1.4 operation of the remote control™s inspection / test ..._[angol]_szervíz... · malfunction...

Troubleshooting by Remote Control SiEN30-602

150 Troubleshooting

1.4 Operation of the Remote Control�s Inspection / Test Operation Button

Inspection/test operation

Example model

FXCQ25

FXFQ63

Example of capacity code display

Display

028

071

Product classification

VRV system

VRV system

VRV system

VRV system

Display

1

2

F

H

Indoor unit system code

System classification

(VAV indoor unit)

Outdoor air processing unit

Standard indoor unit

New ceilling suspended cassette

Indoor unit type code

Type

VRV System Inverter K Series

R-407C VRV PLUS Series

VRV Heat Recovery Series

High COP type R-407C L Series

VRV II

VRV II Heat Recovery

VRV II Water cooled inverter series

Display

A A 1

A A 3

A 9 2

A A 5

A A A

A 96

A F C

Outdoor (or outside) unit model code

Model

RSXYP

RXYP

RSEYP

RSXYP-L

RXYQ-M

REYQ-M

RWEYQ-M

UnitMalfunction codeInspection

Normal display (No display)

0L 0

Malfunction code blinks when a malfunction occurs.

UnitMalfunction codeInspection

Inspection mode

Push the button.

Inspection/test operation Push the button.




0L 0

Indoor unit model code display

0 7 1F C J

Outdoor or (outside) unit model code display

– – – A A 1

Test operation

Test operation mode

Capacity codeIndoor unit system codeIndoor unit type codeProgression code

0 7 1...F...C...J...

(V2775)

Type

Wall mounted

Double flow

Corner

Multi flow

Ceiling suspended

Built-in

Floor standing

Concealed ceiling duct

Concealed floor standing type

Slim Ceilling mounted duct

Display

A

C

E

F

H

J

L

P

L

3

Model

FXAQ

FXCQ

FXKQ

FXFQ

FXHQ

FXSQ

FXLQ

FXMQ

FXNQ

FXDQ

SiEN30-602 Troubleshooting by Remote Control

Troubleshooting 151

1.5 Remote Control Service ModeHow to Enter the Service Mode

Service Mode Operation Method

1. Select the mode No.Set the desired mode No. with the button.(For Infrared remote control, Mode 43 only can be set.)2. Select the unit No. (For group control only)Select the indoor unit No. to be set with the time mode . (For Infrared remote control,

button.)3. Make the settings required for each mode. (Modes 41, 44, 45)In case of Mode 44, 45, push button to be able to change setting before setting work. (LCD �code� blinks.)For details, refer to the table in next page.4. Define the setting contents. (Modes 44, 45)Define by pushing the timer button.After defining, LCD �code� changes blinking to ON.5. Return to the normal operation mode.Push the button one time.

Normal operation mode

Field set mode

Service mode

Push the button for 4 seconds or longer. Push the button for 4 seconds or longer.


152 Troubleshooting

Mode No

Function Contents and operation method Remote control display example

40 Malfunction hysteresis display

Display malfunction hysteresis.The history No. can be changed with the button.

41 Display of sensor and address data

Display various types of data.Select the data to be displayed with the button. Sensor data0: Thermostat sensor in remote control.1: Suction2: Liquid pipe3: Gas pipe

Address data4: Indoor unit address5: Outside unit address6: BS unit address7: Zone control address8: Cool/heat group address9: Demand / low noise address

43 Forced fan ON Manually turn the fan ON by each unit. (When you want to search for the unit No.)By selecting the unit No. with the button, you can turn the fan of each indoor unit on (forced ON) individually.

44 Individual setting Set the fan speed and air flow direction by each unitSelect the unit No. with the time mode button. Set the fan speed with the button.Set the air flow direction with the button.

45 Unit No. transfer Transfer unit No.Select the unit No. with the button.Set the unit No. after transfer with the button.

46 This function is not used by VRV ll R-410A Heat Pump 50Hz.

47

Hystory No: 1 - 91: Latest

Unit 1

Malfunction code

2-U4

Malfunction code

40

(VE007)

Temperature ºC

41

Sensor data display

Unit No. Sensor type

1 1

2 7

Address

41

Address display

Unit No. Address type

1 8

1

(VE008)

Unit 1

43

(VE009)

Unit 1

Code44

Air flow direction P0 - P4

1 3

(VE010)

Fan speed 1: low 3: High

Unit 1

Code45

Present unit No.

Unit No. after transfer

0 2

(VE011)


Troubleshooting 153

1.6 Remote control Self-Diagnosis FunctionThe remote control switches are equipped with a self diagnosis function so that more appropriate maintenance can be carried out. If a malfunction occurs during operation, the operation lamp, malfunction code and display of malfunctioning unit No. let you know the contents and location of the malfunction. When there is a stop due to malfunction, the contents of the malfunction given below can be diagnosed by a combination of operation lamp, INSPECTION display of the liquid crystal display and display of malfunction code. It also lets you know the unit No. during group control.

Operation lamp

ON/OFF button

Display of indoor unit for which a malfunction has been detected

Malfunction code

(VL050)

Inspection display


154 Troubleshooting

Malfunction code

Operation lamp

Inspection display

Unit No. Malfunction contents Page Referred

Indoor Unit

A0 9 9 9 Error of external protection device 158A1 9 9 9 PC board defect, E2 PROM defect 159A3 9 9 9 Malfunction of drain level control system (33H) 160A6 9 9 9 Fan motor (MF) lock, overload 162,163A7 8 7 9 Malfunction of swing flap motor (MA) 166A9 9 9 9 Malfunction of moving part of electronic expansion

valve (20E)168

AF 8 7 9 Drain level above limit 170AH 8 7 9 Malfunction of air filter maintenance �AJ 9 9 9 Malfunction of capacity setting 171C4 9 9 9 Malfunction of thermistor (R2T) for heat exchange

(loose connection, disconnection, short circuit, failure)

172

C5 9 9 9 Malfunction of thermistor (R3T) for gas pipes (loose connection, disconnection, short circuit, failure)

173

C9 9 9 9 Malfunction of thermistor (R1T) for air inlet (loose connection, disconnection, short circuit, failure)

174

CJ 8 8 8 Malfunction of thermostat sensor in remote control 175Outside

UnitE1 9 9 9 PC board defect 176E3 9 9 9 Actuation of high pressure switch 177E4 9 9 9 Actuation of low pressure sensor 179E5 9 9 9 Compressor motor lock 181E9 9 9 9 Malfunction of moving part of electronic expansion

valve (Y1E~3E)183

F3 9 9 9 Abnormal discharge pipe temperature 185F6 9 9 9 Refrigerant overcharged 186HJ 9 9 9 Water system defect 188J3 9 9 9 Malfunction of discharge pipe thermistor (R3T)

(loose connection, disconnection, short circuit, failure)

190

J4 9 9 9 Malfunction of heat exchanger gas pipe thermistor (R4T)

191

J5 9 9 9 Malfunction of thermistor (R2T) for suction pipe (loose connection, disconnection, short circuit, failure)

192

J7 9 9 9 Malfunction of liquid pipe thermistor (R6T) 193J9 9 9 9 Malfunction of the evaporating side gas pipe

temperature thermistor on subcooling heat exchanger (R5T)

194

JA 9 9 9 Malfunction of discharge pipe pressure sensor 195JC 9 9 9 Malfunction of suction pipe pressure sensor 196L0 9 9 9 Inverter system error �L4 9 9 9 Malfunction of inverter radiating fin temperature rise 197L5 9 9 9 Inverter compressor motor grounding, short circuit 198L6 9 9 9 Compressor motor coil grounding or short circuit �L8 9 9 9 Inverter current abnormal 199L9 9 9 9 Inverter start up error 200LA 9 9 9 Malfunction of power unit �LC 9 9 9 Malfunction of transmission between inverter and

control PC board201

P1 9 9 9 Inverter over-ripple protection 203P4 9 9 9 Malfunction of inverter radiating fin temperature rise

sensor204


Troubleshooting 155

System U0 8 7 9 Low pressure drop due to refrigerant shortage or electronic expansion valve failure

205

U1 9 9 9 Reverse phase / open phase 207U2 9 9 9 Power supply insufficient or instantaneous failure 208U3 9 9 9 Check operation is not conducted. 210U4 9 9 9 Malfunction of transmission between indoor and

outside units211

U5 9 9 9 Malfunction of transmission between remote control and indoor unit

213

U5 7 8 7 Failure of remote control PC board or setting during control by remote control

213

U7 9 9 9 Malfunction of transmission between outside units 214U8 9 9 7 Malfunction of transmission between master and

slave remote controls (malfunction of slave remote control)

216

U9 9 9 9 Malfunction of transmission between indoor unit and outside unit in the same system

217

UA 9 9 9 Excessive number of indoor units etc. 219UC 8 8 8 Address duplication of central remote control 220UE 9 9 9 Malfunction of transmission between central remote

control and indoor unit221230

UF 9 9 9 Refrigerant system not set, incompatible wiring / piping

223

UH 9 9 9 Malfunction of system, refrigerant system address undefined

224

Centralized Control

and Schedule

Timer

M1 8 or 7 9 9 PC board defect 225232

M8 8 or 7 9 9 Malfunction of transmission between optional controllers for centralized control

226233

MA 8 or 7 9 9 Improper combination of optional controllers for centralized control

227234

MC 8 or 7 9 9 Address duplication, improper setting 229236

Heat Reclaim

Ventilation

64 8 7 9 Indoor unit�s air thermistor error �65 8 7 9 Outside air thermistor error �68 8 7 9 �6A 8 7 9 Damper system alarm �6A 9 9 9 Damper system + thermistor error �6F 8 7 9 Malfunction of simple remote control �6H 8 7 9 Malfunction of door switch or connector �94 9 9 9 Internal transmission error �

Malfunction code

Operation lamp

Inspection display

Unit No. Malfunction contents Page Referred

The system operates for malfunction codes indicated in black squares, however, be sure to check and repair.


156 Troubleshooting

Malfunction code indication by outdoor unit PCB

<Selection of setting item>

<Confirmation of malfunction 1>

To enter the monitor mode, push the MODE button (BS1) when in “Setting mode 1”.

Push the SET button (BS2) and set the LED display to a setting item.

Push the RETURN button (BS3) once to display "First digit" of malfunction code.


Push the SET button (BS2) once to display "Second digit" of malfunction code.

Push the RETURN button (BS3) and switches to the initial status of “Monitor mode”.

* Push the MODE button (BS1) and returns to “Setting mode 1”.

Contents of malfunction Malfunction code

HPS activated

Abnormal Pe

Detection of INV compressor lock

Instantaneous over current of DC fan motor

Detection of DC fan motor lock

EV1

EV3

Abnormal position signal of DC fan motor

Faulty Ta sensor

Abnormal Td

Refrigerant over charge

Faulty Tdi sensor

Faulty Tg sensor

Faulty Ts sensor

Faulty Tl sensor

Faulty Tsh sensor

Faulty Pc sensor

Faulty Pe sensor

Over heating of inverter radiation fin temperature

Inverter instantaneous over current

Electronic thermal switch 1

Electronic thermal switch 2

Out-of-step

Speed down after startup

Lightening detection

Stall prevention (Current increasing)

Stall prevention (Faulty startup)

Abnormal wave form in startup

Out-of-step

Inverter transmission error

Imbalance of inverter power supply voltage

Faulty thermistor of inverter box

Faulty thermistor of inverter fin

Incorrect combination of inverter and fan driver

Gas shortage alarm

Reverse phase error

Insufficient inverter voltage

Inverter open phase (phase T)

Charging error of capacitor in inverter main circuit

I/O transmission error

O/O transmission error

Indoor unit system malfunction in other system or

other unit of own system

Abnormal connection with excessive number of indoor units

Conflict of refrigerant type in indoor units

Incorrect wiring (Auto address error)

Malfunction of multi level converter, abnormality in

conflict check

E3

E4

E5

E7

E9

H7

H9

HJ

F3

F6

J3

J4

J5

J7

J9

JA

JC

L4

L5

L8

L9

LC

P1

P3

P4

PJ

U0

U1

U2

U3

U4

U7

U9

UA

UH

UJ

UF

Abnormal discharge pressure

Abnormal suction pressure

Compressor lock

Over load, over current,

abnormal lock of outdoor unit fan motor

Malfunction of electronic expansion valve

Abnormal position signal of outside unit fan motor

Faulty sensor of outside air temperature

Abnormality in water system

Abnormal discharge pipe temperature

Abnormal heat exchanger temperature

Faulty sensor of discharge pipe temperature

Faulty sensor of heat exchanger gas pipe thermistor

Faulty sensor of suction pipe temperature

Faulty sensor of receiver temperature

Faulty sensor of subcool heat exchanger temperature

Faulty sensor of discharge pressure

Faulty sensor of suction pressure

Inverter radiation fin temperature rising

DC output over current

Electronic thermal switch

Stall prevention (Limit time)

Transmission error between inverter and outdoor unit

Open phase/Power supply imbalance

Faulty temperature sensor inside switch box

Faulty temperature sensor of inverter radiation fin

Incorrect combination of inverter and fan driver

Gas shortage

Reverse phase

Abnormal power supply voltage

No implementation of test-run

Transmission error between indoor and outdoor unit

Transmission error between outdoor units, transmission error

between thermal storage units, duplication of IC address

Transmission error of other system

Erroneous on-site setting

Faulty system function

Transmission error in accessory devices, conflict

in wiring and piping, no setting for system


Push the SET button (BS2) once to display "master or slave1 or slave2" and "malfunction location".

* Refer P.122 for Monitor mode.

* Refer P.122 for Monitor mode.

Detail description on next page.


Troubleshooting 157

1

Malfunction

code LED1 LED2 LED3 LED4 LED5 LED6 LED7 LED1 LED2 LED3 LED4 LED5 LED6 LED7

Malfunctionlocation

Master

Slave 1

Slave 2

Confirmation of malfunction 1 Confirmation of malfunction 2 Confirmation of malfunction 3

LED1 LED2 LED3 LED4 LED5 LED6 LED7

8 : ON

.: Blink

7 : OFF

8 : ON

.: Blink

7 : OFF

7

7

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7

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7

E3

E4

E5

E7

E9

H7

H9

HJ

F3

F6

J3

J4

J5

J7

J9

JA

JC

L4

L5

L8

L9

LC

P1

P3

P4

PJ

U0

U1

U2

U3

U4

U7

U9

UA

UH

UJ

UF

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Malfunction code 1st digit display section

Malfunction code 2nd digit display section

Troubleshooting by Indication on the Remote Control SiEN30-602

158 Troubleshooting

2. Troubleshooting by Indication on the Remote Control

2.1 �A0� Indoor Unit: Error of External Protection DeviceRemote Control Display

A0

Applicable Models

All indoor unit models

Method of Malfunction Detection

Detect open or short circuit between external input terminals in indoor unit.

Malfunction Decision Conditions

When an open circuit occurs between external input terminals with the remote control set to "external ON/OFF terminal".

Supposed Causes

! Actuation of external protection device! Improper field set! Defect of indoor unit PC board

Troubleshooting

(V2776)

CautionBe sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.

Indoor unit PC board replacement.

Actuation of external protection device.

Change the second code No. to "01" or "02" .

YES

NO

NO

YES

External protection device is

connected to terminals T1 and T2 of the indoor

unit terminal block.

ON/OFF input from

outside (mode No. 12, first code No. 1)

has been set to external protection device input (second code No. 03)

by remotecontrol.

SiEN30-602 Troubleshooting by Indication on the Remote Control

Troubleshooting 159

2.2 �A1� Indoor Unit: PC Board DefectRemote Control Display

A1

Applicable Models



Check data from E²PROM.


When data could not be correctly received from the E²PROME²PROM : Type of nonvolatile memory. Maintains memory contents even when the power supply is turned off.

Supposed Causes

! Defect of indoor unit PC board

Troubleshooting

Turn power supply OFF, then power ON again.

Does the system return to normal?

YES


External factor other than malfunction (for example, noise etc.).Replace the indoor unit PC board.

(V2777)

NO


160 Troubleshooting

2.3 �A3� Indoor Unit: Malfunction of Drain Level Control System (S1L)

Remote Control Display

A3

Applicable Models

FXCQ, FXFQ, FXSQ, FXKQ, FXDQ, FXMQ, FXHQ (Option), FXMQ200·250M (Option), FXAQ (Option)


By float switch OFF detection


When rise of water level is not a condition and the float switch goes OFF.

Supposed Causes

! 220~240V power supply is not provided! Defect of float switch or short circuit connector! Defect of drain pump! Drain clogging, upward slope, etc. ! Defect of indoor unit PC board! Loose connection of connector


Troubleshooting 161

Troubleshooting

(V2778)


Replace float switch.

Modify the float switch's connection and turn on again.

Connect the drain pump and turn on again.

Check the drain piping for clogging or upward slope, etc.

Replace indoor unit PC board.

Replace the drain pump or check for dirt, etc.

Connect either a short circuit connector or float switch and turn on again.

YES

YES

YES

YES

Defect of indoor unit PC board.

Loose connection of connector.

NO NO

NO

YES

YES

NO

NO

YES

NO

YES

NO

NO

NO

A shortcircuit connector is

connected toX8A.

Provide 220~240V power supply.

YES

NO

Becomesnormal when X8A of

the indoor unit PC boardis short circuited

The float switchfunctions normally.

Is power supply 220~240V provided?

Water builds up in the drain pan.

The float switch is

connected to X8A of the indoor unit PC

board.

The drain pump

works when the power supply is reset for the

indoor unit.

The float switch

contact is forming a short circuit (continuity

check with X8A or X15A disconnected)

The voltage of

terminals Y1 and Y2 or X25A is

220~240 V (within 5minutes of resetting the power

supply).

The drain pump is

connected to X25A or terminals Y1 and Y2 of

the indoor unit PC board.


162 Troubleshooting

2.4 �A6� Indoor Unit: Fan Motor (M1F) Lock, OverloadRemote Control Display

A6

Applicable Models

FXDQ, FXHQ


Detection by failure of signal for detecting number of turns to come from the fan motor


When number of turns can�t be detected even when output voltage to the fan is maximum

Supposed Causes

! Fan motor lock! Disconnected or faulty contact between fan motor and PC board

Troubleshooting


Connect the connector correctly.

Check the faulty contact of connector or broken wire etc.

Check for wiring of indoor unit fan motor and motor itself.

Replace the indoor unit PC board.

YES

NO

YES

NO

(V2779)

Disconnect the connectors with power supply and check the voltage between 1 and 3 of connector X4A.

Is the wiring from the fan

motor securely connected to connectors X4A and X27A on the

indoor unit PC board?

Is there APPROX. DC 12

Volt between 1 and 2 pins?


Troubleshooting 163

�A6� Abnormal Indoor Fan MotorRemote Control Display

A6

Applicable Models

FXFQ, FXAQ


Detect abnormal fan rotation with the signal from the fan motor


When fan rotation does not increase

Supposed Causes

! Disconnected/short-circuited fan motor harnesses or disconnected connectors! Faulty fan motor

(Disconnection and insulation failure)! Abnormal signal from the fan motor

(Circuit breakdown)! Faulty PCB! Instantaneous disturbance of power supply voltage! Fan motor lock

(Caused by the motor or external factors)! Fan does not rotate because foreign particles are trapped in it.! Disconnected connector between PCBs A1P and A2P


164 Troubleshooting

Troubleshooting


Remove the foreign particles.

Connect properly.

Replace the fan motor.

∗Refer to the figure in following page.

Replace the fan motor.

NO

YES

NO

YES

NO

YES

NO

YES

Turn off the power supply.

Check the fan motor connector. ∗

Connect properly.

Replace the indoor PCB.

YES

NO

Are there foreign particles around the

fan?

Are the harness from the

fan motor and the harness of A1P fan motor (fixed to

X20A) connected properly?

Can the fan be

removed from the junction connector between the fan motor and A1P and

rotated easily with hands?

Does the resistance

between pins satisfy the judgment criteria?

Are heavy current

PCB (A1P) and low current PCB (A2P) connected

properly?


Troubleshooting 165

[Check on connector of fan motor (Power supply cable)](1)Turn off the power supply.Measure the resistance between phases of U,V,W at the motor side connectors (three-core wire) to check that the values are balanced and there is no short circuiting, while connector or relay connector is disconnected.

Red

White

Black

U

V

W

Measure the resistance values between phases U,V,W.


166 Troubleshooting

2.5 �A7� Indoor Unit: Malfunction of Swing Flap Motor (MA)Remote Control Display

A7

Applicable Models

FXCQ, FXHQ, FXKQ


Utilizes ON/OFF of the limit switch when the motor turns.


When ON/OFF of the microswitch for positioning cannot be reversed even though the swing flap motor is energized for a specified amount of time (about 30 seconds).

Supposed Causes

! Defect of swing motor! Defect of connection cable (power supply and limit switch)! Defect of air flow direction adjusting flap-cam! Defect of indoor unit PC board


Troubleshooting 167

Troubleshooting


Provide 220~240V power supply.

YES

NOIs power supply 220~240V

provided?

Indoor unit is a model equipped

with a swing flap function

The swing motor works

when the power supply is turned off and then

back on.

When the air flow

direction flap's cam mechanism is disconnected

from the swing motor, operation is normal

when turned on again.

After turning the

swing-flap ON and then stopping

with the remote control, the voltage of X6A of the

indoor unit PC board is 220 ~ 240VAC (60 Hz) / 220

VAC(50 Hz) when turnedonagain (within

30 seconds of turning on

again).

The connector is

connected to X9A of the indoor unit PC

board.

The limit switch functions normally.

The connecting cable is short-circuited or

disconnected. Replace the limit switch connecting cable.


Replace the power supply connecting cable.

Replace swing motor.

Take the cam mechanism apart, reassemble and turn on again.

YES

NO

YES

YES

NO

YES

NO

Connect the connector to X9A and turn on again.

Replace indoor unit PC board.NO

NO

YES NO

YES

NO

YES

YES

NOReplace swing motor.

(V2780)

The connecting cable has no continuity.


168 Troubleshooting

2.6 �A9� Indoor Unit: Malfunction of Moving Part of Electronic Expansion Valve (20E)


A9

Applicable Models



Detection by failure of signal for detecting number of turns to come from the fan motor


When number of turns can�t be detected even when output voltage to the fan is maximum

Supposed Causes

! Malfunction of moving part of electronic expansion valve! Defect of indoor unit PC board! Defect of connecting cable

Troubleshooting

(V2781)


After connecting, turn the power supply off and then back on.

Replace the moving part of the electronic expansion valve.

YES

YES

NO

NO

Replace the connecting cable.

If you turn the power supply off and turn on again, and it still does not help, replace the indoor unit PC board.

NO

YES

The electronic

expansion valve is connected to X7A of the

indoor unit PC board.

Normal when coil

check (∗1) of the moving part of the electronic

expansion valve is checked.

The connecting cable is

short-circuited or disconnected.


Troubleshooting 169

∗1: Coil check method for the moving part of the electronic expansion valveDiscount the electronic expansion valve from the PC board and check the continuity between the connector pins.

(Normal)

": Continuity × : No continuity

Pin No. 1. White 2. Yellow 3. Orange 4. Blue 5. Red 6. Brown1. White × "

Approx. 300Ω

× "Approx. 150Ω

×

2. Yellow × " Approx.

300Ω

× "Approx. 150Ω

3. Orange × "Approx. 150Ω

×

4. Blue × "Approx. 150Ω

5. Red ×

6. Brown

M

White (1)

Yellow(2)

Blue(4)

Brown(6)

Red (5)

Orange (3)

φ1

φ2 φ4

φ3

(1) White

(2) Yellow

(3) Orange

(4) Blue

(5) Red

(6) Brown


170 Troubleshooting

2.7 �AF� Indoor Unit: Drain Level above LimitRemote Control Display

AF

Applicable Models

FXCQ, FXFQ, FXSQ, FXKQ, FXMQ, FXDQ


Water leakage is detected based on float switch ON/OFF operation while the compressor is in non-operation.


When the float switch changes from ON to OFF while the compressor is in non-operation.

Supposed Causes

! Humidifier unit (optional accessory) leaking! Defect of drain pipe (upward slope, etc.)! Defect of indoor unit PC board

Troubleshooting


Defect of indoor unit PC board.

Modify the drain piping.YES

NO

NO

Check if the humidifier unit isleaking.

YES

(V2782)

Field drain piping has a defect

such as upward sloping.

A humidifier unit

(optional accessory) is installed on the

indoor unit.


Troubleshooting 171

2.8 �AJ� Indoor Unit: Malfunction of Capacity Determination Device

Remote Control display

AJ

Applicable Models



Capacity is determined according to resistance of the capacity setting adapter and the memory inside the IC memory on the indoor unit PC board, and whether the value is normal or abnormal is determined.


Operation and:1. When the capacity code is not contained in the PC board�s memory, and the capacity setting

adapter is not connected.2. When a capacity that doesn�t exist for that unit is set.

Supposed Causes

! You have forgotten to install the capacity setting adapter.! Defect of indoor unit PC board

Troubleshooting

(V2783)


Install a capacity setting adaptor.

Replace the indoor unit PC board.NO

NO

YES

YES


The indoor unit is

a model that requires installation of a capacity

setting adaptor when replacing the PC

board.

The indoor unit PC board was

replaced with a replacementPC board.


172 Troubleshooting

2.9 �C4� Indoor Unit: Malfunction of Thermistor (R2T) for Heat Exchanger


C4

Applicable Models



Malfunction detection is carried out by temperature detected by heat exchanger thermistor.


When the heat exchanger thermistor becomes disconnected or shorted while the unit is running.

Supposed Causes

! Defect of thermistor (R2T) for liquid pipe ! Defect of indoor unit PC board

Troubleshooting

∗2: Refer to thermistor resistance / temperature characteristics table on P286.

(V2784)



Connect the connector and turn on again.

NO

NO

Replace the thermistor (R2T).

YES

YES

Connector is connected to X12A or X18A of


Resistance is normal when measured after

disconnecting the thermistor (R2T) from the indoorunit

PC board (3.5kΩ~ 360kΩ)


Troubleshooting 173

2.10 �C5� Indoor Unit: Malfunction of Thermistor (R3T) for Gas Pipes


C5

Applicable Models



Malfunction detection is carried out by temperature detected by gas pipe thermistor.


When the gas pipe thermistor becomes disconnected or shorted while the unit is running.

Supposed Causes

! Defect of indoor unit thermistor (R3T) for gas pipe ! Defect of indoor unit PC board

Troubleshooting


(V2785)




NO

NO

Replace the thermistor (R3T).

YES

YES

Connector is connected to X11A or

X14A of the indoor unit PC board.

Resistanceis normal whenmeasured after

disconnecting the thermistor (R3T) from the indoor

unit PC board.(0.6kΩ~360kΩ)


174 Troubleshooting

2.11 �C9� Indoor Unit: Malfunction of Thermistor (R1T) for Suction Air


C9

Applicable Models

AII indoor unit models


Malfunction detection is carried out by temperature detected by suction air temperature thermistor.


When the suction air temperature thermistor becomes disconnected or shorted while the unit is running.

Supposed Causes

! Defect of indoor unit thermistor (R1T) for air inlet! Defect of indoor unit PC board

Troubleshooting





NO

NO

Replace the thermistor R1T.

YES

YES

Connector is connected to X13A or X19A of



disconnecting the thermistor (R1T) from the

indoor unit PC board. (7.2kΩ~112kΩ)

(V2786)


Troubleshooting 175

2.12 �CJ� Indoor Unit: Malfunction of Thermostat Sensor in Remote Control


CJ

Applicable Models

AII indoor unit models


Malfunction detection is carried out by temperature detected by remote control air temperature thermistor. (Note1)


When the remote control air temperature thermistor becomes disconnected or shorted while the unit is running.

Supposed Causes

! Defect of remote control thermistor! Defect of remote control PC board

Troubleshooting

Note: In case of remote control thermistor malfunction, unit is still operable by suction air thermistor on indoor unit.


Turn power supply OFF, then power ON again.

YES


Is "CJ" displayed on the remote control? Replace remote controller.

External factor other than equipment malfunction.(for example, noise etc.)

(V2787)

NO


176 Troubleshooting

2.13 �E1� Outside Unit: PC Board DefectRemote Control Display

E1

Applicable Models

RWEYQ10MYL, TL


Detect abnormalities by checking communication status of the hard part between the indoor unit and outside unit.


When communication status of the hard part between the indoor unit and heat source unit is abnormal

Supposed Causes

! Faulty main PCB! Faulty communication part (photo coupler) on the main PCB

Troubleshooting

Turn off the power supply once and then turn it on again.

YES

YES


Does it return normally?

Foreign particles (electrically

conductive) are attached on the terminal (X1M) of

the main PCB.

Remove the foreign particles (electrically conductive) and restart operation.

Replace the heat source main PCB.

Check the following parts and continue operation• Check noise, etc.• Check whether foreign

particles (electrically conductive) attach to the terminal of the main PCB (X1M).

NO

NO


Troubleshooting 177

2.14 �E3� Outside Unit: Actuation of High Pressure SwitchRemote Control Display

E3

Applicable Models

RWEYQ10MYL, TL


Detect conductive property of the high pressure switch with the protector circuit.


