30.7 25.7 17.1 17.0 H 50.1 44.1 43.5 37.4 33.3 26.6 18.8 7.9

L 41.0 31.9 29.6 28.7 25.1 21.4 10.7 18.1 L 46.8 40.4 39.4 34.7 29.8 23.5 14.9 3.8



VAM1000GJVE

50Hz

220V

U-H 50.3 46.2 47.2 39.3 33.9 27.8 20.7 12.5

VAM1500GJVE

50Hz

220V

U-H 52.2 46.1 46.6 39.2 34.7 28.6 21.1 11.8

H 48.8 44.3 45.2 37.2 32.0 25.8 17.9 8.1 H 50.1 43.9 44.3 37.2 32.8 26.6 18.9 9.5

L 48.7 42.0 41.8 35.3 29.4 23.6 14.5 5.8 L 47.1 40.6 42.3 34.9 30.1 23.9 15.5 10.3

230V

U-H 50.1 46.8 48.3 40.2 34.9 28.7 21.7 13.2

230V

U-H 52.7 48.1 48.6 40.2 36.1 29.9 22.4 14.1

H 50.2 44.9 47.2 38.6 33.1 27.0 19.5 10.2 H 51.2 45.7 45.8 38.6 34.3 28.1 20.4 10.4

L 48.9 42.9 43.7 37.0 30.8 24.9 16.3 9.0 L 49.0 43.2 44.6 36.6 31.9 25.8 17.7 12.2

240V

U-H 51.9 48.2 49.2 41.2 35.7 29.9 23.0 14.8

240V

U-H 53.0 48.8 49.0 40.6 36.4 30.1 22.9 14.3

H 49.9 46.3 47.6 39.1 33.7 27.6 20.3 13.1 H 51.8 46.3 46.9 38.8 34.4 28.4 20.8 11.4

L 49.8 44.0 45.4 37.2 31.6 25.6 17.4 10.7 L 50.0 43.3 45.4 37.1 32.3 26.2 18.4 10.0

60Hz 220V

U-H 50.7 46.3 47.4 38.7 34.2 27.8 20.7 13.2

60Hz 220V

U-H 54.0 47.8 48.1 41.3 37.0 30.8 23.3 15.5

H 50.1 44.1 45.0 37.2 32.1 25.7 18.6 10.0 H 52.1 46.1 45.5 39.4 35.3 28.6 21.0 12.3

L 48.0 40.8 41.2 34.9 29.4 23.8 14.8 5.4 L 48.8 42.4 41.4 36.7 31.8 25.5 17.3 7.7

VAM2000GJVE dB(A)

Model Power Supply 63 125 250 500 1000 2000 4000 8000

VAM2000GJVE

50Hz

220V

U-H 52.3 48.2 49.2 41.3 36.0 29.8 23.0 15.1

H 50.4 45.9 46.8 38.8 33.6 27.5 19.7 11.3

L 49.5 42.8 42.6 36.7 30.7 25.0 16.0 8.2

230V

U-H 52.1 48.8 50.3 42.2 36.9 30.8 23.8 16.1

H 52.8 47.5 49.8 41.2 35.7 29.6 22.3 14.6

L 50.4 44.4 45.2 38.5 32.3 26.4 18.1 10.8

240V

U-H 54.1 50.0 51.2 43.3 38.0 31.8 24.9 17.5

H 54.3 49.8 50.7 42.7 37.5 31.4 23.9 17.3

L 52.4 45.7 45.5 39.6 33.6 27.9 19.5 13.5

60Hz 220V

U-H 52.9 48.5 49.7 41.4 36.9 30.6 23.5 16.0

H 52.3 46.3 47.2 39.9 34.8 28.4 21.1 13.8

L 52.5 45.3 45.7 39.4 34.0 28.4 20.2 14.6

Location of microphone

Measuring point

1.5 m

4D042394

HzNotch

HzNotch

HzNotch

HzNotch

HzNotch

50 VAM–GJ Series


3.6.3 Octave band level

VAM150GJVE VAM250GJVE VAM350GJVE

50H

z 22

0V50

Hz

230V

50H

z 24

0V60

Hz

220V

4D042394 4D042397 4D042400

4D051338 4D051339 4D051340

4D042395 4D042398 4D042401

4D042421 4D042422 4D042423

VAM–GJ Series 51



50H

z 22

0V50

Hz

230V

50H

z 24

0V60

Hz

220V

4D042403 4D042406 4D042409

4D051342 4D051343 4D051344

4D042404 4D042407 4D042410

4D042424 4D042425 4D042426

52 VAM–GJ Series



50H

z 22

0V50

Hz

230V

50H

z 24

0V60

Hz

220V

4D042412 4D042415 4D042418

4D051345 4D051346 4D051347

4D042413 4D042416 4D042419

4D042427 4D042428 4D042429

VAM–GJ Series 53


3.7 Electric characteristics

Specifications for field supplied fuses and wire

3P034928-5J

Model TypePower supply wiring Transmission wiring

Field supplied fuses Wire Size Wire Size

VAM150GJVAM250GJVAM350GJVAM500GJVAM650GJVAM800GJ

VAM1000GJVAM1500GJVAM2000GJ

VE 15A H05VV-U3GWire size must comply

with local codes.Shield wire (2 wire) 0.75 – 1.25 mm2

4D051624

54 VAM–GJ Series

ED71-613 Installation

4. Installation

4.1 Reducing operating sound

4.2 Countermeasures

4.2.1 Points for reducing operating sound1. Operating sound heard from the air discharge outlet can be

reduced just by applying sound-insulating material to the SA (indoor air supply) duct.

2. Operating sound can be reduced more effectively by applying sound-insulating material to a portion of the SA duct near the unit body than that near the air suction / discharge grille.

4.2.2 Taking measures to reduce operating sound heard from attic-installed equipment and air ducts.

1. When installing large air volume models (650 m3 / h or more), avoid the following wherever possible if it is expected to be necessary to apply sound-insulating material to them. (Fig.1)

Making the duct diameter extremely small(Example : φ 250 → φ 150, φ 200 → φ 100)

Making the duct extremely bent using bellows (in particular, connecting bellows to the air discharge outlet of the unit body)

Making opening holes on the ceiling

Hanging the unit on a material which does not have enough hanging strengthSee “Precautions for installing and handling the unit” on pages 55 and 59.

2. Take the following sound reduction measures. (Fig.2)

Use a sound-insulating (low-permeability-to-sound) ceiling.

Note:Some sound-insulating ceilings are not very effective in reducing low-frequency element of the operating sound.

Place a sound-reducing material under the source of the operating sound.

Note:When using a sound-insulating sheet, it is necessary to have the entire body of the unit covered with it. Note, however, that some models do not allow the use of a sound-insulating sheet because it may badly affect the ventilation of their radiation heat.

4.2.3 Reducing operating sound heard from the air discharge outlet (suction inlet)

1. Use the following recommended optional accessories to reduce operating sound heard from ceiling mounted duct connection type models. (Fig.3)

The operation noise level is determined by operating an equipment unit according to the JIS standard (JIS B 8628), and converting the measurement into a value as measured in an anechoic room. Also, noise from the discharge grill is not taken into account, for only the main body is considered as sound source. In actual operation, therefore, the operation noise level tends to be higher than the indicated value.

In case of VAM150~1000GJVEDue to noise from the grill, the overall noise level becomes approx. 8 dB (for a type with a capacity of 150 to 500 m3/h) or approx. 11 dB (for a type with a capacity of 650 m3/h or more) higher than the indicated value. Also, the fan rotation speed may be higher than the rated value, depending on the actual duct resistance, which may result in a higher level of noise from the grill. Accordingly, some measures for noise control need to be taken when installing the equipment.

In case of VAM1500 · 2000GJVEEspecially, a larger type of equipment (with a capacity of 1500 or 2000 m3/h) may emit noise of a level higher than normal, if its main body is installed near the SA (indoor air supply) grill; this is because noise from the main body, led through the duct, is emitted from the discharge grill. In such a case, the overall noise level may become up to 15 dB higher than the indicated value, due to such contributions from the surroundings as echoes from the floor and walls, resonance with other equipment, and background noise. Accordingly, when installing a larger type of equipment, the main body needs to be located at a position as detached from the discharge grill as possible.If the main body must be located near the discharge grill, consider such measures as :

- the use of a sound absorbing box, a flexible duct or a sound absorbing air supply/exhaust grill; and- the dispersed installation of discharge grills.

* If equipment is to be used at a location with a low background noise (e.g. in a classroom), consider the following additional measures to control noise from the main body :

- the use of ceiling members having a high noise insulating effect (i.e. a high sound transmission loss)

- measures for sound insulation, e.g. by installing additional members in sections under and around the sound source

If necessary, consider installing equipment in a place removed from the originally planned location (e.g. in a corridor).

EA

OA RA

SA

HRV unit Air suction /dischargegrille

Flexible ductApply sound-insulatingmaterial to the SA duct.

(HC0054)

EA

OA RA

SA

HRV unit Air supplyand exhaustgrille

(HC0055)

Apply sound-insulating material here for effectiveoperating sound reduction.(Flexible duct (approx. 2m) is effective.)

Flexible duct

1 4 3 2

(HC0056)

Fig.1

1

2

3

4

(HC0057)

1 2Fig.2

1

2

VAM–GJ Series 55

Installation ED71-613

Sound-eliminating box (Silencer)

Flexible ductSound-eliminating air suction / discharge grille

2. If the above accessories do not give satisfactory effect, take the following measure.

Apply a sound-absorbing material to the interior of the room.

3. To reduce the air flow sound heard from the air discharge outlet (suction inlet) of a ceiling mounted duct connection type model, use a small diameter flexible duct, which excels in sound absorptivity, for greater sound reduction effect.

Branch duct (for letting air flow through two ducts to slow down its speed before it reaches the air discharge outlets (sunction inlets))Flexible duct

4. Installation of the unit with the source of its operating sound located at a corner of a room will be a partially effective sound reduction measure; it will keep persons in the center of the room free from the annoying operating sound, with those in the corner of the room kept annoyed by the operating sound. To avoid this, try to find the best installation place from which the operating sound is least heard by everyone in the room.

4.2.4 Effect of remedy for sound

Caution1. Be sure to connect a flexible duct (2 m) to an outlet of the main body in the indoor air supply side.2. Do not connect a spiral duct and an alminium bellows directly to the outlet of the main body. * A silencer is effective especially when using the flexible duct at the same time.

4.2.5 General comparison of the effect ( → in more effective order)

Note:Measure the noise at 1.5 m below the air supply grille. Operating noise conforms to JIS standard and the value is converted in terms of the anechoic chamber.

(HC0058)

1 32Fig.3

1

2

3

(HC0059)1

Fig.4

1

(HC0060)

1 2Fig.5

1

2

1 6

Mounting a silencer + flexible duct 2 m long Mounting a silencer + flexible duct 6 m long

Mounting a flexible duct 2 m longto an air suction discharge grill

Mounting a silencer Spiral duct 6 m No measures taken

Mounting a flexible duct 6 m long

Mounting a flexible duct 2 m long to the main body

Silencer

Silencer

Flexible duct 2 m

Flexible duct 2 m

Flexible duct 2 m

Spiral duct 4 m

Silencer

Flexible duct 6 m

Flexible duct 6 m

(Effect of a remedy for noise does not change even for over 2 m long duct)

Spiral duct 4 m

Spiral duct 4 m

Spiral duct 6 m

Spiral duct 6 m

Suction / discharge grill

Catalog value

– 5

+ 5

+ 10

(dB)

Main body Main body Main body Main body

Main body Main body Main body

43

3

2

2

5 6

1

14 5 6

(HC0061)

56 VAM–GJ Series


4.2.6 Nameplate for note“Notes for duct work” is written on the HRV units as indicated below.• When connecting a spiral duct or an aluminum bellows, sound at the air discharge outlet is higher by 8~11 phon than the main

body operating sound.• When using this unit in a quiet place, take a remedy for sound by connecting an optional flexible duct at the outlet of the indoor

air suction side of the main body.

4.3 Centralized pipings

Because the air flow shown in Fig.1 is generated when centralized OA and EA pipings for two or more HRV units normal air flow cannot be maintained. If a back flow prevention damper is installed in the duct on OA and EA side of each HRV units (Fig.3), costs will increase as compared with the case a duct is installed for each body. It is therefore recommended that a duct be installed for each body.(Before installing the back flow prevention damper, contact our engineering section.)

Wherever possible, avoid centralized OA and EA pipings for two or more HRV units, and install ducts for each body of the unit. (Fig. 2)

Fig.2: Install a duct for each HRV units.

In the above duct system diagram, the air of No.1 unit will flow into normal direction regardless of the operation of No.2 unit when one duct is provided for each unit.

EA

OA

: Direction of air flow

HRV units (No. 1 unit)

(Indoor side)


Discharge grille

Air suction grille

Discharge grille

Air suction grille(O

utdo

or s

ide)

(HC0062)

Fig.1: Centralized piping cannot be installed. Fig.3: Install a back flow prevention damper on each duct on OA and EA sides. (Field supply)

In the above duct system diagram, if a damper is not provided and No.1 unit is operated with No.2 unit being stopped, the air flows in the direction indicated by a broken line, the amount of the air supplied from outside to OA side is decreased, and the air is discharged from the discharge grille of EA side. Therefore, the air will not flow into the normal direction.

In the above duct system diagram, if a back flow prevention damper (field supply) is installed on each duct on OA and EA sides and the damper interlocked to the operation signals of HRV units, faults such as those shown in Fig.1 can be eliminated and the normal air flow maintained.(Note, however, that the above does not apply to the standard duct system.)

OA

OA

EA

RA

SA




Discharge grille

Air suctiongrille

Discharge grille

Air suction grille

(Outdoor side)

(Indoor side)

(HC0063)

OAEA

OA

EA

RA


: Damper opened

: Damper closed



Discharge grille

Air suctiongrille

Discharge grille

Air suctiongrille

(Outdoor side)

(Indoor side)

(HC0064)

VAM–GJ Series 57


4.4 Cautions

Use suspension bolts for installation. Confirm that the place for installation can stand the weight of the unit. If not, reinforce the place with beams, etc. and install the suspension bolts.If the strength of the place for installation is not sufficient, the place resonates to the vibration of the unit and abnormal noise may be transmitted.

Be sure to provide a service space and an inspection hole for inspection of air filter, heat exchanger element and fan. HRV units require one inspection hole.

Some local regulations may not allow the use of bellows in view of the safety for fire prevention. Before using the bellows, contact administrative agencies or fire department in your district. Note that bellows are not allowed in Tokyo in accordance with the Fire Prevention Act of Tokyo.

When exhausting air into centralized duct (vertical hole), the Building Standards Act requires that the duct must be capable of preventing fire from expanding through the duct should a fire break out.

When a riser duct of steel plate of 2 m long is installed

When a smoke back flow prevention damper is installed

Caution• Installing a 2 m exhaust duct in a centralized duct involves

difficulty in construction and maintenance, and is not practised generally. In actual installation, the approved smoke back flow prevention damper is used, Use Daikin's optional smoke back flow prevention damper.

Air filter cleans the air and prevents clogging of the element, and must be installed properly.

Ambient conditions for use : –15°C to 50°CDB at 80% RH or less

Outdoor air temperature condition When used below –15°C, indoor air temperature varies greatly from outdoor air temperature and frost may form on the heat exchanger element depending on conditions of temperature and humidity. Further, the frost formation may be frozen. The frozen frost melts during the day as the temperature rises but the heat exchanger efficiency drops before the frozen frost is melted.

In a place where the temperature exceeds 50°C, deformation of resin parts such as air filter and reduced life of motor and electric parts due to deteriorated insulation are considered.

Conditions:

1. Install the unit on a rigid and stable place. Refer to the specification and weight of the unit.

2. Install a service space and an inspection hole. Refer to the outline drawing for details.

3. Bellows may not be able to use depending on the local regulations. (In the case in Japan)

4. When exhausting air into the centralized duct (vertical hole), install a riser duct of steel plate of over two meters long inside the vertical hole or install an approved smoke back flow prevention damper. (In the case in Japan)

Fan

Cross sectional area :Less than 250 cm2

Steel plate of 0.8 mm thick or more

Rigid mounting

Fill mortar

Centralized duct(Vertical hole)

2 m

or

mor

e

(HC0065)

5. Air filters are provided on the air intake side and exhaust air side. Be sure to install these filters.

6. Confirm the using conditions of HRV units before installation.

As a countermeasure, preheating of the air on low temperature side is considered.

7. The precise available conditions are shown below.

Ambient temperature & humidity for HRV unit

–15 to 50°CDB 80% RH or less

Indoor / Outdoor air –15 to 43°CDBThe relative

humidity [% RH] is as described below

Fan

Cross sectional area :Less than 250 cm2

Steel plate of 0.8 mm thick or more

Smoke back flowprevention damper

Centralized duct(Vertical hole)

(HC0066)Inspection hole(450 · 450 or more)

58 VAM–GJ Series


1) Operation in highly humid areas (in the cooling mode)To prevent dew formation, use the unit under the conditions that the indoor discharge air is 95% RH or less on the psychrometiric chart.

Fig.1 shows the limit under normal indoor conditions.Fig.1 Conditions :

Temperature efficiency A = 72%Enthalpy efficiency B = 56% (In cooling) This conditions are at the minimum efficiency that are the severest to dew formation.

