multi v air conditioner svc manual(exploded view)… · 2020. 7. 8. · 50 430 galvanized steel...

Multi V Air ConditionerSVC MANUAL(Exploded View)MODEL :

CAUTIONBefore Servicing the unit, read the safety precautions in General SVC manual.Only for authorized service personnel.

CONFIDENTIAL

Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means), publication, modification, copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual. The material covered by this prohibition includes, without limitation, any text, graphics or logos in this Service Manual.

Copyright © 2018 LG Electronics Inc. All rights reserved. Only training and service purposes.

ARNU073M2A4ARNU093M2A4ARNU123M2A4ARNU153M2A4ARNU183M2A4ARNU243M2A4ARNU283M2A4ARNU363M2A4ARNU423M2A4

ARNU283M3A4ARNU363M3A4ARNU423M3A4ARNU483M3A4ARNU543M3A4

- 2 - Copyright © 2018 LG Electronics Inc. All rights reserved. Only training and service purposes.

1. SpecificationType Ceiling Concealed Duct -Middle Static

Model Unit ARNU073M2A4 ARNU093M2A4 ARNU123M2A4

Cooling Capacity kW

kcal/h Btu/h

Heating Capacity kW

kcal/h Btu/h

Power InputNominal WRated W

Casing Dimensions(WxHxD)

Body mm inch

Coil Rows x Columns x FPI Face Area m2 (ft2)

Fan

Type Motor Output x Number W Running Current A

Air Flow Rate(H / M / L)(High Mode-Factory Set)External static pressure

CMM CFM

mmAq(Pa)

Air Flow Rate(H / M / L)(Standard mode)External static Pressure

CMM CFM

mmAq(Pa)Drive Motor type

Temperature Control

Sound Absorbing Thermal Insulation Material Air Filter Safety Device

Pipe Connections Liquid Side mm(inch) Gas Side mm(inch) Drain Pipe(Internal Dia.) mm(inch)

Net Weight Body kg(lbs) Sound Pressure Levels (H / M / L) dB(A)Sound Power Levels (H / M / L) dB(A)Power Supply Ø, V, Hz Refrigerant Control Transmission Cable (AWG# -C)

2.21 9007 500

2.52 2008 500

32430

Galvanized Steel Plate1 250 × 270 × 700

49-7/32 x 10-5/8 x 27-9/162 x 13 x 180.27(2.91)

Sirocco Fan350 x 1

2.313.3 / 9.4 / 6.8470 / 332 / 240

6(59)13.3 / 9.4 / 6.8470 / 332 / 240

5(49)DirectBLDC

Microprocessor, Thermostatfor cooling and heating

Foamed polystrene -

FuseØ6.35(1/4)Ø12.7(1/2)

25(1)37.6(83)

38 / 37 / 3653 / 52 / 52

1, 208-230, 60EEV

AWG 18 x 2C

2.82 4009 600

3.22 80010 900

32430


49-7/32 x 10-5/8 x 27-9/162 x 13 x 180.27(2.91)

Sirocco Fan350 x 1

2.313.3 / 9.4 / 6.8470 / 332 / 240

6(59)13.3 / 9.4 / 6.8470 / 332 / 240

5(49)DirectBLDC


Foamed polystrene-

FuseØ6.35(1/4)Ø12.7(1/2)

25(1)37.6(83)

38 / 37 / 3653 / 52 / 52

1, 208-230, 60EEV

AWG 18 x 2C

3.63 10012 300

43 40013 600

33430


49-7/32 x 10-5/8 x 27-9/162 x 13 x 180.27(2.91)

Sirocco Fan350 x 1

2.314.8 / 10.2 / 7.4523 / 360 / 261

6(59)14.8 / 10.2 / 7.4523 / 360 / 261

5(49)DirectBLDC


Foamed polystrene-

FuseØ6.35(1/4)Ø12.7(1/2)

25(1)37.6(83)