When the protector circuit is partially opened(For reference) Working pressure for the high pressure switch

Working pressure: 4.0 MPaReturn pressure: 2.85 MPa

Supposed Causes

! High pressure switch operation! Faulty high pressure switch! Faulty main PCB! Temporal power failure! Faulty high pressure sensor! Insufficient heat source water! Dirty water heat exchanger


178 Troubleshooting

Troubleshooting

NO

YES

YES

Replace the HPS.

Improve defects.

Replace the high pressure sensor.

Replace the main PCB.

YES

NO

NO

YES

NO

YES

NO

Red

+5V

Microcomputer A/D input

Black

White

(4)

(3)

(1)

• Set up a pressure gauge in the high pressure service port.• Connect the Service Checker.• Restart operation after resetting operation with a remote

control.

Measure the voltage (DC) between these two points.

• The high pressure sensor is normal and the main PCB pressure detection is also normal.

• In fact, high pressure is rising.

CHECK 1 : Refer to page 243 to eliminate the causes of high pressure rise.

∗1 : Compare the pressure sensor voltage measurements with pressure gauge readings. (For the pressure sensor, voltage is measured at the connector and converted to pressure in accordance with page 288.)

∗2 : Compare “high pressure” checked with the Service Checker with pressure sensor voltage measurements (refer to ∗1).

∗3 : Measure the voltage of the pressure sensor.

(2)

HP

pre

ssur

e se

nsor

Connector for high pressure sensor (red)


Check the following items:1 Is the stop valve open?2 Is the connector for HPS properly connected

to the main PCB?3 Is the high pressure switch electrically

conductive?

Are all of the above conditions

satisfied?

Can the emergency stop (E3)

be repeated?

Is PCB detector pressure

normal? (∗2)

Are high pressure sensor characteristics normal? (∗1)

Is HPS working value (4.0

MPa) normal?


Troubleshooting 179

2.15 �E4� Outside Unit: Actuation of Low Pressure SensorRemote Control Display

E4

Applicable Models

RWEYQ10MYL, TL


Judge the pressure detected by a low pressure sensor with the main PCB.


When low pressure drops while the compressor is in operationWorking pressure: 0.07 MPa (Retry: 3 times)

Supposed Causes

! Abnormal low pressure drop! Faulty low pressure sensor! Faulty main PCB! The stop valve left closed! Insufficient heat source water! Dirty water heat exchanger


180 Troubleshooting

Troubleshooting

YES

NO

NO

YES

NO

YES


1 Set up a pressure gauge in the low pressure service port.

2 Connect the Service Checker.3 Restart operation after resetting operation.

Is the stop valve opened?

• The low pressure sensor is normal and the main PCB pressuredetection is also normal.

• In fact, low pressure is dropping.

Are low pressure sensor characteristics normal? (∗1)

Is PCB detector pressure

normal? (∗2)Replace the main PCB.

Replace the low pressure sensor.

Open the stop valve.

∗1 : Compare the pressure sensor voltage measurements with pressure gauge readings. (For the pressure sensor, voltage is measured at the connector and converted to pressure in accordance with page 288.)

∗2 : Compare “low pressure” measured with the Service Checker with pressure sensor voltage measurements (refer to ∗1).

∗3 : Measure the voltage of the pressure sensor.

: Refer to page 244 to eliminate the causes of low pressure drop.CHECK 2

+5V

(4)

(3)

(1)

(2)Microcomputer A/D input

Measure the voltage (DC) between these two points.

Red

Black

White

LP p

ress

ure

sens

or

Connector for low pressure sensor (Blue)


Troubleshooting 181

2.16 �E5� Compressor Motor LockRemote Control Display

E5

Applicable Models

RWEYQ10MYL, TL


Pick up the location signal using the inverter PCB from the UVWN line connected between the inverter and the compressor and detect location signal pattern.


In normal operation, location signal for a triple cycle of frequency applied, while in locked operation, it is a double cycle, and they are detected.(Retry twice/60 minutes)

Supposed Causes

! Inverter compressor lock! High differential pressure (0.5 MPa or more)! Incorrect UVWN wire connection ! Faulty inverter PCB! Stop valve left closed


182 Troubleshooting

Troubleshooting

YES

NO

NO

YES

YES

NO


Is the UVWN wire connection

proper?

Is it a high differential

pressure at the time of start-up (0.5 MPa or

more)? (∗1)

The inverter compressor operates

normally.

Inverter output voltage

among 3 phases is within ±5V for TL power

supply and ±10V for YL power

supply.

Restart operation after resetting operation.

Disconnect the connection between the compressor and the inverter and turn on power transistor check mode setting using “Setting Mode 2” on the outside unit PCB.

Measure inverter output voltage.Note: Take measurements while

frequency is stable.

Eliminate the causes.The hot gas bypass valve may not be opened. Check it.

NO

YES

Replace the compressor.

NOReplace the inverter PCB.

YESReplace the inverter compressor.

Open the stop valve.

∗1 : Difference in pressure between high and low pressures before start-up∗2 : The quality of the power transistor diode module can be assessed also by means of

measurement of resistance between terminals (page 289, 290).

Is the stop valve opened?

Connect properly.


Troubleshooting 183

2.17 �E9� Outside Unit: Malfunction of Moving Part of Electronic Expansion Valve (Y1E, Y3E)


E9

Applicable Models

RWEYQ10MYL, TL


Check disconnection of connectorCheck continuity of expansion valve coil


Error is generated under no common power supply when the power is on.

Supposed Causes

! Defect of moving part of electronic expansion valve! Defect of outside unit PC board (A1P)! Defect of connecting cable

Troubleshooting

(V3067)

YES


Return to normal?

Turn power supply off, and turn power supply on again.

Electronic expansion valve is

connected to X26A and X28A of outside unit PC

board (A1P).

Normal when coil check

(∗1) of the moving part of the electronic expansion valve is

checked.

The connecting cable is short-circuited or

disconnected.

Replace the connecting cable.

Replace outside unit PC board A1P.

NO

NO

NO

NO

Replace the moving part of the electronic expansion valve.

External factor other than malfunction (for example, noise etc.).

After connecting, turn the power off and then back on again.

YES

YES

YES


184 Troubleshooting

∗1: Coil check method for the moving part of the electronic expansion valveDiscount the electronic expansion valve from the PC board and check the continuity between the connector pins.

(Normal)

": Continuity × : No continuity

Pin No. 1. White 2. Yellow 3. Orange 4. Blue 5. Red 6. Brown1. White × "

Approx. 300Ω

× "Approx. 150Ω

×

2. Yellow × " Approx.

300Ω

× "Approx. 150Ω

3. Orange × "Approx. 150Ω

×

4. Blue × "Approx. 150Ω

5. Red ×

6. Brown

M

White (1)

Yellow(2)

Blue(4)

Brown(6)

Red (5)

Orange (3)

φ1

φ2 φ4

φ3

(1) White

(2) Yellow

(3) Orange

(4) Blue

(5) Red

(6) Brown


Troubleshooting 185

2.18 �F3� Outside Unit: Abnormal Discharge Pipe TemperatureRemote Control Display

F3

Applicable Models

RWEYQ10MYL, TL


Abnormality is detected according to the temperature detected by the discharge pipe temperature sensor.


! When the discharge pipe temperature rises to an abnormally high level (over 135°C)! When the discharge pipe temperature rises suddenly (over 120°C continues 10 min.)

Supposed Causes

! Faulty discharge pipe temperature sensor! Faulty connection of discharge pipe temperature sensor! Faulty outdside unit PC board

Troubleshooting

Connect the Service Checker.Restart operation after resetting operation.

∗1: Compare the resistance values of the discharge pipe thermistor with measurements of a surface thermometer. (For temperature and resistance characteristics of a thermistor, refer to page 286, 287.)

∗2: Compare the discharge pipe temperature checked by the Service Checker with the resistance of the thermistor (refer to ∗1).

• The discharge pipe thermistor is normal and the main PCB temperature detection is also normal.

• In fact, discharge pipe temperature is rising.

: Refer to page 245 to eliminate the causes of overheat operation.

CHECK 3

Is PCB detection

temperature normal?(∗2)

Replace the main PCB.NO

YES

Replace the discharge pipe thermistor.

YES

NO

Are discharge pipe

thermistor characteristics normal? (∗1)



186 Troubleshooting

2.19 �F6� Refrigerant OverchargedRemote Control Display

F6

Applicable Models

RWEYQ10MYL, TL


Detect excessive charging of refrigerant using suction pipe temperature and subcooling heat exchanger outlet temperature during check operation.


When the suction pipe temperature and the subcooling heat exchanger outlet temperature during check operation drop and become below the evaporation temperature

Supposed Causes

! Excessive refrigerant charging! Suction pipe thermistor removed! Subcooling heat exchanger outlet thermistor removed


Troubleshooting 187

Troubleshooting


YES

YES

YES

NO

NO

NO

∗1: For thermistor temperature and resistance characteristics, refer to page 286, 287.

• There is a possibility that there are other causes of refrigerant overfilling.

: Refer to page 246 to eliminate the causes of wet operation.

CHECK 4

Mount the thermistor properly before operation.

Replace the thermistor if it functions abnormally before operation.

Continue operation.

Check the mounting condition of the suction pipe thermistor and the subcooling heat exchanger outlet thermistor temperature sensor mounted to piping.

Remove the suction pipe thermistor and the subcooling heat exchanger outlet thermistor from the outside unit PCB and measure the resistance with a tester.

Carry out check operation again.

Is the thermistor mounted properly?

Does it function normally? (∗1)

Does the abnormal code (F6) repeat?


188 Troubleshooting

2.20 �HJ� Malfunction of Water systemRemote Control Display

HJ

Applicable Models

RWEYQ10MYL, TL


! Detect abnormalities using the thermistor on the side of the heat exchanger gas. ! Detect turned off interlock circuit.(When interlock setting is provided.)


! When temperature on the heat exchanger gas side (R4T) drops remarkably with the smallest operation step (52 Hz) of the compressor

! With interlock setting provided, when interlock circuit is turned off.

Supposed Causes

! Clogged water piping system! Insufficient heat exchanger water! Dirty heat exchanger! Disconnected connector! Faulty thermistor on the heat exchanger gas side! Faulty low pressure sensor


Troubleshooting 189

Troubleshooting


Replace the main PCB.YES

NO

YES

Secure enough water.

Remove the clog.

NO

NOReplace the inverter PCB.

NO Replace the thermistor/sensor if any of its characteristics are abnormal.

YESClean the heat exchanger.

YES

NO

Disconnect the connection between the compressor and the inverter and turn on the power transistor check mode setting using “Setting Mode 2” on the outside PCB.

Measure the output voltage of the inverter.Note: Take measurements while


NOConnect the connector properly.

YES

∗1 : For thermistor/sensor characteristics, refer to page 286, 287.∗2 : The quality of the power transistor diode module can be assessed by means of

measurement of resistance between terminals (page 289, 290).

(*2)

Clogged water piping system (mixing in of foreign particles,

solenoid valve for water use)

Is the amount of water of heat exchanger 50

l/minute or more?

Is the heat exchanger dirty?

Is the connection

between the thermistor on the heat exchanger gas side

(R4T) and the low pressure sensor (S1NPL)

proper?

Are characteristics of

the thermistor on the heat exchanger gas side (R4T) and the

low pressure sensor (S1NPL) normal?

(∗1)

The output voltage

among three phases is within ±5V for TL power supply

and ±10V for YL power supply.


190 Troubleshooting

2.21 �J3� Outside Unit: Malfunction of Discharge Pipe Thermistor (R3T)


J3

Applicable Models

RWEYQ10MYL, TL


Malfunction is detected from the temperature detected by discharge pipe temperature thermistor.


When a short circuit or an open circuit in the discharge pipe temperature thermistor is detected.

Supposed Causes

! Defect of thermistor (R3T) for outside unit discharge pipe! Defect of outside unit PC board (A1P)

Troubleshooting

(V3072)




NO

NO

Replace the thermistor (R3T)

YES

YES

Connector is connected to X34A of outside unit

PC board (A1P).


disconnecting the thermistor R3T from the outside unit PC board.

(3.5kΩ~400kΩ)


Troubleshooting 191

2.22 �J4� Malfunction of Heat Exchanger Gas Pipe Thermistor (R4T)


J4

Applicable Models

RWEYQ10MYL, TL


Malfunction is detected according to the temperature detected by heat exchanger gas pipe thermistor.


When the heat exchanger gas pipe thermistor is short circuited or open.

Supposed Causes

! Faulty heat exchanger gas pipe thermistor (R4T)! Faulty outside unit PC board

Troubleshooting

∗2: Refer to thermistor resistance / temperature characteristics table on P.286.

(V3075)


Replace outside unit PC board (A1P).

Connect the connector and operate unit again.

NO

NO

Replace thermistor (R4T).

YES

YES

Is the connector for heat

exchanger gas pipe thermistor connected to

X37A on outside unit PC board (A1P)?

Is the resistance

measured after removing the thermistor

(R4T) from outside unit PC board normal? (3.5 kΩ

to 360 kΩ)


192 Troubleshooting

2.23 �J5� Outside Unit: Malfunction of Thermistor (R2T) for Suction Pipe


J5

Applicable Models

RWEYQ10MYL, TL


Malfunction is detected from the temperature detected by the suction pipe temperature thermistor.


When a short circuit or an open circuit in the suction pipe temperature thermistor is detected.

Supposed Causes

! Defect of thermistor (R2T) for outside unit suction pipe! Defect of outside unit PC board (A1P)

Troubleshooting


(V3073)



disconnecting the thermistor (R2T) from the outside unit

PC board. (3.5kΩ ~360kΩ)



NO

NO

Replace the thermistor R2T.

YES

YES

Connector is connected to X37A, of outside unit PC board.

(A1P)


Troubleshooting 193

2.24 �J7� Malfunction of Liquid Pipe Thermistor (R6T)Remote Control Display

J7

Applicable Models

RWEYQ10MYL, TL


Malfunction is detected according to the temperature detected by receiver outlet liquid pipe thermistor.


When the liquid pipe thermistor is short circuited or open.

Supposed Causes

! Faulty liquid pipe thermistor (R6T)! Faulty outside unit PC board

Troubleshooting


(V3075)




NO

NO


YES

YES

Is the connector for receiver outlet

liquid pipe thermistor connected to X37A on outside unit PC board

(A1P)?

Is the resistance


(R6T) from outside unit PC board normal? (3.5 kΩ

to 360 kΩ)


194 Troubleshooting

2.25 �J9� Malfunction of Sub Cooling Heat Exchanger Outlet Thermistor (R5T)


J9

Applicable Models

RWEYQ10MYL, TL


Malfunction is detected according to the temperature detected by sub cooling heat exchanger outlet thermistor.


When the sub cooling heat exchanger outlet thermistor is short circuited or open.

Supposed Causes

! Faulty receiver gas pipe thermistor (R5T)! Faulty outside unit PC board

Troubleshooting


(V3075)




NO

NO


YES

YES

Is the connector for

oil equalizing pipe thermistor connected to

X37A on outside unit PC board (A1P)?

Is the resistance


(R5T) from outside unit PC board normal? (3.5

kΩ to 360 kΩ)


Troubleshooting 195

2.26 �JA� Outside Unit: Malfunction of Discharge Pipe Pressure Sensor


JA

Applicable Models

RWEYQ10MYL, TL


Malfunction is detected from the pressure detected by the high pressure sensor.


When the discharge pipe pressure sensor is short circuit or open circuit.

Supposed Causes

! Defect of high pressure sensor system! Connection of low pressure sensor with wrong connection. ! Defect of outside unit PC board.

Troubleshooting

∗1: Voltage measurement point

∗2: Refer to pressure sensor, pressure / voltage characteristics table on P288.

(V2806)


Replace the high pressure sensor.

Connect the high pressure sensor and turn on again.

NO

NO


YES

YES

The high pressure sensor is

connected to X46A of outside unit PC board

(A1P).

The relationship

between the ∗1 VH and high pressure

is normal (see ∗2) when voltage is measured between

X46A pins (1) and (3) of outside unit PC board

(A1P)(see ∗1).

Outside unit PC board A2P+5V

X46A

Red

Black

White

GND

*2 Measure DC voltage here.

Low

pre

ssur

e se

nsor

MicrocomputerA/D input

4

3

2

1


196 Troubleshooting

2.27 �JC� Outside Unit: Malfunction of Suction Pipe Pressure Sensor


JC

Applicable Models

RWEYQ10MYL, TL


Malfunction is detected from pressure detected by low pressure sensor.


When the suction pipe pressure sensor is short circuit or open circuit.

Supposed Causes

! Defect of low pressure sensor system! Connection of high pressure sensor with wrong connection. ! Defect of outside unit PC board.

Troubleshooting

∗1: Voltage measurement point

∗2: Refer to pressure sensor, pressure/voltage characteristics table on P288.

(V2808)


The relationship

between the ∗1 VH and low pressure is

normal (see ∗2) when voltage is measured between X45A pins

(2) and (3) of outside unit PC board (A1P)

(see ∗1).


Connect low pressure sensor property and restart system.

NO

NO


YES

YES

The low pressure sensor is

connected to X45A (blue) of outside unit PC board

(A1P).


X45A

Red

Black

White

GND

*2 Measure voltage here.

Low

pre

ssur

e se

nsor



X45A

Red

Black

White

GND

*2 Measure DC voltage here.

Low

pre

ssur

e se

nsor


4

3

2

1

(V2809)


Troubleshooting 197

2.28 �L4� Outside Unit: Malfunction of Inverter Radiating Fin Temperature Rise (R1T)


L4

Applicable Models

RWEYQ10MYL, TL


Fin temperature is detected by the thermistor of the radiation fin.


When the temperature of the inverter radiation fin increases above 98°C.

Supposed Causes

! Actuation of fin thermal (Actuates above 98°C)! Defect of inverter PC board! Defect of fin thermistor

Troubleshooting


(V2811)

Defect of power unit radiation.• Intake port is clogged• Radiator fin is dirty• Outdoor temperature is highNO

Replace the thermistor.

YES

Abnormal

Is reset possible?

Reset and operate.

Normal

Replace the inverter PC boardNO

YES

Temperature of the radiator fin rises.

Actuates at min. 98 °C

Resistance check of the radiator fin

thermistor



198 Troubleshooting

2.29 �L5� Outside Unit: Inverter Compressor AbnormalRemote Control Display

L5

Applicable Models

RWEYQ10MYL, TL


Malfunction is detected from current flowing in the power transistor.


When an excessive current flows in the power transistor.(Instantaneous overcurrent also causes activation.)

Supposed Causes

! Defect of compressor coil (disconnected, defective insulation)! Compressor start-up malfunction (mechanical lock)! Defect of inverter PC board

Troubleshooting Compressor inspection

Higher voltage than actual is displayed when the inverter output voltage is checked by tester.

(V2812)


Inverter output

voltage check Inverter output voltage is

not balanced. (Normal if within ±10V for YL power supply and ±5V

for TL power supply ) Must be measured when



Compressor inspectionInspect according to the diagnosis procedure for odd noises, vibration and operating status of the compressor.

NO

Replace the inverter unit.

YES

YES

Correct power supply.YES

The compressor's coil

is disconnected or the insulation is defective.

There is instantenious power drop.

NO

NO

Disconnect the connection between the compressor and inverter. Make the power transistor check mode setting ON by service mode.


Troubleshooting 199

2.30 �L8� Outside Unit: Inverter Current AbnormalRemote Control Display

L8

Applicable Models

RWEYQ10MYL, TL


Malfunction is detected by current flowing in the power transistor.


When overload in the compressor is detected.

Supposed Causes

! Compressor overload! Compressor coil disconnected! Defect of inverter PC board

Troubleshooting Output current check


(V2813)



check Inverter output voltage is not balanced.

(Normal if within ±10V for YL power supply and ±5V for TL

power supply ) Must be measured when


Compressor overloadInspection of the compressor and refrigerant system is required.


NO

Replace the inverter PC board.

YES

NO

Reset and restart.NO

The secondary current

of the inverter is higher than 16.5A (YL power supply) and 25.1 A

(TL power supply) for each phase.


NO

YESCompressor

inspection The compressor's coil is

disconnected.

YES

YES

Disconnect the the connection between the compressor and inverter. Make the power transistor check mode setting ON by service mode.

After turning on again, "L8" blinks

again.


200 Troubleshooting

2.31 �L9� Outside Unit: Inverter Start up ErrorRemote Control Display

L9

Applicable Models

RWEYQ10MYL, TL


Malfunction is detected from current flowing in the power transistor.


When overload in the compressor is detected during startup

Supposed Causes

! Defect of compressor! Pressure differential start! Defect of inverter PC board

Troubleshooting



check Inverter output voltage is not balanced.

(Normal if within ±10V for YL power supply and ±5V for TL

power supply ) Must be measured when



Unsatisfactory pressure equalizationCheck refrigerant system.


YES

Replace the inverter PC board

NO

NO

Reset and restart.NO

The difference

between high and low pressure when starting is

above 0.2MPa.

YES

YES

Disconnect the connection between the compressor and inverter. Make the power transistor check mode ON by service mode.

After turning on again, "L9" blinks

again.

(V2814)


Troubleshooting 201

2.32 �LC� Outside Unit: Malfunction of Transmission Between Inverter and Control PC Board


LC

Applicable Models

RWEYQ10MYL, TL


Check the communication state between inverter PC board and control PC board by micro-computer.


When the correct communication is not conducted in certain period.

Supposed Causes

! Malfunction of connection between the inverter PC board and outside unit control PC board! Defect of outside unit control PC board (transmission section)! Defect of inverter PC board! Defect of noise filter! External factor (Noise etc.)


202 Troubleshooting

Troubleshooting

(V2815)


The transmission

wiring between the outside unit PC board

inverter unit is disconnected.

YES

Fix the disconnection and turn on again.

Connect transmission wiring and turn on again.

NO

YES

The microcomputer

monitor (green) on the inverter P.C.B is

blinking.

The voltage between

two pins of X1A on the inverter unit is 220 ~

240 V.

Defect of outside unit main PC board or defect of inverter PC board.

Check the noise filter (Z1F) for disconnection, and check the power supply wiring of the inverter PC board.

Replace inverter PC board.

When the LC malfunction occur again, replace control PC board.

YES

NO

NO

YES

NO

Are the connectors

between the main PC board (A1P), and

inverter PC board (A2P) connected securely?


Troubleshooting 203

2.33 �P1� Outside Unit: Inverter Over-Ripple ProtectionRemote Control Display

P1

Applicable Models

RWEYQ10MYL, TL


Imbalance in supply voltage is detected in PC board.


When the resistance value of thermistor becomes a value equivalent to open or short circuited status.! Malfunction is not decided while the unit operation is continued.

"P1" will be displayed by pressing the inspection button.

Supposed Causes

! Open phase! Voltage imbalance between phases! Defect of main circuit capacitor! Defect of inverter PC board! Defect of K1M! Improper main circuit wiring

Troubleshooting

(V2816)


Is the

voltage imbalance applied to the inverter in

excess of 14 V (YL) and 10V (TL)?

∗2

NO

Part or wiring defectAfter turning the power supply OFF, check and repair the main circuit wiring or parts.(1) Loose or disconnected

wiring between power supply and inverter

(2) K1M contact disposition, fusion or contact is poor.

(3) Loose or disconnected noise filter

Using a device capable of constant recording of power supply voltage record power supply voltage between 3 phases (L1 ~ L2, L2 ~ L3, L3~L1) for about one continuous week.

Open phaseNormalize field cause.

Power supply voltage imbalance

Explanation for users

Fix power supply voltage imbalance.

YES

YES

NO

Imbalance in supplied voltage

is in excess of 14 V (YL) and 10V (TL). ∗1

Open phase?

<When voltage monitoring is possible:>

∗1. Measure voltage at the X1M power supply terminal block.

∗2. Measure voltage at terminals L1, L2 and L3 of the diode module inside the inverter while the compressor is running.

∗In accordance with "notification of inspection results" accompanying spare parts.

Give the user a copy of "notification of inspection results"and leave it up to him to improve the imbalance.

Be sure to explain to the user that there is a "power supply imbalance" for which DAIKIN is not responsible.

measure

YES

NO


204 Troubleshooting

2.34 �P4� Outside Unit: Malfunction of Inverter Radiating Fin Temperature Sensor


P4

Applicable Models

RWEYQ10MYL, TL


Resistance of radiation fin thermistor is detected when the compressor is not operating.


When the resistance value of thermistor becomes a value equivalent to open or short circuited status.! Malfunction is not decided while the unit operation is continued.

"P4" will be displayed by pressing the inspection button.

Supposed Causes

! Defect of radiator fin temperature sensor! Defect of inverter PC board

Troubleshooting


(V2818)

After resetting, restart.

YES

YES

Is the resistance of

thermistor correct?

Is the resetting possible?

Replace inverter PC board.(Thermistor can not be removed from inverter PC board)

Measure the resistance of radiation fin thermistor.

NO

Replace inverter PC board.NO



Troubleshooting 205

2.35 �UO� Low Pressure Drop Due to Refrigerant Shortage or Electronic Expansion Valve Failure


U0

Applicable Models

RWEYQ10MYL, TL


Detect insufficient gas using low pressure or difference in temperature between the suction pipe and the heat exchanger.


In cooling! Low pressure of 0.25 MPa or less continues for 30 minutesIn heating! Suction gas superheated degree of 20°C or more continues for 60 minutes.∗ Abnormality is not confirmed and operation is continued.

Supposed Causes

! Insufficient gas or clogged refrigerant (wrong piping)! Faulty thermistor (R2T, R4T)! Faulty low pressure sensor! Faulty main PCB(A1P)


206 Troubleshooting

Troubleshooting

NO

NO

1 Set up a pressure gauge in the service port on the low pressure side.2 Connect the Service Checker.3 Reset operation with a remote controller and restart operation.

Are the low pressure

sensor characteristics normal? (∗1)

Is the PCB

detector pressure normal? (∗2)



∗1 : Compare pressure sensor measurements with pressure gauge readings. (For measurements by a pressure sensor, measure voltage between connectors (2) and (3) and convert it to pressure in accordance with page 288.)

∗2 : Compare low pressure measured by the Service Checker with pressure sensor measurements (refer to ∗1).

CHECK 2 : Refer to page 244 to eliminate the causes of low pressure drop.

In cooling

NO

NO

1 Connect the Service Checker.2 After resetting operation with a remote

control, restart operation.

Is PCB detection temperature

normal?(∗4)


Replace the thermistor.

∗3 : Compare the thermistor resistance with surface thermostat measurements.∗4 : Compare the suction pipe temperature checked by the Service Checker with

measurements obtained in ∗3 above.

In heating

Are characteristics of

the suction pipe thermistor (R2T) and the heat exchanger

thermistor (R4T) normal?

(∗3)

CHECK 3 : Refer to page 245 to eliminate the causes of overheat operation.



Troubleshooting 207

2.36 �U1� Reverse Phase, Open PhaseRemote Control Display

U1

Applicable Models

RWEYQ10MYL, TL


The phase of each phase are detected by reverse phase detection circuit and right phase or reverse phase are judged.


When a significant phase difference is made between phases.

Supposed Causes

! Power supply reverse phase! Power supply open phase! Defect of outside PC board A1P

Troubleshooting

(V2820)

Operation is normal if one

place of power supply line phase is replaced.

Fix the open phase. Requires inspection of field power supply section.

Reverse phaseCounter measure of the problem is completed by phase replacement.


YES

YES

NO

NO

There is an open phase at

the power supply terminal section (X1M) of the

outside unit.



208 Troubleshooting

2.37 �U2� Power Supply Insufficient or Instantaneous FailureRemote Control Display

U2

Applicable Models

RWEYQ10MYL, TL


Detection of voltage of main circuit capacitor built in the inverter and power supply voltage.


When the capacitor above only has a voltage of 360 V or less (YL) and 210V or less (TL).

Supposed Causes

! Power supply insufficient! Instantaneous failure! Open phase! Defect of inverter PC board! Defect of outside control PC board! Defect of K1M. ! Main circuit wiring defect


Troubleshooting 209

Troubleshooting

(V2821)

Replace K1M.

Repair wiring.

NO

NO

NO

Turn on again.

Replace the outside unit PC board (A1P).

YES

YES

YES

Turn K1M ON.YES

NO

Is 220 ~ 240 V of power reaching the

K1M coil?

Is 220 ~ 240 V

at the connector X1A of inverter PC board.



YES

NO

NO

Does the voltage

between terminals P2(or P3) and N3 gradually

rise to 556 VDC (YL) or 283 VDC (TL)after

turning on?

Monitor field power supply.


The voltage between

the P2 (or P3) and N3 terminals is 320 VDC (YL) or more and 190 VDC (TL) or

less when the compressor is

running.

Is connection wire

connected between the connector X21A and X6A?

YES

NOIs

220 ~ 240 V at the connector X1A of

outside PC board side?

Check the transmission wiring between the outside unit PC board and inverter unit.

YES



210 Troubleshooting

2.38 �U3� Check Operation not ExecutedRemote Control Display

U3

Applicable Models

RWEYQ10MYL, TL


Check operation is executed or not


Malfunction is decided when the unit starts operation without check operation.

Supposed Causes

! Check operation is not executed.

Troubleshooting

(V3052)

Has the check operation

performed on Outside unit P.C.B?

Press the BS4 on P.C. board on the master outside unit for 5 seconds or more to execute check operation.

Replace the main P.C. board on the outside unit.

NO

YES



Troubleshooting 211

2.39 �U4� Malfunction of Transmission Between Indoor UnitsRemote Control Display

U4

Applicable Models

All model of indoor unitRWEYQ10MYL, TL


Microcomputer checks if transmission between indoor and outside units is normal.