2) Operation in cold areas (in the heating mode)To prevent dew formation and freezing, use the unit under the conditions that the outdoor discharge air is 95% RH or less on the psychrometiric chart.

Note:If the outdoor discharge air exceeds 95% RH, please preheat the outdoor suction air before it goes through the heat exchanger.

Such operation may cause frost to form in the body and dirty ceiling may result.

Provide resonance preventive measures for the body suspension bolts.

Example

If abnormal noise is suspected generating from a spiral duct connection, change the duct to flexible duct. The above preventive measure is considered to eliminate the problem (resonance) but contact our service group and provide means to prevent vibration or necessary changes of the motor of the unit body.

Caution• When the outdoor air infiltrates into the ceiling and the

temperature and humidity in the ceiling become high, insulate the metal part of the unit.

Dry bulb temperature (˚CDB)A

bso

lute

hu

mid

ity

(kg

/ kg

)

Temperature efficiency A%

Entha

lpy e

fficien

cy

in co

oling

B%

Satu

ratio

n cu

rve

RA

SA

OA

95%

RH

<=

(HC0067)

20

40

50

60

70

80

90

100

30Outdoor air temperature (˚CDB)

Ou

tdo

or

air

rela

tive

hu

mid

ity

(% R

H)

40

Available

Notavailable

Indoor conditions

25˚C DB, 60% RH22˚C DB, 50% RH22˚C DB, 60% RH

(HC0068)

Dry bulb temperature (˚CDB)

Ab

solu

te h

um

idit

y (k

g /

kg)

Temperature efficiency A%

(In heating)

Enthalpy efficiency

in heating C% Satu

ratio

n cu

rve

RA

OA EA

95%

RH

<=

(HC0069)

8. Do not use HRV units where the air contains noxious gas and corrosive components of materials such as acid, alkali, organic solvent, carbon black and paint. Also, do not use in a place where damage from sea wind and hot spring prevail or where air containing odor is recovered for supply to other locations.

9. Do not operate HRV units in [Bypass] ventilation mode when the indoor is heated during winter.

10. When a unit is installed on the ceiling using short suspension bolts, abnormal noise may be generated due to resonance with the ceiling.

Vibrationisolating rubber

Ceiling

HRV unitsbody

(HC0070)

MotorMotor

Motor mountVibration isolating rubber

(HC0071)

VAM–GJ Series 59


4.5 Standard drawing for installation

VAM150GJVE

VAM250GJVE

3D051148

Unit (mm)

3D051150

Unit (mm)

60 VAM–GJ Series


VAM350GJVE

VAM500GJVE

3D051152

Unit (mm)

3D051154

Unit (mm)

VAM–GJ Series 61


VAM650GJVE

VAM800GJVE

3D051155

Unit (mm)

3D051156

Unit (mm)

62 VAM–GJ Series


VAM1000GJVE

VAM1500GJVE

3D051160

Unit (mm)

3D051163

Unit (mm)

VAM–GJ Series 63


VAM2000GJVE

3D051164

Unit (mm)

64 VAM–GJ Series


4.6 Cautions in installation

WARNING• Ask your dealer or qualified personnel to carry out

installation work. Do not try to install the machine yourself.Improper installation may result in water leakage, electric shocks or fire.

• Installation should be done following the installation manual and no changes should be made to the unit.Incorrect installation may cause leaking, electric shocks, or fire. Injuries may result if the HRV falls.

• Install the unit on a foundation strong enough to withstand the weight of the unit.A foundation of insufficient strength may result in the equipment falling and causing injuries.

• Do not allow exhaust air to enter the outside air intake vent.This may cause the air of the room to become contaminated, harming the health.

• Locate the outside air intake vent so that it does not take in exhaust air which contains combustion air, etc.Incorrect installation may cause a loss of oxygen in the room, leading to serious accidents.

• Make sure that a separate power supply circuit is provided for this unit and that all electrical work is carried out by qualified personnel according to local laws and regulations and this installation manual.An insufficient power supply capacity or improper electrical construction may lead to electric shocks or fire.Insufficient power supply capacity or incorrect wiring may cause electrical shocks or fire.

• Use only accessories and manufacturer-specified parts when installing.The use of parts other than specified may cause drop of the unit, water leakage, electric shock, fire or other accidents.

• Make sure that all wiring is secured, the specified wires are used, and no external forces act on the terminal connections or wires.Improper connections or installation may result in overheating or fire.

• When wiring the power supply and connecting the remote controller wiring and transmission wiring, position the wires so that the electric parts box lid can be securely fastened.Improper positioning of the electric parts box lid may result in electric shocks, fire or the terminals overheating.

• When installing the unit in a small room, take measures against to keep refrigerant concentration from exceeding allowable safety limits in the event of refrigerant leakage. Contact the place of purchase for more information.Excessive refrigerant in a closed ambient can lead to oxygen deficiency.

• Be sure to establish an earth.Do not earth the unit to a utility pipe, arrester, or telephone earth.Incomplete earth may cause electrical shock, or fire.A high surge current from lightning or other sources may cause damage to the air conditioner.

• Be sure to install an earth leakage breaker.Failure to install an earth leakage breaker may result in electric shocks, or fire.

CAUTION• Install the indoor and outdoor units, power supply wiring

and connecting wires at least 1 meter away from

televisions or radios in order to prevent image interference or noise.(Depending on the radio waves, a distance of 1 meter may not be sufficient enough to eliminate the noise.)

• While following the instructions in this installation manual, install drain piping in order to ensure proper drainage and insulate piping in order to prevent condensation.Improper drain piping may result in water leakage and property damage.

• Install the two outdoor ducts with down slope to prevent rainwater from entering the unit.If this is not done completely, water may enter the building, may damage furniture, and cause electric shocks and fire.

• Insulate the two outdoor ducts and the supply air duct to prevent condensation.If this is not done completely, water may enter the building, may damage furniture, etc.

• Insulate the duct and the wall electrically when a metal duct is to be penetrated through the metal lattice and wire lattice or metal lining of a wooden structure wall.Improper duct work may cause electric shocks or fire.

• Do not install the unit in the following locations :a. Place subjected to high temperature or direct flame.

May result in fire or overheating.b. Where a mineral oil mist or an oil spray or vapor is

produced, for example in a kitchen.This may cause fire.

c. Place such as machinery plant and chemical plant where gas, which contains noxious gas or corrosive components of materials such as acid, alkali organic solvent and paint, is generated. Place where combustible gas leakage is likely.Copper piping and brazed joints may corrode, causing refrigerant to leak or poisoning and fire due to leaked gas.

d. Place such as bathroom subjected to moisture.Electric leak or electric shocks and other failure can be caused.

e. Near machinery emitting electromagnetic waves.Electromagnetic waves may disturb the operation of the control system and result in a malfunction of the equipment.

• Make sure the temperature and humidity near the unit and the air suction/discharge air grille is within limit dictated by the usage conditions.Do not install in refrigerated truck or other locations with low temperatures or near heated pools.This may cause fires or short circuits.

• Make sure that a snow protection measure is taken. If no protection snow may enter through the outdoor ducts, and cause damaging furniture and electric shock and fire.

• In areas where insects are easily attracted to a light, such as where there is a window or light near a ventilation opening, extremely small insects can sometimes infiltrate the room by passing through the ventilation opening.Since totally preventing against infiltration by extremely small insects is difficult, it is important to consider a serious solution like a filter box (field supply) during the design process to protect against insect infiltration.

3P034928-5J

VAM–GJ Series 65


4.7 Installation

4.7.1 Installation of HRV unitsPass hanger bracket over the bolts and secure with commercially available washers and nuts.(When installing the main unit, make sure there are no foreign objects (plastic, paper, etc.) inside the fan housing by looking inside through the duct hole before connecting the duct.)• When reversing the hanger brackets in order to install the

unit upside down, be sure to secure them with the removed screws.

• Attach the indoor (SA, RA) and outdoor (EA, OA) ducts by referring to the duct diagram on the name plate.

<VAM150GJVE, VAM250GJVE, VAM350GJVE, VAM500GJVE, VAM650GJVE, VAM800GJVE, VAM1000GJVE>

<VAM1500GJVE, VAM2000GJVE>

1. Hanger bracket2. Nut3. Washer4. Double nuts

3P034928-5J

4.8 Duct work

4.8.1 Caution• Do not install ducts as shown below.

1. To prevent air leakage, wind aluminum tape round the section after the duct connecting flange and the duct are connected.

2. Install the opening of the indoor air intake as far as from the opening of the exhaust suction.

3. Use the duct applicable to the model of unit used (Refer to the outline drawing.)

4. Install the two outdoor ducts with down slope (slope of 1 / 30 or more) to prevent entry of rain water. Also, provide insulation for both ducts to prevent dew formation. (Material : Glass wool of 25 mm thick)

5. If the level of temperature and humidity inside the ceiling is always install a ventilation equipment inside the ceiling.

6. Insulate the duct and the wall electrically when a metal duct is to be penetrated through the metal lattice and wire lattice or metal lining of a wooden structure wall.

4.8.2 The part of external wall through

1. Hole diameterDuct dia. + 50 or 75(I.D. depends on the core drill specification)<e.g.>

2. Drilling the holeIdeally it is better to grade in the same procedure as refrigerant piping.

In the case of a square ductGrade a wood frame of a duct stay.

In the case of a round ductDrill a hole horizontally because the hole cannot be made with the tool graded.

3. Protecting a wind and rain from entering Most of a space between the duct and the external wall is protected by mortar. Coated wall is filled with a caulking material. (See fig. 1)

1

2

3

4

1

2

3

4

(1) Extreme bend (2) Multi bend

Do not bent the duct over 90°.

(3) Reduce the diameter of the duct to be connected.

Do not reduce the duct diameter halfway.

(HC0077)

(HC0078)

Duct diameter Hole diameterφ 100 + 50 φ 150φ 150 + 50 φ 200

(4) a bend right next to the outlet

(HC0079)

Body

Insulator

(Field supply)

Slope: Over 1 / 30

Duct connecting flange Aluminum tape

(Field supply)

(HC0080)

66 VAM–GJ Series


Image picture

4. How about the building which has already been built? Same as the newly-built building.• Only hole diameter 100 is instructed in a drawing by a

drawing company, so a detailed work is executed by the judgement of an installation company.

φ 10

0φ

150

A flexible duct is not used in the through part of the external wall.

Indoor Outdoor

Mortar

1 / 100 – 1 / 50 Hood

Insulation material Caulking material (Sealing material)

Spiral duct

External wall

(HC0081)

Fig. 1

VAM–GJ Series 67


4.9 Electrical wiring procedure

Before obtaining access to terminal devices, all power supply circuits must be interrupted.

Connection of Wiring• Connect the wires in accordance with the diagram of each system.• All wiring must be performed by an authorized electrician.• All field supplied parts and materials and electric works must conform to local codes.• Use copper wire only.

Connection of wiring• A circuit breaker capable of shutting down supply to the entire system must be installed.• A single switch can be used to supply power to units on the same system. However, branch switches and branch circuit

breakers must be selected carefully.• Fit the power supply wiring of each unit with a switch and fuse as shown in the drawing.• Be sure to give the electric grounding (earth) connection.

Complete System Example

HRV

HRV

Power supply wiring

Transmission wiringPower supply

Main switch

VRV outdoor unit

VRV Indoor unit

VRV Indoor unit

Remote controller

Switch

Fuse

(HC0082)

Model

VAM150GJ

VAM250GJ

VAM350GJ

VAM500GJ

VAM650GJ

VAM800GJ

VAM1000GJ

VAM1500GJ

VAM2000GJ

Power supply wiring

Field supplied fuses

15A

Transmission wiring

Wire

Shield wire (2 wire)

Sise

0.75 – 1.25 mm2

Wire

H05VV-U3G

Size

Wire size must comply with local codes.

Type

VE

(HC0083)

68 VAM–GJ Series


Wiring Example

• All transmission wiring except for the remote controller wires is polarized and must match the terminal symbol. • Use screened wire in transmission wiring. Ground the shield of the shield wire to “ ”, at the grounding screw, with the C-cup

washer.• Sheathed wire materials may be used for transmission wiring, but they are not suitable for EMC (Electromagnetic Compatibility)

(European Directive).• When using sheathed wire, electromagnetic compatibility must conform to Japanese standards stipulated in the Electric

Appliance Regulatory Act. Transmission wiring need not be grounded when using sheathed wire.

PRECAUTIONS1. Do not connect wires of different gauge to the same power

supply terminal. Looseness in the connection may cause overheating. When connecting more than one wire to the power supply wiring, use a 2 mm2 (φ 1.6) gauge wire.

2. Keep total current of crossover wiring between indoor units less than 12 A. When using two power wiring of gauge greater than 2 mm2 (φ 1.6), branch the line outside the terminal board of the unit in accordance with electrical equipment standards. The branch must be sheathed so as to provide an equal or greater degree of insulation as the power supply wiring itself.

3. Do not connect wires of different gauge to the same grounding terminal. Looseness in the connection may deteriorate protection.

4. Keep the power supply wiring distant from other wires to prevent noise.

5. For remote controller wiring, refer to the “INSTALLATION MANUAL OF REMOTE CONTROLLER”.

1 2 1 2IN OUT P1 P2 F1 F2 T1 T2 L N

C-cup washer (attached)

View seen from VRV

Terminal board for transmission Wiring

Terminal board for power supply

Grounding terminal

Unit wiring

Remote controller wiring

Clamp material (attached)

Power supply wiring

Field supplied wire

Earth terminal (attached)

Ground the shield part of shielded wire.

Earth screw (attached)

Shield part

(HC0084)

Same gauge wires Different gauge wires

VRVHRV

P1

P1

P1

P2 P2

P2

Remote controller (HRV)

L N

Power supply1 ~ 50Hz220 - 240V

Indoor unit

Outdoor unit / BS unit

Switch box

1 2Out

VRV HRV

L N

Power supply1 ~ 50Hz220 - 240V

transmissionwiring

Remote controller (VRV)

Indoor unit

L N 1 12 2 P1 P2 F1 F1 T1 T1 P2 P1 F1 F2 J2 JC L N

Following items are figured as shown below

: transmission wiring

J1

(HC0085)

VAM–GJ Series 69


4.9.1 Opening the control box

Before opening the cover, be sure to turn off the power switches of the main units and other devices connected with the main units.• Remove the screw securing the cover and open the control box.• Secure the power cord control wires with the clamp, as shown above.

4.9.2 How to install the optional adapter circuit board1. Open the electrical compartment cover by following the procedure described in the “Opening the control box” section.2. Remove the securing screw, and install the adapter circuit board.3. After the wires are connected, fasten the electrical compartment cover. (For detail, refer to 6. Optional accessories.)

4.9.3 Wiring system of centralized transmission control wiring Total length of wiring should not exceed 1000 m.

Cautions:The bus type wiring and the star type wiring cannot be used at the same time.Do not connect more than 3 wires to the same terminal.If necessary, use a relay terminal (field supply).

In this technical manual, all the schematic drawings is shown by the series wiring, which do not require relay terminals.

VAM150GJVE, VAM250GJVE, VAM350GJVEVAM500GJVE, VAM650GJVE, VAM800GJVE, VAM1000GJVE

VAM1500GJVE, VAM2000GJVE

Series wiring Bus type wiring Star type wiring

(Can be connected up to 8 branches) (Can be connected up to 8 branches)

Grounding terminal

Transmission wiringterminal board

Printed circuit board

Electric componentmounting base

Terminal board

Electrical compartment mounting base

Securing screw

Electricalcompartment cover( )

(HC0088)

Transmission wiringterminal board

Printed circuit board

Electric componentmounting base

Terminal board

securuing screw

Electrical compartment cover

slide

(HC0089)

(HC0090) (HC0091) (HC0092)

70 VAM–GJ Series


4.10 Initial setting

4.10.1 Initial setting by the remote controller for indoor unit

Purpose

• Interlocked operation

• When only the centralized controller is used.

Controller

• BRC1C62

• BRC301B61

Operating procedure for initial setting

The following describes the operating

procedure and settings.

The following describes the operating

procedure and settings.

Press the INSPECTION button for more than

four seconds to enter the local setting mode

when the unit is in the normal mode.

Use the VENTILATION MODE, AIR FLOW

RATE button to select the desired “mode

number”. (The code display will blink.)

To make setting for individual unit under group

control (when mode no. 27, 28 or 29 is

selected), press TIMER SETTING ON / OFF

button to select the “unit No.” for which the

settings are to be made. (This process is not

necessary when settings are made collectively

for the group.)

Press the top section of the TIMER button to

select the “setting switch No.”.

Press the lower section of the TIMER button to

select the “setting position No.”.

Press the PROGRAM / CANCEL button once

to enter the settings. (The code display will

stop blinking and light up.)

Press the INSPECTION button to return to

normal mode.

Note:When you make the plural setting to one (or one group) indoor unit, the item to of the above setting procedure should be repeated and it should be returned to the “normal mode” by the procedure of item at last.

BRC301B61

HRHRV

UNIT No.

FRESH UP

CODE

GROUP

A

Ahr

hr

SETTING



1 7

4

3

3

2

5

4 5

6

1

4

3

2

5

6

7

2 67

(HC0093)

VAM–GJ Series 71


4.10.2 Setting procedure of group no. for centralized controllerThe following shows the procedure how to set the group number for the centralized controller by the remote controller for indoor unit.

Purpose

When you use the central

remote controller and the

unified ON / OFF controller, you

have to set the each unit

connected to the central

transmission line.