38 / 37 / 3654 / 53 / 53

1, 208-230, 60EEV

AWG 18 x 2C

Notes:-1. Capacities are based on the following conditions: Cooling • Indoor temp. 27°C[80.6°F]DB/ 19°C[66.2°F]WB • Outdoor temp. 35°C[95°F]DB/ 24°C[75.2°F]WB • Interconnecting Piping Length 7.5m(24.6ft) • Level Difference of Zero Heating • Indoor temp. 20°C[68°F]DB/ 15°C[59°F]WB • Outdoor temp. 7°C[44.6°F]DB/ 6°C[42.8°F]WB • Interconnecting Piping Length 7.5m(24.6ft) • Level Difference of Zero2. Capacities are net capacities3. Due to our policy of innovation some specifications may be changed without prior notification4. To be added for more available Models5. EEV : Electronic Expansion Valve6. Noise Level is Standard Mode

(for actual High Mode(factory set) condition, Noise Level may exceed the standard level by 1.5dBA)

Conversion Formula

kcal/h= kW x 860Btu/h = kW x 3 412CFM = m3/min x 35.3l/s = CMM x 1 000/60




Conversion Formula

kcal/h= kW x 860Btu/h = kW x 3 412CFM = m3/min x 35.3l/s = CMM x 1 000/60

Type Ceiling Concealed Duct -Middle Static Model Unit ARNU153M2A4 ARNU183M2A4 ARNU243M2A4

Cooling Capacity kW

kcal/h Btu/h

Heating Capacity kW

kcal/h Btu/h



Body mm inch


Fan



CMM CFM

mmAq(Pa)


CMM CFM


Temperature Control




4.53 90015 400

54 30017 100

33430


49-7/32 x 10-5/8 x 27-9/162 x 13 x 180.27(2.91)

Sirocco Fan350 x 1

2.314.8 / 10.2 / 7.4523 / 360 / 261

6(59)14.8 / 10.2 / 7.4523 / 360 / 261

5(49)DirectBLDC


Foamed polystrene -

FuseØ6.35(1/4)Ø12.7(1/2)

25(1)37.6(83)

38 / 37 / 3653 / 53 / 52

1, 208-230, 60EEV

AWG 18 x 2C

5.64 80019 100

6.35 40021 500

50430


49-7/32 x 10-5/8 x 27-9/162 x 13 x 180.27(2.91)

Sirocco Fan350 x 1

2.318.5 / 14.8 / 10.2653 / 523 / 360

6(59)18.5 / 14.8 / 10.2653 / 523 / 360

5(49)DirectBLDC


Foamed polystrene -

FuseØ6.35(1/4)Ø12.7(1/2)

25(1)37.6(83)

39 / 38 / 3754 / 53 / 53

1, 208-230, 60EEV

AWG 18 x 2C

7.16 10024 200

86 90027 300

50430


49-7/32 x 10-5/8 x 27-9/162 x 13 x 180.27(2.91)

Sirocco Fan350 x 1

2.318.5 / 14.8 / 10.2653 / 523 / 360

6(59)18.5 / 14.8 / 10.2653 / 523 / 360

5(49)DirectBLDC


Foamed polystrene -

FuseØ9.52(3/8)Ø15.88(5/8)

25(1)37.6(83)

39 / 38 / 3754 / 53 / 53

1, 208-230, 60EEV

AWG 18 x 2C


Cooling Capacity kW

kcal/h Btu/h

Heating Capacity kW

kcal/h Btu/h



Body mm inch


Fan



CMM CFM

mmAq(Pa)


CMM CFM


Temperature Control





8.27 10028 000

9.28 00031 500

123430


49-7/32 x 10-5/8 x 27-9/163 x 13 x 180.27(2.91)

Sirocco Fan350 x 1

2.328.0 / 24.0 / 21.0

989 /848 / 7426(59)

28.0 / 24.0 / 21.0989 /848 / 742

5(49)DirectBLDC


Foamed polystrene -

FuseØ9.52(3/8)Ø15.88(5/8)

25(1)39.1(86)

40 / 39 / 3764 / 61 / 57

1, 208-230, 60EEV

AWG 18 x 2C

10.69 10036 200

11.910 20040 600

184430


49-7/32 x 10-5/8 x 27-9/163 x 13 x 180.27(2.91)