When transmission is not carried out normally for a certain amount of time

Supposed Causes

! Indoor to outdoor, outside to outside unit transmission wiring F1, F2 disconnection, short circuit or wrong wiring

! Outside unit power supply is OFF! System address doesn�t match! Defect of indoor unit PC board! Defect of outside unit PC board


212 Troubleshooting

Troubleshooting

(V2822)


Is indoor - outside unit and

outside unit - outside unit transmission wiring

normal?

Supply 220~240 V.

Replace the fuse.

Fix the indoor/outside unit transmission wiring.

Push and hold the RESET button on the outside unit PC board for 5 seconds.

Replace the outside unit PC Board (A1P).

YES

YES

NO

YES

Replace the indoor unit PC Board.

Push and hold the RESET button on the master outside unit PC Board for 5 seconds.∗ The unit will not operate

for up to 12 minutes.

Fix the indoor/outside unit transmission wiring.

YES

NO

NO

YES

Has the indoor

or outside unit PC board been

replaced, or has the indoor - outside or outside - outside

unit transmission wiring been modified?

Allindoor unit

remote controllers of thesame refrigerant system

display"U4."

NOOutside unit

PC board microcomputer monitor (HAP) blinks.

NO

NO

NO Operation ready lamp (H2P) is

blinking.

Lamp does not go off for 12 minutes or

more.

Is indoor - outdoor and outside

-outside unit transmission wiring normal?

YESThe fuse on the outside unit's PC board is

burnt.

Replace the transformer. replacement

Replace outside unit PC board. (A1P)

NOThe secondary voltage of the transformer

is about 22 V.

NO

The voltage between

terminals L1 and N of the outside unit PC board

is 220~240 V.

Reset the power supply.

YES

YESYES

NO

YES


Troubleshooting 213

2.40 �U5� Malfunction of Transmission Between Remote Control and Indoor Unit


U5

Applicable Models

All models of indoor units


In case of controlling with 2-remote control, check the system using microcomputer is signal transmission between indoor unit and remote control (main and sub) is normal.


Normal transmission does not continue for specified period.

Supposed Causes

! Malfunction of indoor unit remote control transmission ! Connection of two main remote controls (when using 2 remote controls)! Defect of indoor unit PC board! Defect of remote control PC board! Malfunction of transmission caused by noise

Troubleshooting


(V2823)

NO

YES YES

NO


Set one remote controller to "SLAVE"; turn the power supply off once and then back on.

There is possibility of malfunction caused by noise. Check the surrounding area and turn on again.

NO NO

Using 2-remote controls control.

All indoor PC board microcomputer

monitors blink.

YESMulti-core

cable is used for the indoor unit remote controller transmission

wiring.

Operation returns to normal when the power is turned off

momentarily.

YES YESSS1 of both remote controls is set to

"MASTER."

NO

Switch to double-core independent cable. replacement

Defect of remote controller PC board or indoor unit PC board. Replace whichever is defective.


214 Troubleshooting

2.41 �U7� Malfunction of Transmission Between Outside UnitsRemote Control Display

U7

Applicable Models

RWEYQ 10MTL/YL


Microcomputer checks if transmission between indoor unit and remote control is normal.



Supposed Causes

! Improper connection of transmission wiring between outside unit and external control adapter for outdoor unit.

! Improper cool/heat selection ! Improper cool/heat unified address (outside unit, external control adapter for outdoor unit)! Defect of outside unit PC board (A1P)! Defect of external control adapter for outdoor unit! Improper connection of transmission wiring between outside units of multi outside unit

connection.


Troubleshooting 215

Troubleshooting

(V2824)


NO

Replace the outside unit PC Board (A1P).

YESC/H SELECT is set to "IND".

Cool / heat selection is unified.

C/H SELECT is set to "MASTER."

NO

C/H SELECT is set to "SLAVE."

YES NOCheck and see if the following items are

normal.

NODoes a

malfunction occur when the cool / heat selector is

set to "IND?"

YES

Set C/H SELECT to "IND."

YES

Fix the outside units multi connection transmission wiring and reset power.

NOIs the outside units multi connection transmission wiring

normal?

Is the indoor /

outside unit transmission wiring normal?

NO

YES

Fix the indior / outside unit transmission wiring.

The cool / heat unified address for outside units in outside - outside unit transmission is duplicated. Set the address correctly.

YES

NO

NO

YES

YES

Replace the outside unit outside control adaptor. replacement

Replace the outside unit PC board (A1P).

External control adaptor for outdoor unit•Is there continuity?•Does the cool/heat unified address match?Outside unit (unified master unit)•Is there continuity?•Does the cool/heat unified address match?

Fix the problem.


216 Troubleshooting

2.42 �U8� Malfunction of Transmission Between Master and Slave Remote Controls


U8

Applicable Models



In case of controlling with 2-remote control, check the system using microcomputer if signal transmission between indoor unit and remote control (main and sub) is normal.


Normal transmission does not continue for specified period.

Supposed Causes

! Malfunction of transmission between main and sub remote control! Connection between sub remote controls! Defect of remote control PC board

Troubleshooting


(V2825)

SS1 of both remote controllers is set to

"SUB."

Set SS1 to "MAIN"; the power supply off once and then back on.

Set one remote controller to "MAIN"; the power supply off once and then back on.

Turn the power off and then back on. If a malfunction occurs, replace the remote controller PC board.

YES

YESYES

NO

NO

NOUsing 2-remote controls control.

SS1 of remote controller PC boards

is set to "MAIN."


Troubleshooting 217

2.43 �U9� Malfunction of Transmission Between Indoor and Outside Units in the Same System


U9

Applicable Models



Detect the malfunction signal of any other indoor unit within the system concerned.


When the malfunction decision is made on any other indoor unit within the system concerned.

Supposed Causes

! Malfunction of transmission within or outside of other system! Malfunction of electronic expansion valve in indoor unit of other system! Defect of PC board of indoor unit in other system! Improper connection of transmission wiring between indoor and outside unit


218 Troubleshooting

Troubleshooting


(V2826)

The "U4" display blinks on

the remote controllers of other units within the same

refrigerant system.

Refer to failure diagnosis for "U5" malfunction code.

Re-diagnose by display after passage of 2 minutes or more.

NO

NO

Refer to failure diagnosis for "U4" malfunction code.

YES

YES

"U9" has been displayed for 2 minutes or

more.

NO

Turn on all indoor units.

Refer to failure diagnosis for "A1" malfunction code.

NO

YES

The "A1" display blinks on

the remote controls of other units within the same

refrigerant system.

Refer to failure diagnosis for "UA" malfunction code.

YES

The "UA" display blinks on


refrigerant system.

Refer to failure diagnosis for "A9" malfunction code.

NO

YES

The "A9" display blinks on


refrigerant system.


Troubleshooting 219

2.44 �UA� Indoor & Outside Units and Remote Control Combination Failure


UA

Applicable Models

All models of indoor unitRWEYQ10MYL, TL


Detect abnormalities in combination of indoor and outside units and the remote control using the outside unit PCB.


When any of the followings is detected, failure is instantly confirmed.! When there is a problem in the combination of the indoor and outside units ! When there is a problem in the combination of the indoor unit and the remote control

Supposed Causes

! Excess of connected indoor units! Defect of outside unit PC board (A1P)! Mismatching of the refrigerant type of indoor and outside unit.! Setting of outside P.C. board was not conducted after replacing to spare parts P.C. board.

Troubleshooting

∗ The number of indoor units that can be connected to a single outside unit system depends on the type of outside unit.


(V2827)

The total of

indoor units displaying "UA" and

indoor units connected to the same refrigerant system is

within connectable number of unit∗

Normal

NO

NO

There are too many indoor units within the same refrigerant system.

Push and hold the RESET button on the outside unit PC board for 5 seconds.

YES

Is the outside

P.C. board replaced to spare parts P.C. board ?

YES The refrigerant classification has not been set yet.

NO

YES

Does a malfunction occur?


Matches the refrigerant type of indoor and outside unit.

NO

YES

Does the refrigerant type of

indoor and outside unit match?


220 Troubleshooting

2.45 �UC� Address Duplication of Centralized ControllerRemote Control Display

UC

Applicable Models

All models of indoor unitCentralized controller


The principal indoor unit detects the same address as that of its own on any other indoor unit.


The malfunction decision is made as soon as the abnormality aforementioned is detected.

Supposed Causes

! Address duplication of centralized remote control! Defect of indoor unit PC board

Troubleshooting


(V2828)


Address duplication of central remote controlThe setting must be changed so that the central remote control address is not duplicated.

YES

NO

Optional controllers for

centralized control are connected to the

indoor unit.


Troubleshooting 221

2.46 �UE� Malfunction of Transmission Between Centralized Controller and Indoor Unit


UE

Applicable Models

All models of indoor unitsCentralized controller


Microcomputer checks if transmission between indoor unit and centralized controller is normal.



Supposed Causes

! Malfunction of transmission between optional controllers for centralized control and indoor unit

! Connector for setting master controller is disconnected.! Failure of PC board for central remote controlRemote Control! Defect of indoor unit PC board


222 Troubleshooting

TroubleshootingCaution

Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.

Is the power

supply turned on for indoor units displaying

malfunction?

Is transmission wiring

disconnected or wired incorrectly?

Is the transmission

wiring with the master controller disconnected or

wired incorrectly?

Is the master controller's

connector for setting master controller disconnected?

Set the group No. correctly.


Fix the wiring correctly.



Replace the central PC board.

Reset power supply simultaneously for all optional controllers for centralized control.

NO

YES

NO

YES

YES

NO

NO

Turn indoor unit's power supply.

YES

NO

NO

YES

YES

NO

Has an indoor unit once

connected been remove or its address changed?

Is the group No.

of malfunctioning indoor units set?

Is transmission with all indoor units

malfunctioning?

(V2829)

YES


Troubleshooting 223

2.47 �UF� Refrigerant System not Set, Incompatible Wiring/Piping


UF

Applicable Models

All models of indoor unitsRWEYQ10MYL, TL


On check operation, the number of indoor units in terms of transmission is not corresponding to that of indoor units that have made changes in temperature.


The malfunction is determined as soon as the abnormality aforementioned is detected through checking the system for any erroneous connection of units on the check operation.

Supposed Causes

! Improper connection of transmission wiring between outside unit and external control adapter for outdoor unit.

! Failure to execute wiring check operation! Defect of indoor unit PC board

Troubleshooting

Note: Test operation may not be successful if carried out after the outside unit has been off for more than 12 hours, or if it is not carried out after running all connected indoor units in the fan mode for at least an hour.


(V2830)

Is indoor -

outside and outside - outside unit transmission

wiring normal?


Test operation may not have been carried out successfully.

After fixing incorrect wiring, push and hold the RESET button on the master outside unit PC board for 5 seconds.

YES

NOYES

NO

NO

YES

Is the test

operation (Wiring check operation) carried

out?

Is indoor -outside and outside-

outside unit transmission wiring normal?

Open stop valve.

YES

NOAre the stop valves opened?

∗ The unit will not run for up to 12 minutes.


224 Troubleshooting

2.48 �UH� Malfunction of System, Refrigerant System Address Undefined


UH

Applicable Models

All models of indoor unitsRWEYQ10MYL, TL


Detect an indoor unit with no auto address setting.


The malfunction decision is made as soon as the abnormality aforementioned is detected.

Supposed Causes

! Improper connection of transmission wiring between outside unit and outside unit outside control adapter

! Defect of indoor unit PC board! Defect of outside unit PC board (A1P)

Troubleshooting


(V2831)

NO

YES

YES

After fixing incorrect wiring, push and hold the RESET button on the master outside unit PC board for 5 seconds.

Normal

NO

Is electricity

being introduce forthe first time after

installation or after an indoor or outside unit PC board has been

replaced?

Is indoor - outside and

outside - outside unit transmission wiring

normal?

YES

NormalNO

Does a malfunction occur?

NODoes a

"UH" malfunction occur for all indoor units

in the system?

YES NO

Does a malfunction

occur even after 12 minutes elapses

from the time when electricity is introduced to indoor

and outside units?

YES



After fixing incorrect wiring, push and hold the RESET button on the outside unit PC board for 5 seconds Replace whichever is defective.

* The unit will not run for up to 12 minutes.

SiEN30-602 Troubleshooting (OP: Central Remote Control)

Troubleshooting 225

3. Troubleshooting (OP: Central Remote Control)3.1 �M1� PC Board DefectRemote Control Display

M1

Applicable Models

Central remote control


Detect an abnormality in the DIII-NET polarity circuit.


When + polarity and - polarity are detected at the same time.

Supposed Causes

! Defect of central remote control PC board

Troubleshooting Replace the central remote control.

Troubleshooting (OP: Central Remote Control) SiEN30-602

226 Troubleshooting

3.2 �M8� Malfunction of Transmission Between Optional Controllers for Centralized Control


M8

Applicable Models



Detect the malfunction according to DIII-NET transmission data. (The system will be automatically reset.)


When no master controller is present at the time of the startup of slave controller.When the centralized controller, which was connected once, shows no response.

Supposed Causes

! Malfunction of transmission between optional controllers for centralized control! Defect of PC board of optional controllers for centralized control

Troubleshooting


(V2833)

Is transmission wiring disconnected or

wired incorrectly?

The PC board of one of the optional controllers for centralized control is defective. Try turning on/off using each optional controllers for centralized control, and replace the PC board of the one that is unable to control the indoor unit.

NO

NO


YES

YES

Has a once connected

optional controller for centralized control been

disconnected or its address

changed?

Turn on power supply for all optional controllers for centralized control.


YES

NO

Is the power supply

turned on for all optional controllers for centralized

control?

Set reset switch to "normal."

YES

NO

Is the reset switch of all

optional controllers for centralized control set to

''normal?''


Troubleshooting 227

3.3 �MA� Improper Combination of Optional Controllers for Centralized Control


MA

Applicable Models



Detect the malfunction according to DIII-NET transmission data.


When the schedule timer is set to individual use mode, other central component is present.When multiple master controller are present.When the remote control adapter is present.

Supposed Causes

! Improper combination of optional controllers for centralized control! More than one master controller is connected! Defect of PC board of optional controller for centralized control

Troubleshooting (OP: Central Remote Control) SiEN30-602

228 Troubleshooting

Troubleshooting


(V2834)

NO

NO

Cannot be used in combination with a wiring adaptor for electrical appendices. Remove the wiring adaptor for electrical appendices and reset the power supply for all optional controllers for centralized control simultaneously.

Schedule timer and parallel interface cannot be used in combination. Disconnect either the schedule timer or parallel interface and reset the power supply for all optional controllers for centralized control simultaneously.

Disconnect the schedule timer's individual / combined connector and reset the power supply for all optional controllers for centralized control simultaneously.

Arrange so that the connector for setting master controller is connected to one controller for centralized control and reset the power supply for all optional controllers for centralized control simultaneously.

Disconnect the connector for setting master controller from the master controller, connect to another optional controller for centralized control and simultaneously reset all optional controllers for centralized control again. The controller connected by the connector for setting master controller when the malfunction is cleared is defective and must be replaced.

Reset the power supply forall optional controllers for centralized control simultaneously.

YES

YES

Is the wiring adaptor for

electrical appendices connected?

YESIs a schedule timer connected?

Are there two or more

optional controllers for centralized control connected

with the connector for setting master

controller?

YESIs a parallel interface connected?

NO

YES

Is the schedule timer's

individual/combined connector connected?

NO

NO

If the malfunction is still not cleared:


Troubleshooting 229

3.4 �MC� Address Duplication, Improper SettingRemote Control Display

MC

Applicable Models





Two units are both set to master controller mode or slave controller mode.

Supposed Causes

! Address duplication of centralized remote control

Troubleshooting


Are two or more central remote controls connected? Disconnect all central remote

controllers except one and reset the power supply of the central remote control.

Reset power supply of the central remote control.

NO

YES

(V2835)

Troubleshooting (OP: Schedule Timer) SiEN30-602

230 Troubleshooting

4. Troubleshooting (OP: Schedule Timer)4.1 �UE� Malfunction of Transmission Between Centralized

Controller and Indoor UnitRemote Control Display

UE

Applicable Models

Schedule timerAll models of indoor units


Microcomputer checks if transmission between indoor unit and centralized controller is normal.



Supposed Causes

! Malfunction of transmission between central remote control and indoor unit! Disconnection of connector for setting master controller (or individual/combined switching

connector) ! Defect of schedule timer PC board! Defect of indoor unit PC board

SiEN30-602 Troubleshooting (OP: Schedule Timer)

Troubleshooting 231

Troubleshooting


(V2836)

Is the power

supply turned on for indoor units displaying

malfunction?

Is transmission

wiring disconnected or wired incorrectly?

Is the

transmission wiring with the master

controller disconnected or wired incorrectly?

Is the master

controller's connector for setting master controller

disconnected?








NO

YES

NO

YES

YES

NO

NO

Turn indoor unit's power supply.

YES

NO

NO

YES

YES

YES

NO

Has an indoor unit once

connected been removed or its address changed?

Is the group No. of malfunctioning

indoor units set?

Is transmission

with all indoor units malfunctioning?


232 Troubleshooting

4.2 �M1� PC Board DefectRemote Control Display

M1

Applicable Models

Schedule timer


Detect an abnormality in the DIII-NET polarity circuit.


When + polarity and - polarity are detected at the same time.

Supposed Causes

! Defect of schedule timer PC board

Troubleshooting


Reset power supply.

Does the system return to normal?

YES

NO

External factor other than equipment malfunction (noise etc.)


(V2837)


Troubleshooting 233

4.3 �M8� Malfunction of Transmission Between Optional Controllers for Centralized Control


M8

Applicable Models

Schedule timer


Detect the malfunction according to DIII-NET transmission data. (The system will be automatically reset.)


When no master controller is present at the time of the startup of slave controller.When the optional controllers for centralized control which was connected once, shows no response.

Supposed Causes

! Malfunction of transmission between optional controllers for centralized control! Defect of PC board of optional controllers for centralized control

Troubleshooting


(V2838)

Is transmission


The PC board of one of the optional controllers for centralized control is defective. Try turning on/off using each optional controllers for centralized control, and replace the PC board of the one that is unable to control the indoor unit.

YES

NO


YES

NO

Has a once

connected optional controller for centralized

control been disconnected or its address

changed?



YES

NOIs the power

supply turned on for all optional controllers for

centralized control?


YES

NO

Is the reset switch of all

optional controllers for centralized control set to

"normal" ?


234 Troubleshooting

4.4 �MA� Improper Combination of Optional Controllers for Centralized Control


MA

Applicable Models

Schedule timer




When the schedule timer is set to individual use mode, other central component is present.When multiple master controller are present.

Supposed Causes

! Improper combination of optional controllers for centralized control! More than one master controller is connected.! Defect of PC board of optional controller for centralized control


Troubleshooting 235

Troubleshooting



Arrange so that the connector for setting master controller is connected to one controller for centralized control and reset the power supply for all optional controllers for centralized control simultaneously.

Disconnect the connector for setting master controller from the master controller, connect to another optional controller for centralized control and simultaneously reset all optional controllers for centralized control again. The controller connected by the connector for setting master controller when the malfunction is cleared is defective and must be replaced.

Reset the power supply for all optional controllers for centralized control simultaneously.

YES

YES

NO

Is the schedule timer connected?

Are there two

or more optionalcontrollers for

centralized control connected with the

connector for setting master

controller?

YES

Is the schedule timer's

individual/combined connector connected?

NO

NO

Cannot be used in combination with a wiring adaptor for electrical appendices. Remove the wiring adaptor for electrical appendices and reset the power supply for all optional controllers for centralized control simultaneously.

YESIs the

wiring adaptor for electrical appendices

connected?

NO

Schedule timer and parallel interface cannot be used in combination. Disconnect either the schedule timer or parallel interface and reset the power supply for simultaneously centralized control.

YESIs a parallel interface

connected?

NO


(V2839)


236 Troubleshooting

4.5 �MC� Address Duplication, Improper SettingRemote Control Display

MC

Applicable Models

All models of indoor units, schedule timer




When two or more schedule timers are connected.

Supposed Causes

! Address duplication of optional controller for centralized control

Troubleshooting


(V2840)

Are two or more centralized controller

connected?

Reset the power supply for the centralized controller.

Disconnect all centralized controller except one and reset the centralized controller timer’s power supply.

YES

NO

SiEN30-602 Troubleshooting (OP: Unified ON/OFF Controller)

Troubleshooting 237

5. Troubleshooting (OP: Unified ON/OFF Controller)5.1 Operation Lamp BlinksRemote Control Display

Operation lamp blinks

Applicable Models

All models of indoor unitsUnified ON/OFF controller




Supposed Causes

! Malfunction of transmission between optional controller and indoor unit! Connector for setting master controller is disconnected! Defect of unified ON/OFF controller! Defect of indoor unit PC board! Malfunction of air conditioner

Troubleshooting (OP: Unified ON/OFF Controller) SiEN30-602

238 Troubleshooting

Troubleshooting

(V2841)


Is the power supply

for the indoor unit displaying a malfunction

turned on?

Is transmission


Is the transmission wiring

with the master controller disconnected or wired

incorrectly?

Is the master

controller's connector for setting master controller

disconnected.







Reset power supply for all optional controllers for centralized control

NO

YES

NO

YES

YES

NO

YES

Turn the power supply of the indoor unit on.

YES

NO

NO

YES

NO

YES

NO

Has a once connected

indoor unit been removed or its address changed?

Diagnose the cause with the air conditioner's failure diagnosis manual.

NO

YESIs a

malfunction code displayed on the remote

control?

Is the group No.

of malfunctioning indoor units set?

Is transmission

with all indoor units malfunctioning?


Troubleshooting 239

5.2 Display �Under Host Computer Integrate Control� Blinks (Repeats Single Blink)


�under host computer integrated control� (Repeats single blink)

Applicable Models

Unified ON/OFF controllerCentral remote control, Schedule timer




When the centralized controller, which was connected once, shows no response.The control ranges are overlapped.When multiple master central controller are present.When the schedule timer is set to individual use mode, other central controller is present.When the wiring adapter for electrical appendices is present.

Supposed Causes

! Address duplication of central remote control! Improper combination of optional controllers for centralized control! Connection of more than one master controller ! Malfunction of transmission between optional controllers for centralized control! Defect of PC board of optional controllers for centralized control


240 Troubleshooting

Troubleshooting


(V2842)

Is the reset

switch of all optional controllers for centralized control set

to "normal"?

Is transmission


Correct the setting of the unified ON / OFF controller's switch for setting each address and reset the power supply of the unified ON / OFF controller.

Refer to failure diagnosis for central remote controller or schedule timer.

NO

YES

YES

NO

NO



NO

NO

YES

YES

YES

Is the power

supply turned on for all optional controllers

for centralized control?


NO

YES

Hasa once

connected optional controller for centralized

control been disconnected or its address changed?

Is the central

remote controller or schedule timer displaying a

malfunction?

Is a central remote

control or schedule timer connected?


NO

YES NO

Is the

setting of the unified ON / OFF

controller's switch for setting each address duplicated?

Are two or more unified ON / OFF controllers

connected?

YES

2A


Troubleshooting 241

NO

NO

NO

Cannot be used in combination with a wiring adaptor for electrical appendices. Remove the wiring adaptor for electrical appendices and reset the power supply for all optional controllers for centralized control simultaneously. Schedule timer and data station cannot be used in combination. Disconnect either the schedule timer or data station and reset the power supply for all optional controllers for centralized control simultaneously.

Schedule timer and parallel interface cannot be used in combination. Disconnect either the schedule timer or parallel interface and reset the power supply for all optional controllers for centralized control simultaneously.


Arrange so that the connector for setting master control is connected to one controller for centralized control and reset the power supply for all optional controllers for centralized control simultaneously.

Disconnect the connector for setting master control from the master controller, connect to another optional controller for centralized control and simultaneously reset all optional controllers for centralized control again. The controller connected by the connector for setting master control when the malfunction is cleared is defective and must be replaced.

Reset the power supply for all optional controllers for centralized control simultaneously.

YES

YES

Is the wiring adapter for

electrical appendices connected?

YESIs a schedule timer connected?

Are there two or

more optional controllers for centralized control connected with the

connector for setting master control?

YESIs a parallel interface connected?

NO

YESIs the

schedule timer's individual/combined

connector connected?

YESIs a data station connected?

NO

NO


2A

(V2843)


242 Troubleshooting

5.3 Display �Under Host Computer Integrate Control� Blinks (Repeats Double Blink)


�under host computer integrated control� (Repeats double blink)

Applicable Models

Unified ON/OFF controller




When no central control addresses are set to indoor units.When no indoor units are connected within the control range.

Supposed Causes

! Central control address (group No.) is not set for indoor unit.! Improper address setting! Improper wiring of transmission wiring

Troubleshooting


(V2844)

Is the switch for

setting each address set correctly?

Is the transmission wiring

disconnected or wired incorrectly?

Replace the PC board of the unified ON/OFF controller.


Set by remote controller the central control address for all indoor units connected to the central control line.

YES

YES

Set the switch for setting each address correctly and simultaneously reset the power supply for all optional controllers for centralized control.

NO

NO

NO

YES

Is the central

control address (group No.) set for the

indoor unit?


Troubleshooting 243

← Refer to [CHECK 5]← Is the indoor unit too small for the large-sized outside unit?

[CHECK 1] Check for causes of rise in high pressure

Referring to the Fault Tree Analysis (FTA) shown below, identify the faulty points.

Rise in high pressure

Local pressure rise

Faulty high pressure control

Faulty outside unit electronic expansion valve

Faulty control

Faulty indoor unit electronic expansion valve

Stop valve closed

Faulty high pressure sensor

[In cooling]If the outside unit electronic expansion valve is throttled(∗1)

Dirty water heat exchanger

Decrease in water of the water heat exchanger

Mixing-in of non-condensable gas

Degradation in condensing capacity

Clogged water piping system

[In cooling]

[In heating]

← Check to be sure the stop valve is open.

← Conduct visual checks for pipe conditions.

← Is there any temperature difference around the filter or the branch pipe?

← Are the coil resistance and insulation normal?

← Are the voltage characteristics normal?

← Does the pressure value of the Service Checker match the reading of the pressure sensor?



← Is the connector properly connected?Are the thermistor resistance characteristics normal?


← Is the heat exchanger clogged (in cooling)?

← Is air or else mixed in the refrigerant system?

← Is the water temperature at the inlet not more than 45°C?

← Does the water pump function normally?

← Is the strainer or the like clogged?

← Is the suction air temperature not more than 27°C?

← Is air or else mixed in the refrigerant system?

← Is the indoor temperature not more than 27°C?


← Can the fan motor be rotated with hands?Are the motor coil resistance and insulation normal?

← If a spare PCB is mounted, is the capacity setting properly made?

← Is the air filter clogged?

← Is there any obstacle in the air passage?

Excessive refrigerant charging

Improper mode selection [In heating]

∗1 : In cooling, the outside unit electronic expansion valve (Y1E) is fully open in normal condition.∗2 : In heating, the indoor unit electronic expansion valve is used for “subcooled degree control”.

(Refer to “Electronic Expansion Valve Control” on page 93)

[In heating]If the indoor unit electronic expansion valve excessively throttled(∗2)

High pipe resistance

A temperature difference in excess of 10°C between the inlet and the outlet is deemed to be abnormal.

Faulty control

Bent and Crush of pipe

Clogging of foreign particles

Faulty valve coil

Faulty valve body

Faulty high pressure sensor

Faulty control PCB

Faulty indoor unit liquid pipe thermistor

Faulty valve coil

Faulty valve body

Faulty control PCB

High water temperature at the water heat exchanger inlet

Faulty water pump

Short circuit

High ambient temperature

Faulty fan motor

Dirty filter

Obstacle

Faulty control PCB (including capacity setting)

Mixing-in of non-condensable gas

High suction air temperature of indoor unit

Decreased fan airflow rate

Decreased fan output

High air passage resistance

Faulty suction air thermistor of indoor unit


244 Troubleshooting

Abnormal piping length

Degradation in evaporating capacity

[In cooling]

Short circuit

Low ambient temperature



← If a spare PC board is mounted, is the capacity setting properly made?



← Is the water temperature at the water heat exchanger inlet not less than 10°C?

← Is the water heat exchanger clogged?

← Is the piping length in the permissible range?


← Is there any temperature difference around the filter or the branch pipe?


[In heating]

Moisture choke

← Refer to [CHECK 6]

← Eliminate moisture by vacuum break.

∗1 : For details of the compressor capacity control while in cooling, refer to “Compressor Control” on page 69.∗2 : The “low pressure protection control” includes low pressure drop control and hot gas bypass control. For

details, refer to page 75.∗3 : In cooling, the indoor unit electronic expansion valve is used for “superheated degree control”. (For details,

refer to page 93.)∗4 : In heating, the outdoor unit electronic expansion valve (Y1E) is used for “superheated degree control of

outside unit heat exchanger”. (For details, refer to page 71.)

[CHECK 2] Check for causes of drop in low pressure


Abnormally low low-pressure (Low evaporating temperature)






← Check for the thermistor resistance and connection.






← Is the suction air temperature not less than 14°C?

← Is the indoor temperature not more than 14°C?