<Example>

Controller

• Remote controller for indoor unit BRC1C62

• BRC301B61

Operating procedure

The unit in [ ] does not require the group no.

setting for the centralized controller

connected to the central transmission line.

(Auto-address setting)

Press the INSPECTION button for more than

four seconds.

Use the VENTILATION MODE, AIR FLOW

RATE to select the mode no. “00”.

Use the top or lower section of the TIMER

button to set the group no. for the centralized

controller.

(When you use the unified ON / OFF

controller, it displays only the group no.

selected by the setting switch for zone

control.)

Press the PROGRAM / CANCEL button to

enter the setting group no. shown on the

display.

Press INSPECTION button to return to normal

mode.

Note:Do not duplicate the group number.Be sure to supply the power to the remote controller side. (It cannot be set without the power supply.)

Central remote controlleror

ON / OFF controller

No necessary


BRC301B61

HRV

UNIT No.

FRESH UP

CODE

GROUP

A

Ahr

hr

SETTING

[1-00] [1-01]

[1-03]

[1-02]

1

4

3

2

5

1 7

4

3

3

2

5

4 5

6

(HC0094)

72 VAM–GJ Series


4.10.3 Initial setting for “Central zone control”When HRV unit is connected to the central transmission line (terminal connector no. (F1) and (F2)), it is necessary to make a initial setting of “collective zone interlock” by the remote controller for indoor unit. (Factory set “OFF”.) Make initial setting as follows.

Combination with central controllerCentral controller : Possible ×: Impossible

CautionsWhen you make an initial setting “ON”, the interlocked operation has a priority, and it is impossible to operate / stop HRV unit independently by the central remote controller or the unified ON / OFF controller. If there is no indoor unit for interlocked operation in the same zone, make an initial setting “OFF”.When you make an initial setting “OFF”, the independent operation of HRV unit has a priority, and the interlocked operation is not possible.When the HRV unit is operated independently by the central controller, the HRV unit will not operate until the preset time elapses if the precool / preheat time setting is set. Therefore, please do not set the precool / preheat time setting in normal operation.

Example of system

Central controller Operation · functionInitial setting for

“central zone control”

Multi-function centralized controller

Unified ON / OFF controller

Schedule timer Adapter PCB for remote control


(Automatic selection)

Independent operation / stop

(By central controller)

1 unit — — —× ON

× × OFF

1 unit 1 – 4 units — —× ON

× OFF

1 unit 1 unit —× ON

× × OFF

1 unit 1 – 4 units 1 unit —× ON

× OFF

— 1 – 4 units — —It is impossible to operate. ON

× OFF

— — 1 unit —It is impossible to operate. ON

× OFF

— — 1 unit —× ON

×× (Only collective

operation)OFF

— — — 1 unit× ON

×× (Only collective

operation)OFF

5

21

34


Unified ON / OFF Controller

Zone 1

Zone 2 Zone 3


Collective zone interlock setting “OFF”




Collective zone interlock setting “ON” The unit

The operation and display by the central controller will be basically the same as those on the remote controller for indoor unit. However, the HRV unit cannot be operated independently by the central controller.

The unitThe operation of HRV unit is interlocked with indoor units in the same zone, and the HRV unit can also be operated independently by the central remote controller. However, it can not be operated independently by the unified ON / OFF controller.

The unitWhen the central remote controller is used, each unit will be one zone, unless you set the zone for plural units.

1

2

5

(HC0095)

VAM–GJ Series 73

Operation ED71-613

5. Operation

5.1 Method of operation

5.1.1 Operation with the remote control exclusively for Air conditioning operation HRV units. (BRC301B61)

For non-independent systems, starting / stopping operation and timer operation may not be possible.Use the air conditioner remote control or the Centralized controller in such cases.

Operation lampThis pilot lamp (red) light up while the unit is in Operation.

Operation / Stop buttonWhen pushed once, the unit starts operating.When pushed twice, the unit stops.

Air flow rate changeover buttonAir flow rate can be changed over to “ ” [Low] mode or “ ” [High] mode,“ FRESH UP” [Low FRESH UP] mode,“ FRESH UP” [High FRESH UP] mode.For “FRESH UP” operationWhen this indication does not show: The volume of outdoor air supplied into the room and that of the room air exhausted outdoors is equivalent.For “FRESH UP” operation,• If it is set to “Fresh up air supply” : The volume of

outdoor air supplied into the room is larger than that of room air exhausted outdoors. (This operation prevents the odor and moisture from kitchens and toilets from flowing into the rooms.)

• If it is set to “Fresh up air exhaust”: The volume of room air exhausted outdoors is larger than that of outdoor air supplied into the room.(This operation prevents the hospital odor and floating bacteria from flowing out to the corridors.)

Ventilation mode changeover button“ ” (Automatic) mode............The temperature sensor of the unit automatically changes the ventilation of the unit in [Bypass] mode and [Heat Exchange] mode.“ ” (Heat Exchange) mode... In this mode, the air passes through the heat exchanger element to effect [Total Heat Exchanging] ventilation.“ ” (Bypass) mode ................ In this mode, the air does not pass through the heat exchanger element but by passes it to effect [Bypass] ventilation.

Indication of operation control method :When the operation of HRVs are interlocked with the air conditioners, this indication may be shown. While the indication is shown, the ON / OFF of HRVs cannot be operated by the HRV remote controller.

Indication of operation standby :It indicates the precooling / preheating operation. This unit is at stop and will start operation after the precooling / preheating operation is over. Precooling / preheating operation means the operation of HRVs is delayed during the startup operation of interlocked air conditioners such a before the office hours. During this period the cooling or heating load is reduced to bring the room temperature to the set temperature in a short time.

Indication of centralized control :When a remote controller for air conditioners or devices for centralized control are connected to the HRVs, this indication may show.During this indication appears on the display, the ON / OFF and timer operation may not be possible with the HRV remote controllers.

Indication of air filter cleaningWhen the indication “ ” appears on the display, clean the filter.

Filter signal reset button

Inspection buttonThis button is to be used only for service. It is not to be used normally.

How To Operate With Timer

Push the button “ ” and select either one of “ ” or “ ”.Each time the button is pushed, the indication changes as shown below.

Push the button “ ” and set the time.

Each time when “ ” is pushed, the time advances one hour.Each time when “ ” is pushed, the time goes back one hour.

Push the button “ ”.Then, the reservation is finished.Either “ ” or “ ” changes from flashing to lighting. After the reservation is finished, the remaining time is indicated in the display.For cancelling the timer operation, push the button “ ” once again.The indication disappears.

1

2

BRC301B61

A

A

FRESH UP

FRESH UP

HRV

TEST

FRESH UP

hr

hr

1 2

34

5

6

7

8

91013

1112

Remote conroller for HRVBRC301B61

(HC0098)

3

4A

5

6

7

8

9

10

11

“No indication”

“ ” “ ”

12

13

74 VAM–GJ Series

ED71-613 Operation

5.1.2 Operating the HRV unit using the remote controller of the VRV- system air conditioner

The HRV unit cannot be operated independently when the air conditioner is connected to the HRV unit via a duct. When using the HRV unit, set the air conditioner to “fan” mode on weak fan strength.

• Each time you press the operation selection button, the operation mode display will change as shown in the figure below.

Example 1: In case of the remote controller “BRC1C61” and as equivalent. Display changes as below.

3P034927-5J

5.1.3 Independent operation of the HRV unit using the Centralized controller (DCS302C(A)61) • After selecting the zone where the only the HRV unit operation is desired, press the operation mode selector and select “ ”

VENTILATION. The HRV unit can then be operated independently from the air conditioner.

• When the “FILTER” indication appears on the display, clean the filter of the HRV unit. (Refer to the section 3.)

NOTE) Current Ventilation mode can be visible and selected on the remote controller.

TEST

hr

TESTNOT

AVAILABLEhr

Operation mode display“Ventilation” is displayed.

Operation modeselector button


<Operation mode>

VRV:Cooling modeHRV:Heat exchange mode

VRV:Fan modeHRV:Heat exchange mode

VRV:StoppingHRV:Heat exchange mode

When air conditioner and HRVunit are not connected via duct

<Operation mode>

VRV:Cooling modeHRV:Heat exchange mode

VRV:Fan modeHRV:Heat exchange mode

When air conditioner and HRVunit are connected via duct

VAM–GJ Series 75

Operation ED71-613

5.1.4 External damper operation (field supply)• Explanation of Functions

Intake of outdoor air can be prevented when HRV is switched OFF if this damper is incorporated in the system.1. The total heat exchanger’s main unit print board supplies power for external damper.

• Essential Wiring1. Connect one end of the harness to the X15A on the print board and the other end to the harness leading to the damper via a

connector such as a closed connector.

With regard to closed connector, select one that suits wire diameter.• Essential Setting ChangesThe X15A output is at the default setting and is not in operation, so the output setting should be changed at the LCD of the remote controller.• Setting changes should be made in the following way.

Mode No. : 18 (group tie up) or 28 (per each unit)Setting switch No. : 3Setting position No. : 03

76 VAM–GJ Series

ED71-613 Operation

5.2 Cautions in use

WARNINGNever inspect or service the unit by yourself.Ask a qualified service person to perform this work.(The qualified service person)

WARNINGBefore obtaining access to terminal devices( ), all power supply circuit must be interrupted.

Electric shock may result. Before servicing the unit, always shut off power.

WARNINGAlways use the air filter.If the air filter is not used, heat exchanger elements will be clogged, possibly causing poor performance and subsequent failure.

WARNINGDo not change operations suddenly. It can result not only in malfunction but also failure of switches or relays in the body.

5.3 Maintenance(for a qualified service person only)

ONLY A QUALIFIED SERVICE PERSON IS ALLOWED TO PERFORM MAINTENANCE

WARNING• BEFORE OBTAINING ACCESS TO TERMINAL

DEVICES, ALL POWER SUPPLY CIRCUITS MUST BE INTERRUPTED.

• To clean the HRV, or maintenance be sure to stop operation, and turn the power switch off. It may cause electrical shock and it is very dangerous to touch the rotating part.

• Do not wash the HRV with water.Doing so may result in an electric shock.

CAUTION• Use gloves when cleaning.

Cleaning without gloves may cause injury.• Watch your step.

Use caution, as this requires working in high places.• Do not use benzene or thinner to clean the outside

surfaces of the air conditioner.This may cause cracks, discoloration, or machine trouble.

5.3.1 How to clean the air filterClean the air filter when the display shows “ ”(TIME TO CLEAN AIR FILTER).It will display that it will operate for a set amount of time.

CLEANING FREQUENCYAT LEAST ONCE EVERY YEARS(FOR GENERAL OFFICE USE)(CLEAN THE MORE FREQUENTLY IF NECESSARY.)• Increase the frequency of cleaning if the unit is installed in

a room where the air is etermely contaminated.• If the dirt becomes impossible to clean, change the air filter

(Air filter for exchange is optional).1. Detach the maintenance cover.

Go into ceiling through the inspection hatch, remove binding metal of maintenance cover and take it off.

VAM150GJVE - 1000GJVE

VAM1500GJVE · 2000GJVE

3P034927-5J

OFF(HC0227)

(HC0101)

(HC0102)

BRC301B61

HRHRV

UNIT No.

FRESH UP

CODE

GROUP

A

Ahr

hr

SETTING

Do not operatein the “Bypass” “ ” ventilation mode in winter!!

(HC0103)

!

VAM–GJ Series 77

Operation ED71-613

2. Detach the air filter.Take out from the heat exchange elements.



3. Clean the air filter.

Use vacuum cleaner A) or wash the air filter with water B).A) Using a vacuum cleanerB) Washing with water When the air filter is very dirty, use soft brush and neutral detergent.After cleaning, remove water and dry in the shade.

NOTE• Do not wash the air filter with hot water of more than 50°C,

as doing so may result in discoloration and/or deformation.• Do not expose the air filter to fire, as doing so may result in

burning.• Do not use gasoline, thinner, or other organic solvents.

This may cause discoloration or deformation.

4. Fix the air filter.If the air filter is washed, remove water completely and allow to dry for 20 to 30 minutes in the shade. When dried completely, install the air filter back in place.

NOTE• Be sure to install the air filter after servicing.

(Missing air filter causes clogged heat exchange element.)The air filter is an optional item and the replacement is available.

5. Install the maintenance cover.Refer to the section (5.3.1, 1).

∗ Consult your dealer if you want to change the time setting for when the filter sign goes on.

NOTE• Do not remove the air filter except when cleaning.

Breakdown may occur.

5.3.2 How to clean the heat exchange element

CLEANING FREQUENCYAT LEAST ONCE EVERY TWO YEARS(FOR GENERAL OFFICE USE)(CLEAN THE ELEMENT MORE FREQUENTLY IF NECESSARY.)

WARNING• Please exchange the heat exchange element if you find

that the knob of the heat exchange element is damaged or is deteriorated when cleaning it.There is falling danger.1. Detach the maintenance cover.

Refer to the section (5.3.1, 1).2. Detach the air filter.

Refer to the section (5.3.1, 2).3. Take out the heat exchange elements.

Pull out the air filter and then pull out the two heat exchanger elements.



3P034927-5J

For remote controllers which display the filter sign, turn on the power after maintenance, and press the filter sign reset button.

78 VAM–GJ Series

ED71-613 Operation

4. Use a vacuum cleaner to remove dust and foreign objects on the surface of the heat exchange element.

• Use the vacuum cleaner equipped with a brush on the tip of the suction nozzle.

• Lightly contact the brush on the surface of the heat exchange element when cleaning.(Do not crush the heat exchange element while cleaning.)

CAUTION (During Operation)• Do not clean touching strongly with a vacuum cleaner. This

may crush the mesh of the heat exchange elements.• Never wash the heat exchange element with water.• Have your dealer professionally clean the filter if it is very

dirty.5. Put the heat exchange element on the rail and insert it

securely in place.6. Install the air filter securely in place.

(Refer to the section (5.3.1, 4))7. Install the maintenance cover securely in place.

(Refer to the section (5.3.1, 5))

CAUTION• Always use the air filter.

If the air filter is not used, heat exchange elements will be clogged, possibly causing poor performance and subsequent failure.

3P034927-5J

5.4 Trouble shooting

5.4.1 If your unit does not operate properly, check the following items.

5.4.2 If the following occurs, consult the dealer where the unit was purchased.

List of malfunction codes of Remote controller of the HRV-system

In case of the malfunction with the code in white letters on the black background in the unit still operates.However, be sure to have it inspected and repaired and as soon as possible.If other than the above error codes are displayed, there is a possibility that the problem in question has occurred with a combined air conditioner or outdoor unit. See the operation manuals included with the air conditioners or outdoor units for details.

Conditions Causes Corrective actions

The unit does not operate at all.

Check if there is a power failure. After power has been restored, start operation again.

Check if the fuse has blown or breaker has worked.

Change the fuse or set the breaker.

Check if the indication of operation control method on remote controller (BRC301B61) is shown.

This is normal. Operate the unit using the air conditioner remote control or centralized controller.(Refer to the section (5.1.1))

Check if the indication of operation standby on remote controller (BRC301B61) is shown.

It indicates the precooling / preheating operation. This unit is at stop and will start operation after the precooling / preheating operation is over. (Refer to the section (5.1.1))

Amount of discharged air is small and the discharging sound is high.

Check if the air filter and heat exchange element are clogged.

Refer to “5.3 Maintenance.”

Amount of discharged air is large and so is the sound.

Check if the air filter and heat exchange element are installed.

Refer to “5.3 Maintenance.”

Operation lamp

Inspectionindicator

Unit No.Malfunction

codeDescription

On Off Blinking 64 Indoor air thermistor malfunction

On Off Blinking 65 Outdoor air thermistor malfunction

On Off Blinking 6A Dumper-related malfunction

Blinking Blinking Blinking 6A Dumper-related malfunction + thermistor malfunction

Blinking Blinking Blinking U5 Transmission error between the unit and remote controller

Off Blinking Off U5 Setting error of remote controller

Off Blinking Off U8 Transmission error between main remote controller and sub remote controller

Off Blinking Blinking UA Incorrect combination with indoor unit and remote controller.

On Blinking On UC Central control address over lapping

Blinking Blinking Blinking UE Transmission error between the unit and centralized controller

On Off Blinking 60 External protection device abnormal

Blinking Blinking Blinking 60 External protection device abnormal

VAM–GJ Series 79

Optional accessories ED71-613

6. Optional accessoriesOptional Accessories

Interlock adapter for VRV

Note:1. Installation box ** is necessary for each adapter marked *.2. Up to 2 adapters can be fixed for each installation box.3. Only one installation box can be installed for each indoor unit.4. Up to 2 installation boxes can be installed for each indoor unit.5. Installation box ** is necessary for second adapter.6. Installation box ** is necessary for each adapter.7. Flexible duct size *** is for the duct from HRV unit to branch duct (or air outlet).