Sirocco Fan350 x 1

2.328.0 / 24.0 / 21.0989 / 848 / 742

6(59)28.0 / 24.0 / 21.0989 / 848 / 742

5(49)DirectBLDC


Foamed polystrene -

FuseØ9.52(3/8)Ø15.88(5/8)

25(1)39.1(86)

42 / 40 / 3865 / 62 / 60

1, 208-230, 60EEV

AWG 18 x 2C

12.310 60042 000

13.811 80047 000

231430


49-7/32 x 10-5/8 x 27-9/163 x 13 x 180.27(2.91)

Sirocco Fan350 x 1

2.338.0 / 33.0 / 28.0

1 342 / 1 165 / 9896(59)

38.0 / 33.0 / 28.01 342 / 1 165 / 989

5(49)DirectBLDC


Foamed polystrene -

FuseØ9.52(3/8)Ø15.88(5/8)

25(1)39.1(86)

44 / 43 / 4066 / 65 / 63

1, 208-230, 60EEV

AWG 18 x 2C



Conversion Formula

kcal/h= kW x 860Btu/h = kW x 3412CFM = m3/min x 35.3l/s = CMM x 1 000/60


Cooling Capacity kW

kcal/h Btu/h

Heating Capacity kW

kcal/h Btu/h



Body mm inch


Fan



CMM CFM

mmAq(Pa)


CMM CFM


Temperature Control





8.27 10028 000

9.28 00031 500

97650


49-7/32 x 14-3/16 x 27-9/163 x 16 x 180.32(3.44)

Sirocco Fan500 x 1

2.535.5 / 30.6 / 26.2

1 254 / 1 081 / 9256(59)

35.5 / 30.6 / 26.21 254 / 1 081 / 925

5(49)DirectBLDC

Microprocessor, Thermostatfor cooling and heating Foamed polystyrene

-Fuse

Ø9.52(3/8)Ø15.88(5/8)

25(1)43.6(96)

40 / 39 / 3764 / 62 / 61

1, 208-230, 60EEV

AWG 18 x 2C

10.69 10036 200

11.910 20040 600

109650


49-7/32 x 14-3/16 x 27-9/163 x 16 x 180.32(3.44)

Sirocco Fan500 x 1

2.538.4 / 33.1 / 26.7

1 357 / 1 170 / 9436(59)

38.4 / 33.1 / 26.71 357 / 1 170 / 943

5(49)DirectBLDC


-Fuse

Ø9.52(3/8)Ø15.88(5/8)

25(1)43.6(96)

41 / 39 / 3765 / 63 / 61

1, 208-230, 60EEV

AWG 18 x 2C

12.310 60042 000

13.811 80047 000

109650


49-7/32 x 14-3/16 x 27-9/163 x 16 x 180.32(3.44)

Sirocco Fan500 x 1

2.538.4 / 33.1 / 26.7

1 357 / 1 170 / 9436(59)

38.4 / 33.1 / 26.71 357 / 1 170 / 943

5(49)DirectBLDC


-Fuse

Ø9.52(3/8)Ø15.88(5/8)

25(1)43.6(96)

41 / 39 / 3765 / 63 / 61

1, 208-230, 60EEV

AWG 18 x 2C



Conversion Formula



Type Ceiling Concealed Duct -Middle Static Model Unit ARNU483M3A4 ARNU543M3A4

Cooling Capacity kW

kcal/h Btu/h

Heating Capacity kW

kcal/h Btu/h


Casing

Dimensions (WxHxD) Body mm inch


Fan



CMM CFM

mmAq(Pa)


CMM CFM


Temperature Control




14.112 10048 100

15.913 60054 200

172650


49-7/32 x 14-3/16 x 27-9/163 x 16 x 180.32(3.44)

Sirocco Fan500 x 1

2.540.0 / 34.0 / 28.0

1 413 / 1 201 / 9896(59)

40.0 / 34.0 / 28.01 413 / 1 201 / 989

5(49)DirectBLDC

Microprocessor, Thermostat for cooling and heating Foamed polystyrene

-Fuse

Ø9.52(3/8)Ø15.88(5/8)