Less circulation quantity of refrigerant


Inadequate refrigerant quantity

Bent or Crush of pipe

Clogging of foreign particles

Stop valve closed

Low water temperature at the water heat exchanger inlet


Faulty low pressure control

[In cooling](∗1)

[In both cooling and heating](∗2)

[In cooling]If the indoor unit electronic expansion valve is excessively throttled (∗3)

Faulty electronic expansion valve control

[In heating]If the outside unit electronic expansion valve is excessively throttled (∗4)

Faulty compressor capacity control

Faulty low pressure protection control


Faulty control


Faulty control

Faulty low pressure sensor

Faulty control PCB


Faulty hot gas solenoid valve

Faulty control PCB

Faulty valve coil

Faulty valve body

Faulty gas pipe thermistor of indoor unit

Faulty liquid pipe thermistor of indoor unit

Faulty control PCB

Faulty valve coil

Faulty valve body


Faulty suction pipe thermistor

Faulty control PCB

Low suction air temperature of indoor unit

Faulty suction air thermistor of indoor unit




Faulty fan motor

Faulty control PCB (including capacity setting)

Dirty filter

Obstacle


Troubleshooting 245

(∗1)

Faulty hot gas bypass control

[In cooling only]

(∗2)


Faulty control


Clogged hot gas passage






← Is the temperature of piping connected to the four-way changeover valve normal?




← Is the connector properly connected? Are the thermistor resistance characteristics normal?



← Is the piping length in the permissible range?


← Eliminate moisture by vacuum break.


∗1 : For hot gas bypass control, refer to “Low Pressure Protection Control” on page 75.∗2 : For subcooling electronic expansion valve, refer to page 71.∗3 : In cooling, the indoor unit electronic expansion valve is used for “superheated degree control”. (Refer to page 93.)∗4 : In heating, the outside unit electronic expansion valve (Y1E) is used for “superheated degree control.” (Refer to page

71.)∗5 : Reference values for superheated degree to be used in the judgment of overheat operation

1 Suction gas superheated degree: 10°C or more 2 Discharge gas superheated degree: 45°C or more, excluding when it is immediately after startup, under drop control or other specific conditions.(The values above must be used only for reference purposes. Even it is operated within the range above,operation may be normal in other conditions.)

[CHECK 3] Check for causes of overheat operation


Rise in discharge pipe temperature

Faulty subcooling electronic expansion valve (Y3E) control

Faulty subcooling electronic expansion valve

Faulty control

Faulty four-way changeover valve function

Faulty discharge pipe temperature control

Superheated compressor

[In cooling]If the indoor unit electronic expansion valve excessively throttled (∗3)

Faulty superheated degree control

Inadequate refrigerant quantity


[In heating]If the outside unit electronic expansion valve excessively throttled (∗4) Faulty control

Abnormal pipe length

Bent or Crush of pipe

Stop valve closed

(Including moisture choke)

Faulty solenoid valve coil

Faulty solenoid valve body

Faulty control PCB

Faulty valve coil

Faulty control PCB

Faulty valve body


Faulty subcooling heat exchanger outlet thermistor

Four-way changeover valve is located in an intermediate position

Leakage from hot gas bypass valve

Superheat caused by axis damage

Superheat caused by faulty compressor

Faulty valve coil

Faulty valve body

Faulty control PCB



Faulty valve coil

Faulty valve body



Faulty control PCB




246 Troubleshooting

∗1 : In cooling, the indoor unit electronic expansion valve is used for “superheated degree control”. (Refer to page 93.)∗2 : In heating, the outside unit electronic expansion valve (Y1E) is used for “superheated degree control”. (Refer to page

71.)∗3 : Reference values for superheated degree to be used in the judgment of wet operation

1 Suction gas superheated degree: 3°C or less 2 Discharge gas superheated degree: 15°C or less, excluding when it is immediately after startup, under drop control or other specific conditions.(The values above must be used only for reference purposes. Even it is operated within the range above, operation may be normal in other conditions.)

Dwelled refrigerant



Faulty crankcase heater

Faulty superheated degree control

Wet operation

[In cooling]

Degradation in evaporation capacity

[In heating]

← Does the water pump function normally?

← Is the strainer or other parts clogged?

← Is the water heat exchanger clogged?












← Is the heat exchanger clogged?

[CHECK 4] Check for causes of wet operation


Excessive refrigerant charging

[In cooling]If the indoor unit electronic expansion valve excessively opened (∗1)

[In heating]If the outside unit electronic expansion valve excessively opened (∗2)

Frequent starts and stops of the compressor

Faulty control

Faulty control

Dirty evaporator




Faulty valve coil

Faulty valve body

Faulty control PCB

Faulty control PCB

Faulty fan motor

Dirty filter

Obstacle

Clogged water piping system

Faulty water pump


Decrease in water of the water heat exchanger

Faulty control PCB(including capacity setting)

Faulty valve coil

Faulty valve body






Troubleshooting 247

“ªáº

å~áº

Adequate level

(Degree of excessive charging)

Maintains a certain level of high pressure

In order to maintain high pressure, frequency decreases due to capacity control.

Heating

High pressure

Low pressure

Frequency

Cooling

Reaches the lowest frequency

Outside unit electronic expansion valve opens due to overload control

In order to maintain low pressure, frequency rises due to capacity control.

No changes within the range where the receiver is capable of absorbing.

Increase in the degree of excessive charging

High pressure drops immediately after overload control, however high pressure rises again.

Maintains a certain level of low pressure

Gradually rises as the frequency increases.

High pressure step-down control

Subcooling increases(Liquid connecting pipe temperature drops)

No changes within the range where the receiver is capable of absorbing.

Low pressure rises due to decreased compressor output

[CHECK 5] Check for excessive refrigerant charging

In case of the VRV, judgment must be made based on operation conditions in relation to pressure control and electronic expansion valve control. Refer to the following criteria to make such decisions.

Diagnosis of excessive refrigerant charging(1) Since high pressure rises, overload control is carried out and therefore capacity tends to be

insufficient.(2) Since superheated degree of suction gas decreases (or it starts wet operation), the temperature of

the compressor discharge pipe drops too much for pressure applied.(3) Since the subcooling degree of condensate liquid increases, the temperature of air blown through

subcooled part decreases in heating.


High pressure

Low pressure

Frequency

Low pressure rises due to decreased frequency

Low pressure drops because the outside unit electronic expansion valve is closed.Low pressure protection activates hot gas bypass = In fact, low pressure hunting.


248 Troubleshooting

In order to maintain low pressure, frequency decreases due to capacity control.


With low outdoor air cooling control, fan is controlled in order to maintain high pressure = Hunting in fact

When frequency reaches the lowest level, low pressure cannot be maintained.

High pressure drops as compressor capacity decreases.

In order to maintain low pressure, frequency decreases due to capacity control.

Low pressure rises due to large open degree of indoor unit electronic expansion valve. Frequency slightly increases due to capacity control.

Frequency decreases due to droop control.

The open degree of the outside unit electronic expansion valve increases.

The outside unit electronic expansion valve opens fully. Frequency increases. Discharges pipe or low

pressure droop control

Any one of electronic expansion valves opens fully.

The open degree of the indoor unit electronic expansion valve increases.

[CHECK 6] Check for inadequate refrigerant quantity

In case of the VRV, judgment must be made based on operation conditions in relation to pressure control and electronic expansion valve control. Refer to the following criteria to make such decisions.

Diagnosis of inadequate refrigerant(1) The superheated degree of suction gas increases and temperature of compressor discharge gas

rises.(2) The superheated degree of suction gas increases and the electronic expansion valve slightly

opens.(3) With low pressure, cooling capacity (heating capacity) is unavailable.

High pressure

Low pressure

Frequency

Cooling

å~áºHeating

High pressure

Low pressure

Frequency

Maintains a certain level of low pressure


Maintains a certain level of high pressure

Adequate level

(Degree of inadequate refrigerant)

Increase in the degree of inadequate refrigerant

SiEN30-602

Procedure for Mounting / Dismounting of Switch Box 249

Part 7Procedure for Mounting /

Dismounting of Switch Box

1. Procedure for Mounting / Dismounting of Switch Box.........................2501.1 Procedure for Dismounting...................................................................2501.2 Procedure for Mounting........................................................................250

Procedure for Mounting / Dismounting of Switch Box SiEN30-602

250 Procedure for Mounting / Dismounting of Switch Box

1. Procedure for Mounting / Dismounting of Switch Box

1.1 Procedure for Dismounting1. Dismount the lid from the switch box.2. Disconnect high voltage and low voltage wirings from the PC board and the terminal blocks,

referring to Figure on the right.3. Unscrew mounting screws from the top plate, the stop valve mounting plate, and the bottom

frame in a total of 6 places.4. With attention paid not to make the switch box support leg into contact with the side panel,

rotate the switch box to pull out it, while referring to Figure on the right.In order to pull out the switch box, check to be sure no wirings get stuck with the switch box.

Procedure for Mounting/Dismounting of Switch Box

1.2 Procedure for Mounting! Mount the switch box, following the procedure for dismounting in reverse.

After the completion of mounting, check to be sure connectors are all properly connected.

Side panel

Switch box support leg

List of Detachable Connectors

A1P

X7A White (WHT) Y1S

X9A Blue (BLU) Y3S

X10A Pink (PNK) Y4S

X12A Gray (GRY) Y6S

X2A Red (RED) S1PH

X17A Gray (GRY) E1HC

X13A Green (GRN) Y25

X15A Blue (BLU) Y5S

X16A Black (BLK) Y7S

U,V,W M1C

X34A Red (RED) R3T

X37A White (WHT) R2T




X46A Red (RED) S1NPH

X45A Blue (BLU) S1NPL

X26A White (WHT)* Y1E

X28A Blue (BLU)* Y3E

X4M

A1P

High voltage wiring

Low voltage wiring

* Attach or detach any connector at the relay connector

SiEN30-602 Procedure for Mounting / Dismounting of Switch Box

Procedure for Mounting / Dismounting of Switch Box 251

Screw/Unscrew the mounting screws

Connect/Disconnect the wirings.

Procedure for Mounting / Dismounting of Switch Box SiEN30-602

252 Procedure for Mounting / Dismounting of Switch Box

SiEN30-602

Appendix 253

Part 8Appendix

1. Piping Diagrams..................................................................................2541.1 Outside Units........................................................................................2541.2 BS Units ...............................................................................................2551.3 Indoor Unit............................................................................................256

2. Wiring Diagrams..................................................................................2582.1 Outside Unit..........................................................................................2582.2 Outside Unit Field Wiring......................................................................2602.3 BS Unit .................................................................................................2642.4 Indoor Unit............................................................................................265

3. List of Electrical and Functional Parts .................................................2793.1 Outside Unit..........................................................................................2793.2 Indoor Side ...........................................................................................280

4. Option List ...........................................................................................2854.1 Optional Accessories............................................................................285

5. Thermistor Resistance / Temperature Characteristics........................2866. Pressure Sensor .................................................................................2887. Method of Checking The Inverter�s Power Transistors

and Diode Modules .............................................................................289

Piping Diagrams SiEN30-602

254 Appendix

1. Piping Diagrams1.1 Outside UnitsRWEYQ10MYL, TL / RWEYQ20MYL, TL / RWEYQ30MYL, TL

FilterSolenoid valve

Solenoid valve

Solenoid valve

Strainer

Solenoid valve

Filter Filter Filter

Filter

Filter

Filter

Stop valve (With service port on on-site piping side Ø7,9mm flare connection)

Solenoid valve

Check valve

Gauge port1/4” flare connection

Gauge port1/4” flare connection

High pressure sensor

High pressure switch

CompressorLow pressure sensor

Check valve

Check valve

Check valve

Fusible plug Electronic

expansion valve

Water inlet

Water outlet

Capillary tube

Capillary tubeCapillary

tube

Capillary tube

Four way valve

Four way valve

Service port

Plate heat exchanger

Pressure regulating valve

Electronic expansion valve

Heat exchanger pipe

Oil

sepa

rato

r

Sub

coo

ling

heat

exc

hang

er

SE

NP

L

Rec

eive

r

SiEN30-602 Piping Diagrams

Appendix 255

1.2 BS UnitsBSVQ36MVJUBSVQ60MVJU

4D045338

Capillary tube

Capillary tube

Check valve

Solenoid valve

Three way valveB

AFilter

Gas piping fitting port

Liquid piping fitting port

Discharge gas piping fitting port

Liquid gas piping fitting port

Liquid piping fitting port

Piping Diagrams SiEN30-602

256 Appendix

1.3 Indoor UnitFXCQ, FXFQ, FXKQ, FXSQ, FXMQ, FXHQ, FXAQ, FXLQ, FXNQ

DU220-602J

Heat exchanger

(4)

(1)

Gas piping connection port

Liquid piping connection port

(Flare connection)

Flare connection : φ15.9 or lessAttached piping : Above φ19.1

Fan

Filter Filter

(2)

(3)


Code Name Code Main function

(1) Electronic expansion valve Y1EUsed for gas superheated degree control while in cooling operation or subcooled degree control while in heating operation.

(2) Suction air temperature thermistor R1T Used for thermostat control.

(3) Liquid pipe R2TUsed for gas superheated degree control while in cooling operation or subcooled degree control while in heating operation.

(4) Gas pipe R3T Used for gas superheated degree control while in cooling operation.

(mm)Capacity GAS Liquid

20 / 25 / 32 / 40 / 50M φ12.7 φ6.463 / 80 / 100 / 125M φ15.9 φ9.5

200M φ19.1 φ9.5250M φ22.2 φ9.5

SiEN30-602 Piping Diagrams

Appendix 257

FXDQ

! Refrigerant pipe connection port diameters

4D043864H

Gas side

Liquid side

Filter

Fan

Indoor heat exchanger

Filter


(mm)Model Gas Liquid

FXDQ20P / 25P / 32PVE(T) φ12.7 φ6.4FXDQ20NA / 25NA / 32NA / 40NA / 50NAVE(T) φ12.7 φ6.4FXDQ63NAVE(T) φ15.9 φ9.5

Wiring Diagrams SiEN30-602

258 Appendix

2. Wiring Diagrams2.1 Outside UnitRWEYQ10MYL / RWEYQ20MYL / RWEYQ30MYL

3D05

1506

A

Pow

er S

uppl

y38

0V 3

N~

60H

z

RED

WHT

BLK

BLU

RED

WHT

BLK

RED

WHT

BLK

RED

WHT

BLK

Det

ail o

f M1C

NO

TES)

WHT

WHT

RE

D

BLU

BLK

GR

N

Ope

ratio

n ou

tput

Not

e) 9

Is c

onne

ctor

col

or fo

r prin

ted

circ

uit b

oard

Is c

onne

ctor

col

or fo

r com

pone

nt.

Is d

iscr

imin

atio

n co

lor f

or c

ompo

nent

lead

wire

.

WHT

WHT

WHT Inte

rlock

Note

) 8

Note

) 5

Note

) 10

Outd

oor (

Q1) (

Q2)

Outd

oor (

F1) (

F2)

Indo

or (F

1) (F

2)

COOL

/HEA

T se

lecto

rIN

-OUT

FAN

COOL

COOL

COOL

/HEA

T se

lecto

r (op

tiona

l acc

esso

ry)

EL. C

ompo

. BOX

HEAT

HEAT

OUT-O

UTOU

T-MUL

TI

ORG

BLU

WHT

BLU

BLU

RED

1. T

his

wiri

ng d

iagr

am is

app

lied

only

to th

e ou

tsid

e un

it.2.

: F

ield

wiri

ng3.

: T

erm

inal

stri

p : C

onne

ctor

: T

erm

inal

: P

rote

ctiv

e ea

rth (s

crew

)4.

Whe

n us

ing

the

optio

n ad

apte

r, re

fer t

ot th

e in

stal

latio

n m

anua

l.5.

Ref

er to

the

inst

alla

tion

man

ual f

or c

onne

ctio

n w

iring

to in

door

-out

door

T

rans

mis

sion

F1

. F2,

out

door

-indo

or tr

ansm

issi

on F

1 . F

2, o

utdo

or-m

ulti

trans

mis

sion

Q1

. Q2

6. R

efer

to “S

ervi

ce P

reca

utio

n” la

bel (

on E

L, C

OM

PO, B

OX

CO

VER

), ho

w to

use

BS1

~BS5

and

DS1

sw

itch.

7. W

hen

oper

atin

g, d

o no

t sho

rt ci

rcui

t for

pro

tect

ion

devi

ce. (

S1PH

)8.

Be

sure

to c

onne

ct a

n in

terlo

ck c

ircui

t bet

wee

n th

e te

rmin

al (3

)-(4)

of t

erm

inal

stri

p (X

3M)

9. In

stal

l a h

eat s

ourc

e w

ater

pum

p op

erat

ion

circ

uit b

etw

een

the

term

inal

(1) -

(2) o

f ter

min

al s

trip

(X2M

), w

hen

inte

rlock

ing

a he

at

sour

ce w

ater

pum

p an

d sy

stem

ope

ratio

n.10

. Coo

l/hea

t sel

ecto

r can

not b

e co

nnec

ted

whe

n op

erat

ing

heat

reco

very

sys

tem

.11

. Col

ors:

BLK

: Bla

ck, R

ED: R

ed, B

lu: B

lue,

WH

T: W

hite

, PN

K: P

ink,

GRY

: Gra

y, O

RG

: Ora

nge

L1-R

ED

L2-W

HT

L3-B

LK

N-B

LUA1

P Pr

inte

d ci

rcui

t boa

rd (M

ain)

K1

0R

Mag

netic

rela

y (O

pera

tion

Out

put)

(A1P

) X1

A, X

3A

Con

nect

or (Y

1E, Y

3E)

A2P

Prin

ted

circ

uit b

oard

(IN

V)

K11R

M

agne

tic re

lay

(Y5S

) (A1

P)

X1M

Te

rmin

al s

trip

(Pow

er s

uppl

y)A3

P Pr

inte

d ci

rcui

t boa

rd (N

oise

filte

r) K1

2R

Mag

netic

rela

y (Y

7S) (

A1P)

X1

M

Term

inal

stri

p (c

ontro

l A1P

)BS

1 ~5

Pu

sh b

utto

n sw

itch

K13R

M

agne

tic re

lay

(E1H

C) (

A1P)

X2

M

Term

inal

stri

p (o

pera

tion

outp

ut)

(M

ode,

Set

, Ret

urn,

Tes

t, R

eset

) L1

R

Rea

ctor

X3

M

Term

inal

stri

p (In

terlo

ck)

C63

, C66

C

apac

itor

M1C

M

otor

(Com

pres

sor)

X4M

Te

rmin

al s

trip

(M1C

)D

S1

Dip

sw

itch

M1F

, M2F

M

otor

(Fan

, Inv

erte

r coo

ling)

Y1

E El

ectro

nic

expa

nsio

n va

lve

(Mai

n)E1

HC

C

rank

case

hea

ter

PS

Switc

hing

pow

er s

uppl

y Y3

E El

ectro

nic

expa

nsio

n va

lve

(Sub

Coo

l)F1

U

Fuse

(250

V, 5

A, �

) (A3

P)

Q1R

P Ph

ase

reve

rsal

det

ect c

ircui

t (A1

P)

Y1S

Sole

noid

val

ve (H

ot G

as B

ypas

s)F1

U, 2

U

Fuse

(250

V, 1

0A, �

) (A

1P)

R50

, R59

R

esis

tor

Y2S

Sole

noid

val

ve (O

il R

ecov

ery)

F3U

Fu

se (2

50V,

5A,

�)

R95

R

esis

tor (

Cur

rent

Lim

iting

) Y3

S So

leno

id v

alve

(Rec

eive

r Pre

ssur

izat

ion)

H1P

~ 8

P Pi

lotla

mp

(Ser

vice

Mon

itor-O

rang

e)(A

1P) R

1T

Ther

mis

tor (

Fin)

(A2P

) Y4

S So

leno

id v

alve

(Rec

eive

r Gas

Pur

ge)

[H

2P] P

repa

re, T

est -

------

-----

Flic

kerin

g R

2T

Ther

mis

tor (

Suct

ion)

Y5

S So

leno

id v

alve

(4 W

ay V

alve

) (M

ain)

Mal

func

tion

Det

ectio

n --

Ligh

t up

R3T

Th

erm

isto

r (M

1C D

isch

arge

) Y6

S So

leno

id v

alve

(Liq

uid

Pipe

)H

AP

Pilo

t lam

p (S

ervi

ce M

onito

r-Gre

en)(A

1P) R

4T

Ther

mis

tor (

Hex

Gas

Pip

e)

Y7S

Solen

oid va

lve (4

Way

valve

)(Hea

t Exc

hang

er)

K1M

M

agne

tic c

onta

ctor

(M1C

) (A2

P)

R5T

Th

erm

isto

r (Su

b co

olin

g he

x)

Z1C

N

oise

filte

r (Fe

rrite

cor

e)K1

R

Mag

netic

rela

y (A

2P)

R6T

Th

erm

isto

r (R

ecei

ver L

iq P

ipe)

Z1

F N

oise

filte

r (W

ith S

urge

Abs

orbe

r)K3

R

Mag

netic

rela

y (Y

1S) (

A1P)

S1

NPH

Pr

essu

re s

enso

r (H

igh)

K5R

M

agne

tic R

elay

(Y3S

) (A1

P)

S1N

PL

Pres

sure

sen

sor (

Low

)K6

R

Mag

netic

Rel

ay (Y

4S) (

A1P)

S4

PH

Pres

sure

sw

itch

(Hig

h)K7

R

Mag

netic

Rel

ay (M

4F, M

2F) (

A1P)

T1

R

Tran

sfor

mer

(220

V/20

V)

Coo

l/Hea

t Sel

ecto

rK8

R

Mag

netic

Rel

ay (Y

6s) (

A1P)

V1

CP

Safe

ty d

evic

es in

put

S1S

Sele

ctor

sw

itch

(Fan

/Coo

l . H

eat)

K9R

M

agne

tic re

lay

(Y2S

) (A1

P)

V1R

, V2R

Po

wer

mod

ule

(A2P

) S2

S Se

lect

or s

witc

h (C

ool/H

eat)

SiEN30-602 Wiring Diagrams

Appendix 259

RWEYQ10MTL / RWEYQ20MTL / RWEYQ30MTL

3D05

1505

A

POW

ER S

UPPL

Y

Detail

of M1

C

EL. C

OMPO

. BOX

Cool/

heat

selec

tor (o

pition

al ac

ceso

ry)

Cool/

heat

selec

torIn/

out

out/o

utou

t/mult

i

note

10

Cool

Cool

Heat

Heat

Fan

Indoo

r (F1)

(F2)

Outdo

or (F1

) (F2)

Outdo

or (Q

1) (Q

2)

Note

7

Is co

nnec

tor co

lor fo

r prin

ted ci

rcuit b

oard.

Is co

nnec

tor co

lor fo

r com

pone

nt.Is d

iscrim

ination

color

for c

ompo

nent

lead w

ire.

Opera

tion o

utput

note

9

Interl

ock

L1-R

ED

L2-W

HT

L3-B

LUA1

P Pr

inte

d ci

rcui

t boa

rd (M

ain)

K1

2R

Mag

netic

rela

y (Y

7S) (

A1P)

X1

M

Term

inal

stri

p (P

ower

sup

ply

A2P

Prin

ted

circ

uit b

oard

(IN

V)

K13R

M

agne

tic re

lay

(E1H

C) (

A1P)

X1

M

Term

inal

stri

p (c

ontro

l) (A

1P)

A3P

Prin

ted

circ

uit b

oard

(Noi

se fi

lter)

K84R

M

agne

tic re

lay

(Lim

iting

Res

isto

r) (A

2P)

X2M

Te

rmin

al s

trip

(ope

ratio

n ou

tput

)BS

1 ~5

Pu

sh b

utto

n sw

itch

L1R

R

eact

or

X3M

Te

rmin

al s

trip

(Inte

rlock

)

(Mod

e, S

et, R

etur

n, T

est,

Res

et)

M1C

M

otor

(Com

pres

sor)

X4M

Te

rmin

al s

trip

(M1C

)C

1 C

apac

itor

M1F

, M2F

M

otor

(Fan

, Inv

erte

r coo

ling)

Y1

E El

ectro

nic

expa

nsio

n va

lve

(Mai

n)D

S1

Dip

sw

itch

PS

Switc

hing

pow

er s

uppl

y Y3

E El

ectro

nic

expa

nsio

n va

lve

(Sub

Coo

l)E1

HC

C

rank

case

hea

ter

Q1R

P Ph

ase

reve

rsal

det

ect c

ircui

t (A1

P)

Y1S

Sole

noid

val

ve (H

ot G

as B

ypas

s)F1

U

Fuse

(250

V, 5

A, �

) (A3

P)

R1

Res

isto

r (Li

miti

ng R

esis

tor)

(A2P

) Y2

S So

leno

id v

alve

(Oil

Rec

over

y)F1

U, 2

U

Fuse

(250

V, 1

0A, �

) (A

1P)

R2

Res

isto

r (C

urre

nt S

enso

r) (A

2P)

Y3S

Sole

noid

val

ve (R

ecei

ver P

ress

uriz

atio

n)F3

U

Fuse

(250

V, 5

A, �

) R

1T

Ther

mis

tor (

Fin)

(A2P

) Y4

S So

leno

id v

alve

(Rec

eive

r Gas

Pur

ge)

H1P

~ 8

P Pi

lotla

mp

(Ser

vice

Mon

itor-O

rang

e)(A

1P) R

2T

Ther

mis

tor (

Suct

ion)

Y5

S So

leno

id v

alve

(4 W

ay V

alve

) (M

ain)

[H

2P] P

repa

re, T

est -

------

-----

Flic

kerin

g R

3T

Ther

mis

tor (

M1C

Dis

char

ge)

Y6S

Sole

noid

val

ve (L

iqui

d Pi

pe)

Mal

func

tion

Det

ectio

n --

Ligh

t up

R4T

Th

erm

isto

r (H

ex G

as P

ipe)

Y7

S So

lenoid

valve

(4 W

ay va

lve)(H

eat E

xcha

nger

)H

AP

Pilo

t lam

p (S

ervi

ce M

onito

r-Gre

en)(A

1P) R

5T

Ther

mis

tor (

Sub

cool

ing

hex)

Z1

C

Noi

se fi

lter (

Ferri

te c

ore)

K1M

M

agne

tic c

onta

ctor

(M1C

) (A2

P)

R6T

Th

erm

isto

r (R

ecei

ver L

iq P

ipe)

Z1

F N

oise

filte

r (W

ith S

urge

Abs

orbe

r)K3

R

Mag

netic

Rel

ay (Y

1S) (

A1P)

S1

NPH

Pr

essu

re s

enso

r (H

igh)

K5

R

Mag

netic

Rel

ay (Y

3S) (

A1P)

S1

NPL

Pr

essu

re s

enso

r (Lo

w)

Fi

eld

Supp

lied

Parts

(Not

e 8)

.K6

R

Mag

netic

Rel

ay (Y

4S) (

A1P)

S4

PH

Pres

sure

sw

itch

(Hig

h)

AXP

Inte

rlock

circ

uit

K7R

M

agne

tic R

elay

(M4F

, M2F

) (A1

P)

T1R

Tr

ansf

orm

er (2

20V/

20V)

Con

nect

orfo

r opt

iona

l acc

esso

ry (N

ote

4)K8

R

Mag

netic

Rel

ay (Y

6s) (

A1P)

V1

CP

Safe

ty d

evic

es in

put

X24A

C

onne

ctor

(Ada

pter

)K9

R

Mag

netic

Rel

ay (Y

2S) (

A1P)

V1

R

Pow

er m

odul

e (A

2P)

C

ool/H

eat S

elec

tor

K10R

M

agne

tic R

elay

(Ope

ratio

n O

utpu

t) (A

1P) V

2R

Dio

de b

ridge

(A2P

) S1

S Se

lect

or s

witc

h (F

an/C

ool .

Hea

t)K1

1R

Mag

netic

Rel

ay (Y

5S) (

A1P)

X1

A , X

3A

Con

nect

or (Y

1E, Y

3E)

S2S

Sele

ctor

sw

itch

(Coo

l/Hea

t)

NO

TES)

1. T

his

wiri

ng d

iagr

am is

app

lied

only

to th

e ou

tsid

e un

it.2.

: F

ield

wiri

ng3.

: T

erm

inal

stri

p : C

onne

ctor

: T

erm

inal

: P

rote

ctiv

e ea

rth (s

crew

)4.

Whe

n us

ing

the

optio

n ad

apte

r, re

fer t

ot th

e in

stal

latio

n m

anua

l.5.

Ref

er to

the

inst

alla

tion

man

ual f

or c

onne

ctio

n w

iring

to in

door

-out

door

T

rans

mis

sion

F1

. F2,

out

door

-indo

or tr

ansm

issi

on F

1 . F

2, o

utdo

or-m

ulti

trans

mis

sion

Q1

. Q2

6. R

efer

to “S

ervi

ce P

reca

utio

n” la

bel (

on E

L, C

OM

PO, B

OX

CO

VER

), ho

w to

use

BS1

~BS5

and

DS1

sw

itch.

7. W

hen

oper

atin

g, d

o no

t sho

rt ci

rcui

t for

pro

tect

ion

devi

ce. (

S1PH

)8.