C : 3D051623

VAM150GJVE VAM250GJVE VAM350GJVE VAM500GJVE VAM650GJVERemote Controller BRC301B61Wiring adapter for Humidifier KRP50–2Installation box for adapter PCB KRP50–2A90 (Mounted electric component assembly of HRV)Wiring adapter for electrical appendices KRP2A61 (For general) KRP2A51 (For EC Market)Central Remote Controller DCS302C(A)61 (For general) DCS302C(A)51 (For EC Market)Schedule Timer DST301B(A)61 (For general) DST301B(A)51 (For EC Market)Unified ON / OFF controller DCS301B(A)61 (For general) DCS301B(A)51 (For EC Market)

SilencerModel name — — — KDDM24B50 KDDM24B100Nominal pipe diameter (mm) — — — φ 200

Air Filter for replacement KAF241G25M KAF241G25M KAF241G50M KAF241G50M KAF241G65MHigh efficiency filter KAF242G25M KAF242G25M KAF242G50M KAF242G50M KAF242G65M

Flexible duct***

Model name (1m) K–FDS101C K–FDS151C K–FDS201CNominal pipe diameter (mm) φ 100 φ 150 φ 200 Model name (2m) K–FDS102C K–FDS152C K–FDS202CNominal pipe diameter (mm) φ 100 φ 150 φ 200

Heater control kit BRP4A50

VAM800GJVE VAM1000GJVE VAM1500GJVE VAM2000GJVERemote Controller BRC301B61Wiring adapter for Humidifier KRP50–2 Installation box for adapter PCB KRP50–2A90 (Mounted electric component assembly of HRV)Wiring adapter for electrical appendices KRP2A61 (For general) KRP2A51 (For EC Market)Central Remote Controller DCS302C(A)61 (For general) DCS302C(A)51 (For EC Market)Schedule Timer DST301B(A)61 (For general) DST301B(A)51 (For EC Market)Unified ON / OFF controller DCS301B(A)61 (For general) DCS301B(A)51 (For EC Market)

SilencerModel name KDDM24B100 KDDM24B100 × 2Nominal pipe diameter (mm) φ 250 φ 250

Air Filter for replacement KAF241G80M KAF241G100M KAF241G80M × 2 KAF241G100M × 2High efficiency filter KAF242G80M KAF242G100M KAF242G80M × 2 KAF242G100M × 2

Flexible duct***

Model name (1m) K–FDS251CNominal pipe diameter (mm) φ 250Model name (2m) K–FDS252CNominal pipe diameter (mm) φ 250

Duct adapterModel name — — YDFA25A1Nominal pipe diameter (mm) — — φ 250

Heater control kit BRP4A50

Indoor Unit FXCQ–M FXFQ–M FXKQ–M FXSQ–M FXMQ–M FXHQ–M FXAQ–M FXDQ–NFXLQ–MFXNQ–M

FXZQ–M

Adapter for wiring

KRP1B61* KRP1B59* KRP1B61 KRP1B3 — KRP1B56 KRP1B61 KRP1B57*

Installation box for adapter PCB **

KRP1B96Note 2, 3

KRP1D98Note 2, 3

—KRP4A91

Note 5—

KRP1C93Note 3

KRP4A93Note 2, 3

KRP1B101Note 4, 6

—KRP1B101Note 4, 6

80 VAM–GJ Series

ED71-613 Optional accessories

6.1 BRC301B61 : Remote controller

6.1.1 Remote controller mounting instructions

1. Remove the upper part of remote controller.Insert minus screwdriver into the slots in the lower part of remotecontroller (2 places), and remove the upper part of remote controller.

The PC board is mounted in the upper part of remotecontroller. Be careful not to damage the board with theminus screwdriver.

2. Fasten the remote controller.1 For exposed mounting, fasten

with the included wood screws (2).

2 For flush-mounting, fasten withthe included machine screws (2).

For the field supplied switch box, use optional accessories KJB111A or KJB211A.

NOTE

Choose the flattest place possible for the mounting surface. Be careful not to distort the shape of the lowerpart of remote controller by over-tightening the mounting screws.

Upper Part ofRemote Controller

Lower Part ofRemote Controller

Minus screwdriver

Insert the minusscrewdriver andtwist lightly to remove.

Wood Screws(φ3.5 × 16)

Switch Box

(Field supplied parts)

Machine Screws(M4 × 16)

(HC0111)2P034150

VAM–GJ Series 81


P2 P1 P2 P1

First, begin fittingfrom the clips at thebottom.

P C Board P C Board

HRV unit HRV unit

3. Wire the HRV (HEAT RECLAIM VENTILATION)unit.Connect the terminals on the upper part of the remotecontroller (P1, P2) and the terminals of the HRV unit (P1, P2).(P1 and P2 do not have polarity.)

NOTEWhen wiring, run the wiring away thepower supply wiring in order to avoidreceiving electric noise (external noise).

(Wired from the top)(Wired from the rear)

4. Reattach the upper part of remote controller.Be careful not to pinch the wiring when attaching.

NOTE

1. The switch box and wiring for connection are not included.2. Do not directly touch the PC board with your hand.

P C Board

Set one remote controller to "main," and the other to"sub."

NOTE• If controlling with one remote controller, be sure to

set it to "main."• Set the remote controller before turning power

supply on.

" " is displayed for about one minute when the power supply is turned on, and the remote controllercannot be operated in some cases.

Wiring Specifications

Wiring Type Shield Wire (2 wire) (See NOTE 3)

Size 0.75 – 1.25 mm2Lower partof remotecontroller

Upper Partof Remotecontroller

Ground the shieldedpart on the HRV unitside.

NOTE) 1. Peel the shield and sheath for the part that is topass through the inside of the remote controllercase, as shown in the figure below.

2. Treat the terminal for the wire to be connectedto the remote controller so the shielded partdoesn't touch any other part.

3. Sheathed wire may be used for transmissionwirings, but they do not comply with EMC(Electromagnetic Compatibility) (EuropeanDirective). When using sheathed wire. EMCmust conform to Japanese standards stipulatedin the Electric Appliance Regulatory Act. (Ifusing a sheathed wire, the grounding shown inthe figure on the left is unnecessary.)

Peel the shieldand sheath.

When controlling one HRV unit with two remote controllers

Change the MAIN/SUB changeover switch setting as described below.

(HC0112) 2P034150

S SSM

SM

Sub RemoteController

Main RemoteController(Factory Set)

Notch the part for thewiring to pass throughwith nippers, etc.

82 VAM–GJ Series


6.2 KRP50-2 : Wiring adaptor for remote contact / HumidifierKRP50-2A90 : Installation box for adaptor PCB

1. Components

2. Installation guide1. The KRP50-2 can be connected to HRV units as follows to

send the operation signal (pilot lamp, etc.) to remote locations.

2. KRP50-2 can also be connected to SkyAir indoor unit for the interlocked operation with HRV units. Or to be connected and used for the adaptor for outside air preheater.

1. KRP50-2 PCB (×1)2. PCB catches

(4 large, 4 small)

Tie wrap.....(×1) Manual.....(×1)

Electric wiring is as follows.

• For Humidifier

(HC0113)

(16) (5)

Either large or small catchesare used, depending on the model

(HC0114)

123

L

Pilot lamp (Operation display)

Power supply (1 φ 220 ∼ 240 V)

KRP50-2

X9AX10A

X11AJ1J2 F1F2

P1P2

P1P2

JCSS13P connector

2P connector

(HC0253-1)

HRV unit


1A

YC

Y2

B2

3

Power supply φ 1 100 V or 200 V

KRP50-2

SV

Float switch

HumidifierHumidity Controller

(Field supplied)

X9AX10A

X11AJ1J2 F1F2

P1P2

P1P2

JCSS13P connector

2P connector

HRV unit


(HC0115-1)

C o m p o n e n t s

4P055444

VAM–GJ Series 83


6.3 KRP2A51, KRP2A52 : Wiring adaptor for electrical appendicesKRP2A61, KRP2A62 : Wiring adaptor for electrical appendices

Accessories Check the following accessories are included in the kit beforethe installation.

The kit type (KRP2A61 • 51 type, KRP2A62 • 52 type) variesaccording to air conditioner model.

The installation box for adaptor PCB are required with thefollowing air conditioner models.

The KRP2A61 • 62 • 51 • 52 enables operation by remote control (ON/OFFcontrol, temperature setting, operation display, error display). With it, the followingsystem can be built. Note however that the adaptor cannot be used with otheroptional controllers for centralized control.1. Zone control

(Unified control of a max. 64 groups of a max. 16 indoor units each.But, the max. of indoor units is 128.)

NOTES

Wiring Adaptor for ElectricalAppendices (1)

PCB support

Clamp

Installation Manual

× 4

× 3

× 1× 1

1 General description of system

This system requires the following parts. Wiring Adaptor for Electrical Appendices (1)

... KRP2A61(62) or KRP2A51(52) Remote controller switches (For control)

... BRC1A61 • 62 • 51 • 52BRC2C(A)51BRC3A61

(Ex.) Zone control for 8 FXCQ63MVE units (control groups of 4, 3 and 1)KRP2A61 × 1 kitBRC1A61 × 3 kits

Per group

(1 set required for each group.)

(HC0116)C : 1PA63641G

KRP2A51 (For Europe)KRP2A52 (For Europe)KRP2A61 (For General)KRP2A62 (For General)

FXC(Q), FXYCP · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · KRP1B96FXF(Q) · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · KRP1D98FXH(Q), FXYHP · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · KRP1C93FXA(Q) · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · KRP4A93FXZQ, FXD(Q) · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · KRP1B101FXS(Q) · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · KRP4A91

84 VAM–GJ Series


NOTES

Individual indoor units connected to the centralized line cannot be displayedindividually.

To host computermonitor panel etc.

Remote controller

Indoor unit

Max. 16 units

Max. 16 units

Max. 64 groups

To outdoor unit

2 Names of parts and functions

1PA63641G

VAM–GJ Series 85


⟨⟨Ceiling Mounted Cassette Corner Type⟩⟩

C : 1PA63641G

FXK(Q)FXYKP

FXC(Q)FXYCP

⟨⟨Ceiling Mounted Cassette Type (Double-Flow)⟩⟩

⟨⟨Ceiling Mounted Duct Type⟩⟩

⟨⟨Ceiling Mounted Cassette Type (Multi-Flow)⟩⟩ ⟨⟨Ceiling Mounted Cassette Type (Multi-Flow) 600×600⟩⟩

(KRP2A62)

FXF(Q) FXZQ

3 Installation

FXM(Q)40~125FXYMP40~125

FXM(Q)200 · 250FXYMP200 · 250

86 VAM–GJ Series


⟨⟨Ceiling Mounted Built-In Type⟩⟩⟨⟨Ceiling Mounted Built-In Type (Rear Suction)⟩⟩

C : 1PA63641G

⟨⟨Ceiling Suspended Type⟩⟩

⟨⟨Wall Mounted Type⟩⟩ ⟨⟨Wall Mounted Type⟩⟩

⟨⟨Floor Standing Type⟩⟩ ⟨⟨Slim Ceiling Mounted Duct Type⟩⟩

FXS(Q)FXYSPFXYB

Note : Installation box is necessary for second adaptor (FXS (Q)) .

FXH(Q)FXYHP

FXL(Q), FXYLPFXN(Q), FXYLMP

FXD(Q)

KRP2A61

FXA(Q) FXYA

VAM–GJ Series 87


(HC0122)

4 Electrical wiring1 First, wire between the indoor and outdoor units, then to the separate power sources, and between

the indoor units and the remote controllers. Then, check wiring is correct. (If wanting group controlby remote controller check transmission wiring.) For details, see the installation manual of the indoorand outdoor units.

2 Next, wire between the wiring adaptor for electrical appendices (1) and the indoor units.For details, see Wiring to indoor units .

3 Finally, wire between external units such as the host computer monitor panel, and make thenecessary settings. For details, see Wiring to external units (host computer monitor panel) .

Note) It is not necessary to set address No. for centralized control. (Setting is automatic.)

Wiring to indoor units

1. For zone control

F1,F2P1,P2

R/C

Z

IX18A

PC board ass’y

Be sure to set to “ZONE”

AdaptorPCB

Remote controller

Max. 16 units

SS 3

DISPLAY OUTPUT

F1,F2P1,P2 F1,F2P1,P2

F1,F2P1,P2

R/C

R/C

Remote controller

Remote controllerMax. 64groups

Max. 16 units

F1,F2P1,P2

F1,F2P1,P2 F1,F2P1,P2

(Wiring specifications)Wiring .... Sheathed wire (2-wire)Gauge .... 0.75 ~ 1.25 mm2

Length .... Max. 1000 m

⟨ IMPORTANT ⟩Keep transmission wiring at least 50 mm away from powersupply wiring to avoid malfunctions.

(HC0123)1PA63642B

88 VAM–GJ Series


Wiring to external units (host computer monitor panel)

1. Remote control input (operation control)

Wire as described below. Wiring differs depending on whether using a voltage ornon-voltage input.

Set input changeover switch(SS1) to “VOLT”.(Factory set: VOLT)

NONVOLT

VOLT

CHANGE OVER

For voltage input

BC

B2

B1

G

Connect the control input to the common contact (non-polarity).

Use a 12-24 V external power supply.Each contact requires approximately 10 mA, therefore carefully select power supply capacity.

DC12-24V

Wiring adaptorKRP2A61 • 62 • 51 • 52

Input B

Input A

Use a micro-current contact of a minimum current load of 12 V, 1 mA or less.

Set input changeover switch(SS1) to “NON VOLT”.

For non-voltage inputNONVOLT

VOLT

CHANGE OVER

BC

B2

B1

G

DC12-24V


Input B

Input A

Use a micro-current contact of a minimum current load of 12 V, 1 mA or less.

(Wiring specifications)Wiring .... Sheathed wireGauge .... 0.18 ~ 1.25 mm2

Length .... Max. 150 m

( IMPORTANT )Keep transmission wiring at least 50 mm away from powersupply wiring to avoid malfunctions.

(HC0124)1PA63642B

VAM–GJ Series 89


1 When operating with only individual display function

Position

0

Function

Individual display(input ignored)

2. Setting control mode selector switch (RS1)

Using control mode selector switch (RS1), select the control mode as described below.

CO

NT

RO

L M

OD

E

RS1

Factory set:“0” position

When operating with constant input from A

⟨Note⟩ Input B is for forced-OFF. When ON, stop + remote controller is rejected, and input

A is ignored. When OFF, even if A is ON, the contents of when input A is ON arenot achieved. Input A must therefore be re-input.

When operating with momentary input from A(Use a momentary input of ON time 200 mili-sec or longer.)

Position

1

2

3

4

Function

Remote controllerrejection

Central priority

Stop by remotecontroller acceptable

Remote controlleracceptance / rejection

Contents when input A is ON

Operation (remote controlleris normally rejected)

Operation + remote controlleraccepted

Operation + stop by remotecontroller acceptable (Nooperation by the remotecontroller)

Remote controller accep-tance only (No operation bythe remote location)

Contents wheninput A is OFF

Stop + remotecontroller rejection

Position

5

6

Function

Remotecontrollerrejected

Lastcommandpriority

Contents of Input A

Stop for ON while operating,Operate for ON whilestopping

Stop for ON while operating,Operate for ON whilestopping (Remote controller isnormally accepted.)

Function of Input B

Input B will be forced stopfunction (When ON, stop +remote controller isrejected, input A is ignored.)

(HC0125)1PA63642B

2

3

90 VAM–GJ Series


For demand control from input B

Forced thermostat OFF commandForces indoor unit to operate the fan only.

Forced temperature shift commandThe indoor unit operates at 2˚C higher (cooling) or 2˚C lower (heating) than the settemperature.

⟨Notes⟩ In zone control, operation is displayed as long as one indoor unit is running. When

in the last command priority mode, some units are not operation while ON. In such case, even if input A is ON, the unit and all other units in the same zone

will stop.

When operating with dual momentary inputs from A and B(Use a momentary input of 200 mili-sec or longer.)

⟨Note⟩ Doing constant input A with position 7 to A, it will be forced OFF function

(input A is ignored.) Constant input cannot use for input B with position B.

Position

C

D

E

F

Function when input A is ON

Remote controller rejected(Same as position "5")

Last command priority(Same as position "6")

Function when input B is ON

Forced thermostat OFF command

Forced temperature shift command

Forced thermostat OFF command

Forced temperature shift command

Position

7

8

9

A

B

Function

Remote controllerrejection

Central priority

Stop by remotecontroller acceptable

Remote controlleracceptance / rejection

Last commandpriority

Contents when input A is ON

Operation (remote controlleris normally rejected)

Operation + remote controlleraccepted

Operation + stop by remotecontroller acceptable (Nooperation by the remotecontroller)

Remote controller accep-tance only (No operation bythe remote location)

Operation (remote controlleris normally accepted)

Contents wheninput A is OFF

Stop + remotecontroller rejection

Stop (remote control-ler normally ac-cepted)

4

(HC0126)1PA63642B

VAM–GJ Series 91


3. Temperature setting input

Temperature setting corresponds to resistance values in the range of 0 to 135Ω.Their relationship is as shown below.

⟨Note⟩ Wiring resistance included in above figures.

4. Cancelling display signals

Operation output terminals (W1 and W2) and malfunction output terminals (W3 andW4) are non-voltage constant contact output.(Allowed electric current per contact is between 10 mA and 3A.)

Temperaturesetting (˚C)

Resistance (Ω)

16

0.0

3.4

17

5.0

11.6

18

13.8

20.0

19

22.4

28.4

20

31.0

36.4

21

39.4

44.8

22

48.2

52.8

23

56.6

61.2

24

65.2

69.4

Temperaturesetting (˚C)

Resistance (Ω)

25

73.8

77.8

26

82.4

85.8

27

91.0

94.0

28

99.4

102.2

29

108.6

110.4

30

117.2

119.2

31

125.8

127.4

32

134.2

140.0

(Wiring specifications)Wiring …Sheathed wireGauge …1.25 – 2.00 mm2

Length …Max. 70 m

⟨IMPORTANT⟩Keep transmission wiring at least 50 mmaway from power supply wiring to avoidmalfunctions.

A

A+

-

I P

SS2

To enable temperature setting from both the adaptor and remote controller, set SS2 to “P”. (Factory set : P)P: Enables temperature setting by both the adaptor and remote controller. (Engages last command priority.)I: Enable temperature setting from the adaptor only. (The remote controller cannot be used to set temperature.)

NEVER apply voltage to terminals A+ or A– for any reason whatsoever.


W1

W2

W3

W4

Ry1

Ry2

Operation display

Error display


Power scurce

Normal operation output (Ry1)ON when the unit is operating normally.

Malfunction output (Ry2)ON when the unit stops because of malfunction or when a malfunction of transmission occurs between the adaptorand the indoor unit. ⟨ Note ⟩

If using a 220 ~ 240 V power supply, keep transmission wiring at least 50 mm away from incoming power supply wiring.

DC24VAC24VAC220 ~ 240V

– – – – – – – – –

– – – – – – – –

(HC0127)1PA63642B

92 VAM–GJ Series


6.4 KRP1B61 : Interlock adaptor of VRV

1. Names of parts

Display output is described by system in the below table.

Note

If rewiring F1 and F2 after running the system, turn ON power for 5 minutes, then turn it OFF and ON again.Changes to wiring can sometimes disable control from the wiring adaptor.

Output

System

Zone control

Both Ry1and Ry2

OFF

All zonesOFF

Ry1 only ON

At least one unit runningnormally, no malfunction

Ry2 only ON

Even 1 unit stopped due to malfunction or malfunctionof transmission between adaptor and indoor unit

(HC0128)1PA63642B

Adaptor

X 1

FXC(Q), FXYCP · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · KRP1B96FXS(Q) · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · KRP4A91

Accessories Check if the following accessories are included in the kit.

Notes • Kits vary according to applicable models.• A special adaptor fixing plate and box are required for the following models.

PC board support × 4Clamp × 3Installation manual × 1

(HC0129)

F1U F2U X1A

250 V, 5 A

X2A

Terminals for installing optionalaccessories

Terminals for operation display(HC0130)C : 2PA61563C

VAM–GJ Series 93


2. Electric Wiring• Refer to the WIRING DIAGRAM attached to the indoor unit before attempting to wire.

[Make sure wires to units do not pass over the PC board when wiring.]• Wire the adaptor to the indoor unit as shown below,

1. Fetching the operation display signal

2. If optional accessories are installed (auxiliary electric heater, humidifier)• Wire correctly in accordance with the attached installation manual.• Refer to the wiring diagram applied to the indoor unit when running electric wiring.

2PA61563C

X16AX2A

X1A

N

L

Blue

Red(HC0131)

Indoor unit PC board

• Attaching an hour meter • Fan ON display

HM

AC220 – 240 V

X2

X1Example :

Output is generated at the contact while thecompressor is running.

HM: Hour meter (Part to be procured in the field)

(HC0132)

RL

AC220 – 240 V

X4

X3Example :

Output is generated at the contact while the fan isrunning.

RL: Operation lamp (Part to be procured in the fieldy)

(HC0133)

94 VAM–GJ Series


3. Installation• Installation differs according to models as shown below.• Do not bundle low and high voltage wires together.• Bundle any access wires with the attached clamps so as to keep loose wirings off the indoor unit PC board.

C : 2PA61563C

Ceiling mounted built-in type Ceiling mounted cassette type

Ceiling mounted cassette type

(HC0134)

Indoor PC board

PCB support

Adaptor (KRP1B61)

Electric parts box

FXS–L (Corner model)

(HC0135)

Indoor PC board

PCB support

Adaptor (KRP1B61)

Electric parts box

FXK–L

(HC0136)

Indoor PC board

PCB support

Adaptor (KRP1B61)

Electric parts box

(Double-flow model)

Plate for adaptor PCB (option KRP1B96)

Installation screw

NOTE) A separate plate is needed to install the adaptor PCB.

FXC–L

VAM–GJ Series 95


C : 2PA61563C

Ceiling mounted duct type

Floor-standing type

Ceiling-mounted low silhouette duct type

FXM40~125L

(HC0137)

Indoor PC board

PCB support

Adaptor (KRP1B61)

Electric parts box

(HC0138)

FXM200·250L

Adaptor(KRP1B61)

PCB support

Indoor PC board

Electric parts box

(HC0139)

Indoor PC board

PCB support

Adaptor (KRP1B61)

Electric parts box

FXL–L, FXN–L

(HC0141)

Indoor PC board

PCB support

Adaptor (KRP1B61)

Electric parts box

*Plate for adaptor PCB (option KRP4A91)

* Necessary when installing two adapters.

FXYD–KA

96 VAM–GJ Series



VAM–GJ Series 97



Contents of kitPrior to installation check whether you have the complete kit of parts as shown below including the installation manual.

1. Name of parts

2. Electrical wiring• Refer to the wiring diagram of the indoor unit for its wiring connection.

(Make sure all the wiring to the unit should not go over the PC board.) • Connect the wiring to the indoor unit as shown below.

J : 2PA58148A

Adaptor PCB

1 set

CN1

* For ceiling suspended type

Plastic strap 3 piecesInstallation manual 1 piecePCB support * 4 pieces

(HC0217)

CN1

Electric heater connecting terminal

Display output terminal

(HC0225)

CN1

X2A

X16A

Indoor unit PC board Assy

(HC0211)

98 VAM–GJ Series


1. To detect the operation display signal

2. In case the electric heater is installed• Connect the wiring properly according to the installation manual included in the kit.• Refer to the wiring diagram of the indoor unit for its wiring connection.

3. Installation• Never bundle high and low voltage wiring together.• Be sure to bundle the excess wring with the attached plastic strap so as to keep the loose wiring off the indoor unit PC board.

JC : 2PA58148A

• Installation of the watt-hour meter • The fan display signal

HM

AC220 – 240 V

X2

X1Example :

Output signal to detect the operation of thecompressor.

HM: Hour meter (local supply)

(HC0132-1)

RL

AC220 – 240 V

X4

X3Example :

Output signal to detect the operation of the fan.

RL: Operation lamp (local supply)

(HC0133-1)

(V2443)

⟨⟨ Wall mounted type ⟩⟩

FXYA–K

⟨⟨Ceiling suspended type ⟩⟩

FXH–L

VAM–GJ Series 99


6.7 DCS302C(A)61 : Central remote controller

6.7.1 Applied model

6.7.2 System configurationSystem Outline

64 groups (zones) of indoor units can be controlled individually same as LCD Remote controller.

Max.64 groups (128 indoor units controllable)Max.128 groups (128 indoor units) are controllable by using 2 central remote controllers, which can control from 2 different places.Zone controlMalfunction code displayMax. wiring length 1,000 m (Total : 2,000 m)Combination with Unified ON / OFF controller, schedule timer and BMS systemAirflow volume and direction can be controlled individually for indoor units in each group operation. Ventilation volume and mode can be controlled for Heat Reclaim Ventilation (HRV).Up to 4 Operation / Stop pairs can be set per day by connecting a schedule timer.

Applied model Remark

VR

V s

yste

m

VRV II Series, VRV II-S series

VRV PLUS series

VRV Inverter “K” series

VRV Heat recovery system

SkyAir series Interface adaptor for SkyAir series is required for each indoor unit.

Room air-conditioner Wiring adaptor for other air-conditioning is required for each indoor unit.

Other air-conditioner Wiring adaptor for other air-conditioning is required for each indoor unit.

HRV unit

100 VAM–GJ Series


System Configuration (Group / Zone Control)Group control

The group means the indoor units connected by the same control wiring for remote controller (connected to terminal P1 and P2) and all the unit in group have “the same setting” and “the same operation”.The indoor units in the group are controlled by the remote controller for indoor unit.The number of indoor units in one group is up to 16 units.

Zone control

The zone means the indoor units connected by the same control wiring for central remote controller (connected to terminal F1 and F2) and all the unit in zone have “the same setting”.The zone control of the indoor unit is operated by the central remote controller.From 1 up to 64 zones can be controlled by the central remote controller.The number of groups you can set in one zone is from 1 up to 64 groups.Up to 16 units can be set in one group, and up to 64 groups (up to 128 units) can be connected.

VAM–GJ Series 101


System Configuration (Control by 2 central remote controllers)Up to 128 indoor units can be connected in one system.2 or 4 central remote controllers are required. It is possible to control the same unit from 2 locations.Up to 16 unified ON / OFF controllers can be connected. (8 controllers × 2 locations)One schedule timer can be connected.

Note:1. Electrical power should be supplied to each central remote controller. (Single phase 100~240V)2. When you control by 2 central remote controllers, be sure to set SS3 by the initial setting.

Note:The following setting cannot be made by the sub side. Be sure to set by the main side.

Operation code settingCombined operation between indoor unit and HRV unit.

102 VAM–GJ Series


Caution for wiring of BEV unit system with Central Remote ControllerWhen the BEV unit system, such as FXAQ / FXLQ-MHV1, FXUQ-MV1, and FUYP-BV1 are connected to the Central Remote Controller, the wiring becomes more complicated than that of general VRV system.Please take care as follows when wiring.

F1, F2[BEV]

F1, F2[BEV]

F1, F2[Interface ADP

for SkyAir]

[Wiring Example (1)]

[Wiring Example (2)]

[NG Example]

(NOTE)[Central R/C]

F1, F2[BEV]

F1, F2[BEV]

F1, F2[BEV]

F1, F2[BEV]

F1, F2[BEV]

F1, F2[BEV]

F1, F2[BEV]


for SkyAir]


for SkyAir]


for SkyAir]


for SkyAir]


for SkyAir]


for SkyAir]


for SkyAir]


for SkyAir]

[Indoor unit] [Indoor unit] [Indoor unit] [Indoor unit]

[Indoor unit] [Indoor unit]

(NOTES)1. When 3 or more wirings are branched from the

same terminal block, use a relaying terminal block of field supply.

2. In the Wiring Example (1) and (2), 3 wires are not connected on the same terminal block.

3. FXAQ-MH : Interface adapter for SkyAirseries is not necessary.

Interface adapter for SkyAir is required when connecting with optional controller for centralized control.

4. Address setting is required for only indoor units (ADP connection) when BEV units are controlled by Central Remote Controller.Therefore, BEV connected indoor units are controlled under the number of indoor units like standard indoor unit.(BEV is not counted as an indoor unit.)With respect to the limitation to the number of units connected, please count it as the number of indoor units.

[Central R/C]

[Central R/C]

[Indoor unit] [Indoor unit]

[Indoor unit]

∗

∗ ∗ ∗ ∗ ∗ ∗

∗ ∗ ∗

VAM–GJ Series 103


6.7.3 Specifications / dimensions

Specifications

Dimensions

DCS302C(A)61

DCS302C(A)61

Power supply voltage / frequency AC100~240V ±10% 50 / 60Hz

Power consumption Max. 8W

Setting data backup Non-volatile memory (Data preserved semi-permanently)

Effects of instantaneous power failure No effect for 20 mili-sec. or less

Forced OFF inputOperation on the local side cannot be carried out during forced OFF input.

No-voltage normal open contactMicro-current contact capable of handling 16VDC and approx. 10mA.Max. 150 m cable length

Power supply for schedule timer Power can be supplied to schedule timer. (Max. 1 unit)

Operating ambient temperature /humidity condition -5~40 °C, 95% RH or less (no condensation)

Size (width × height × depth) 180×120×64.5 mm exposed portion of front panel : 16 mm

Weight (Mass) Approx. 420 g

3D050340

Unit (mm)

104 VAM–GJ Series


6.7.4 Names and functions of operating partDisplay part DISPLAY (OPERATION MODE) Displays operating state.

Control Section

3P124623-8D

ALL OPTION

LNOTTAVAILABLE

SET

FRESH UPH HH

No..CODEUNIT No.

TESTINDIVIDUALLY

CF 12

DISPLAY(VENTILATION CLEANING DISPLAY)

This is displayed when a Ventiair total enthalpy heat exchanger unit or other such unit is connected.

DISPLAY (ZONE SETTING)

The lamp is lit while setting zones.

DISPLAY

The status displays indicates either batch functions or which zone or individual unit (or group) are being used.

DISPLAY (OPERATION MONITOR)

The lamp is lit while operation is being monitored.

OPERATION MONITOR

Each square displays the state corresponding to each group.

DISPLAY (MALFUNCTION CODE)

This displays (flashes) the content of errors when an error failure has occurred.In maintenance mode, it displays the latest error content.

"NOT AVAILABLE" DISPLAY(NO FUNCTION DISPLAY)

If a function is not available in the indoor unit even if the button is pressed, "NOT AVAILABLE" is may be displayed for a few seconds.

DISPLAY(TIME TO CLEAN)

It lights up when any individual unit (group) has reached the time for the filter or element to be cleaned.

OPERATION LAMP (RED)

Lit white any of the indoor units under control is in operation.

UNIFIED OPERATION BUTTON

Press to operate all indoor units.

UNIFIED STOP BUTTON

Press to stop all indoor units.

DISPLAY(COOLING/HEATING SELECTION PRIVILEGE NOT SHOWN)

For zones or individual units (groups) for which this is displayed, cooling and heating cannot be selected.

DISPLAY (UNDER HOSTCOMPUTER INTEGRATED CONTROL)

While this display is lit up, no settings can be made. It lights up when the upper central machines are present on the same air conditioning network.

DISPLAY (TIME NO.)

Displays the operation timer No. when used in conjunction with the schedule timer.

DISPLAY (OPERATION CODE AND UNIT NUMBER DISPLAY)

The method of operation (remote controller prohibited, central operation priority after-press operation priority, etc.) is displayed by the corresponding code.This displays the numbers of any indoor units which have stopped due to an error.

DISPLAY (TIME TO CLEAN AIR CLEANER ELEMENT/ TIME TO CLEAN AIR FILTER)

Displayed to notify the user it is time to clean the air filter or air cleaner element of the group displayed.

DISPLAY (REFRIGERANT SYSTEM DISPLAY)

This indication in the square is lit while the refrigerant system is being displayed.

DISPLAY (OPERATION MODE)

Displays operating state.

DISPLAY (PRESET TEMPERATURE)

Displays the preset temperature.DISPLAY (VENTILATION STRENGTH/SET FAN STRENGTH DISPLAY)

This displays the set fan strength.

DISPLAY (FAN DIRECTION SWING DISPLAY)

This displays whether the fan direction is fixed or set to swing.

DISPLAY(INSPECTION/TEST)

Pressing the maintenance/test run button(for service) displays this. This button should not normally be used.

“ ” “ ” “ ” “ ”

“ ”

“ ”

“ ”

“ ” “ ” ALL “ INDIVIDUALLYINDIVIDUALLY”

“ ”SET C

“ ”

“ ”TEST

“ ”

“ ” “ ” “ ” “ ” “ ” “ ”L H HHHHFRESH UPFRESH UP

“ ”

“ ”

“ ”

“ ”No.

“ ”CODEUNIT No.

“ ” “ ”

“ ” “ ” “ ” “ ” “ ” “ ” “ ”

ALL/INDIVIDUAL BUTTON

Pressing this button scrolls through the "all screen", "zone screen", and "individual screen".

VENTILATION MODE BUTTON

This is pressed to switch the ventilation mode of the total enthalpy heat exchanger.

VENTILATION STRENGTH ADJUSTMENT BUTTON

This button is pressed to switch the ventilation strength ("fresh up") of the total enthalpy heat exchanger.

INSPECTION/TEST RUN BUTTON (FOR SERVICE)

Pressing this button scrolls through "inspection", "test run", and "system display". This button is not normally used.

TIME NO. BUTTON

Selects time No. (Use in conjunction with the schedule timer only).

CONTROL MODE BUTTON

Selects control mode.

FILTER SIGN RESET BUTTON

This button is pressed to erase the "clean filter" display after cleaning or replacement.

SET BUTTON

Sets control mode and time No.

FAN STRENGTH ADJUSTMENT BUTTON

Pressing this button scrolls through "weak", "strong", and "fast".

ON/OFF BUTTON

Starts and stops ALL, ZONE, and INDIVIDUAL units.

FAN DIRECTION ADJUSTMENT BUTTON

This button is pressed when setting the fan direction to "fixed" or "swing".

OPERATION MODE SELECTOR BUTTON

This sets the operation mode. The dry setting cannot be done.

ARROW KEY BUTTON

This button is pressed when calling an individual indoor unit or a zone.

ZONE SETTING BUTTON

Zone registration mode can be turned on and off by pressing the start and stop buttons simultaneously for at least four seconds.

TEMPERATURE ADJUSTMENT BUTTON (ZONE NUMBER BUTTON)

This button is pressed when setting the temperature. Select the zone number if any zones have been registered.

VAM–GJ Series 105


6.7.5 Description of functions

Individual Screen, all Screen, Zone ScreenThis controller can perform operations in the individual screen, all screen, or zone screen.

Individual screenThe individual screen is used when performing group operations.All screenThe all screen is used when performing operations for all units at once.Zone screenThe zone screen is used when performing zone operations.

Basic functions

Zone control functions

Cool/Heat changeover and eligibility setting

Note: Refer to the next page for the selection of cool / heat mode (eligibility for cool / heat changeover).