Be

sure

to c

onne

ct a

n in

terlo

ck c

ircui

t bet

wee

n th

e te

rmin

al (3

)-(4)

of t

erm

inal

stri

p (X

3M)

9. In

stal

l a h

eat s

ourc

e w

ater

pum

p op

erat

ion

circ

uit b

etw

een

the

term

inal

(1) -

(2) o

f ter

min

al s

trip

(X2M

), w

hen

inte

rlock

ing

a he

at

sour

ce w

ater

pum

p an

d sy

stem

ope

ratio

n.10

. Coo

l/hea

t sel

ecto

r can

not b

e co

nnec

ted

whe

n op

erat

ing

heat

reco

very

sys

tem

.11

. Col

ors:

BLK

: Bla

ck, R

ED: R

ed, B

lu: B

lue,

WH

T: W

hite

, PN

K: P

ink,

GRY

: Gra

y, O

RG

: Ora

nge


260 Appendix

2.2 Outside Unit Field WiringRWEYQ10MYL / RWEYQ20MYL / RWEYQ30MYL

3D04

8823

C

[Ope

ratio

n sy

stem

: Hea

t Rec

over

y]N

otes

1)

All

wiri

ng, c

ompo

nent

s an

d m

ater

ials

to b

e pr

ocur

ed o

n th

e si

te m

ust c

ompl

y w

ith th

e ap

plic

able

loca

l and

nat

iona

l co

des.

2) U

se c

oppe

r co

nduc

tors

onl

y.3)

As

for

deta

ils, s

ee w

iring

dia

gram

.4)

Inst

all c

ircui

t bre

aker

for

safe

ty.

5) A

ll fie

ld w

iring

and

com

pone

nts

mus

t be

prov

ided

by

licen

sed

elec

tric

ian.

6) U

nit s

hall

be g

roun

ded

in c

ompl

ianc

e w

ith th

e ap

plic

able

loca

l and

nat

iona

l cod

es.

7) W

iring

sho

wn

are

gene

ral p

oint

s-of

-con

nect

ion

guid

es o

nly

and

are

not i

nten

ded

for

or to

incl

ude

all d

etai

ls fo

r a

spec

ific

inst

alla

tion.

8) B

e su

re to

inst

all t

he s

witc

h an

d th

e fu

se to

the

pow

er li

ne o

f eac

h eq

uipm

ent.

9) I

nsta

ll th

e m

ain

switc

h th

at c

an in

terr

upt a

ll th

e po

wer

sou

rces

in a

n in

tegr

ated

man

ner

beca

use

this

sys

tem

cin

sist

s of

the

equi

pmen

t util

izin

g th

e m

ultip

le p

ower

sou

rces

.10

) If

ther

e ex

ists

the

poss

ibili

ty o

f rev

erse

d ph

ase,

lose

pha

se, m

omen

tary

bla

ckou

t or

the

pow

er

goes

on

and

off w

hile

the

prod

uct i

s op

erat

ing,

atta

ch a

rev

erse

d ph

ase

prot

ectio

n ci

rcui

t loc

ally

.R

unni

ng th

e pr

oduc

t in

reve

rsed

pha

se m

ay b

reak

the

com

pres

sor

and

othe

r pa

rts.

Whe

n th

e po

wer

sou

rce

is s

uppl

ied

to

each

out

side

uni

t ind

ivid

ually

<>

Whe

n th

e po

wer

sou

rce

is c

onne

cted

in

ser

ies

betw

een

the

units

.<

>O

utsi

de u

nits

Out

side

uni

ts

Pow

er s

uppl

y

Pow

er s

uppl

yP

ower

sup

ply

Pow

er s

uppl

y

Mai

n sw

itch

Mai

n sw

itch

Mai

n sw

itch

Mai

n sw

itch

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Fus

eF

use

Fus

e

Fus

eF

use

Fus

e

Fus

eF

use

Fus

eF

use

Fus

eF

use

Fus

eF

use

Fus

eF

use

Fus

eF

use

Fus

e

Fus

e

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

2 W

ires

cabl

e(T

rans

mis

sion

line

)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(T

rans

mis

sion

line

)

2 W

ires

cabl

eB

S u

nits

Indo

or u

nits

Coo

ling

only

uni

tC

oolin

g on

ly u

nit

BS

uni

ts

Indo

or u

nits

(Tra

nsm

issi

on li

ne)

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

2 W

ires

cabl

e(T

rans

mis

sion

line

)

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

2 W

ires

cabl

e(T

rans

mis

sion

line

)

2 W

ires

cabl

e(T

rans

mis

sion

line

)

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

[UN

IT 1

][U

NIT

2]

[UN

IT 3

][U

NIT

1]

[UN

IT 2

][U

NIT

3]


Appendix 261

RWEYQ10MYL / RWEYQ20MYL / RWEYQ30MYL

3D04

8824

C

[Ope

ratio

n sy

stem

: Hea

t Pum

p]N

otes

1)

All

wiri

ng, c

ompo

nent

s an

d m

ater

ials

to b

e pr

ocur

ed o

n th

e si

te m

ust c

ompl

y w

ith th

e ap

plic

able

loca

l and

nat

iona

l co

des.

2) U

se c

oppe

r co

nduc

tors

onl

y.3)

As

for

deta

ils, s

ee w

iring

dia

gram

.4)

Inst

all c

ircui

t bre

aker

for

safe

ty.

5) A

ll fie

ld w

iring

and

com

pone

nts

mus

t be

prov

ided

by

licen

sed

elec

tric

ian.

6) U

nit s

hall

be g

roun

ded

in c

ompl

ianc

e w

ith th

e ap

plic

able

loca

l and

nat

iona

l cod

es.

7) W

iring

sho

wn

are

gene

ral p

oint

s-of

-con

nect

ion

guid

es o

nly

and

are

not i

nten

ded

for

or to

incl

ude

all d

etai

ls fo

r a

spec

ific

inst

alla

tion.

8) B

e su

re to

inst

all t

he s

witc

h an

d th

e fu

se to

the

pow

er li

ne o

f eac

h eq

uipm

ent.

9) I

nsta

ll th

e m

ain

switc

h th

at c

an in

terr

upt a

ll th

e po

wer

sou

rces

in a

n in

tegr

ated

man

ner

beca

use

this

sys

tem

cin

sist

s of

the

equi

pmen

t util

izin

g th

e m

ultip

le p

ower

sou

rces

.10

) If

ther

e ex

ists

the

poss

ibili

ty o

f rev

erse

d ph

ase,

lose

pha

se, m

omen

tary

bla

ckou

t or

the

pow

er

goes

on

and

off w

hile

the

prod

uct i

s op

erat

ing,

atta

ch a

rev

erse

d ph

ase

prot

ectio

n ci

rcui

t loc

ally

.R

unni

ng th

e pr

oduc

t in

reve

rsed

pha

se m

ay b

reak

the

com

pres

sor

and

othe

r pa

rts.

Whe

n th

e po

wer

sou

rce

is s

uppl

ied

to

each

out

side

uni

t ind

ivid

ually

<>

Whe

n th

e po

wer

sou

rce

is c

onne

cted

in

ser

ies

betw

een

the

units

.<

>O

utsi

de u

nits

Pow

er s

uppl

y

Pow

er s

uppl

y

Mai

n sw

itch

Pow

er s

uppl

y

Mai

n sw

itch

Mai

n sw

itch

Pow

er s

uppl

y

Mai

n sw

itch

Sw

itch

Sw

itch

Sw

itch

Fus

e

Sw

itch

Fus

eF

use

Fus

e

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

2 W

ires

cabl

e(T

rans

mis

sion

line

)

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

2 W

ires

cabl

e(T

rans

mis

sion

line

)

[UN

IT 1

][U

NIT

2]

[UN

IT 3

]

Out

side

uni

ts

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

[UN

IT 1

][U

NIT

2]

[UN

IT 3

]

Indo

or u

nits

Indo

or u

nits

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Fus

eF

use

Fus

eF

use

Sw

itch

Fus

e

Sw

itch

Fus

e

Sw

itch

Fus

e

Sw

itch

Fus

e

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)


262 Appendix


3D05

2074

[Ope

ratio

n sy

stem

: Hea

t Rec

over

y]N

otes

1)

All

wiri

ng, c

ompo

nent

s an

d m

ater

ials

to b

e pr

ocur

ed o

n th

e si

te m

ust c

ompl

y w

ith th

e ap

plic

able

loca

l and

nat

iona

l co

des.

2) U

se c

oppe

r co

nduc

tors

onl

y.3)

As

for

deta

ils, s

ee w

iring

dia

gram

.4)

Ins

tall

circ

uit b

reak

er fo

r sa

fety

.5)

All

field

wiri

ng a

nd c

ompo

nent

s m

ust b

e pr

ovid

ed b

y lic

ense

d el

ectr

icia

n.

6) U

nit s

hall

be g

roun

ded

in c

ompl

ianc

e w

ith th

e ap

plic

able

loca

l and

nat

iona

l cod

es.

7) W

iring

sho

wn

are

gene

ral p

oint

s-of

-con

nect

ion

guid

es o

nly

and

are

not i

nten

ded

for

or to

incl

ude

all d

etai

ls fo

r a

spec

ific

inst

alla

tion.

8) B

e su

re to

inst

all t

he s

witc

h an

d th

e fu

se to

the

pow

er li

ne o

f eac

h eq

uipm

ent.

9) I

nsta

ll th

e m

ain

switc

h th

at c

an in

terr

upt a

ll th

e po

wer

sou

rces

in a

n in

tegr

ated

man

ner

beca

use

this

sys

tem

cin

sist

s of

the

equi

pmen

t util

izin

g th

e m

ultip

le p

ower

sou

rces

.10

) If

ther

e ex

ists

the

poss

ibili

ty o

f rev

erse

d ph

ase,

lose

pha

se, m

omen

tary

bla

ckou

t or

the

pow

er

goes

on

and

off w

hile

the

prod

uct i

s op

erat

ing,

atta

ch a

rev

erse

d ph

ase

prot

ectio

n ci

rcui

t loc

ally

.R

unni

ng th

e pr

oduc

t in

reve

rsed

pha

se m

ay b

reak

the

com

pres

sor

and

othe

r pa

rts.

Whe

n th

e po

wer

sou

rce

is s

uppl

ied

to

each

out

side

uni

t ind

ivid

ually

<>

Whe

n th

e po

wer

sou

rce

is c

onne

cted

in

ser

ies

betw

een

the

units

.<

>O

utsi

de u

nits

Pow

er s

uppl

y

Mai

n sw

itch

Pow

er s

uppl

y

Mai

n sw

itchSw

itch

Sw

itch

Sw

itch

Fus

e

Sw

itch

Fus

e

Sw

itch

Fus

e

Sw

itch

Fus

e

Sw

itch

Fus

e

Sw

itch

Fus

e

Sw

itch

Fus

e

Sw

itch

Fus

e

Sw

itch

Fus

e

Fus

eF

use

2 W

ires

cabl

e(T

rans

mis

sion

line

)

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

2 W

ires

cabl

e(T

rans

mis

sion

line

)

[UN

IT 1

][U

NIT

2]

[UN

IT 3

]

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

BS

uni

ts

Indo

or u

nits

Coo

ling

only

uni

t

Out

side

uni

ts

Pow

er s

uppl

yPow

er s

uppl

y

Mai

n sw

itch

Mai

n sw

itch

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Fus

eF

use

Fus

eF

use

Fus

e

Fus

eF

use

Fus

e

Fus

e

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line) Coo

ling

only

uni

t

BS

uni

ts

Indo

or u

nits

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

2 W

ires

cabl

e(T

rans

mis

sion

line

)

2 W

ires

cabl

e(T

rans

mis

sion

line

)

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

[UN

IT 1

][U

NIT

2]

[UN

IT 3

]


Appendix 263


3D05

2075

[Ope

ratio

n sy

stem

: Hea

t Pum

p]N

otes

1)

All

wiri

ng, c

ompo

nent

s an

d m

ater

ials

to b

e pr

ocur

ed o

n th

e si

te m

ust c

ompl

y w

ith th

e ap

plic

able

loca

l and

nat

iona

l co

des.

2) U

se c

oppe

r co

nduc

tors

onl

y.3)

As

for

deta

ils, s

ee w

iring

dia

gram

.4)

Ins

tall

circ

uit b

reak

er fo

r sa

fety

.5)

All

field

wiri

ng a

nd c

ompo

nent

s m

ust b

e pr

ovid

ed b

y lic

ense

d el

ectr

icia

n.

6) U

nit s

hall

be g

roun

ded

in c

ompl

ianc

e w

ith th

e ap

plic

able

loca

l and

nat

iona

l cod

es.

7) W

iring

sho

wn

are

gene

ral p

oint

s-of

-con

nect

ion

guid

es o

nly

and

are

not i

nten

ded

for

or to

incl

ude

all d

etai

ls fo

r a

spec

ific

inst

alla

tion.

8) B

e su

re to

inst

all t

he s

witc

h an

d th

e fu

se to

the

pow

er li

ne o

f eac

h eq

uipm

ent.

9) I

nsta

ll th

e m

ain

switc

h th

at c

an in

terr

upt a

ll th

e po

wer

sou

rces

in a

n in

tegr

ated

man

ner

beca

use

this

sys

tem

cin

sist

s of

the

equi

pmen

t util

izin

g th

e m

ultip

le p

ower

sou

rces

.10

) If

ther

e ex

ists

the

poss

ibili

ty o

f rev

erse

d ph

ase,

lose

pha

se, m

omen

tary

bla

ckou

t or

the

pow

er

goes

on

and

off w

hile

the

prod

uct i

s op

erat

ing,

atta

ch a

rev

erse

d ph

ase

prot

ectio

n ci

rcui

t loc

ally

.R

unni

ng th

e pr

oduc

t in

reve

rsed

pha

se m

ay b

reak

the

com

pres

sor

and

othe

r pa

rts.

Whe

n th

e po

wer

sou

rce

is s

uppl

ied

to

each

out

side

uni

t ind

ivid

ually

<>

Whe

n th

e po

wer

sou

rce

is c

onne

cted

in

ser

ies

betw

een

the

units

.<

>O

utsi

de u

nits

Out

side

uni

ts

Pow

er s

uppl

y

Pow

er s

uppl

y

Mai

n sw

itch

Pow

er s

uppl

y

Mai

n sw

itch

Mai

n sw

itch

Pow

er s

uppl

y

Mai

n sw

itch

Sw

itch

Sw

itch

Sw

itch

Fus

e

Sw

itch

Fus

eF

use

Fus

e

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

2 W

ires

cabl

e(T

rans

mis

sion

line

)

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

2 W

ires

cabl

e(T

rans

mis

sion

line

)

[UN

IT 1

][U

NIT

2]

[UN

IT 3

]

2 W

ires

cabl

e(T

rans

mis

sion

line

)2

Wire

s ca

ble

(Tra

nsm

issi

on li

ne)

[UN

IT 1

][U

NIT

2]

[UN

IT 3

]

Indo

or u

nits

Indo

or u

nits

Sw

itch

Sw

itch

Sw

itch

Sw

itch

Fus

eF

use

Fus

eF

use

Sw

itch

Fus

e

Sw

itch

Fus

e

Sw

itch

Fus

e

Sw

itch

Fus

e

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)

2 W

ires

cabl

e(P

ower

line)


264 Appendix

2.3 BS UnitBSVQ36MVJUBSVQ60MVJU

PR

INT

ED

CIR

CU

IT B

OA

RD

FU

SE

(

, 2

50V,

A)

LIG

HT

EM

ITT

ING

DIO

DE

(SE

RV

ICE

MO

NIT

OR

-GR

EE

N)

MA

GN

ET

IC R

ELA

YS

ELE

CT

RO

SW

ITC

H(S

ELEC

TION

OF

REM

OTE

CONT

ROLL

ER)

TRA

NS

FOR

ME

R (2

08-2

30V

/23V

)

TE

RM

INA

L S

TR

IP (P

OW

ER

)T

ER

MIN

AL

ST

RIP

(PO

WE

R)

TER

MIN

AL S

TRIP

(C/H

SEL

ECTO

R)

SO

LEN

OID

VA

LVE

(LIQ

UID

LIN

E)

4WAY

VA

LVE

(DIS

CH

AR

GE

LIN

E)

NO

ISE

FIL

TE

R (F

ER

ITE

CO

RE

)C

ON

NE

CT

R F

OR

OP

TIO

NA

L PA

RT

S

L1: R

ED

L1: B

LUE

TE

RM

INA

L,F

IELD

WIR

ING

WH

EN

US

ING

TH

E C

OO

L/H

EAT

SE

LEC

TOR

(OP

TIO

NA

L A

CC

ES

-S

OR

Y),

CO

NN

EC

T IT

TO

TE

RM

INA

LS A

, B A

ND

C O

N X

3M (A

1P).

IN T

HIS

CA

SE

, SE

T T

HE

SE

LEC

TOR

SW

ITC

H S

S1&

SS

2 O

N T

HE

A1P

A

CC

OR

DIN

G T

O B

ELO

W D

RA

WIN

G.

AS

FO

R W

IRIN

G T

O T

HE

IN/D

F1&

F2

AN

D O

UT

/D, B

S F

1&F

2 O

N X

2M, R

EF

ER

TO

INS

TALL

ATIO

N M

AN

UA

L.

BLU

:BLU

E O

RG

:OR

AN

GE

PN

K:P

INK

RE

D:R

ED

W

HT:

WH

ITE

YLW

:YE

LLO

W B

LK:B

LAC

K

TH

IS W

IRIN

G D

IAG

RA

M A

PP

LIE

S T

O T

HE

BS

UN

IT O

NLY

.S

YM

BO

LS S

HO

W A

S F

OLL

OW

S.

US

E C

OP

PE

R C

ON

DU

CTO

RS

ON

LY.

PO

WE

R S

UP

PLY

NO

TE

S:

BS

UN

IT T

OP

NO

TE

3

OUTDOOR UNIT

INDOOR UNIT

CO

NN

EC

TOR

,W

IRE

CLA

MP

CONN

ECTO

R (W

IRIN

G EX

TERN

AL C

ONTR

OL

ADAP

TOR

FOR

OUTD

OOR

UNIT)

ELE

CT

RIC

CO

MP

ON

EN

TS

BO

X

TRAN

SMIS

SION

WIR

ING

TO TH

E IN

DOOR

UNI

T

TRAN

SMIS

SION

WIR

ING

TO TH

E OU

TDOO

R UN

IT

OR O

THER

BS

UNIT


Appendix 265

2.4 Indoor UnitFXCQ20M / 25M / 32M / 63MVE

3D03

9556

A

NO

TE

S:

CONN

ECTO

R,CO

NNEC

TOR,

SYM

BOLS

SHO

WS

AS F

OLL

OW

S.

USE

COPP

ER C

OND

UCTO

RS O

NLY.

PO

WE

R S

UP

PLY

NO

TE-4

ELEC

TRIC

PAR

TS B

OX

WIR

ED R

EMO

TE C

ON

TRO

LLER

(OPT

ION

AL A

CC

ESSO

RY)

NO

TE-5

INP

UT

FRO

M O

UTS

IDE

NO

TE-3

TRA

NS

MIS

SIO

N W

IRIN

G

CE

NTR

AL

RE

MO

TE C

ON

TRO

L

NO

TE-4

REC

EIVE

R/D

ISPL

AY U

NIT

(WIR

ELES

S R

EMO

TE C

ON

TRO

LLER

)

PNK:

PINK

WHT

:WHI

TE Y

LW:Y

ELLO

W O

RG:O

RANG

EBL

U:BL

UE B

LK:B

LACK

RED

:RED

BRN

:BRO

WN

GRN

:GRE

EN

FIEL

D W

IRIN

G,

TERM

INAL

BLO

CK,

PRIN

TED

CIRC

UIT

BOAR

DCA

PACI

TOR

(M1F

)FU

SE (

� , 2

50V,

A)LIG

HT E

MITT

ING

DIOD

E(S

ERVI

CE M

ONITO

R-GR

EEN)

MAGN

ETIC

REL

AY (M

1F)

MAGN

ETIC

REL

AY (M

1S)

MAGN

ETIC

REL

AY (M

1P)

MOTO

R (IN

DOOR

FAN)

MOTO

R (D

RAIN

PUM

P)MO

TOR

(SW

ING

FLAP

)

INDO

OR U

NIT

WIR

ED R

EMOT

E CO

NTRO

LLER

THER

MIS

TOR

(AIR

)SE

LECT

OR

SWIT

CH

(MAI

N/SU

B)

THER

MO S

WIT

CH(M

1F E

MBED

DED)

THER

MIST

OR (A

IR)

THER

MIST

OR (C

OIL)

FLOA

T SW

ITCH

LIMIT

SW

ITCH

(SW

ING

FLAP

)TR

ANSF

ORME

R (22

0-240

V/22

V)TE

RMIN

AL B

LOCK

(POW

ER)

TERM

INAL

BLO

CK (C

ONTR

OL)

ELEC

TRON

ICEX

PANS

ION

VALV

E

RECE

IVER

/DIS

PLAY

UNI

T(A

TTAC

HED

TO W

IREL

ESS

REM

OTE

CONT

ROLL

ER)

CONN

ECTO

R FO

R OP

TION

AL PA

RTS

PRIN

TED

CIRC

UIT

BOAR

DPR

INTE

D CI

RCUI

T BO

ARD

PUSH

BUT

TON

(ON/

OFF)

LIGH

T EM

ITTI

NG D

IODE

(ON-

RED)

LIGH

T EM

ITTI

NG D

IODE

(TIM

ER-G

REEN

)

LIGH

T EM

ITTI

NG D

IODE

(F

ILTER

SIG

N-RE

D)LI

GHT

EMIT

TING

DIO

DE(D

EFRO

ST-O

RANG

E)SE

LECT

OR S

WIT

CH(M

AIN/

SUB)

SELE

CTOR

SW

ITCH

(WIR

ELES

S AD

DRES

S SE

T)

CONN

ECTO

R(W

IRIN

G AD

APTO

R FO

R EL

ECTR

ONIC

AL A

PPEN

DICE

S)CO

NNEC

TOR

(WIR

ELES

S RE

MOTE

CO

NTRO

LLER

)

IN C

ASE

USIN

G C

ENTR

AL R

EMOT

E CO

NTRO

LLER

, CO

NNEC

T IT

TO

THE

UN

IT IN

ACC

ORD

ANCE

WIT

H TH

E AT

TACH

ED IN

STRU

CTIO

N M

ANUA

L.

WHE

N CO

NNEC

TING

THE

INPU

T W

IRES

FRO

M O

UTSI

DE, F

ORC

ED O

FF O

N/O

FF C

ONT

ROL

OPE

RATI

ON

CAN

BE S

ELEC

TED

BY R

EMOT

E CO

NTRO

LLER

.IN

DET

AILS

, REF

ER T

O T

HE IN

STAL

LATI

ON

MAN

UAL

ATTA

CHED

THE

UNI

T.

X23A

IS C

ONN

ECTE

D W

HEN

THE

WIR

ELES

S RE

MOT

E CO

NTRO

LLER

KIT

IS B

EING

USE

D.


266 Appendix

FXCQ40M / 50M / 80M/ 125MVE

3D03

9557

A

NO

TE

S:

PO

WE

R S

UP

PLY

NO

TE-4

NO

TE-5

INP

UT

FRO

M O

UTS

IDE

ELE

CTR

IC P

AR

TS B

OX

NO

TE-3

TRA

NS

MIS

SIO

N W

IRIN

GC

EN

TRA

L R

EM

OTE

CO

NTR

OLL

ER

NO

TE-4

RE

CE

IVE

R/D

ISP

LAY

UN

IT(W

IRE

LES

S R

EM

OTE

CO

NTR

OLL

ER

)

WIR

ED R

EMO

TE C

ONT

ROLL

ER(O

PTIO

NAL

ACCE

SSO

RY)

Term

inal

blo

ck,

Fie

ld w

iring

Con

nect

or,

Term

inal

PRIN

TED

CIRC

UIT

BOAR

DCA

PACI

TOR

(M1F

)FU

SE (

� , 5

A, 25

0V)

LIGHT

EMI

TTIN

G DI

ODE

(SER

VICE

MON

ITOR-

GREE

N)MA

GNET

IC R

ELAY

(M1F

)MA

GNET

IC R

ELAY

(M1S

)MA

GNET

IC R

ELAY

(M1P

)MO

TOR

(INDO

OR FA

N)MO

TOR

(DRA

IN P

UMP)

MOTO

R (S

WIN

G FL

AP)

THER

MO S

WIT

CH(M

1F E

MBED

DED)

THER

MIST

OR(A

IR)

THER

MIST

OR(C

OIL)

INDO

OR U

NIT

FLOA

T SW

ITCH

LIMIT

SWITC

H(S

WIN

G FL

AP)

TRAN

SFOR

MER

(220-2

40V/

22V)

TERM

INAL

BLO

CK (P

OWER

)TE

RMIN

AL B

LOCK

(CON

TROL

)EL

ECTR

ONIC

EXPA

NSIO

N VA

LVE

LIGHT

EMI

TTIN

G DI

ODE

(ON-

RED)

LIGHT

EMI

TTIN

G DI

ODE

(TIM

ER-G

REEN

)LIG

HT E

MITT

ING

DIOD

E(F

ILTER

SIG

N-RE

D)LIG

HT E

MITT

ING

DIOD

E(D

EFRO

ST-O

RANG

E)SE

LECT

OR S

WITC

H(M

AIN/

SUB)

SELE

CTOR

SW

ITCH

(WIR

ELES

S AD

RESS

SET

)

CONN

ECTO

R(W

IRIN

G AD

APTO

R FO

R EL

ECTR

ONIC

AL A

PPEN

DICE

S)CO

NNEC

TOR

(WIR

ELES

S RE

MOTE

CO

NTRO

LLER

)

THER

MIST

OR (A

IR)

SELE

CTOR

SW

ITCH

(MAI

N/SU

B)

PRIN

TED

CIRC

UIT B

OARD

PRIN

TED

CIRC

UIT B

OARD

PUSH

BUT

TON

(ON/

OFF)

CONN

ECTO

R FO

R OP

TION

AL PA

RTS

RECE

IVER

/DIS

PLAY

UNI

T(AT

TACH

ED TO

WIR

ELES

S RE

MOT

E CO

NTRO

LLER

)

WIR

ED R

EMOT

E CO

NTRO

LLER

In c

ase

usin

g ce

ntra

l rem

ote

cont

rolle

r, co

nnec

t it to

the

unit i

n ac

cord

ance

with

the

atta

ched

inst

ruct

ion

man

ual.

X23A

is c

onne

cted

whe

n th

e wi

rele

ss re

mot

e co

ntro

ller k

it is

bein

g us

ed.

Whe

n co

nnec

ting

the

inpu

t wire

s fro

m o

utsid

e, fo

rced

off

or o

n/of

f con

trol o

pera

tion

can

be s

elec

ted

by re

mot

e co

ntro

ller.

In d

etai

ls, re

fer t

o th

e in

stal

latio

n m

anua

l atta

ched

the

unit.

Sym

bols

show

s as

follo

ws.

Use

copp

er c

ondu

ctor

s on

ly.

PNK:

Pink

WHT

:Whi

te Y

LW:Y

ello

w O

RG:O

rang

e BL

U:Bl

ue B

LK: B

lack

RED

:Red

BRN

:Bro

wn G

RN:G

reen


Appendix 267

FXFQ25M / 32M / 40M / 50M / 63M / 80M / 100M / 125MVE

3D03

9600

A

IND

OO

R U

NIT

PRIN

TED

CIRC

UIT

BOAR

D

(POW

ER S

UPPL

Y)

PRIN

TED

CIRC

UIT

BOAR

D

(CON

TROL

)

PRIN

TED

CIRC

UIT

BOAR

D

(TEM

PERA

TURE

SEN

SOR

UNIT

)

FUSE

(�, 5

A, 2

50V)

LIGH

T EM

ITTI

NG D

IODE

(SER

VICE

MON

ITOR

GRE

EN)

MAG

NETI

C RE

LAY

(M1P

)

MOT

OR (I

NDOO

R FA

N)

MOT

OR (D

RAIN

PUM

P)

MOT

OR (S

WIN

G FL

AP)

THER

MIS

TOR

(AIR

)

THER

MIS

TOR

(COI

L LI

QUID

)

THER

MIS

TOR

(COI

L GA

S)

FLOA

T SW

ITCH

TERM

INAL

BLO

CK

TERM

INAL

BLO

CK

ELEC

TRON

IC E

XPAN

SION

VALB

E

NOIS

E FI

LTER

POW

ER C

IRCU

IT

PRIN

TED

CIRC

UIT

BOAR

D

PRIN

TED

CIRC

UIT

BOAR

D

PUSH

BUT

TON

(ON/

OFF)

LIGH

T EM

ITTI

NG D

IODE

(ON-

RED)

LIGH

T EM

ITTI

NG D

IODE

(TIM

ER-G

REEN

)

LIGH

T EM

ITTI

NG D

IODE

(FILT

ER S

IGN-

RED)

LIGH

T EM

ITTI

NG D

IODE

(DEF

ROST

-ORA

NGE)

SELE

CTOR

SW

ITCH

(MAI

N/SU

B)

SELE

CTOR

SW

ITCH

(WIR

ELES

S AD

DRES

S SE

T)

CONN

ECTO

R

(WIR

ELES

S RE

MOTE

CON

TROL

LER)

CONN

ECTO

R

(ADA

PTOR

FOR

WIR

ING)

CONN

ECTO

R (G

ROUP

CON

TROL

ADAP

TOR)

THER

MIST

OR (A

IR)

SELE

CTOR

SW

ITCH

(MAI

N/SU

B)

RECE

IVER

/DIS

PLAY

UNI

T (A

TTAC

HED

TO W

IREL

ESS

REM

OTE

CONT

ROLL

ER)

CONN

ECTO

R FO

R OP

TION

AL PA

RTS

WIR

ED R

EMOT

E CO

NTRO

LLER

NOTE

S:

POW

ER S

UPPL

Y

SWIT

CH B

OX(IN

DOOR

UNI

T)

TRAN

SMIS

SION

WIR

ING

CENT

RAL

REM

OTE

CONT

ROLL

ER

RECE

IVER

/DIS

PLAY

UNI

T(W

IREL

ESS

REM

OTE

CONT

ROLL

ER)

INPU

T FR

OM O

UTSI

DE NOTE

2

NOTE

4

NOTE

3

Term

inal

blo

ckC

onne

ctor

Fie

ld w

iring

In c

ase

usin

g ce

ntra

l rem

ote

cont

rolle

r, co

nnec

t it t

o th

e un

it in

acc

orda

nce

with

the

atta

ched

inst

alla

tion

man

ual.