Descriptions of outline

Individual / Zone controlUp to 64 groups (Max. 128 units and max. 16 units per group) of indoor units and HRV units can be controlled by individually or by zone.

Unified ON / OFFON / OFF can be set for each zone, and can be controlled simultaneously for entire system by push button or by contact signal from outside.

Malfunction code displayThe status of each group is always displayed, such as ON / OFF, error, etc. If the error occurs, it displays the contents of error by malfunction code through the self-diagnosis function.

Connection of unification adaptor for computerized control

By connecting the unification adaptor for computerized control (option), it can be linked with the central monitoring panel and etc. by contact signal, which enables you to operate ON / OFF simultaneously or monitor the operating status.

Remote control acceptance/rejectionIt is possible to restrict the function of local remote controller.(Only ON operation rejection, or ON / OFF operation rejection)

2 central controllersBy connecting two central remote controllers, the same air-conditioner can be controlled from 2 locations (By tenant or administration office.)


Zone controlThe zone function is a function to control one or more group of air-conditioner, and the operation setting such as ON / OFF etc. can be made by zone.

Up to 64 zonesUp to 64 zones (64 groups for each zone) can be set. However, the group setting spreading over the plural zone cannot be set.

Zone register

When the power is supplied first time, each group is registered in each respective zone. If you can simply register the several groups in the same zone by switch, so that you can have simultaneous operation of the units in that zone immediately. (The operation of temperature setting and etc. is also controlled by zone simultaneously.)

Zone settingBy adding the zone setting function (Zone “0”) from the central remote controller, you can set the same setting for all the zone registered by single operation.

ON / OFF control of zone

For example, if there are three groups in one room and if you register these three groups as one zone, you can operate these three groups simultaneously by single operation (ON / OFF, temperature setting etc.).You still can operate each group individually by local remote controller.

Maintaining zone settingEven if the power is turned off, the zone configurations set are maintained semi-permanently. (saved in non-volatile memory)

Cool / Heat changeover by zoneThe cool/heat changeover can be made by zone. However, it is required to have a master group for Cool / Heat changeover in that zone.

Batch operation The same setup is possible at one operation to all the groups registered on the "All" screen.

No local remote controllerEven if there is no local remote controller, you can still perform the same operation. There is no problem even if no remote controller is connected. (However, in this case, each one air-conditioner consists of one group.)

Combination with other controllersYou can also combine with a unified ON / OFF controller and a schedule timer. (Refer to the system configuration for details.)

Connection to central monitoring panelYou can also combine with an Interface for use in BAC net and a data station in order to connect to the central monitoring panel. A parallel interface can also be connected.


Possible controlThe operation mode of the outdoor unit can be changed by the local remote controller or by the central remote controller. (For test operation, change setting of cool / heat selector switch of the outdoor unit.)

Remote controller acceptance/rejectionYou can set the remote controller acceptance/rejection on the central remote controller by the local remote controller.

"NOT AVAILABLE" DISPLAY(NO FUNCTION DISPLAY)

If a function is not available in the indoor unit even if the button is pressed, "NOT AVAILABLE" is may be displayed for a few seconds.

106 VAM–GJ Series


Cool / heat Selection Eligibility Setting by Remote Controller for Indoor UnitThe outdoor unit of VRVII, VRV inverter "K" series, Heat Recovery series and VRV Plus series can freely be selected the operation mode (fan, dry, auto[Heat Recovery only], cooling or heating) by the remote controller for indoor unit. However, as shown below as example, for VRV inverter "K" series, you have to set the selection eligibility for fan, dry, cooling and heating operation on the one of the remote controller out of the indoor units connected to the outdoor unit. For Heat Recovery series and the function unit (for heat recovery), if 2 or more indoor units are connected to one BS unit, you have set the selection eligibility for fan, dry, auto, cooling and heating operation on the one of the remote controller out of the indoor units connected to the BS unit.(Only remote controller having the selection eligibility can change the operation mode.)

Setting method of the selection eligibility for cool/heat1. PreparationWhen turning on the power first time, "CHANGEOVER UNDER CONTROL" sign blinks.

When you set;

Description of operation and its function

∗ It is also possible to set the selection eligibility on the wireless remote controller. It does not possile to set the "Dry" by the Central Remote Controller.

Continue to push Operation switch for about 4 seconds. sign blinks on all the indoor units connected to the outdoor unit or BS unit.

Push Operation switch of the remote controller, which you want to set the selection eligibility. This completes the setting procedure. Cool / heat selection eligibility is set for that remote controller, and sign goes off. still blinks on all other remote controllers.

Push Operation switch of remote controller having the selection eligibility (The remote controller not displaying sign) several times to select the desired operation mode. [Fan], [Dry], [Auto] (only for Heat Recovery series), [Cooling] and [Heating] mode are selected each time you push the [Operation switch]. Operation mode of other remote controllers, which has no selection eligibility, is also switched automatically.

1

2

3

2. Selection Eligibility Setting

3. Operation mode changeover

(V1397)

(V1398)

Remote control having the selection eligibilityRemote controller having no sign.( )

Other remote controller

Remote controller having no sign.( )

Remote control having the selection eligibilityRemote controller having no sign.( )

Other remote controller

Remote controller having no sign.( )

Set to Cooling, Heating and Auto (only for Heat Recovery series);

Set to [Fan];

• Changes to the operation mode selected by the remote controller having the selection eligibility.

• However, you can still change to [Fan], or change from [cooling] to [dry].

• Can only be set to [Fan].

1

2

VAM–GJ Series 107


Control with Two Central Remote ControllersThe central remote control equipment is newly designed to "B" type, which has been added with a new control function for 2 central remote controllers. However, be sure that the relation between Main / Sub of the central remote controller is different from those of local remote controllers.

Note:Be sure that if timer No. is registered by the sub central remote controller, [Timer mode acceptance for local remote controller (mode no. 8,9,18, and 19)] for the same units set by the Main remote controller becomes meaningless (operates when time comes.).

<Explanation of the above figure>If you operate the central remote controller in the sequence of and , the indoor unit is set for cooling / temperature setting 24°C.However, the display of zone setting of the master remote controller remains at heating / temperature setting at 27°C.

<Cautions>Operation code cannot be set by the sub central remote controller.Combined zone operation can only be set by zone registration of the main central remote controller.Both main and sub central remote controller are operated by a Last priority command for the functions other than the above.However, the display on the central remote controller cannot be changed by each other. (On the display for the group, you can monitor the present operation status.)

Sequential Start<Operation command from central control equipment>

Each unit operates in sequence. For example, if you set the simultaneous operation by the central remote controller, which controls 1-00 ~ 4-15 and 5-00 ~ 8-15 groups, two outdoor units start simultaneously.

Registering ZoneIt is possible to set multiple groups as one zone and control each zone separately.No zones are registered when the unit is shipped from the factory.Zone registration can be done in the individual screen, all screen, or zone screen.

7 8

9

4

361

5

2

108 VAM–GJ Series


Registration1. Pressing the “ALL/INDIVIDUAL” button for four seconds. Displays ZONE SET.

Zone Number 1 will be displayed, and if there are any groups already registered in the displayed zone, a “ ” will light up on the operation monitor.

2. Select the Zone Number to be registered using the “ZONE NUMBER” button.Keeping the button pressed down will move it rapidly.

3. “ ” to the group you wish to register using the arrow keys.Keeping the button pressed down will move it rapidly.

4. Press the “SELECT” button to register that group to the zone.

The “ ” display lights up on all the selected units.Pressing the “RESET” button removes the group from that zone, and “ ” goes OFF.

Repeat steps 3 and 4 until all the units you wish to register to the zone have been added.

In this example, a screen is shown with units 1-00, 1-02, 1-03, and 2-00 registered to Zone Number 1.5. Repeat steps 2 to 4 to register to the next zone.6. Once zone registration is complete, press the “ALL/INDIVIDUAL” button to turn OFF “ZONE SET” display and

return to the individual screen.The display returns to the normal screen if nothing is done for one minute when in zone registration mode.

(NOTE)It is impossible to register one group to several different zones.If this is done, the last zone registered to will be valid.

3P124623-8D

Batch deletion of zone registration1. Pressing the “ALL ” for at least four seconds while pressing the “FILTER SIGN RESET” button when

“ZONE SET” is displayed will delete all zone registrations.The zone registrations for all units will be lost.

3P124623-8D

Zone settingSet the screen of [Zone 0] on the display, and if you set the following mode, you can set to the all zone registered on the central remote controller by one operation.

Operation modeControl modeRoom temperature settingTime NO.

Display of “NOT AVAILABLE”If indoor units are not available for functions subject to control even when attempting to operate these functions from DCS302C(A)61, the system will display this “NOT AVAILABLE” message.This message is displayed for a period of approximately two seconds. However, if any button corresponding to functions not available while the “NOT AVAILABLE” is displayed, it will be displayed for a period of another approximately two seconds.The following section shows the conditions for this display.

On the Individual screen,When the indoor unit is chosen, “NOT AVAILABLE” will be displayed if the “VENTILATION MODE ”, “VENTILATION STRENGTH” button is pushed.When the HRV unit is chosen, “NOT AVAILABLE” will be displayed if the “OPERATION MODE SELECTOR”, “FAN DIRECTIOIN ADJUSTMENT” “FAN STRENGTH ADJUSTMENT” “TEMPERATURE ADJUSTMENT (ZONE NUMBER)” button is pushed.

When an indoor without FAN DIRECTION, FAN STRENGTH is chosen, “NOT AVAILABLE” will be displayed if “FAN DIRECTION", “FAN STRENGTH” button is pushed.When a HRV without VENTILATION MODE, VENTILATION STRENGTH is chosen, “NOT AVAILABLE” will be displayed if “VENTILATION MODE ”, “VENTILATION STRENGTH” button is pushed.

On the Zone screen and All screen, the FAN DIRECTION ADJUSTMENT, FAN STRENGTH ADJUSTMENT, VENTILATION MODE, and VENTILATION STRENGTH buttons are disabled.Pressing any of these buttons will display the “NOT AVAILABLE” message on the screen.

1 2

3

5 4

6

7

2

1

9 8 2

VAM–GJ Series 109


With the Schedule Timer not connected, even if the “Timer No.” button is pressed, the “NOT AVAILABLE” message will not be displayed.While in double central control function, even if the OPERATION CODE button is pressed, the “NOT AVAILABLE” message will not be displayed.

Monitor in zone unitOperating and monitoring the system even in group or zone unit has become enabled from the DCS302C(A)61.Monitoring in zone unit is conducted taking an indoor unit with a lower address within the zone as the Main Indoor Unit.

For monitoring the zone settings: The following screens are displayed.

If the system is operated on the Zone screen, one and the same setting will be made on all indoor units registered with the zone.On the Zone screen, ventilation mode is only monitored. In order to change ventilation mode, be sure to use the Individual screen.

On the Batch screen, operating and monitoring is also enabled, thus monitoring an indoor unit with a lower address within the scope of control.

Changing the Fan Direction and Fan StrengthThis changes the fan direction and strength settings in the air conditioner.Changing the fan direction and strength is done in the individual screen.

[Registration]1. Press the “ALL/INDIVIDUAL button” to enter the individual screen.

The unit will enter the individual screen automatically if nothing is done for one minute.

2. Using the arrow keys, move the “ ” to select the units to fan direction adjustment or fan strength adjustment.Keeping the button pressed down will move it rapidly.

3. Press the “FAN DIRECTION ADJUSTMENT” button.This sets “fixed” or “swing” for the fan direction.

Press the “FAN STRENGTH ADJUSTMENT” button.

Pressing this button scrolls through “ ”, “ ” and “ ”.

Depending on the indoor unit, only “ ” and “ ” may be available.

The functions included in the indoor units may vary.Pressing a button for a function which is not available will cause “NOT AVAILABLE” to be displayed.

3P124623-8D

Main Indoor UnitOperation Code

Timer No.Temp. Display Operation Mode Ventilation Mode

Zone 1 1-00 1-00 1-00 1-00 N/A

Zone 2 1-03 1-03 1-03 1-03 1-05

Zone 3 1-06 1-06 1-07 1-07 1-06

Zone 4 2-00 2-00 N/A N/A 2-00

1-00 1-01 1-02

Zone 1

1-03 1-04 1-05HRV

Zone 2

1-06 1-07 1-08

Zone 3

2-00 3-00 4-00

Zone 4

Central RemoteController

Outdoor Unit

Indoor Unit

L

INDIVIDUALLY

C

1

2

3

6

5

4

1 2

3 4

5

6

L H HH

L H

110 VAM–GJ Series


Changing the Ventilation Mode and Ventilation StrengthThis changes the ventilation mode and strength settings in the total enthalpy heat exchanger.Changing the ventilation mode and strength is done in the individual screen.

[Registration]1. Press the “ALL/INDIVIDUAL button” to enter the individual screen.

The unit will enter the individual screen automatically if nothing is done for one minute.

2. Using the arrow keys, move the “ ” to select the units to ventilation mode or ventilation strength adjustment.Keeping the button pressed down will move it rapidly.

3. Press the “VENTILATION MODE” button.It will scroll through “ ” → “ ” → “ ” → “ ” .

Press the "VENTILATION STRENGTH ADJUSTMENT" button.

It will scroll through “ ” → “ ” → “ ” → “ ” → “ ”.

The fresh up function may not be available depending on the connected unit model.The functions included in the indoor units may vary.Pressing a button for a function which is not available will cause “NOT AVAILABLE” to be displayed.

Ventilation Mode and AmountIf these are changed using the remote controller depending on the unit model, they cannot be displayed on the central remote controller.To monitor the ventilation mode and amount, check the values on the remote controller.

3P124623-8D

Timer Number Setting(Only when used with the schedule timer)Using this together with the schedule timer makes it possible to set on and off times four times a day.4 times of ON / OFF time can be set up per day. Because, two settings of ON / OFF time are possible to one Schedule Timer and two Schedule Timers can be registered into a Central Remote Controller.

[Registration]1. Pressing the “TIMER NO.” button causes the number set for timer number 1 to blink.

If no timer setting has been made “ ” will be displayed.Select the desired timer number by pressing the “TIMER NO.” button.

2. Once the desired timer number is displayed, press the “SET” button.Press the “SET” button within 10 seconds after the timer number is displayed.The display will return to how it was after 10 seconds.The display for timer number 1 will stop blinking and then timer number 2 will start blinking.

FRESH UPFRESH UPH

INDIVIDUALLY

1 3

6

5

42

1 2

3 4

5

6

L HL

FRESH UPFRESH UP FRESH UPH

LL

L

No.

INDIVIDUALLY

C1 2

2

1

No.1 2

1

1

No.1 2

2

2

VAM–GJ Series 111


3. Select the desired timer number by pressing the “TIMER NO.” button.Once the desired timer number is displayed, press the “SET” button.The display for timer number 2 will stop blinking.

The “ ” display will disappear after 3 seconds.

Select “ ” in the timer number when you do not wish to set a timer number.It is possible to set only one timer number.(The times for turning the unit(s) on and off twice a day can be set with a single timer number.)

Timer Number SettingGroup control : select the unit in the individual screen and set the timer number.Batch control : set the timer numbers for all connected units.Zone control : set the timer numbers for all zone-registered units.

Call up the zones which you wish to set in the zone screen and set the timer numbers.

Since the timer number will be set to after-press priority, the timer number in the last screen set will be valid for the connected units.

Example 1Setting timer number 1 for unit 1-00 to “1” and timer number 2 to “2” in the individual screen and then setting timer number 1 to “3” and timer number 2 to “4” in the batch screen causes the timer numbers for all units to be set, so timer number 1 for unit 1-00 will be “3” and timer number 2 will be “4”.Example 2To prevent leaving units on, timer number 1 is set to “5” in the batch screen.Setting timer number 1 in zone number 1 to “ ” in the zone screen after that will change the timer number for zone number 1, so the setting to prevent leaving the units on will be lost for zone number 1 only.If a timer number is set incorrectly by accident, redo the setting in the desired screen.

What happens when the timer number on time and off time are set to the same timeWhen the on time and off time are set to the same time for the same timer number, operation does not change.When the on time and off time are set to the same time for different timer numbers, the off time is given priority.When using timer operation, make sure the times do not overlap when setting the program of the schedule timer.

3P124623-8D

6.7.6 Wiring instructions

Wiring instructionsFor control wiring of DIII-NET, you can select from the following 3 types of wiring methods. 1. Series method :

Wiring is connected by a single line from the central controller.

2. Bus method :Up to 16 branches is possible. Never diverge the sub-branches from the branch line.

No.1 2

1

2

No.

112 VAM–GJ Series


3. Star method :Up to 16 branches is possible. Never diverge the sub-branches from the branch line.

Specifications of transmission wiringBe sure to use either 2-core sheathed vinyl cord or cable as mentioned below. The size of wire should be selected in the range of 0.75~1.25 mm².

∗ When the shield wire is used, be sure to ground the one side of the shield wire.

<Length of control wiring>Between central remote controller and air-conditionerMaximum extension : 1,000 m, Total length : 2,000 m (∗)∗ When you have branches, be sure to make a total length of all the branch.

6.7.7 Instructions for initial setting

INSTALLATION TABLEWhen installing the equipment, mark the zone No. of each group and installation location in the below table.

Setting group No.(Setting is not possible unless power is activated to both the central remote controller and indoor unit.)

Operated by remote controller1. Activate power to both the central remote controller and

indoor unit.2. While in the normal mode, hold down the “ ” button

for a minimum of 4 seconds. The unified ON/OFF controller will enter the FIELD SET MODE.

3. Select the MODE No. “ ” with the “ ” button.4. Use the “ ” button to select the group No. for each

group. (Group No. increases in the order of

1-00, 1-01 ... 1-15, 2-00, ... 8-15.)

5. Press “ ” to set the selected group No.

6. Press “ ” to return to the NORMAL MODE.

Operated by simplified remote controller1. Activate power to both the central remote controller and

indoor unit.2. Remove the upper part of the remote controller.3. Press the BUTTON (field set) on the PC

board. The controller will enter the FIELD SET MODE.4. Select the MODE No. “ ” with the BUTTON

and BUTTON (temperature setting).5. Use the BUTTON (set A) and

BUTTON (set B) to select the group No. for each group. (Group No. increases in the order of 1-00, 1-01 ... 1-15, 2-00, ... 8-15.)

6. Press BUTTON (set/cancel) to set the selected group No.

7. Press BUTTON (field set) to return to the NORMAL MODE.

3P124623-8D

Vinyl cab tire round cord VCTF JISC 3306Vinyl insulated, vinyl sheathed cable for control CVV JISC 3401Round vinyl sheathed cable for control CVS JISC 3401600V vinyl cab tire cable VCT JISC 3312Polyethylene insulated vinyl sheathed cable (∗) CPEVMesh insulated cable (∗) MVVS

MODE NO.FIELD SETMODE

GROUP NO.

45 32.6

556

4 4

3.7

MODE NO. GROUP NO.

VAM–GJ Series 113


<Cautions>Even in the system without remote control, connect the remote controller once to set group No. for central control equipment and remove the remote controller after setting.When you set the group No., be sure to supply the power to the central remote controller, the unified ON / OFF controller and the indoor unit.

<Example of group setting>

CautionsWhen the power is supplied, all the display appears once on the remote controller and then the display changes to [88] for about one minute and during that time the remote controller does not function. However, this is not a malfunction of remote controller.

Control Mode Setting by Remote Controller (Field Setting)The control mode defines the function of local remote controllers to handle various types of control and applications. Function can be defined by conditions and combinations of local remote control operations such as ON / OFF etc. (See table below.)Operation can always carried out from the central remote controller. (Except when connected to the central monitoring panel.)

Description of Control ModeThe following 5 operation control modes and 20 modes combined with temperature and operation mode setting by the remote controller are set and display by the control mode of 0 through 19.Remote Control RejectionFor when you want to turn ON / OFF using central remote controller only. (ON / OFF cannot be carried out by remote controller.)Remote controller OFF Only AcceptedFor when you want to turn on only by the central remote controller, and turn OFF only by local remote controller.Central PriorityFor when you want to turn on only by the central remote controller, and during the set time, turn ON / OFF freely by local remote controller.Individual Priority (Last Command Priority)For when you want to turn ON / OFF by both central remote controller and local remote controller.Remote Controller Permission TimerFor when you want to turn ON / OFF by local remote controller during set time, but you do not want to start operation from the central remote controller at the programmed time of system start.Note:The control mode consists of numbers 0 through 19, but only 0 through 9 are usually set.

114 VAM–GJ Series


6.7.8 Selection of control mode No.Select whether to accept or to reject the operation from the remote controller regarding the operation, stop, temperature setting and operation mode setting, respectively, and determine the particular control mode from the rightmost column of the table below.(Example)

Note) Do not select the timer operation possible without the remote controller. In this case, timer operation is disabled.

3P124623-8D

Timing Chart for Each Control Mode No. (VRV system)Timing charts for scheduled operation and remote controller control for each control mode No. as follows.

1. Remote controller rejection (Code No. 0, 1, 10, 11)

Operation mode

Control by remote controller

Control mode

Operation

StopTemperature

controlOperation

mode setting

Unified operation, individual operation by central remote controller, or operation controlled by timer

Unified stop, individual stop by central remote controller, or timer stop

ON/OFF control impossible by remote controller

Rejection(Example)

Rejection(Example)

Rejection(Example)

RejectionAcceptance 0

Rejection 10

Acceptance(Example)

Acceptance(Example)

1 (Example)

Rejection 11

Only OFF control possible by remote controller

Acceptance


Rejection 12

AcceptanceAcceptance 3

Rejection 13

Centralized

Acceptance


Rejection 14


Rejection 15

Individual Acceptance


Rejection 16


Rejection 17

Timer operation possible by remote controller

Acceptance(During timer at

ON position only)

Rejection(During timer at OFF

position)


Rejection 18


Rejection 19

Operation by remote controller (at time of unified operation by centralized control)

Operation by remote controller (at time of unified operation by centralized control)

Operation mode setting by remote controller

Temperature control by remote controller

Stop by remote controller

[Rejection] [Rejection] [Rejection] [Acceptance] [Acceptance]

The controlmode is “ 1 ”.

When the operation, stop, temperature setting and operation mode setting by remote controller are rejected, “ ”is displayed on the remote controller.

VAM–GJ Series 115


2. Remote controller off only accepted (Code No. 2, 3, 12, 13)

3. Central priority (Code No. 4, 5, 14, 15)

4. Individual priority (Last command priority) (Code No. 6, 7, 16, 17)

5. Remote controller permission timer (Code No. 8, 9, 18, 19)

∗ Operation by remote controller is the same as central priority.

OFFON ON OFF OFF OFF

OFF

OFF

OFF

ON ON

ON

ON

ON

OFFON

AcceptanceRejection

ONDCS302C(A)61

Command

Schedule Timer Operation by Central Remote ControllerOFF TimeON Time

Remote Controller Command

Indoor Units Status

Operation by Central Remote Controller

OFF OFFON ON

OFFON

OFFONOFFON

OFFON

AcceptanceRejection

Schedule Timer Operation by Central Remote ControllerOFF TimeON Time


Indoor Units Status


DCS302C(A)61

Operation Cord

It switches to the cord of "Remote Controller Permission Timer" Remote Controller Permission TimerLast command priority

AcceptanceRejection

ONOFF

OFF

ONONON OFF

OFF Time OFF TimeON Time

ONOFFON OFF

ONONON

ON

OFF

ON TimeSchedule Schedule

OFF

OFF

Schedule Timer


DCS302C(A)61 Command


Indoor Units Status

116 VAM–GJ Series


6.7.9 Initial setting

2P162816

VAM–GJ Series 117


6.7.10 Electric wiring

2P162816

118 VAM–GJ Series


6.7.11 Setting group No. for centralized control

2P162816

6.7.12 Special function settingsSpecial functions on the central control system can be changed while in FIELD SETTING mode.

Setting Procedure1. Press and hold the INSPECTION/TEST RUN button for a period of four seconds or more to set the system to FIELD SETTING

mode.2. Use the TEMPERATURE ADJUSTMENT button to select a desired Mode No.

: Press to increase the Mode No. : Press to decrease the Mode No.3. Press the CONTROL MODE (CODE No.) button to select a “Switch Setting No.”.4. Press the SET button to determine the content of the setting changed.

Upon determination, the blinking the “Switch Setting No.” will turn ON.5. Press the INSPECTION/TEST RUN button to return the system to NORMAL mode.

In this case, power supply is not needed to turn ON again.

Example : In case of no restriction items from the sub central remote controller while in double central control, make setting of the Mode No. to “02” and the Switch Setting No. to “0”.

Setting Contents and Setting No.

Items indicated by boldface represent the factory set for the No. of Switch Setting.Do not make setting of any items not listed in the table above.

Mode No. Setting contentsNo. of setting switch

0 1 2

00 Setting of sequential operation function NO YES –

01 Setting of refresh function NO YES –

02Setting of restriction items from sub central remote controller while in double central control function

Disabled Enabled –

03Setting of area designation for forced OFF(Operation with T1 and T2 entered)

Forced OFF all within the scope of control

Forced OFF only within the scope of control

Forced thermostat OFF with the scope of control

C

421.5

3

SET

Mode No.

Switch Setting No.

VAM–GJ Series 119


Refresh functionThis function is used to automatically send “OPERATION MODE” and “TEMPERATURE SETTING” from the central control system while in operation. In order to disable the refresh function, set the “No. of Switch Setting” to “0”.

Restriction items from sub central remote controller while in double central control functionWhile in double central control function, no settings of zone interlock and operation code can be made from the sub central remote controller. In order to disable the refresh function from the sub central remote controller, set the “No. of Switch Setting” to “0”.

Setting of area designation for forced OFF• In order to stop all indoor units within the scope of control as a single unit using the entry of T1 and T2, set the “No. of Switch

Setting” to “1”.• In order to stop all indoor units within the scope of control with forced thermostat OFF using the entry of T1 and T2, set the “No.

of Switch Setting” to “2”. With this parameter set to “2”, no forced stop can be made on any indoor unit.

6.7.13 Refreshed operationRefreshed operation is the function to transmit setting of “Temperature control”, “Temperature setting” automatically from DCS302C(A)61.“Refreshed operation” is “ON” when shipped from the factory.Factory Setting

It depends on the setting of outdoor systems that an indoor unit setting is “Temperature control” or “Temperature setting”In case of Refreshed operation is “ON”• When setting is changed by DCS302C(A)61, it operates by this setting from the next operation.

If it sets up with 26 °C in cooling by DCS302C(A)61, “in the case of the equipment which has not carried out zone setting by a central remote controller, it operates from next with the mode of operation and preset temperature which were set up on the individual screen.” In the case of the equipment which carried out zone setting, it operates from next with the mode of operation and preset temperature which were set up on the zone screen.(Priority is given over the mode of operation and preset temperature which were set up on the zone setting screen). When it sets up all at once, it operates from next with the mode of operation and preset temperature which were set up last time on the individual screen (Equipment which has not carried out zone registration), or the zone screen.If a setting change is made with 26 °C of cooling by a central remote controller on an individual screen (Equipment which has not carried out zone setting) next operation will also be operated at 26 °C in cooling. (Even if it has changed into heating operation, fan only operation with wired or wireless remote control, it operates at 26 °C in cooling.)

• When zone registration is carried out by Central Remote Controller.It operates from next time with the value set up in the zone.When a zone 1 is set up with 20 °C of heating. (Refer to the system of the following figure.)When controlled by Central Remote Controller, 3 indoor units registered into the zone 1 are operated by 20 °C of heating. Because priority is given to zone setting, even if it sets up 2-02 with 25 °C of heating on an individual screen from Central Remote Controller, 2-02 is operated at 20 °C.

• When there are two or more indoor units in a zone.Because an operating mode depends on the outdoor unit, the operating mode of each indoor unit does not become the same setting.When the outdoor unit system 1 is cooling, the outdoor unit system 2 is heating and it operates by the system of the following figure. Setting of a zone 2 is operated in heating mode, because 2-03, 2-04, and 2-05 do not have a cooling/heating selection right as for 26 °C of cooling, but temperature setting becomes 26 °C.When you unify the operating mode of an indoor unit in the same zone, please set up a zone in the indoor unit of the same outdoor unit system.

Outdoor Units Systems Indoor Units Mode

Cooling Mode Cooling 28 °C

Heating Mode Heating 22 °C

Fan Mode Fan Operation

Outdoor UnitSystem 1

Outdoor UnitSystem 2

Cooling / Heating Selection Right

1-00 1-01 1-02 1-03 1-04 1-05

Zone 2

2-00 2-01 2-02

Zone 1

2-03 2-04 2-05

Central RemoteController

120 VAM–GJ Series


Installation

2P162816

6.7.14 Error diagnosing functionThis central remote controller is provided with a diagnosing function, for when an indoor unit stops due to malfunction. In case of actuation of a safety device, disconnection in transmission wiring for control or failure of some parts, the operation lamp, inspection display and unit No. start to flash; then, the malfunction code is displayed. Check the contents of the display, and contact your DAIKIN dealer because the above signs can give you the idea on the trouble area.The display " " flashes under the group No. where the indoor unit that has stopped due to malfunction.

[Registration]1. Press the ARROW KEY BUTTON to call up the group that has stopped due to

malfunction.The unit No. the malfunction code is flashing because of an error failure.

3P124623-8D

1

2

3

00 01 02 03

L UNIT No.

C

1

2 3

Operation lamp

Maintenance display Unit No. Malfunction

code Error content

64 Indoor air thermistor error

65 Outdoor air thermistor error

68 HVU error (Ventiair dust-collecting unit)

6A Dumper system error

6A Dumper system error + Thermistor error

6F Simple remote controller error

6H Door switch (Ventiair dust-collecting unit), relay harness fault (Ventiair dust-collecting/humidifier unit)

94 Ventiair internal transmission error (between total enthalpy – fan unit)

A0 Indoor unit · external safety device error

A1 Indoor unit · BEV unit (Sky-Air connection unit) PC board assembly fault

A1 Indoor unit · PC board assembly fault

A3 Indoor unit · Drain level error (33H)

A6 Indoor unit · Fan motor (51F) lock, overload

A7 Indoor unit · Fan direction adjustment motor (MA) error

A9 Indoor unit · BEV unit, electric expansion valve motor (20E) error

AF Indoor unit · Malfunctioning drain

AH Indoor unit · Dust-collector error

AJ Indoor unit · Insufficient capacity setting, address setting fault

VAM–GJ Series 121


3P124623-8D

C4 Indoor unit · Liquid piping thermistor (Th2) Error (faulty connection,cut wire, short circuit, fault)

C5 Indoor unit · BEV unit, gas piping thermistor (Th3) Error (faulty connection, cut wire, short circuit, fault)

C9 Indoor unit · Intake air thermistor (Th1) Error (faulty connection, cut wire, short circuit, fault)

CA Indoor unit · Outlet air thermistor (Th4) Error (faulty connection, cut wire, short circuit, fault)

CJ Indoor unit · remote controller sensor error

E0 Outdoor unit · Safety device operation

E1 Outdoor unit · PC board assembly fault

E1 Outdoor unit · PC board assembly fault

E3 Outdoor unit · High-pressure switch fault

E4 Outdoor unit · Low-pressure switch fault

E9 Outdoor unit · Electric expansion valve motor (20E) error

EC Heat source unit · Intake water temperature inter-lock operation (fan operation)

EF Outdoor unit · Ice thermal storage unit error

F3 Outdoor unit · Discharge piping temperature error

H3 Outdoor unit · High-pressure switch operation

H4 Outdoor unit · Low-pressure switch operation

H9 Outdoor unit · Outdoor air thermistor (Th1) Error (faulty connection, cut wire, short circuit, fault)

H9 Outdoor unit · Outdoor air thermistor (Th1) Error (faulty connection, cut wire, short circuit, fault)

HC Outdoor unit · Water temperature sensor system error

HF Ice thermal storage unit error, ice thermal storage controller error, error in outdoor unit during ice thermal storage operation

HJ Outdoor unit · water system fault

J1 Outdoor unit · pressure sensor error

J3 Outdoor unit · Discharge piping thermistor (Th3) Error (faulty connection, cut wire, short circuit, fault)

J3 Outdoor unit · Discharge piping thermistor (Th3) Error (faulty connection, cut wire, short circuit, fault)

J5 Outdoor unit · Intake piping thermistor (Th4) Error (faulty connection, cut wire, short circuit, fault)

J6 Outdoor unit · Heat exchange thermistor (Th2) error

J6 Outdoor unit · Heat exchange thermistor (Th2) errorError (faulty connection, cut wire, short circuit, fault)

J7 Outdoor unit · Header thermistor (Th6) error

JA Outdoor unit · Discharge piping pressure sensor error

JC Outdoor unit · Intake piping pressure sensor error

JF Outdoor unit · Oil temperature sensor (Th5) system error

JH Outdoor unit · Oil temperature sensor (Th5) system error

L0 Outdoor unit · Inverter system fault

L4 Outdoor unit · Inverter cooler fault

L5 Outdoor unit · Ground circuit for compressor motor, short circuit, orpower unit short circuit

Operation lamp


code Error content

122 VAM–GJ Series


3P124623-8D

error codes (in outline font) do not display “maintenance” and the system will run, but please check the content of the display and contact your dealer.

L6 Outdoor unit · Ground circuit for compressor motor, short circuit

L8 Outdoor unit · Compressor overload, compressor motor wire disconnection

L9 Outdoor unit · Compressor lock

LA Outdoor unit · Power unit error

LC Outdoor unit · Transmission error between inverter and outdoor control unit

or M1 Central controller: PC board fault

or M8 Transmission error between central controllers

or MA Central controller: Incorrect combination

or MC Central controller: Address setting fault

P0 Insufficient gas (thermal storage)

P1 Outdoor unit · Power voltage imbalance, phase loss

P4 Outdoor unit · Power unit temperature sensor error

U0 Pressure drop due to insufficient refrigerant, electric expansion valve fault, etc.