X24

A is

con

nect

ed w

hen

the

wire

less

rem

ote

cont

rolle

r ki

t is

bein

g us

ed.

Whe

n co

nnec

ting

the

inpu

t wire

s fr

om o

utsi

de, f

orce

d of

f or

on/

off c

ontr

ol o

pera

tion

can

be s

elec

ted

by r

emot

e co

ntro

ller.

In d

etai

ls, r

efer

to th

e in

stal

latio

n m

anua

l at

ache

d th

e un

it.

Rem

ote

cont

rolle

r m

odel

var

ies

acco

rdin

g to

the

com

bina

tion

syst

em, c

onfir

m e

ngin

eerin

g da

ta a

nd

cata

logs

, etc

, bef

ore

conn

ectin

g.C

onfir

m th

e m

etho

d of

set

ting

the

sele

ctor

sw

itch

(SS

1, S

S2)

of

wire

d re

mot

e co

ntro

ller

and

wire

less

rem

ote

cont

rolle

r by

in

stal

latio

n m

anua

l and

eng

inee

ring

data

, etc

.

Sym

bols

sho

ws

as fo

llow

s:R

ED

:Red

BLK

: Bla

ck W

HT

:Whi

te Y

LW:Y

ello

w G

RN

:Gre

enO

RG

:Ora

nge

BR

N:B

row

n P

NK

:Pin

k G

RY

:Gra

y B

LU:B

lue


268 Appendix

FXKQ25MA / 32MA / 40MA / 63MAVE

Pow

er s

uppl

yE

lect

ric p

arts

box

Not

e 4

Inpu

t fro

m o

utsi

deN

ote

3Tr

ansm

issi

on w

iring

Not

e 5

Not

es

Cen

tral

rem

ote

cont

rol

wire

d re

mot

e co

ntro

l(O

ptio

nal A

cces

sory

)

1.

Term

inal

blo

ck,

Con

nect

or,

Term

inal

2.

Fie

ld w

iring

3. I

n ca

se u

sing

cen

tral

rem

ote

cont

rol,

conn

ect i

t to

the

unit

in a

ccor

danc

e w

ith

the

atta

ched

inst

ruct

ion

man

ual.

4. W

hen

conn

ectin

g th

e in

put w

ires

from

out

side

, fro

ced

OF

F o

r O

N/O

FF

con

trol

op

erat

ion

can

be s

elec

ted

by r

emot

e co

ntro

l.In

det

ails

, ref

er to

the

inst

alla

tion

man

ual a

ttach

ed th

e un

it.5.

In

case

hig

h E

.S.P

. ope

ratio

n, c

hang

e ov

er th

e w

iring

con

nect

ion

from

X2A

to X

3A.

6. S

ymbo

ls s

how

as

follo

ws.

(P

NK

: Pin

k, W

HT:

Whi

te, Y

LW: Y

ello

w, O

RG

: Ora

nge,

B

LU: B

lue,

BLK

: Bla

ck, R

ED

: RE

D, B

RN

: Bro

wn,

GR

Y: G

ray)

7. U

se c

oppe

r co

nduc

tors

onl

y.

Indo

or u

nit

Prin

ted

circ

uit b

oard

Term

inal

boa

rd

Cap

acito

r (M

1F)

Fus

e (

� ,

5A, 2

50V

)

Ligh

t em

ittin

g di

ode

(Ser

vice

Mon

itor-

Gre

en)

Mag

netic

rel

ay (

M1F

)

Mag

netic

rel

ay (

M1S

)

Mag

netic

rel

ay (

M1P

)

Mot

or (

Indo

or F

an)

Mot

or (

Dra

in P

ump)

Mot

or (

Sw

ing

Fla

p)

The

rmo

Sw

itch

(M1F

Em

bedd

ed)

The

rmis

tor

(Air)

The

rmis

tor

(Coi

l)

Flo

at s

witc

h

Lim

it sw

itch

(Sw

ing

Flap

)

Tran

sform

er (2

20-2

40V/

22V)

Term

inal

blo

ck (P

ower

)

Term

inal

blo

ck (C

ontro

l)

Ele

ctro

nic

expa

nsio

n

valv

e

Wire

d R

emot

e C

ontr

ol

The

rmis

tor

(Air)

Sele

ctor

Swi

tch

(Mai

n/Su

b)

Con

nect

or F

or O

ptio

nal P

arts

Conn

ector

(Ada

pter F

or W

iring)

Conn

ecto

r (W

iring

Ada

pter

)

For E

lect

orica

l App

endi

ces)

3D03

9564

C


Appendix 269

FXDQ20P / 25P / 32PVE (with Drain Pump)

3D04

5500

C

TE

RM

INA

L

FIE

LD W

IRIN

G

NO

TE

S:

Con

trol B

ox

Pow

er

supp

ly

Prin

ted

circ

uit b

oard

Cap

acito

r (M

1F)

Fus

e (F

5A/2

50V

)Li

ght e

mitt

ing

diod

e(S

ervi

ce M

onito

r Gre

en)

Mag

netic

rela

y (M

1P)

Mot

or (I

ndoo

r Fan

)M

otor

(Dra

in P

ump)

Ther

mal

pro

tect

or (M

1F E

mbe

dded

)T

herm

isto

r (A

ir)T

herm

isto

r (C

oil-1

)T

herm

isto

r (C

oil-2

)F

loat

sw

itch

Tran

sfor

mer

(220

V/2

2V)

Pha

se c

ontro

l circ

uit

Term

inal

blo

ckTe

rmin

al b

lock

Ele

ctro

nic

expa

nsio

n va

lve

Noi

se fi

lter (

Ferr

ite C

ore)

Wire

d R

emot

e C

ontro

lT

herm

isto

r (A

ir)S

elec

tor S

witc

h (M

ain/

Sub

)C

onne

ctor

For

Opt

iona

l Par

tsC

onne

ctor

(Ada

ptor

For

Wiri

ng)

Con

nect

or (W

iring

Ada

ptor

Fo

r Ele

ctric

al A

pend

ices

)

Not

e 5

Inpu

t fro

m

outs

ide

trans

mis

sion

w

iring

cen

tral

rem

ote

cont

rol

Not

e 3

Wire

d re

mot

e co

ntro

l

CO

NN

EC

TOR

In c

ase

usin

g ce

ntra

l rem

ote

cont

rol,

conn

ect i

t to

the

unit

in a

ccor

danc

e w

ith th

e at

tach

ed in

stal

latio

n m

anua

l.R

emot

e co

ntro

l mod

el v

arie

s ac

cord

ing

to th

e co

mbi

natio

n sy

stem

, con

firm

eni

neer

ing

mat

eria

ls a

nd c

atal

ogs,

etc

. bef

ore

conn

ectin

g.W

hen

conn

ectin

g th

e in

put w

ires

from

out

side

, for

ced

OF

F o

r ON

/OF

F c

ontro

l ope

ratio

n ca

n be

sel

ecte

d by

rem

ote

cont

rol.

In d

etai

ls, r

efer

to th

e in

stal

latio

n m

anua

l atta

ched

the

unit.

Sym

bols

sho

w a

s fo

llow

s:

Red

: Red

B

LK: B

lack

W

HT:

Whi

te

YLW

: Yel

low

P

RP

: Pur

ple

GR

Y: G

ray

Blu

: Blu

e P

NK

: Pin

k O

rg: O

rang

e G

RN

: Gre

en


270 Appendix

FXDQ20P / 25P / 32PVET (without Drain Pump)

3D04

9604

A

TE

RM

INA

L

FIE

LD W

IRIN

G

NO

TE

S:

Con

trol B

ox

Pow

er

supp

ly

Prin

ted

circ

uit b

oard

Cap

acito

r (M

1F)

Fus

e (F

5A/2

50V

)Li

ght e

mitt

ing

diod

e(S

ervi

ce M

onito

r Gre

en)

Mot

or (I

ndoo

r Fan

)Th

erm

al p

rote

ctor

(M1F

Em

bedd

ed)

The

rmis

tor (

Air)

The

rmis

tor (

Coi

l-1)

The

rmis

tor (

Coi

l-2)

Tran

sfor

mer

(220

V/2

2V)

Pha

se c

ontro

l circ

uit

Term

inal

blo

ckTe

rmin

al b

lock

Ele

ctro

nic

expa

nsio

n va

lve

Noi

se fi

lter (

Ferr

ite C

ore)

Wire

d R

emot

e C

ontro

lT

herm

isto

r (A

ir)S

elec

tor S

witc

h (M

ain/

Sub

)C

onne

ctor

For

Opt

iona

l Par

tsC

onne

ctor

(Ada

ptor

For

Wiri

ng)

Con

nect

or (W

iring

Ada

ptor

Fo

r Ele

ctric

al A

pend

ices

)

Not

e 5

Inpu

t fro

m

outs

ide

trans

mis

sion

w

iring

cen

tral

rem

ote

cont

rol

Not

e 3

Wire

d re

mot

e co

ntro

l

CO

NN

EC

TOR

In c

ase

usin

g ce

ntra

l rem

ote

cont

rol,

conn

ect i

t to

the

unit

in a

ccor

danc

e w

ith th

e at

tach

ed in

stal

latio

n m

anua

l.R

emot

e co

ntro

l mod

el v

arie

s ac

cord

ing

to th

e co

mbi

natio

n sy

stem

, con

firm

eni

neer

ing

mat

eria

ls a

nd c

atal

ogs,

etc

. bef

ore

conn

ectin

g.W

hen

conn

ectin

g th

e in

put w

ires

from

out

side

, for

ced

OF

F o

r ON

/OF

F c

ontro

l ope

ratio

n ca

n be

sel

ecte

d by

rem

ote

cont

rol.

In d

etai

ls, r

efer

to th

e in

stal

latio

n m

anua

l atta

ched

the

unit.

Sym

bols

sho

w a

s fo

llow

s:

Red

: Red

B

LK: B

lack

W

HT:

Whi

te

YLW

: Yel

low

P

RP

: Pur

ple

GR

Y: G

ray

Blu

: Blu

e P

NK

: Pin

k O

rg: O

rang

e G

RN

: Gre

en


Appendix 271

FXDQ20NA / 25NA / 32NA / 40NA / 50NA / 63NAVE (with Drain Pump)

3D04

5500

C

TE

RM

INA

L

FIE

LD W

IRIN

G

NO

TE

S:

Con

trol B

ox

Pow

er

supp

ly

Prin

ted

circ

uit b

oard

Cap

acito

r (M

1F)

Fus

e (F

5A/2

50V

)Li

ght e

mitt

ing

diod

e(S

ervi

ce M

onito

r Gre

en)

Mag

netic

rela

y (M

1P)

Mot

or (I

ndoo

r Fan

)M

otor

(Dra

in P

ump)

Ther

mal

pro

tect

or (M

1F E

mbe

dded

)T

herm

isto

r (A

ir)T

herm

isto

r (C

oil-1

)T

herm

isto

r (C

oil-2

)F

loat

sw

itch

Tran

sfor

mer

(220

V/2

2V)

Pha

se c

ontro

l circ

uit

Term

inal

blo

ckTe

rmin

al b

lock

Ele

ctro

nic

expa

nsio

n va

lve

Noi

se fi

lter (

Ferr

ite C

ore)

Wire

d R

emot

e C

ontro

lT

herm

isto

r (A

ir)S

elec

tor S

witc

h (M

ain/

Sub

)C

onne

ctor

For

Opt

iona

l Par

tsC

onne

ctor

(Ada

ptor

For

Wiri

ng)

Con

nect

or (W

iring

Ada

ptor

Fo

r Ele

ctric

al A

pend

ices

)

Not

e 5

Inpu

t fro

m

outs

ide

trans

mis

sion

w

iring

cen

tral

rem

ote

cont

rol

Not

e 3

Wire

d re

mot

e co

ntro

l

CO

NN

EC

TOR

In c

ase

usin

g ce

ntra

l rem

ote

cont

rol,

conn

ect i

t to

the

unit

in a

ccor

danc

e w

ith th

e at

tach

ed in

stal

latio

n m

anua

l.R

emot

e co

ntro

l mod

el v

arie

s ac

cord

ing

to th

e co

mbi

natio

n sy

stem

, con

firm

eni

neer

ing

mat

eria

ls a

nd c

atal

ogs,

etc

. bef

ore

conn

ectin

g.W

hen

conn

ectin

g th

e in

put w

ires

from

out

side

, for

ced

OF

F o

r ON

/OF

F c

ontro

l ope

ratio

n ca

n be

sel

ecte

d by

rem

ote

cont

rol.

In d

etai

ls, r

efer

to th

e in

stal

latio

n m

anua

l atta

ched

the

unit.

Sym

bols

sho

w a

s fo

llow

s:

Red

: Red

B

LK: B

lack

W

HT:

Whi

te

YLW

: Yel

low

P

RP

: Pur

ple

GR

Y: G

ray

Blu

: Blu

e P

NK

: Pin

k O

rg: O

rang

e G

RN

: Gre

en


272 Appendix

FXDQ20N / 25N / 32N / 40N / 50N / 63NVET (without Drain Pump)

3D04

9604

A

TE

RM

INA

L

FIE

LD W

IRIN

G

NO

TE

S:

Con

trol B

ox

Pow

er

supp

ly

Prin

ted

circ

uit b

oard

Cap

acito

r (M

1F)

Fus

e (F

5A/2

50V

)Li

ght e

mitt

ing

diod

e(S

ervi

ce M

onito

r Gre

en)

Mot

or (I

ndoo

r Fan

)Th

erm

al p

rote

ctor

(M1F

Em

bedd

ed)

The

rmis

tor (

Air)

The

rmis

tor (

Coi

l-1)

The

rmis

tor (

Coi

l-2)

Tran

sfor

mer

(220

V/2

2V)

Pha

se c

ontro

l circ

uit

The

rmin

al b

lock

Term

inal

blo

ckE

lect

roni

c ex

pans

ion

valv

eN

oise

filte

r (Fe

rrite

Cor

e)W

ired

Rem

ote

Con

trolle

rT

herm

isto

r (A

ir)S

elec

tor S

witc

h (M

ain/

Sub

)C

onne

ctor

For

Opt

iona

l Par

tsC

onne

ctor

(Ada

ptor

For

Wiri

ng)

Con

nect

or (W

iring

Ada

ptor

Fo

r Ele

ctric

al A

pend

ices

)

Not

e 5

Inpu

t fro

m

outs

ide

trans

mis

sion

w

iring

cen

tral

rem

ote

cont

rol

Not

e 3

Wire

d re

mot

e co

ntro

l

CO

NN

EC

TOR

In c

ase

usin

g ce

ntra

l rem

ote

cont

rol,

conn

ect i

t to

the

unit

in a

ccor

danc

e w

ith th

e at

tach

ed in

stal

latio

n m

anua

l.R

emot

e co

ntro

l mod

el v

arie

s ac

cord

ing

to th

e co

mbi

natio

n sy

stem

, con

firm

eni

neer

ing

mat

eria

ls a

nd c

atal

ogs,

etc

. bef

ore

conn

ectin

g.W

hen

conn

ectin

g th

e in

put w

ires

from

out

side

, for

ced

OF

F o

r ON

/OF

F c

ontro

l ope

ratio

n ca

n be

sel

ecte

d by

rem

ote

cont

rol.

In d

etai

ls, r

efer

to th

e in

stal

latio

n m

anua

l atta

ched

the

unit.

Sym

bols

sho

w a

s fo

llow

s:

Red

: Red

B

LK: B

lack

W

HT:

Whi

te

YLW

: Yel

low

P

RP

: Pur

ple

GR

Y: G

ray

Blu

: Blu

e P

NK

: Pin

k O

rg: O

rang

e G

RN

: Gre

en


Appendix 273

FXSQ20M / 25M / 32M / 40M / 50M / 63M / 80M / 100M / 125MVE

3D03

9561

A

Indo

or u

nit

Prin

ted

circ

uit b

oard

Term

inal

boa

rdC

apac

itor

(M1F

)F

use

( �

,5A

, 250

V)

Ligh

t em

ittin

g di

ode

(ser

vice

mon

itor g

reen

)

Mag

netic

rela

y (M

1F)

Mag

netic

rela

y (M

1P)

Mot

or (i

ndoo

r fan

)M

otor

(dra

in p

ump)

Ther

mo

switc

h(M

1F e

mbe

dded

)

Mot

or (d

rain

pum

p)Th

erm

isto

r (co

il)Fl

oat s

witc

hTr

anso

rmer

220

-240

/22V

)Te

rmin

al b

lock

(pow

er)

Term

inal

blo

ck (c

ontro

l)El

ectrp

nic

expa

nsio

n va

lve

Opt

iona

l par

tsE

lect

ric h

eate

rFu

se (

� ,1

5A, 2

50V

)H

umid

ifier

Mag

nect

ic re

lay

(E1H

)H

umid

ifier

Term

inal

blo

ck (E

1H)

Wire

d re

mot

e co

ntro

lTh

erm

isto

r (ai

r)Se

lecto

r swi

tch (m

ain/su

b)A

dapt

er fo

r w

iring

Fuse

( �

,5A

, 250

V)

Mag

netic

rela

yM

agne

tic re

lay

Mag

netic

rela

y (E

1H)

Mag

netic

rela

y (H

u)C

onne

ctor

for o

ptio

nal p

arts

Conn

ector

(ada

pter fo

r wirin

g)Co

nnec

tor (w

iring a

dapte

r for

electo

rical

appe

ndice

s)

A1P

A2P

C1R

F1U

HA

P

K1R-K

3RK

PR

M1F

M1P

Q1M

R1T

R2T·R

3TR

1T

T1R

X1M

X2M

Y1E

E1H

F1U-F

3UH

uK

1MS

1HX

3M

R1T

SS

1

F1U·

F2U

KC

RK

FR

KH

RKH

uR

X16

AX

18A

Not

es:

Term

inal

blo

ckC

onne

ctor

Term

inal

Fie

ld w

iring

In c

ase

of u

sing

a c

entr

al r

emot

e co

ntro

l, co

nnec

t it t

o th

e un

it in

ac

cord

ance

with

the

atta

ched

inst

ruct

ion

man

ual.

Whe

n co

nnec

ting

the

inpu

t wire

s fr

om o

utsi

de, f

orce

d of

f or

on/ o

ff co

ntro

l ope

ratio

n ca

n be

sel

ecte

d by

rem

ote

conr

ol, i

n de

tails

, ref

er to

the

inst

alla

tion

man

ual a

ttach

ed to

the

unit.

.In

cas

e in

stal

ling

the

elec

tric

hea

ter,

exec

ute

the

addi

tiona

l wiri

ng fo

r he

ater

circ

uit (

K1M

, E1H

). In

this

cas

e, th

e m

ain

pow

er s

uppl

y ha

s to

be

supp

lied

inde

pend

ently

.In

cas

e of

hig

h or

lpw

E.S

.P. o

pera

tion,

cha

nge

over

the

wiri

ng c

onne

ctio

n fr

om X

4A(o

f A2P

) to

X3A

or

X5A

.S

ymbo

ls s

how

as

follo

ws.

(P

NK

:Pin

k W

HT

: Whi

te Y

LW: Y

ello

w G

RY

: Gra

y O

RG

: Ora

nge

BLU

: Blu

e B

LK: B

lack

RE

D: R

ed

BR

N: B

row

n G

RN

: Gre

en)

Use

cop

per

cond

ucto

rs o

nly.

Pow

er s

uppl

y

Not

e-5

Sep

arat

e po

wer

sup

ply

Terminals for operation indicator

Com

pres

sor

adap

ter

for

wiri

ng o

pera

tion

(opt

iona

l acc

esso

ry)

Fan

oper

atio

n

Not

e-4

Inpu

t fro

m o

utsi

de

Not

e-3

Tran

smis

sion

wiri

ng c

entr

al

rem

ote

cont

rol

Ele

ctric

par

ts b

ox

Wire

d re

mot

e co

ntro

l (op

tiona

l ac

cess

ory)

Not

e-6

Low

E. S

. P o

pera

tion

Hig

h E

.S.P

ope

ratio

n

Hig

h E

.S.P

ope

ratio

n(2

0 · 2

5 · 3

2 ty

pe)

(40

· 50

· 63

· 80

· 10

0 · 1

25 t

ype)

(80

· 100

·125

typ

e)

(20

· 25

· 32

· 40

· 50

typ

e)


274 Appendix

FXMQ40MA / 50MA / 63MA / 80MA / 100MA / 125MAVE

3D03

9620

B

Prin

ted

circ

uit b

oard

A2P

Term

inal

boa

rd

C1R

Cap

acito

r(M

1F)

F1U

Fus

e (�

, 5A

, 250

V)

40 ·

50 ·

63 ·

80 t

ype

Fus

e (�

, 10A

, 25

0V)

100

· 125

typ

eF

1U

HA

PLi

ght e

mitt

ing

diod

e (s

ervi

ce m

onito

r-gr

een)

Mag

netic

rel

ay(M

1F)

Mag

netic

rel

ay(M

1P)

K1R·

K3R

KP

R

Mot

or (

indo

or fa

n)M

1F

Q1M

The

rmo

switc

h(M

1F e

mbe

dded

)

Opt

iona

l par

ts

The

rmis

tor

(air)

Ther

mis

tor(

coil)

Flo

at s

witc

h

Tran

sfor

mer

(220

-240

V/2V

)

Term

inal

blo

ck(p

ower

)

Term

inal

blo

ck (c

ontro

l)

Ele

ctro

nic

expa

nsio

n va

lve

Mot

or (d

rain

pum

p)

Wire

d re

mot

e co

ntro

l

Sel

ecto

r sw

itch

(mai

n/su

b)

Mag

netic

rela

y

Con

nect

or fo

r opt

iona

l par

ts

Conn

ector

(wirin

g ada

pter fo

r ele

ctoric

al ap

pend

ices)

R1T

R2T-R

3T

S1L

T1R

X

1M

X2M

Y1E

M1P

SS

1

KF

R

X18

A

Not

es:

Term

inal

blo

ckC

onne

ctor

Fie

ld w

iring

In c

ase

of u

sing

a c

entr

al r

emot

e co

ntro

l, co

nnec

t it t

o th

e un

it in

ac

cord

ance

with

the

atta

ched

inst

ruct

ion

man

ual.

Whe

n co

nnec

ting

the

inpu

t wire

s fr

om o

utsi

de, f

orce

d of

f or

on/ o

ff co

ntro

l ope

ratio

n ca

n be

sel

ecte

d by

rem

ote

conr

ol, i

n de

tails

, ref

er to

the

inst

alla

tion

man

ual a

ttach

ed to

the

unit.

.In

cas

e in

stal

ling

the

elec

tric

hea

ter,

exec

ute

the

addi

tiona

l wiri

ng fo

r he

ater

circ

uit (

K1M

, E1H

). In

this

cas

e, th

e m

ain

pow

er s

uppl

y ha

s to

be

supp

lied

inde

pend

ently

.In

cas

e of

hig

h or

lpw

E.S

.P. o

pera

tion,

cha

nge

over

the

wiri

ng c

onne

ctio

n fr

om X

2A a

s sh

own

on u

pper

figu

re.

Sym

bols

sho

w a

s fo

llow

s. (

PN

K:P

ink

WH

T: W

hite

YLW

: Yel

low

OR

G: O

rang

e B

LU: B

lue

BLK

: Bla

ck R

ED

: Red

BR

N: B

row

n)U

se c

oppe

r co

nduc

tors

onl

y.

Term

inal

Not

es-5

Indo

or u

nit

A1P

The

rmis

tor

(air)

Ele

ctric

par

ts b

ox

Not

es-4

Inpu

t fro

m o

utsi

deN

otes

-3Ta

nsm

issi

on w

iring

Cen

tral

rem

ote

cont

rol

Wire

d re

mot

e co

ntro

l (o

ptio

nal a

cces

sory

)


Appendix 275

FXMQ200MA / 250MAVE

3D03

9621

B

WIR

ED

RE

MO

TE C

ON

TRO

L(O

PTI

ON

AL

AC

CE

SS

OR

Y)

PO

WE

R S

UP

PLY

NO

TE-4

INP

UT

FRO

M O

UTS

IDE

NO

TE-3

TRA

NS

MIS

SIO

N W

IRIN

G C

ER

EM

OTE

CO

NTR

OL

Prin

ted

circ

uit b

oard

Cap

acito

r (M

1F, 2

F)

Fus

e (

� ,5

A, 2

50V

)Li

ght e

mitt

ing

diod

e(s

ervi

ce m

onito

r-gr

een)

Mag

netic

con

tact

or (M

1F, 2

F)M

agne

tic c

onta

ctor

(M1F

, 2F)

Mag

netic

con

tact

or (M

1F, 2

F)M

agne

tic r

elay

(M

1F, 2

F)

Mag

netic

rel

ay (

M1P

)M

otor

(in

door

fan)

The

rmo

switc

h(M

1F e

mbe

dded

)

The

rmis

tor

(Air)

The

rmis

tor

(Coi

l)S

elec

tor

Sw

itch

(Sta

tic P

ress

ure)

Tr

ansf

orm

er (2

20-2

40V

/22V

)Te

rmin

al b

lock

(P

ower

)Te

rmin

al b

lock

Term

inal

blo

ck (

Con

trol

)E

lect

roni

c ex

pans

ion

valv

eO

ptio

nal P

arts

Mot

or (

Dra

in p

ump)

Wire

d re

mot

e co

ntro

lT

herm

isto

r (A

ir)S

elec

tor

switc

h (M

ain/

Sub

)C

onne

ctor

for

optio

nal p

arts

Con

nect

or (

Flo

at S

witc

h)C

onne

ctor

(W

iring

Ada

pter

F

or E

lect

oric

al A

ppen

dice

s)

Indo

or u

nit

In c

ase

usin

g ce

ntra

l rem

ote

cont

rol,

conn

ect i

t to

the

unit

in a

ccor

danc

e w

ith th

e at

tach

ed in

stru

ctio

n m

anua

l.W

hen

conn

ectin

g th

e in

put w

ires

from

out

side

, for

ced

off o

r on

/off

cont

rol o

pera

tion

can

be s

elec

ted

by r

emot

e co

ntro

l, in

de

tails

, ref

er to

the

inst

alla

tion

man

ual a

ttach

ed th

e un

it.

Sym

bols

sho

w a

s fo

llow

s. (P

NK

: Pin

k W

HT:

Whi

te Y

LW: Y

ello

w

OR

G: O

rang

e B

LU:B

lue

BLK

: Bla

ck R

ED

: Red

BR

N: B

row

n)

In c

ase

inst

allin

g th

e dr

ain

pum

p, re

mov

e th

e sh

ort c

ircui

t con

nect

or o

f X

8A a

nd e

xecu

te th

e ad

ditio

nal w

iring

for f

loat

sw

itch

and

drai

n pu

mp.

Use

cop

per

cond

ucto

rs o

nly.

In c

ase

high

E.S

.P. o

pera

tion,

cha

nge

the

switc

h (S

S)

for

“H”.

Not

es:

Term

inal

blo

ckC

onne

ctor

Sho

rt c

ircui

t con

nect

orTe

rmin

alF

ield

wiri

ng


276 Appendix

FXHQ32MA / 63MA / 100MAVE

3D03

9801

D

Indo

or u

nit

Opt

iona

l par

ts

Prin

ted

circu

it bo

ard

Capa

citor

(M1F

)Fu

se (�

, 5A,

250

V)Li

ght e

mitt

ing

diod

e(s

ervic

e m

onito

r-gre

en)

Mag

netic

relay

(M1S

)M

agne

tic re

lay (M

1P)

Mot

or (i

ndoo

r fan

)M

otor

(swi

ng fl

ap)

Ther

mo

switc

h (M

1F e

mbe

dded

)Th

erm

istor

(AIR

)Th

erm

istor

(coi

l liqu

id)

Ther

mist

or (c

oil g

as)

Lim

it sw

itch

(swi

ng fl

ap)

Tran

sform

er (2

20-2

40V/

22V)

Term

inal

blo

ck (p

ower

)Te

rmin

al b

lock

(con

trol)

Elec

troni

c ex

pans

ion

valve

Phas

e co

ntro

l circ

uit

Mot

or (d

rain

pum

p)

Ther

mist

or (A

IR)

Sele

ctor

switc

h (m

ain/

sub)

Prin

ted

circu

it bo

ard

Prin

ted

circu

it bo

ard

Push

but

ton

(on/

off)

Ligh

t em

ittin

g di

ode

(on-

red)

Ligh

t em

ittin

g di

ode

(tim

er-g

reen

)

Wire

d re

mot

e co

ntro

l

Wire

d re

mot

e co

ntro

l

NOTE

SNo

te 5

Note

4

Note

6

Inpu

t fro

m

outs

ide

Tran

smiss

ion

wirin

g ce

ntra

l rem

ote

cont

rol

Rece

iver/d

isplay

uni

t (w

irele

ss re

mot

e co

ntro

ller)

Note

3

POW

ER S

UPPL

Y

Term

inal

blo

ckCo

nnec

tor

Elec

tric

parts

box

Wire

d re

mot

e co

ntro

ller

(opt

iona

l acc

esso

ry)

In c

ase

usin

g ce

ntra

l rem

ote

cont

rolle

r, co

nnec

t it

to th

e un

it in

acc

orda

nce

with

the

atta

ched

in

stru

ctio

n m

anua

l.X2

3A is

con

nect

ed w

hen

the

wire

less

rem

ote

cont

rol k

it is

bein

g us

ed.

Whe

n co

nnec

ting

the

inpu

t wire

s fro

m o

utsid

e, fo

rced

off

or o

n/of

f con

trol

oper

atio

n ca

n be

sel

ecte

d by

rem

ote

cont

rolle

r. In

det

ails,

refe

r to

the

inst

alla

tion

man

ual a

ttach

ed th

e un

it.

In c

ase

inst

allin

g th

e dr

ain

pum

p, re

mov

e th

e sh

ort c

ircui

t con

nect

or o

f X8A

an

d ex

ecut

e th

e ad

ditio

nal w

iring

for f

loat

switc

h an

d dr

ain

pum

p.

Use

copp

er c

ondu

ctor

s on

ly.

PNK:

Pin

k WHT

: Whi

te Y

LW: Y

ellow

ORG

: Ora

nge

BLU:

Blu

e BL

K: B

lack

RED

: Red

Sym

bols

show

as

follo

ws.

Fiel

d wi

ring

Rece

iver/d

isplay

uni

t (at

tach

ed to

wi

rele

ss re

mot

e co

ntro

l)

Ligh

t em

ittin

g di

ode

(filte

r sig

n-re

d)Li

ght e

mitt

ing

diod

e(d

efro

st-o

rang

e)Se

lect

or sw

itch

(mai

n/su

b)Se

lect

or sw

itch

(wire

less

add

ress

set

)

Conn

ecto

r (flo

at sw

itch)

Conn

ecto

r (wi

ring

adap

tor f

or

elec

trica

l app

endi

ces

Conn

ecto

r (wi

rele

ss re

mot

e co

ntro

ller)

Show

s sho

rt cir

cuit c

onne

ctor.


Appendix 277

FXAQ20MA / 25MA / 32MA / 40MA / 50MA / 63MAVE

3D03

4206

C

Indo

or u

nit

PO

WE

R S

UP

PLY

Prin

ted

circ

uit b

oard

Fus

e (

� ,5

A, 2

50V

)

Ligh

t em

ittin

g di

ode

(ser

vice

mon

itor

gree

n)

Mot

or (

Indo

or F

an)

Mot

or (

Sw

ing

Fla

p)

The

rmis

tor

(AIR

)

The

rmis

tor

(Coi

l Liq

uid

Pip

e)

The

rmis

tor

(Coi

l Gas

Pip

e)

Term

inal

Blo

ck (

cont

rol)

Term

inal

Blo

ck (

Pow

er)

Ele

ctro

nic

expa

nsio

n va

lve

Pow

er c

ircui

t

Prin

ted

circ

uit b

oard

Prin

ted

circ

uit b

oard

Pus

h bu

tton

(ON

/OF

F)

Ligh

t em

ittin

g di

ode

(ON

-RE

D)

Ligh

t em

ittin

g di

ode

(tim

er-g

reen

)

Ligh

t em

ittin

g di

ode

(Filt

er s

ign-

red)

Ligh

t em

ittin

g di

ode

(Def

rost

-ore

nge)

Sel

ecto

r sw

itch

(MA

IN/S

UB

)

Sel

ecto

r sw

itch

(wire

less

add

ress

set

)T

herm

isto

r (A

IR)

Sel

ecto

r sw

itch

(MA

IN/S

UB

)

Con

nect

or (

float

sw

itch)

Con

nect

or (

grou

p co

ntro

l ada

ptor

)

Rec

eive

r/di

spla

y un

it (a

ttach

ed to

wire

less

rem

ote

cont

rolle

r)

Wire

rem

ot c

ontr

olC

onne

ctor

for

optio

nal p

arts

Not

es:

Term

inal

Fie

ld w

iring

In c

ase

usin

g ce

ntra

l rem

ote

cont

rol,

conn

ect i

t to

the

unit

in a

ccor

danc

e w

ith th

e at

tach

ed in

stal

latio

n m

anua

l.

Sym

bols

sho

ws

as fo

llow

s: R

ED

:Red

WH

T:W

hite

GR

N:G

reen

P

NK

:Pin

k Y

LW: Y

ello

w B

LK:B

lack

OR

G: O

rang

e B

RN

:Bro

wn

BLU

:Blu

e

Whe

n co

nnec

ting

the

inpu

t wire

s fr

om

outs

ide,

forc

ed o

ff or

on/

off c

ontr

ol

oper

atio

n ca

n be

sel

ecte

d by

rem

ote

cont

rol,

in d

etai

ls, r

efer

to th

e in

stal

la-

tion

man

ual a

tach

ed th

e un

it.

Rem

ote

cont

rol m

odel

var

ies

acco

rdin

g to

the

com

bina

tion

syst

em, c

onfir

m

engi

neer

ing

data

and

cat

alog

s, e

tc,

befo

re c

onne

ctin

g.C

onfir

m th

e m

etho

d of

set

ting

the

sele

ctor

sw

itch

(SS

1, S

S2)

of w

ired

rem

ote

cont

rol a

nd w

irele

ss r

emot

e co

ntro

l by

inst

alla

tion

man

ual a

nd

engi

neer

ing

data

, ET

C.

X24

A is

con

nect

ed w

hen

the

wire

less

re

mot

e co

ntro

ller

kit i

s be

ing

used

.

Sho

ws

shor

t circ

uit c

onne

ctor

.

Con

nect

or

Con

trol

box

Sid

eFr

ont

Not

e 8

Not

e 8

Not

e 5

Not

e 2

Rec

eive

r/di

spla

y un

it(w

irele

ss r

emot

e co

ntro

l)

Inpu

t fro

m o

utsi

de

Tran

smis

sion

wiri

ng

cent

ral r

emot

e co

ntro

l

Wire

d re

mot

e co

ntro

l

(Ind

oor

unit)

Con

nect

or


278 Appendix

FXLQ20 · 25 · 32 · 40 · 50 · 63MAVEFXNQ20 · 25 · 32 · 40 · 50 · 63MAVE

3D03

9826

D

Indo

or u

nit

In c

ase

usin

g ce

ntra

l rem

ote

cont

rol,

conn

ect i

t to

the

unit

in

acco

rdan

ce w

ith th

e at

tach

ed in

stru

ctio

n m

anua

l.

PO

WE

R S

UP

PLY

WIR

ED

RE

MO

TE C

ON

TRO

L(O

PTI

ON

AL

AC

CE

SS

OR

Y)

CO

NTR

OL

BO

X

NO

TE-4

INP

UT

FRO

M O

UTS

IDE

NO

TE-3

TRA

NS

MIS

SIO

N W

IRIN

G

CE

NTR

AL

RE

MO

TE C

ON

TRO

L

Whe

n co

nnec

ting

the

inpu

t wire

s fr

om o

utsi

de, f

orce

d of

f or

on/o

ff co

ntro

l ope

ratio

n ca

n be

sel

ecte

d by

rem

ote

cont

rolle

r, in

det

ails

, ref

er to

the

inst

alla

tion

man

ual a

ttach

ed th

e un

it.

Sym

bols

sho

w a

s fo

llow

s. (

PN

K: P

ink

WH

T:

Whi

te Y

LW: Y

ello

w

OR

G: O

rang

e B

LU:B

lue

BLK

: Bla

ck R

ED

: Red

BR

N: B

row

n)

Use

cop

per

cond

ucto

rs o

nly.

Prin

ted

circ

uit b

oard

Cap

acito

r (M

1F)

Fus

e (

� ,5

A, 2

50V

)Li

ght e

mitt

ing

diod

e(s

ervi

ce m

onito

r-gr

een)

Mag

netic

rel

ay (

M1F

)M

otor

(in

door

fan)

The

rmo

switc

h(M

1F e

mbe

dded

)T

herm

isto

r (A

IR)

The

rmis

tor

(CO

IL)

Tran

sfor

mer

(22

0-24

0V/2

2V)

Term

inal

blo

ck (

pow

er)

Term

inal

blo

ck (

cont

rol)

Ele

ctro

nic

expa

nsio

n va

lve

The

rmis

tor

(AIR

)S

elec

tor

switc

h (M

AIN

/SU

B)

Con

nect

or (

wiri

ng a

dapt

or fo

r el

ectr

onic

al a

ppen

dice

s)

Wire

d re

mot

e co

ntro

l

Con

nect

or fo

r op

tiona

l par

ts

Not

es:

Term

inal

blo

ckC

onne

ctor

Term

inal

Fie

ld w

iring

SiEN30-602 List of Electrical and Functional Parts

Appendix 279

3. List of Electrical and Functional Parts3.1 Outside Unit3.1.1 RWEYQ10MYL

3.1.2 RWEYQ10MTL

Item Name SymbolModel

RWEYQ10MYL

Compressor InverterType

M1CJT1G-VDKYR@T

OC protection device 13.5A

Electronic expansion valve (Main) Y1E Fully closed: 0pls Fully open: 2000plsElectronic expansion valve (Subcool) Y2E Fully closed: 0pls Fully open: 2000pls

Pressure protection

High pressure switch For M1C HPS OFF: 4.0 MPa ON: 3.0±0.15MPa

Low pressure sensor S1NPL OFF: 0.07MPaFusible plug � Open: 70~75°C

Temperature protection

Discharge gas temperature protection(Discharge pipe thermistor)

R3T OFF: 135°C

Inverter fin temperature protection(Radiator fin thermistor)

R1T OFF: 98°C

Others Fuse

For main PC board

F1U 250V AC 10A Class BF2U 250V AC 10A Class B

For Noise filter PC board F1U 250V AC 5A Class B

+0−0.12

Item Name SymbolModel

RWEYQ10MTL

Compressor InverterType

M1CJT100G-VDK@S3

OC protection device 24.0A

Electronic expansion valve (Main) Y1E Fully closed: 0pls Fully open: 2000plsElectronic expansion valve (Subcool) Y2E Fully closed: 0pls Fully open: 2000pls

Pressure protection

High pressure switch For M1C HPS OFF: 4.0 MPa ON: 3.0±0.15MPa

Low pressure sensor S1NPL OFF: 0.07MPaFusible plug � Open: 70~75°C

Temperature protection

Discharge gas temperature protection(Discharge pipe thermistor)

R3T OFF: 135°C

Inverter fin temperature protection(Radiator fin thermistor)

R1T OFF: 98°C

Others Fuse

For main PC board

F1U 250V AC 10A Class BF2U 250V AC 10A Class B

For Noise filter PC board F1U 250V AC 5A Class B

+0−0.12

List of Electrical and Functional Parts SiEN30-602

280 Appendix

3.2 Indoor Side3.2.1 Indoor Unit

Parts Name SymbolModel

RemarkFXFQ25MVE

FXFQ32MVE

FXFQ40MVE

FXFQ50MVE

FXFQ63MVE

FXFQ80MVE

FXFQ100MVE

FXFQ125MVE

RemoteController

Wired Remote Control BRC1C62OptionInfrared Remote

Control BRC7E61W

Motors

Fan Motor M1F DC380V 30W 8P DC 380V 120W 8P

Drain Pump M1PAC220-240V (50Hz) AC220V (60Hz)

PLD-12230DMThermal Fuse 145°C

Swing Motor M1S MP35HCA[3P007482-1]Stepping Motor DC16V

Thermistors

Thermistor (Suction Air) R1T In PC board A4P or wired remote controlThermistor (for Heat Exchanger High Temp.) R3T ST8605-5 φ8 L1000

20kΩ (25°C)Thermistor (Heat Exchanger) R2T ST8602A-5 φ6 L1000

20kΩ (25°C)

Others

Float Switch S1L FS-0211BFuse F1U 250V 5A φ5.2Thermal Fuse TFu �Transformer T1R �


RemarkFXCQ20MVE

FXCQ25MVE

FXCQ32MVE

FXCQ40MVE

FXCQ50MVE

FXCQ63MVE

FXCQ80MVE

FXCQ125MVE

RemoteController

Wired Remote Control BRC1A61OptionInfrared Remote

Control BRC7C62

Motors

Fan Motor M1F

AC 220~240V 50Hz1φ10W 1φ15W 1φ20W 1φ30W 1φ50W 1φ85W

Thermal Fuse 152°C � Thermal protector 135°C : OFF 87°C : ON

Drain Pump M1PAC220-240V (50Hz) AC220V (60Hz)


Swing Motor M1S MT8-L[3PA07509-1]AC200~240V

Thermistors

Thermistor (Suction Air) R1T ST8601-6 φ4 L125020kΩ (25°C)

Thermistor (for Heat Exchanger High Temp.) R3T ST8605-6 φ8 L1250


20kΩ (25°C)

OthersFloat Switch S1L FS-0211BFuse F1U 250V 5A φ5.2Transformer T1R TR22H21R8


Appendix 281

∗only for FXDQ20~63N(A)VE, FXDQ20~32PVE (with Drain Pump Type)


RemarkFXKQ25MAVE

FXKQ32MAVE

FXKQ40MAVE

FXKQ63MAVE

RemoteController

Wired Remote Control BRC1C62 OptionInfrared Remote Control BRC4C61

Motors

Fan Motor M1F

AC 220~240V 50Hz1φ15W 4P 1φ20W 4P 1φ45W 4P

Thermal Fuse 146°C Thermal protector 120°C : OFF 105°C : ON

Drain Pump M1PAC 220-240V (50Hz)


Swing Motor M1S MP35HCA [3P080801-1]AC200~240V

Thermistors




20kΩ (25°C)


Parts Name Symbol

Model

RemarkFXDQ20N(A)VE(T),

PVE(T)

FXDQ25N(A)VE(T),

PVE(T)

FXDQ32N(A)VE(T),

PVE(T)FXDQ

40N(A)VE(T)FXDQ

50N(A)VE(T)FXDQ

63N(A)VE(T)

RemoteController


Control BRC4C62

Motors

Fan Motor M1F

AC 220~240V 50Hz1φ62W 1φ130W

Thermal protector130°C: OFF, 83°C: ON

Drain Pump M1PAC220-240V (50Hz)


*

Thermistors

Thermistor (Suction Air) R1T ST8601-1 φ4 L=25020kΩ (25°C)

Thermistor (for Heat Exchanger High Temp.) R3T ST8605-4 φ8 L=800

20kΩ (25°C)Thermistor (Heat Exchanger) R2T ST8602A-4 φ6 L=800

20kΩ (25°C)

OthersFloat Switch S1L FS-0211E *Fuse F1U 250V 5A φ5.2Transformer T1R TR22H21R8


282 Appendix


RemarkFXSQ20MVE

FXSQ25MVE

FXSQ32MVE

FXSQ40MVE

FXSQ50MVE

FXSQ63MVE

FXSQ80MVE

FXSQ100MVE

FXSQ125MVE

RemoteController


Control BRC4C62

Motors

Fan Motor M1F

AC 220~240V 50Hz

1φ50W 1φ65W 1φ85W 1φ125W 1φ225W

Thermal Fuse 152°C Thermal protector 135°C : OFF 87°C : ON

Drain Pump M1PAC220-240V (50Hz)


Thermistors




20kΩ (25°C)



RemarkFXMQ40MAVE

FXMQ50MAVE

FXMQ63MAVE

FXMQ80MAVE

FXMQ100MAVE

FXMQ125MAVE

FXMQ200MAVE

FXMQ250MAVE

RemoteController


Control BRC4C62

MotorsFan Motor M1F

AC 220~240V 50Hz1φ100W 1φ160W 1φ270W 1φ430W 1φ380W×2

Thermal protector 135°C : OFF 87°C : ON

Capacitor for Fan Motor C1R 5μ F-400V 7μ F 400V

10μ F400V

8μ F400V

10μ F400V

12μ F400V

Thermistors

Thermistor (Suction Air) R1T ST8601A-5 φ4 L100020kΩ (25°C)

ST8601A-13φ4 L630

Thermistor (for Heat Exchanger High Temp.) R3T ST8605A-4 φ8 L800

20kΩ (25°C)ST8605A-5 φ8 L1000

Thermistor (Heat Exchanger) R2T ST8602A-4 φ6 L800

20kΩ (25°C)ST8602A-6 φ6 L1250

OthersFloat switch S1L FS-0211Fuse F1U 250V 5A φ5.2 250V 10A φ5.2 250V 10ATransformer T1R TR22H21R8


Appendix 283


RemarkFXHQ32MAVE

FXHQ63MAVE

FXHQ100MAVE

RemoteController

Wired Remote Control BRC1C62 OptionInfrared Controller BRC7E63W

Motors

Fan Motor M1FAC 220~240V/220V 50Hz/60Hz

1φ63W 1φ130WThermal protector 130°C : OFF 80°C : ON

Capacitor for Fan Motor C1R 3.0μF-400V 9.0μF-400V

Swing Motor M1S MT8-L[3P058751-1]AC200~240V

Thermistors

Thermistor (Suction Air) R1T ST8601A-1 φ4 L25020kΩ (25°C)

Thermistor (for Heat Exchanger High Temp.) R3T ST8605-6 φ8 L = 1250

20kΩ (25°C)ST8605-6 φ8 L = 1250

20kΩ (25°C)Thermistor (Heat Exchanger) R2T ST8602A-6 φ6 L = 1250

20kΩ (25°C)ST8602A-6 φ6 L = 1250

20kΩ (25°C)

OthersFuse F1U 250V 5A φ5.2Transformer T1R TR22H21R8


RemarkFXAQ20MAVE

FXAQ25MAVE

FXAQ32MAVE

FXAQ40MAVE

FXAQ50MAVE

FXAQ63MAVE

RemoteController


Control BRC7E618

MotorsFan Motor M1F

AC 220~240V 50Hz1φ40W 1φ43W

Thermal protector 130°C : OFF 80°C : ON

Swing Motor M1S MP24 [3SB40333-1]AC200~240V

MSFBC20C21 [3SB40550-1]AC200~240V

Thermistors



20kΩ (25°C)Thermistor (for Heat Exchanger) R2T ST8602-2 φ6 L400

20kΩ (25°C)

OthersFloat Switch S1L OPTION

Fuse F1U 250V 5A φ5.2


284 Appendix


RemarkFXLQ20MAVE

FXLQ25MAVE

FXLQ32MAVE

FXLQ40MAVE

FXLQ50MAVE

FXLQ63MAVE

RemoteController


Control BRC4C62

MotorsFan Motor M1F

AC 220~240V 50Hz1φ15W 1φ25W 1φ35W

Thermal protector 135°C : OFF 120°C : ONCapacitor for Fan Motor C1R 1.0μF-400V 0.5μF-400V 1.0μF-400V 1.5μF-400V 2.0μF-400V

Thermistors



20kΩ (25°C)Thermistor (for Heat Exchanger) R2T ST8602A-9 φ6 L2500

20kΩ (25°C)

OthersFuse F1U AC250V 5ATransformer T1R TR22H21R8


RemarkFXNQ20MAVE

FXNQ25MAVE

FXNQ32MAVE

FXNQ40MAVE

FXNQ50MAVE

FXNQ63MAVE

RemoteController


Control BRC4C62

MotorsFan Motor M1F

AC 220~240V 50Hz1φ15W 1φ25W 1φ35W

Thermal protector 135°C : OFF 120°C : ONCapacitor for Fan Motor C1R 1.0μF-400V 0.5μF-400V 1.0μF-400V 1.5μF-400V 2.0μF-400V

Thermistors



20kΩ (25°C)Thermistor (for Heat Exchanger) R2T ST8602A-9 φ6 L2500

20kΩ (25°C)

OthersFuse F1U AC250V 5ATransformer T1R TR22H21R8

SiEN30-602 Option List

Appendix 285

4. Option List4.1 Optional Accessories

NOTE)1. Refer to the latest drawing.2. In the case of heat recovery system, COOL/HEAT Selector cannot be connected.

3D052730

Models

KRC19-26AKJB111A

DTA104A62

Optional accessories

Refnet header

Refnet joint

Outside unit multi connection piping kit

COOL/HEAT SelectorFixing box

External control adaptor for outdoor unit

Dis

trib

utiv

e pi

ping

RWEYQ10MYLRWEYQ10MTL



KHRP25M33H(Max. 8 branch)

KHRP26M22H, KHRP26M33H(Max. 4 branch) (Max. 8 branch)

KHRP25M22T, KHRP25M33T, KHRP26M22T, KHRP26M33T

KHRP25M22T, KHRP25M33T, KHRP25M72T, KHRP26M22T, KHRP26M33T, KHRP26M72T

BHFP22MA56,BHFP26MA56

BHFP22MA84BHFP26MA84

KHRP25M22T, KHRP25M33T, KHRP25M72T, KHRP25M73T, KHRP26M22T, KHRP26M33T, KHRP26M72T, KHRP26M73T

KHRP25M33H, KHRP25M72H(Max. 8 branch) (Max. 8 branch)

KHRP26M22H, KHRP26M33H, KHRP26M72H(Max. 4 branch) (Max. 8 branch) (Max. 8 branch)

KHRP25M33H, KHRP25M72H, KHRP25M73H(Max. 8 branch), (Max. 8 branch) (Max. 8 branch)

KHRP26M22H, KHRP26M33H, KHRP26M72H, KHRP26M73H(Max. 4 branch) (Max. 8 branch) (Max. 8 branch) (Max. 8 branch)

Thermistor Resistance / Temperature Characteristics SiEN30-602

286 Appendix

5. Thermistor Resistance / Temperature Characteristics

Indoor unit For air suction R1TFor liquid pipe R2TFor gas pipe R3T

Outdoor unit For outdoor air R1TFor coil R2TFor suction pipe R4TFor Receiver gas pipe R5T

(kΩ)T°C 0.0 0.5 T°C 0.0 0.5-20 197.81 192.08 30 16.10 15.76-19 186.53 181.16 31 15.43 15.10-18 175.97 170.94 32 14.79 14.48-17 166.07 161.36 33 14.18 13.88-16 156.80 152.38 34 13.59 13.31-15 148.10 143.96 35 13.04 12.77-14 139.94 136.05 36 12.51 12.25-13 132.28 128.63 37 12.01 11.76-12 125.09 121.66 38 11.52 11.29-11 118.34 115.12 39 11.06 10.84-10 111.99 108.96 40 10.63 10.41-9 106.03 103.18 41 10.21 10.00-8 100.41 97.73 42 9.81 9.61-7 95.14 92.61 43 9.42 9.24-6 90.17 87.79 44 9.06 8.88-5 85.49 83.25 45 8.71 8.54-4 81.08 78.97 46 8.37 8.21-3 76.93 74.94 47 8.05 7.90-2 73.01 71.14 48 7.75 7.60-1 69.32 67.56 49 7.46 7.310 65.84 64.17 50 7.18 7.041 62.54 60.96 51 6.91 6.782 59.43 57.94 52 6.65 6.533 56.49 55.08 53 6.41 6.534 53.71 52.38 54 6.65 6.535 51.09 49.83 55 6.41 6.536 48.61 47.42 56 6.18 6.067 46.26 45.14 57 5.95 5.848 44.05 42.98 58 5.74 5.439 41.95 40.94 59 5.14 5.05

10 39.96 39.01 60 4.96 4.8711 38.08 37.18 61 4.79 4.7012 36.30 35.45 62 4.62 4.5413 34.62 33.81 63 4.46 4.3814 33.02 32.25 64 4.30 4.2315 31.50 30.77 65 4.16 4.0816 30.06 29.37 66 4.01 3.9417 28.70 28.05 67 3.88 3.8118 27.41 26.78 68 3.75 3.6819 26.18 25.59 69 3.62 3.5620 25.01 24.45 70 3.50 3.4421 23.91 23.37 71 3.38 3.3222 22.85 22.35 72 3.27 3.2123 21.85 21.37 73 3.16 3.1124 20.90 20.45 74 3.06 3.0125 20.00 19.56 75 2.96 2.9126 19.14 18.73 76 2.86 2.8227 18.32 17.93 77 2.77 2.7228 17.54 17.17 78 2.68 2.6429 16.80 16.45 79 2.60 2.5530 16.10 15.76 80 2.51 2.47

SiEN30-602 Thermistor Resistance / Temperature Characteristics

Appendix 287

Outside Unit Thermistors for Discharge Pipe (R3T)

(kΩ)T°C 0.0 0.5 T°C 0.0 0.5 T°C 0.0 0.5

0 640.44 624.65 50 72.32 70.96 100 13.35 13.151 609.31 594.43 51 69.64 68.34 101 12.95 12.762 579.96 565.78 52 67.06 65.82 102 12.57 12.383 552.00 538.63 53 64.60 63.41 103 12.20 12.014 525.63 512.97 54 62.24 61.09 104 11.84 11.665 500.66 488.67 55 59.97 58.87 105 11.49 11.326 477.01 465.65 56 57.80 56.75 106 11.15 10.997 454.60 443.84 57 55.72 54.70 107 10.83 10.678 433.37 423.17 58 53.72 52.84 108 10.52 10.369 413.24 403.57 59 51.98 50.96 109 10.21 10.06

10 394.16 384.98 60 49.96 49.06 110 9.92 9.7811 376.05 367.35 61 48.19 47.33 111 9.64 9.5012 358.88 350.62 62 46.49 45.67 112 9.36 9.2313 342.58 334.74 63 44.86 44.07 113 9.10 8.9714 327.10 319.66 64 43.30 42.54 114 8.84 8.7115 312.41 305.33 65 41.79 41.06 115 8.59 8.4716 298.45 291.73 66 40.35 39.65 116 8.35 8.2317 285.18 278.80 67 38.96 38.29 117 8.12 8.0118 272.58 266.51 68 37.63 36.98 118 7.89 7.7819 260.60 254.72 69 36.34 35.72 119 7.68 7.5720 249.00 243.61 70 35.11 34.51 120 7.47 7.3621 238.36 233.14 71 33.92 33.35 121 7.26 7.1622 228.05 223.08 72 32.78 32.23 122 7.06 6.9723 218.24 213.51 73 31.69 31.15 123 6.87 6.7824 208.90 204.39 74 30.63 30.12 124 6.69 6.5925 200.00 195.71 75 29.61 29.12 125 6.51 6.4226 191.53 187.44 76 28.64 28.16 126 6.33 6.2527 183.46 179.57 77 27.69 27.24 127 6.16 6.0828 175.77 172.06 78 26.79 26.35 128 6.00 5.9229 168.44 164.90 79 25.91 25.49 129 5.84 5.7630 161.45 158.08 80 25.07 24.66 130 5.69 5.6131 154.79 151.57 81 24.26 23.87 131 5.54 5.4632 148.43 145.37 82 23.48 23.10 132 5.39 5.3233 142.37 139.44 83 22.73 22.36 133 5.25 5.1834 136.59 133.79 84 22.01 21.65 134 5.12 5.0535 131.06 128.39 85 21.31 20.97 135 4.98 4.9236 125.79 123.24 86 20.63 20.31 136 4.86 4.7937 120.76 118.32 87 19.98 19.67 137 4.73 4.6738 115.95 113.62 88 19.36 19.05 138 4.61 4.5539 111.35 109.13 89 18.75 18.46 139 4.49 4.4440 106.96 104.84 90 18.17 17.89 140 4.38 4.3241 102.76 100.73 91 17.61 17.34 141 4.27 4.2242 98.75 96.81 92 17.07 16.80 142 4.16 4.1143 94.92 93.06 93 16.54 16.29 143 4.06 4.0144 91.25 89.47 94 16.04 15.79 144 3.96 3.9145 87.74 86.04 95 15.55 15.31 145 3.86 3.8146 84.38 82.75 96 15.08 14.85 146 3.76 3.7247 81.16 79.61 97 14.62 14.40 147 3.67 3.6248 78.09 76.60 98 14.18 13.97 148 3.58 3.5449 75.14 73.71 99 13.76 13.55 149 3.49 3.4550 72.32 70.96 100 13.35 13.15 150 3.41 3.37

Pressure Sensor SiEN30-602

288 Appendix

6. Pressure Sensor

High Pressure (PH)

Low Pressure (PL)

PH = 1.38V-0.69PL = 0.57V-0.28PH : High pressure (MPa)VL : Low pressure (MPa)V : Voltage (V)

PH : Detected Pressure [High Side] MPaPL : Detected Pressure [Low Side] MPaVH : Output Voltage [High Side] VDC

VL : Output Voltage [Low Side] VDC

Output Voltage (VH, VL)

Detected Pressure

(V3053)

SiEN30-602 Method of Checking The Inverter�s Power Transistors and Diode Modules

Appendix 289

7. Method of Checking The Inverter�s Power Transistors and Diode Modules

[In case of YL (3ph, 380V, 60Hz) power supply]Please conduct followings before checking (1) Make the outside unit power off.(2) Disconnect the electric wiring connected to the power transistor and diode module.