U1 Reversed or lost phase

U2 Power voltage error, momentary electrical stoppage

U4 Transmission error between indoor unit/BEV unit and outdoor/BS unit, Transmission error between outdoor unit and BS unit

U5 Transmission error between remote controller and indoor control unit

U5 Remote controller board fault or remote controller setting fault

U6 Transmission error between indoor units

U7Transmission error between outdoor unitsTransmission error between outdoor unit and ice thermal storage unit

U7 Transmission error between outdoor units (cooling/heating batch, low-noise operation)

U8

Transmission error between master remote controller and slave remote controller (slave remote controller error)Incorrect combination of indoor unit and remote controller within a singlesystem (model)

U9

Transmission error between indoor unit/BEV unit and outdoor unit within asingle systemTransmission error between BS unit and indoor unit/BEV unit and outdoorunit within a single system

UA

Incorrect combination of indoor, BS, and outdoor units within a single system (model, number of units, etc.)Incorrect combination of indoor unit and remote controller (remote controller in question) BS unit connection position fault

UC Central control group numbers overlap

UE Transmission error between indoor unit and central controller

UF Unset system, incorrect settings between BEV unit and indoor unit

UH System fault

Operation lamp


code Error content

VAM–GJ Series 123


6.8 DCS301B(A)61 : Unified ON / OFF controllerTurns up to 16 groups of indoor units (max. 128 units) ON / OFF (operation / stop) by individual group or all at once, and lets you check display of operation / malfunction at the same time.

6.8.1 System configuration

1P162827

For a maximum of 16 groups of indoor units (max. 128 units), unified operation / stop or individual operation / stop can be performed with this optional accessory. Also allows you check operation / error display at a glance.By combining with a central remote controller and schedule timer, you can construct a system that matches the size and use of the building.Up to 8 units connectable within 1 system.Up to 16 units in the double central control mode.Features thin design of a mere 16 mm in thickness. (Uses JIS recessed box for 2.)Wiring can be up to 1 km in length. Applicable wiring methods include bus and star in addition to crossover type.Can be used in combination with other D-BACS equipment.

124 VAM–GJ Series


6.8.2 Electric wiring

1P162827

VAM–GJ Series 125


6.8.3 Dimension

Unified ON / OFF ControllerDCS301B(A)61

6.8.4 Installation

1P162827

3D050339

Unit (mm)

126 VAM–GJ Series


6.8.5 Initial setting

1P162827

VAM–GJ Series 127



1P162827

6.8.7 Confirming operation

1P162827

128 VAM–GJ Series


6.9 DST301B(A)61 : Schedule timerEnables you to connect and control weekly schedule for up to 128 indoor units all together.

6.9.1 System configuration and electric wiringWith a schedule timer, you can set ON / OFF time twice a day by units of 1 week for up to 128 indoor units.

System Configuration

If using the schedule timer alone, you don’t have to set the centralized control group No. for group control.

Transmission Wiring<Indoor Unit Wiring>

1. If using the schedule timer alone :For the schedule timer’s power supply, connect the schedule timer (D1, D2) with the connector (X18A) on the indoor unit PC board by crimped style terminal with the attached electric wire.

2. If using in combination with other optional controllers for centralized control :

Transmission wiring for control : 0.75~1.25 mm2 sheathed vinyl cord or cable (2 wire) ..... Max. 1,000 m (Total Max. 2,000 m)

<Transmission Wiring Connection Example>1 series wiring, 2 bus wiring, and 3 star wiring are the same as with the central remote controller.

Simultaneous control of up to 128 indoor units is managed by a week schedule.The start and stop time for twice a day can be set for the week in increments of 1 minute.By combining with a central remote controller and schedule timer, you can construct a system that matches the size and use of the building.If used together with a central remote controller, you can set up to 8 schedule patterns which can be distributed among zones as desired using the central remote controller.Is equipped with a compensation function for power failure up to 48 hours.Features thin design of a mere 16 mm in thickness. (Uses JIS recessed box for 2.)Wiring can be up to 1 km in length. Applicable wiring methods include bus and star in addition to crossover type.Can be used in combination with other D-BACS equipment.

VAM–GJ Series 129


6.9.2 Names and functions (DST301B(A)61)

3P124623-5C

1 2364

9

7

8

10 11

5

DST301BA61

Fig. 1

1715 1412

13 18 19 20

16

DST301BA61

Fig. 2

130 VAM–GJ Series


6.9.3 Names and functions of operating section (Fig. 1, 2)

3P124623-5C

6.9.4 Dimension

Schedule TimerDST301B(A)61

1

UNIFIED OPERATION BUTTON “ ”

Press this button to perform the unified operation regardless of the No. of programmed time.

2

UNIFIED STOP BUTTON “ ”

Press this button to perform the unified stop regardless of the No. of programmed time.

3OPERATION LAMP (RED)

The light turns on during the operation of the indoor unit.

4

DISPLAY “ ” (TIME NO.)

Displays the time No. only when used in conjunction with the central remote controller.

5

DISPLAY “PROGRAM START.”(PROGRAMMING START)

The light turns on when the timer is programmed.

6

DISPLAY “ OFF ” (HOLIDAY SETTING)

Lights above the day of the week set as holiday. The operation controlled by timer is not available on that day.

7DISPLAY “ — ” (SETTING OF DAYS OF A WEEK)

Flashes below the day of the week programmed.

8

DISPLAY “ ” (MALFUNCTION CODE)

Displays the contents of malfunction during the stop due to malfunction.

9DISPLAY “ ” (PRESENT TIME)

Displays the present day of the week and time.

10

DISPLAY “ ”

(PROGRAMMED TIME OF SYSTEM START)

Displays the time programmed to start.

11DISPLAY “ ” (PROGRAMMED TIME OF SYSTEM OFF)

Displays the time programmed to stop.

12TIME NO. BUTTON “ ”

13CLOCK ADJUSTING BUTTON “ ”

Press this button to set the present time.

14

PROGRAMMING START BUTTON “ ”

Press this button to set or check the No. of programmed time. Press it again after you are through with the program.

15BUTTON FOR SELECTING DAYS OF A WEEK “ ”

Press this button to select the day of the week.

16

HOUR/MINUTE BUTTON “ ”

Press this button to adjust the present time and the programmed time.

17

TIMER ON BUTTON “ ”

Press this button to set the present time and the programmed time.

18HOLIDAY SETTING BUTTON “ ”

Press this button to set holidays.

19

BUTTON FOR COPYING PROGRAM OF PREVIOUS DAY “ ”

Use this button to set the No. of programmed time same as that of the previous day.

20

PROGRAM CANCELING BUTTON “ ”

Use this button to set the programmed time to cancel. The display shows “ – ; – – ”.

(Note)1. Please note that all the displays in the figure appear for

explanation purpose or when the cover is open.

3D049544

Unit (mm)

VAM–GJ Series 131


6.9.5 Installation and initial setting

3P162015A

132 VAM–GJ Series


3P162015A

VAM–GJ Series 133



3P162015A

6.9.7 Error diagnosing function

This schedule timer is provided with the malfunction diagnosing function. The malfunction code flashes if there occurs any malfunction in communication, etc. between and among the optional controllers for centralized control. In addition, the operation lamp also flashes if there occurs any malfunction in communication with the indoor unit. Check the contents of the display and contact your DAIKIN dealer because the signals give you the idea of the trouble area.

134 VAM–GJ Series


3P124623-5C

Operation lamp Malfunction code Contents of malfunction

Turn off M1

Failure of PC board of schedule timer.FixesThe following causes are possible. Check each one.1. PC board problems

Turn on or off M8Malfunction of transmission between each optional controllers for centralized control.FixesCheck all central devices which are connected (e.g., power supply, transmission wiring, etc.).

Turn on or off MA

Improper combination of optional controllers for centralized control.FixesThe following causes are possible. Check each one.1. Are all central devices combined correctly?2. Is the master central connector attached to two or more central devices?3. Are there 128 or more indoor units connected?

Turn on or off MC

Address failure of schedule timer.FixesThe following causes are possible. Check each one.1. Do the control range addresses in the central remote controller overlap?2. Do the control range addresses in the ON / OFF controller overlap?3. Are there 2 or more schedule timers connected?

Flash UEMalfunction of transmission between indoor unit and optional controllers for centralized control.FixesInspect all indoor units which are displaying an error (e.g., power supply, transmission wiring, etc.).

Flash —Malfunction in indoor unit (Refer to the malfunction codes of the indoor remote controller, while also read the “CAUTION FOR SERVICING” attached to the indoor unit.)

VAM–GJ Series 135


6.10 KDDM24B50, KDDM24B100 : Silencer

Applications and features• The silencer effectively reduces the noise of the HRV

units.

• Air flow rate does not drop up to 650 m3 / h for the model

KDDM24B50 and up to 1000 m3 / h for the model KDDM24B100.

CautionThe silencer cannot be used on different model. Confirm the model before installation.

Dimensions

KDDM24B50

KDDM24B100

Installation procedure of silencer1. Remove the flange from

the silencer.

2. Remove the duct coupling of the air supply opening provided on the body of HRV units.

3. Use the provided screws and install the flange on the HRV units.

4. Install the body of silencer on the flange. Then, install the duct coupling.

Installation procedure of duct1. Insert the duct into

the duct coupling and wind round the commercially available aluminum tape, etc. to prevent the air leakage.

Note) This figure shows KDDM24B50.

JC : 3P107619

Part No. KDDM24B50 KDDM24B100

Applicable model VAM500GJVE VAM650GJVEVAM800GJVE, VAM1000GJVE, VAM1500GJVE, VAM2000GJVE

Nominal pipe diameter φ 200 mm φ 200 mm φ 250 mm

Noise suppression effect Approx. 6 dB

19320 340

φ 6 hole

J : D3K03770A

φ 210 φ 210

M4 hole

φ 6 holeM4 hole

φ 260φ 250

380 19 480

J : D3K03771A

Body ofsilencer

Flange

Ductcoupling

HRV unitsAir supply sideof indoor unit

Flange

FlangeBody ofsilencer

Aluminumtape

Duct

136 VAM–GJ Series


6.11 KAF241G25M, KAF241G50M, KAF241G65M, KAF241G80M, KAF241G100M : Air filter for replacement

Specification

Dimension

6.12 KAF242G25M, KAF242G50M, KAF242G65M, KAF242G80M, KAF242G100M : High efficiency filter

Dimension

Specification

Part No. Applicable model Q’ty / Set Required set

KAF241G25MVAM150GJVE

1 1VAM250GJVE


2 1VAM500GJVE

KAF241G65M VAM650GJVE 2 1


21

VAM1500GJVE 2


21

VAM2000GJVE 2

Working ambient temperature – 15 to 50 °CWorking ambient humidity Less than 85% RH

Pressure lossInitial loss : Less than 1.5 mm H2O Final loss : 8 mmH2O

LifeOver 2500 hours(Dust density : 0.10 mg / m3.h)

Average dust collecting efficiency

Over 82% (Gravimetric method)

Dimension table [mm]Part No. AA AB

KAF241G25M 457 164KAF241G50M 724 173KAF241G65M 756 202KAF241G80M 756 230

KAF241G100M 1138 230JC : D3K03775

Part No. Applicable model Q’ty / Set Required set


1 1VAM250GJVE


2 1VAM500GJVE

KAF242G65M VAM650GJVE 2 1


21

VAM1500GJVE 2


21

VAM2000GJVE 2

Filters material Non woven cloth

Available conditionsAmbient temperature (0 – 50°C)Relative humidity (40 – 95%)

Initial pressure loss 24.5 Pa (2.5 mmH2O) or less.Final pressure loss 78.4 Pa (8 mmH2O) or less.Average dust collecting efficiency 65% (Colorimetric method)Life time Over 2500 hours (Outdoor dust density : 0.1 mg / m3)VAM1500 · 2000 need 2 sets per one unit.

Filter frameFilter element

Dimension table [mm]Part No. AA AB

KAF242G25M 465 164KAF242G50M 362 173KAF242G65M 378 202KAF242G80M 378 230

KAF242G100M 569 230

JC : D3K03725

VAM–GJ Series 137


6.13 K-FDS101C, K-FDS151C, K-FDS201C, K-FDS251C,K-FDS102C, K-FDS152C, K-FDS202C, K-FDS252C : Flexible duct

Applications and features• Flexible duct is used for the outdoor supply air / exhaust

air.• The flexible duct can be bent according to the place of

installation and is suitable for installation involving a height difference between the body and the supply air / exhaust air opening. The flexible duct helps simplify installation and construction.

• The flexible duct can be extended by using provided joints.

Cautions• Do not use the flexible duct in a place of mush oil and

smoke or high humidity such as bathroom and kitchen.• Broken flexible duct and surface sheet cause air

leakage. Pay particular attention to them.• Maintain the wind speed at 15 m / sec. inside the flexible

duct. Working static pressure must be within –13 mmH2O to 50 mmH2O.

Installation procedure• Use the nominal diameter of the connecting pipe

according to the noise suppression duct diameter.• Use the provided clamp band to secure the noise

suppression duct. Insert the connection opening of the noise suppression duct into the connecting pipe and tighten with clamp band.

1. Insert the connection opening of the noise suppression duct into the connecting pipe.

2. Install the clamp band on the connection opening of the noise suppression duct.Use a screwdriver to turn the clamp screw to securely clamp the duct.

6.14 YDFA25A1 : Duct adapter

Part Name : 1 m K-FDS101C K-FDS151C K-FDS201C K-FDS251C

Part Name : 2 m K-FDS102C K-FDS152C K-FDS202C K-FDS252C

Applicable model VAM150GJVEVAM250GJVEVAM350GJVE

VAM500GJVEVAM650GJVE

VAM 800GJVEVAM1000GJVEVAM1500GJVEVAM2000GJVE

Nominal diameter φ 100 φ 150 φ 200 φ 250

Duct length1 m ( 101C, 151C, 201C, 251C)

2 m ( 102C, 152C, 202C, 252C)

Connection opening

Connecting pipe

Noise suppression duct

(HC0221)

Clamp screw

Clamp bandScrewdriver

(HC0222)

6- 5.5Hole

Material Polystylene (Flammability UL94V O)C : 3D013345

138 VAM–GJ Series


6.15 BRP4A50 : Heater control kitOperation range of the HRV is “ –15°C to 50°CDB 80% RH or below.”When operating the HRV units at or below –10°C of the outdoor air temperature, use preheater (field supplied) to preheat outdoor air.This kit is required for preheater to ON / OFF delay control. (Initial setting is required.)

Cautions• For electric heater, safety devices and installation location, follow the standards or regulations of each country.• Use nonflammable duct for the electric heater. Be sure to keep 2 m or more between the heater and HRV unit for safety.• For the HRV units, use a different power supply from that of the electric heater and install a circuit breaker for each.

Electric heater capacity formulaHeat capacity P (kW) = 0.29 × Air flow rate × Temp. / 860

For VAM500GJVE when Air flow rate = 500m3 / h (Ultra-high) and preheater so that the outdoor temp. rise from –20°C to –10°C (Temp. = 10 deg)

P = (0.29 × 500 × 10) / 860 = 1.68 (kW)

Check the temperature rise at low notch. For 2kW heater, when 300m3 / hT = (860 × P) / (0.29 × Air flow rate)

= (860 × 2) / (0.29 × 300) = 19.7 degTherefore – 20 + 19.7 = –0.3°C

Cautions at initial setting• Make sure to set remote controller of HRV at initial setting as follows :

(for ON / OFF delay)

• Heater operating conditionHeater starts operation when it is judged as Heating operation.(Judged from VRV signal of heating operation or HRV signal of thermostat.)

• ON / OFF delayHeater starts 10 seconds after HRV starts operation.Fan stops 3 minutes later after HRV stops operation.

Setting mode Setting switch no. Setting position

Heat setting 19 8 03 or 04

ON

OFFHRV

FAN

EH

10 sec. delay 3 min. FAN delay

heat

coolon

OFFon

OFF

(HC0097)

VAM–GJ Series 139


Installation example

Wiring

Note:Make sure to install TH3 and TH4 for safety.

Test runAfter completing the installation of the system, check again to make sure that no error was made in wiring or switch setting on the printed circuit boards of the HRV units.Then, turn on the power of the HRV units. Refer to the manual of the remote controller of each unit (remote controller for air conditioner, central control unit, etc.) for conducting a trial operation.

Symbol Part Installation Place52H Relay Install a relay box at site Field supplyEH Electric heater (Bimetal switch, Temperature fuse, Thermal cut out etc. (built in) Duct Field supplyTH3 Temperature thermostat (ON when the temperature is at or below –10°C) Duct (Front of EH) Field supplyTH4 Temperature thermostat (OFF when the temperature is at or more than –5°C) Duct (behind of EH) Field supply

HRVReturn Air Exhaust Air

Supply Air Outdoor AirPreheater(Field supply)

Temperature thermostat (Field supply)(Heater ON when the temperature is at or below –10˚C)

Power supply (Field supply)Relay box

Temperature thermostat (Field supply)(Heater OFF when the temperature is at or more than 5˚C)

AdapterBRP4A50

(HC0223)

NFB252H

BRP4A50

Preheater

(Option)TH3 TH4

X9A

X10A HRV

L N

52H

Powersupplyforelectric heater

Electric heater (EH)

Thermal cut out (150˚C)

Bimetal switch(85˚C)

Temperaturefuse (120˚C)

(printed circuit board)

Temperature thermo. (ON when the temperature is at or below –10˚C)

Temperature thermo. (OFF when the temperature is at or more than –5˚C)

Power supplyfor HRV units

(HC0224)

140 VAM–GJ Series


Heater control kit

Switch box

3P055038

3D024303

VAM–GJ Series 141

Psychrometric chart ED71-613

7. Psychrometric chart

7.1 Psychrometric chart

142 VAM–GJ Series

This book is made of recycled paper.ED 71-613Printed in Japan 02/2006 K FS

vam daikin

Documents

fan operation setting

introduction of control

product introduction

product specification

preoperation flowchart

operation mode change

operating sound

fan performance