Inverter PC board (A2P)

X11A

U

P1

Electronic circuit

Inverter P.C.Board

P2IGBT

X11A

U V W

L1

L2

L3

X10A

DM

N3

Fasten TabK2

K2

P3 V W

PC0409

Pin

P2

J1

P1

P3

N3

(V2895)

J2

J3

J1

J2

J3

Method of Checking The Inverter�s Power Transistors and Diode Modules SiEN30-602

290 Appendix

Power Transistor IGBT (On Inverter PC Board)

(Decision) If other than given above, the power unit is defective and must be replaced.

Note: Above figures are measured by analogue tester. Make sure to set �Tester Range� to �x 1k�.

Diode Module

(Decision)If other than given above, the diode module is defective and must be replaced.

Note: Above figures are measured by analogue tester. Make sure to set �Tester Range� to �x 1k�.

[In case of TL (3ph, 220V, 60Hz) power supply]Please conduct following before checking

(1) Make the outside unit power off.(2) Disconnect the electric wiring connected to the power transistor and diode module.

++

++

Resistance

P3 U 9±6Ω x 1k N3 U 17±12Ω x 1k

“ V 9±6Ω x 1k “ V 17±12Ω x 1k

“ W 9±6Ω x 1k “ W 17±12Ω x 1kU P3 17±12Ω x 1k U N3 9±6Ω x 1kV “ 17±12Ω x 1k V “ 9±6Ω x 1kW “ 17±12Ω x 1k W “ 9±6Ω x 1k

Tester Range Resistance Tester Range

(V2896)

++

++

ResistanceP1 J1 9±6Ω x 1k N3 J1 � x 1kP1 J3 9±6Ω x 1k “ J3 � x 1kP1 J2 9±6Ω x 1k “ J2 � x 1kJ1 P1 � x 1k L1 N3 9±6Ω x 1kJ3 P1 � x 1k L2 N3 9±6Ω x 1kJ2 P1 � x 1k L3 N3 9±6Ω x 1k

Tester Range Resistance Tester Range

(V2897)

SiEN30-602 Method of Checking The Inverter�s Power Transistors and Diode Modules

Appendix 291

[In case of TL (3ph, 220V, 60Hz) power supply]Please conduct followings before checking. (1) Make the outside unit power off.(2) Disconnect the electric wiring connected to the power transistor and diode module.

P3P3P3UVWN3N3N3UVW

UVWP3P3P3UVWN3N3N3

10~20(∗1)10~20(∗1)10~20(∗1)

100~300k→∞ (∗2)100~300k→∞ (∗2)100~300k→∞ (∗2)100~300k→∞ (∗2)100~300k→∞ (∗2)100~300k→∞ (∗2)

10~20(∗1)10~20(∗1)10~20(∗1)

×1K×1K×1K×1M×1M×1M×1M×1M×1M×1K×1K×1K

Tester electrode + Tester electrode – Tester rangeResistance ΩP1P1P1

HSRBHSSBHSTB

N3N3N3

HSRBHSSBHSTB

HSRBHSSBHSTB

P1P1P1

HSRBHSSBHSTB

N3N3N3

10~20(∗1)10~20(∗1)10~20(∗1)

∞ (∗2)∞ (∗2)∞ (∗2)∞ (∗2)∞ (∗2)∞ (∗2)

10~20(∗1)10~20(∗1)10~20(∗1)

×1K×1K×1K×1K×1K×1K×1K×1K×1K×1K×1K×1K

Tester electrode + Tester electrode – Tester rangeResistance Ω

WVU

L1

L2

L3

N3

P3IGBT

P2P1DM

HSRB

HSSB

HSTB

[Checking procedure]

�Power transistor[Judgment criteria]Values for each phase in ∗1 and ∗2 in the following table must be the same.

<The conditions that must be judged as the same value>1 The difference in resistance among each phase in ∗1 is 10Ω or less.2 The difference in resistance among each phase in ∗2 is 200Ω or less.

�Diode module[Judgment criteria]Values for each phase in ∗1 and ∗2 in the following table must be the same.

<The conditions that must be judged as the same value>1 The difference in resistance among each phase in ∗1 is 10Ω or less.2 All of the resistances of each phase in ∗2 is ∞Ω.

Printed Circuit Board Circuit Diagram

∗ When a digital tester is used, “∞” and “continuity” may be switched.

Method of Checking The Inverter�s Power Transistors and Diode Modules SiEN30-602

292 Appendix

SiEN30-602

Precautions for New Refrigerant (R-410A) 293

Part 9Precautions for NewRefrigerant (R-410A)

1. Precautions for New Refrigerant (R-410A) .........................................2941.1 Outline ..................................................................................................2941.2 Refrigerant Cylinders............................................................................2961.3 Service Tools........................................................................................297

Precautions for New Refrigerant (R-410A) SiEN30-602

294 Precautions for New Refrigerant (R-410A)

1. Precautions for New Refrigerant (R-410A)1.1 Outline1.1.1 About Refrigerant R-410A

! Characteristics of new refrigerant, R-410A1. Performance

Almost the same performance as R-22 and R-407C2. Pressure

Working pressure is approx. 1.4 times more than R-22 and R-407C.3. Refrigerant composition

Few problems in composition control, since it is a Quasi-azeotropic mixture refrigerant.

H1. Non-azeotropic mixture refrigerant: mixture of two or more refrigerants having different boiling points.

H2. Quasi-azeotropic mixture refrigerant: mixture of two or more refrigerants having similar boiling points.

H3. The design pressure is different at each product. Please refer to the installation manual for each product.

(Reference) 1 MPa 10.19716 kgf / cm2

HFC units (Units using new refrigerants) HCFC unitsRefrigerant name R-407C R-410A R-22

Composing substances

Non-azeotropic mixture of HFC32, HFC125 and HFC134a (*1)

Quasi-azeotropic mixture of HFC32 and JFC125 (*1)

Single-component refrigerant

Design pressure3.2 MPa (gauge pressure) = 32.6 kgf/cm2

4.0 MPa (gauge pressure) = 40.78 kgf/cm2

2.75MPa (gauge pressure) = 28.0 kgf/cm2

Refrigerant oil Synthetic oil (Ether) Mineral oil (Suniso)Ozone destruction

factor (ODP) 0 0 0.05

Combustibility None None NoneToxicity None None None

Pressure-Enthalpy curves of HFC-32/125 (50/50wt%)

SiEN30-602 Precautions for New Refrigerant (R-410A)


! Thermodynamic characteristic of R-410A

Temperature(°C)

Steam pressure (kPa)

Liquid Vapor

Density (kg/m3 )

Liquid Vapor

Specific heat at constant pressure (kJ/kgK)Liquid Vapor

Specific enthalpy (kJ/kg)

Liquid Vapor

Specific entropy(kJ/KgK)

Liquid Vapor



1.2 Refrigerant Cylinders! Cylinder specifications2 The cylinder is painted refrigerant color (pink).2 The cylinder valve is equipped with a siphon tube.

! Handling of cylinders(1) Laws and regulations

R-410A is liquefied gas, and the High-Pressure Gas Safety Law must be observed in handling them. Before using, refer to the High-Pressure Gas Safety Law.The Law stipulates standards and regulations that must be followed to prevent accidents with high-pressure gases. Be sure to follow the regulations.

(2) Handing of vesselsSince R-410A is high-pressure gas, it is contained in high-pressure vessels.Although those vessels are durable and strong, careless handling can cause damage that can lead to unexpected accidents. Do not drop vessels, let them fall, apply impact or roll them on the ground.

(3) StorageAlthough R-410A is not flammable, it must be stored in a well-ventilated, cool, and dark place in the same way as any other high-pressure gases.It should also be noted that high-pressure vessels are equipped with safety devices that releases gas when the ambient temperature reaches more than a certain level (fusible plug melts) and when the pressure exceeds a certain level (spring-type safety valve operates).

Refrigerant can be charged in liquid state with cylinder in upright position.

Caution: Do not lay cylinder on its side during charging, since it cause refrigerant in gas state to enter the system.

Sip

hon

tube

Cylinder



1.3 Service ToolsR-410A is used under higher working pressure, compared to previous refrigerants (R-22,R-407C). Furthermore, the refrigerating machine oil has been changed from Suniso oil to Ether oil, and if oil mixing is occurred, sludge results in the refrigerants and causes other problems. Therefore, gauge manifolds and charge hoses that are used with a previous refrigerant (R-22,R-407C) can not be used for products that use new refrigerants.Be sure to use dedicated tools and devices.

! Tool compatibility

As for the charge mouthpiece and packing, 1/2UNF20 is necessary for mouthpiece size of charge hose.

! Copper tube material and thickness

* O: Soft (Annealed)H: Hard (Drawn)

ToolCompatibility

Reasons for changeHFC HCFCR-410A R-407C R-22

Gauge manifoldCharge hose 5

2Do not use the same tools for R-22 and R-410A.

2Thread specification differs for R-410A and R-407C.

Charging cylinder 5 " 2Weighting instrument used for HFCs.Gas detector " 5 2The same tool can be used for HFCs.Vacuum pump(pump with reverse flow preventive function)

"2To use existing pump for HFCs,

vacuum pump adapter must be installed.

Weighting instrument "

Charge mouthpiece 5

2Seal material is different between R-22 and HFCs.

2Thread specification is different between R-410A and others.

Flaring tool (Clutch type) " 2For R-410A, flare gauge is necessary.Torque wrench " 2Torque-up for 1/2 and 5/8Pipe cutter "

Pipe expander "

Pipe bender "

Pipe assembling oil 5 2Due to refrigerating machine oil change. (No Suniso oil can be used.)

Refrigerant recovery device Check your recovery device.

Refrigerant piping See the chart below. 2Only φ19.1 is changed to 1/2H material while the previous material is "O".

Pipe size

φ6.4φ9.5

φ12.7φ15.9φ19.1φ22.2φ25.4φ28.6φ31.8φ38.1φ44.5

Ve-upR-407C

Material

OOOOO

1/2H1/2H1/2H1/2H1/2H1/2H

Ve-upIIR-410A

Material

OOOO

1/2H1/2H1/2H1/2H1/2H1/2H1/2H

Thickness t (mm)

0.80.80.81.01.01.01.01.01.21.41.6

Thickness t (mm)

0.80.80.81.01.01.01.01.01.11.41.6



1. Flaring tool

! Specifications2 Dimension A

! Differences2 Change of dimension A

Conventional flaring tools can be used when the work process is changed. (change of work process) Previously, a pipe extension margin of 0 to 0.5mm was provided for flaring. For R-410A air conditioners, perform pipe flaring with a pipe extension margin of 1.0 to 1.5mm.(For clutch type only) Conventional tool with pipe extension margin adjustment can be used.

Flare gauge

Nominal size

1/4

3/8

1/2

5/8

3/4

Tube O.D.

Do

6.35

9.52

12.70

15.88

19.05

Class-2 (R-410A)

9.1

13.2

16.6

19.7

24.0

Class-1 (Conventional)

9.0

13.0

16.2

19.4

23.3

+0-0.4

Unit:mm

A

Dimension A

For class-1: R-407CFor class-2: R-410A



2. Torque wrench

! Specifications2 Dimension B Unit:mm

No change in tightening torqueNo change in pipes of other sizes

! Differences2 Change of dimension B

Only 1/2", 5/8" are extended

3. Vacuum pump with check valve

! Specifications2 Discharge speed ) Maximum degree of vacuum

50 l/min (50Hz) Select a vacuum pump which is able to keep60 l/min (60Hz) the vacuum degree of the system in excess of

2 Suction port UNF7/16-20(1/4 Flare) �100.7 kPa (5 torr � 755 mmHg).UNF1/2-20(5/16 Flare) with adapter

! Differences2 Equipped with function to prevent reverse oil flow2 Previous vacuum pump can be used by installing adapter.

Nominal size Class-1 Class-2 Previous1/2 24 26 245/8 27 29 27

Dimension B

For class-1: R-407CFor class-2: R-410A

Vacuum pump adapterReverse flow preventive vacuum adapter



4. Leak tester

! Specifications2 Hydrogen detecting type, etc.2 Applicable refrigerants

R-410A, R-407C, R-404A, R-507A, R-134a, etc.

! Differences2 Previous testers detected chlorine. Since HFCs do not contain chlorine, new tester detects

hydrogen.

5. Refrigerant oil (Air compal)

! Specifications2 Contains synthetic oil, therefore it can be used for piping work of every refrigerant cycle.2 Offers high rust resistance and stability over long period of time.

! Differences2 Can be used for R-410A and R-22 units.

6. Gauge manifold for R-410A

! Specifications2 High pressure gauge

- 0.1 to 5.3 MPa (-76 cmHg to 53 kg/cm2)2 Low pressure gauge

- 0.1 to 3.8 MPa (-76 cmHg to 38 kg/cm2)2 1/4" → 5/16" (2min → 2.5min)2 No oil is used in pressure test of gauges.

→ For prevention of contamination



2 Temperature scale indicates the relationship between pressure and temperature in gas saturated state.

! Differences2 Change in pressure2 Change in service port diameter

7. Charge hose for R-410A

! Specifications2 Working pressure 5.08 MPa (51.8 kg/cm2)2 Rupture pressure 25.4 MPa (259 kg/cm2)2 Available with and without hand-operate valve that prevents refrigerant from outflow.

! Differences2 Pressure proof hose2 Change in service port diameter2 Use of nylon coated material for HFC resistance

8. Charging cylinder

! Specifications2 Use weigher for refrigerant charge listed below to charge directly from refrigerant cylinder.

! Differences2 The cylinder can not be used for mixed refrigerant since mixing ratio is changed during

charging.

When R-410A is charged in liquid state using charging cylinder, foaming phenomenon is generated inside charging cylinder.

(Hose with ball valve)

Can not be used

SiEN30-602

Drawings & Flow Charts 303

Drawings & Flow ChartsAAbnormal Discharge Pipe Temperature ...............185Actuation of High Pressure Switch .......................177Actuation of Low Pressure Sensor .......................179Address Duplication of Centralized

Controller ......................................................220Address Duplication, Improper Setting ........ 229, 236

BBRC4C type .........................................................104BRC7E type .........................................................104BSVQ36, 60M ........................................................44

CCentralized Control Group No. Setting .................111

BRC1A Type ..................................................111BRC7C Type .................................................112Group No. Setting Example ...........................112

Check Operation not executed ............................210Compressor Motor Lock .......................................181Contents of Control Modes ..................................113

DDisplay �Under Host Computer Integrate Control�

Blinks (Repeats Double Blink) ......................242Display �Under Host Computer Integrate Control�

Blinks (Repeats Single Blink) ........................239Drain Level above Limit .......................................170Drain Pump Control ...............................................87

When the Float Switch is Tripped and �AF� is Displayed on the Remote Control .......88

When the Float Switch is Tripped During Cooling OFF by Thermostat ............................87

When the Float Switch is Tripped During Heating Operation ............................................88

When the Float Switch is Tripped While the Cooling Thermostat is ON ..................87

EElectronic expansion Valve Control .......................93Error of External Protection Device ......................158

FFan Motor (M1F) Lock, Overload .........................162Field Setting from Outside Unit ............................115

Mode changing procedure .............................116Setting by dip switches ..................................115

Freeze Prevention ..................................................96Functional Parts Layout .........................................45

HHeater Control ........................................................94Hot Start Control (In Heating Operation Only) .......93

IImproper Combination of Optional Controllers for

Centralized Control .............................. 227, 234Inverter Compressor Abnormal ........................... 198Inverter Current Abnormal ................................... 199Inverter Over-Ripple Protection ........................... 203Inverter Start up Error ......................................... 200

LList of Swing Flap Operations ............................... 95Louver Control for Preventing Ceiling Dirt ............. 89Low Pressure Drop Due to Refrigerant Shortage or

Electronic Expansion Valve Failure ............. 205

MMalfunction of Capacity

Determination Device ................................... 171Malfunction of Discharge

Pipe Pressure Sensor .................................. 195Malfunction of Discharge

Pipe Thermistor (R3T) ................................. 190Malfunction of Drain Level

Control System (S1L) ................................... 160Malfunction of Heat Exchanger

Gas Pipe Thermistor (R4T) .......................... 191Malfunction of Inverter Radiating Fin

Temperature Rise (R1T) .............................. 197Malfunction of Inverter Radiating Fin

Temperature Sensor .................................... 204Malfunction of Liquid Pipe Thermistor (R6T) ....... 193Malfunction of Moving Part of

Electronic Expansion Valve (20E) ................ 168Malfunction of Moving Part of

Electronic Expansion Valve (Y1E, Y3E) ...... 183Malfunction of Sub Cooling Heat Exchanger

Outlet Thermistor (R5T) ............................... 194Malfunction of Suction

Pipe Pressure Sensor .................................. 196Malfunction of Swing Flap Motor (MA) ................ 166Malfunction of System, Refrigerant System

Address Undefined ...................................... 224Malfunction of Thermistor

(R1T) for Suction Air .................................... 174Malfunction of Thermistor

(R2T) for Heat Exchanger ............................ 172Malfunction of Thermistor

(R2T) for Suction Pipe ................................. 192Malfunction of Thermistor

(R3T) for Gas Pipes ..................................... 173Malfunction of Thermostat Sensor in Remote Control

175Malfunction of Transmission Between Centralized

Controller and Indoor Unit .................... 221, 230Malfunction of Transmission Between Indoor and

Outside Units in the Same System .............. 217

SiEN30-602

304 Drawings & Flow Charts

Malfunction of TransmissionBetween Indoor Units ....................................211

Malfunction of Transmission Between Inverter and Control PC Board ..........................................201

Malfunction of Transmission Between Master and Slave Remote Controls .................................216

Malfunction of Transmission BetweenOptional Controllers forCentralized Control .............................. 226, 233

Malfunction of Transmission BetweenOutside Units ................................................214

Malfunction of Transmission Between Remote Control and Indoor Unit .................................213

Malfunction of Water system ................................188Method of Checking The Inverter�s Power Transistors

and Diode Modules .......................................289

OOperation Lamp Blinks .........................................237Operation of the Remote Control�s Inspection / Test

Operation Button ...........................................150Outside Unit PC Board Layout .............................102Outside Unit Rotation .............................................86

PPC Board Defect ......................... 159, 176, 225, 232Piping Diagrams ...................................................254

BS Units .........................................................255Indoor Unit .....................................................256Outside Units .................................................254

Power Supply Insufficient orInstantaneous Failure ...................................208

Pressure Sensor ..................................................288Procedure for Mounting / Dismounting of

Switch Box ....................................................250Procedure for Dismounting ............................250Procedure for Mounting .................................250

RRefrigerant Overcharged .....................................186Refrigerant System not Set, Incompatible

Wiring/Piping .................................................223Remote Control Self-Diagnosis Function .............153Remote Control Service Mode .............................151Reverse Phase, Open Phase ..............................207RWEYQ10MYL, TL ................................................45

SSelf-diagnosis by Wired Remote Control .............146Self-diagnosis by Infrared Remote Control ..........147Setting of Demand Operation ..............................130

Image of operation in the case of A ...............132Image of operation in the case of A and B ....132Image of operation in the case of B ...............132

Setting of Refrigerant Additional Charging Operation ......................................................134Check Operation ............................................139In the Case of Multi-Outside-Unit System .....140

Simplified Remote Control ...................................105BRC2A51 .......................................................105BRC2C51 ......................................................105

TTest Operation ...................................................... 98Thermostat Control in Dry Operation .................... 92Thermostat Control While in Normal Operation .... 92Thermostat Sensor in Remote Control .................. 90

Cooling ............................................................ 90Heating ........................................................... 91

Troubleshooting (OP:Central Remote Control) ............................... 225Schedule Timer) ........................................... 230Unified ON/OFF Controller) .......................... 237

Troubleshooting by Remote Control ................... 145

WWired Remote Control ......................................... 103Infrared Remote Control - Indoor Unit ................. 104

BRC7C type .................................................. 104Wiring Diagrams .................................................. 258

BS Unit .......................................................... 264Indoor Unit .................................................... 265Outside Unit .................................................. 258Outside Unit Field Wiring .............................. 260

SiEN30-602

Index i

IndexAA0 .........................................................................158A1 .........................................................................159A3 .........................................................................160A6 .................................................................162, 163A7 .........................................................................166A9 .........................................................................168Abnormal Discharge Pipe Temperature ...............185Abnormal Indoor Fan Motor .................................163About Refrigerant R-410A ....................................294Actuation of High Pressure Switch .......................177Actuation of Low Pressure Sensor .......................179Address Duplication of Centralized

Controller ......................................................220Address Duplication, Improper Setting .........229, 236AF .........................................................................170AJ .........................................................................171Auto restart after power failure reset ....................108

BBSVQ36, 60M ........................................................44

CC4 .........................................................................172C5 .........................................................................173C9 .........................................................................174Centralized Control Group No. Setting .................111Check Operation ..................................................100Check Operation not executed .............................210CJ .........................................................................175Compressor Motor Lock .......................................181Contents of Control Modes ..................................113Cool / Heat Mode Switching

(In case of heat pump connection) ................125Cool / Heat Mode Switching (In case of heating

and simultaneous cooling / heating) operation connection .....................................................124

DDetailed Explanation of Setting Modes ................108Discharge Pipe Protection Control .........................77Display �Under Host Computer Integrate Control�

Blinks (Repeats Double Blink) ......................242Display �Under Host Computer Integrate Control�

Blinks (Repeats Single Blink) ........................239Drain Level above Limit ........................................170Drain Pump Control ................................................87

EE1 .........................................................................176E3 .........................................................................177E4 .........................................................................179E5 .........................................................................181E9 .........................................................................183Error of External Protection Device ......................158

FF3 ........................................................................ 185F6 ........................................................................ 186Fan Motor (M1F) Lock, Overload ........................ 162Field Setting ........................................................ 103Field Setting from Outside Unit ........................... 115

Setting by dip switches ................................. 115Setting by pushbutton switches .................... 116

Field Setting from Remote Control ...................... 103Filter Sign Setting ................................................ 108Freeze Prevention ................................................. 96Functional Parts Layout ........................................ 45

HHigh Pressure Protection Control .......................... 74HJ ........................................................................ 188

IImproper Combination of Optional Controllers for

Centralized Control .............................. 227, 234Inverter Compressor Abnormal ........................... 198Inverter Current Abnormal ................................... 199Inverter Over-Ripple Protection ........................... 203Inverter Protection Control .................................... 78Inverter Start up Error ......................................... 200

JJ3 ........................................................................ 190J4 ........................................................................ 191J5 ........................................................................ 192J7 ........................................................................ 193J9 ........................................................................ 194JA ........................................................................ 195JC ........................................................................ 196

LL4 ........................................................................ 197L5 ........................................................................ 198L8 ........................................................................ 199L9 ........................................................................ 200LC ........................................................................ 201List of Electrical and Functional Parts ................. 279

Indoor Unit .................................................... 280Outside Unit .................................................. 279

Louver Control for Preventing Ceiling Dirt ............. 89Low Pressure Drop Due to Refrigerant Shortage or

Electronic Expansion Valve Failure .............. 205Low Pressure Protection Control .......................... 75

MM1 ............................................................... 225, 232M8 ............................................................... 226, 233MA ............................................................... 227, 234Malfunction code indication by

outside unit PCB .......................................... 156

SiEN30-602

ii Index

Malfunction of CapacityDetermination Device ....................................171

Malfunction of DischargePipe Pressure Sensor ...................................195

Malfunction of Discharge PipeThermistor (R3T) ...........................................190

Malfunction of Drain LevelControl System (S1L) ....................................160

Malfunction of Heat Exchanger Gas PipeThermistor (R4T) ...........................................191

Malfunction of Inverter Radiating Fin Temperature Rise (R1T) .....................................................197

Malfunction of Inverter Radiating Fin Temperature Sensor ...........................................................204

Malfunction of Liquid Pipe Thermistor (R6T) ........193Malfunction of Moving Part of Electronic Expansion

Valve (20E) ...................................................168Malfunction of Moving Part of Electronic Expansion

Valve (Y1E, Y2E) ..........................................183Malfunction of Sub Cooling Heat Exchanger Outlet

Thermistor (R5T) ...........................................194Malfunction of Suction Pipe Pressure Sensor ......196Malfunction of Swing Flap Motor (MA) .................166Malfunction of System, Refrigerant System Address

Undefined ......................................................224Malfunction of Thermistor (R1T) for

Suction Air .....................................................174Malfunction of Thermistor (R2T) for

Heat Exchanger ............................................172Malfunction of Thermistor (R2T) for

Suction Pipe ..................................................192Malfunction of Thermistor (R3T) for

Gas Pipes .....................................................173Malfunction of Thermostat Sensor in Remote Control

175Malfunction of Transmission Between

Centralized Controller andIndoor Unit ............................................221, 230

Malfunction of Transmission Between Indoor and Outside Units in the Same System ...............217

Malfunction of Transmission BetweenIndoor Units ...................................................211

Malfunction of Transmission Between Inverter and Control PC Board ..........................................201

Malfunction of Transmission Between Master and Slave Remote Controls .................................216

Malfunction of Transmission Between Optional Controllers for Centralized Control ........226, 233

Malfunction of Transmission BetweenOutside Units ................................................214

Malfunction of Transmission Between Remote Control and Indoor Unit .................................213

Malfunction of Water system ................................188MC ................................................................229, 236Method of Checking The Inverter�s

Power Transistors and Diode Modules .........289

NNormal Control .......................................................69Normal Operation ...................................................60

OOperation Lamp Blinks ........................................ 237Operation Mode .................................................... 59Option List ........................................................... 285Outside Unit PC Board Layout ............................ 102

PP1 ........................................................................ 203P4 ........................................................................ 204PC Board Defect ......................... 159, 176, 225, 232Power Supply Insufficient or

Instantaneous Failure ................................... 208Precautions for New Refrigerant (R-410A) .......... 294Pressure Sensor ................................................. 288Protection Control ................................................. 74

RRefrigerant Circuit ................................................. 42

BSVQ36, 60M ................................................. 44RWEYQ10MYL, TL ......................................... 42

Refrigerant Cylinders .......................................... 296Refrigerant Flow for Each Operation Mode ........... 47

In Case of Heat Pump Connection ................. 47In Case of Heat Recovery Connection

(3 Outside units Connection.) ............ 53In Case of Heat Recovery Connection

(One Outside Unit Installation) ........... 49Refrigerant Overcharged ..................................... 186Refrigerant System not Set, Incompatible Wiring/

Piping ........................................................... 223Reverse Phase, Open Phase .............................. 207RWEYQ10MYL, TL ............................................... 45

SService Tools ...................................................... 297Setting Contents and Code No. .......................... 106Setting of Demand Operation .............................. 130Setting of Refrigerant Additional

Charging Operation ...................................... 134Special Operation .................................................. 80Specifications ........................................................ 16

BS Units .......................................................... 17Indoor Units .................................................... 18Outside Units .................................................. 16

Standby ................................................................. 65Startup Control ...................................................... 66Stop ....................................................................... 62

TTest Operation ...................................................... 98

Procedure and Outline .................................... 98Thermistor Resistance / Temperature

Characteristics ............................................. 286Thermostat Sensor in Remote Control .................. 90Troubleshooting (OP:

Central Remote Control) ............................... 225Schedule Timer) ........................................... 230Unified ON/OFF Controller) .......................... 237

UU0 ........................................................................ 205

SiEN30-602

Index iii

U1 .........................................................................207U2 .........................................................................208U3 .........................................................................210U4 .........................................................................211U5 .........................................................................213U7 .........................................................................214U8 .........................................................................216U9 .........................................................................217UA ........................................................................219UC ........................................................................220UE ................................................................221, 230UF ........................................................................223UH ........................................................................224

SiEN30-602

iv Index

ÉSiEN30-602GËÍ

ISO14001 assures an effective environmentalmanagement system in order to help protect human healthand the environment from the potential impact of ouractivities, products and services and to assist inmaintaining and improving the quality of the environment.

Daikin Europe N.V. is approved by LRQA for its QualityManagement System in accordance with the ISO9001standard. ISO9001 pertains to quality assurance regardingdesign, development, manufacturing as well as to servicesrelated to the product.

Daikin units comply with the European regulations thatguarantee the safety of the product.

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The present publication is drawn up by way of information only and does notconstitute an offer binding upon Daikin Europe N.V.. Daikin Europe N.V. hascompiled the content of this publication to the best of its knowledge. Noexpress or implied warranty is given for the completeness, accuracy,reliability or fitness for particular purpose of its content and the products andservices presented therein. Specifications are subject to change withoutprior notice. Daikin Europe N.V. explicitly rejects any liability for any direct orindirect damage, in the broadest sense, arising from or related to the useand/or interpretation of this publication. All content is copyrighted by DaikinEurope N.V..

Daikin�s unique position as a manufacturer of airconditioning equipment, compressors andrefrigerants has led to its close involvement inenvironmental issues. For several years Daikin hashad the intension to become a leader in the provisionof products that have limited impact on theenvironment. This challenge demands the eco designand development of a wide range of products and anenergy management system, resulting in energyconservation and a reduction of waste.

VRV products are not within the scope of the Euroventcertification programme.

Naamloze VennootschapZandvoordestraat 300B-8400 Oostende - Belgiumwww.daikin.euBTW: BE 0412 120 336RPR Oostende

1.4 operation of the remote control™s inspection / test ..._[angol]_szervíz... · malfunction...

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