25(1)43.6(96)

42 / 39 / 3767 / 64 / 62

1, 208-230, 60EEV

AWG 18 x 2C

15.813 60054 000

1815 50061 400

260650


49-7/32 x 14-3/16 x 27-9/163 x 16 x 180.32(3.44)

Sirocco Fan500 x 1

2.550.0 / 45.0 / 40.0

1 766 / 1 589 / 1 4136(59)

50.0 / 45.0 / 40.01 766 / 1 589 / 1 413

5(49)DirectBLDC

Microprocessor, Thermostat for cooling and heating Foamed polystyrene

-Fuse

Ø9.52(3/8)Ø15.88(5/8)

25(1)43.6(96)

44 / 43 / 4269 / 68 / 67

1, 208-230, 60EEV

AWG 18 x 2C



Conversion Formula



2. List of Functions

Air supply outlet Airflow direction control(left & right) Airflow direction control(up & down) Auto swing(left & right) Air flow

Auto swing(up & down) Airflow steps(fan/cool/heat) Chaos swing Chaos wind(auto wind) Jet cool(Power wind) Swirl wind Deodorizing filter Air purifying Plasma air purifier Prefilter(washable / anti-fungus) Drain pump Installation

E.S.P. control Electric heater(operation) High ceiling operation Hot start Reliability Self diagnosis Soft dry operation Auto changeover Auto cleaning Auto operation(artificial intelligence) Auto restart operation Child lock Convenience Forced operation Group control Sleep mode Timer(on/off) Timer(weekly) Two thermistor control Standard wired remote controller Wide Character wired remote controller

Picto wired remote controller Individual Deluxe wired remote controller control Simple wired remote controller Wired remote controller(for hotel use) Wireless remote controller(simple) Wireless LCD remote control

Special Zone control

function kit

CTIE Electro thermostat

1----

3/3/3----XXOOOX-OOO

O (Heat recovery only)O

O (Heat pump or cooling only)OO-OOOOO

Accessory

Accessory

AccessoryAccessoryAccessory

XAccessoryAccessory

--

FunctionCategoryARNU073M2A4, ARNU093M2A4, ARNU123M2A4, ARNU153M2A4ARNU183M2A4, ARNU243M2A4, ARNU283M2A4, ARNU363M2A4ARNU423M2A4, ARNU283M3A4, ARNU363M3A4, ARNU423M3A4ARNU483M3A4, ARNU543M3A4

O : Applied X : Not applied – : No relationOption : Model name & price are different according to options, and assembled in factory with main unit.Accessory : Installed at field, ordered and purchased separately by the corresponding model name, supplied with separate

package.

3. Piping Diagrams

[Unit : mm(inch)]Refrigerant pipe connection port diameter

M2/M3 Chassis

Heat Exchanger

Sirocco Fan

Th3

Th1

Th2

lndoor unit

EEV :Heating:Cooling

Filter

Filter

LOC. Description PCB Connector (Color)

Th1 Thermistor for room air temperature CN-ROOM (Yellow)

Th2 Thermistor for pipe in temperature CN-PIPE_IN (White)

Th3 Thermistor for pipe out temperature CN-PIPE_OUT (Red)


CHASSIS MODEL GAS LIQUID

M2

ARNU073M2A4 Ø12.7(1/2) Ø6.35(1/4)

ARNU093M2A4 Ø12.7(1/2) Ø6.35(1/4)

ARNU123M2A4 Ø12.7(1/2) Ø6.35(1/4)

ARNU153M2A4 Ø12.7(1/2) Ø6.35(1/4)

ARNU183M2A4 Ø12.7(1/2) Ø6.35(1/4)

ARNU243M2A4 Ø15.88(5/8) Ø9.52(3/8)

ARNU283M2A4 Ø15.88(5/8) Ø9.52(3/8)

ARNU363M2A4 Ø15.88(5/8) Ø9.52(3/8)

ARNU423M2A4 Ø15.88(5/8) Ø9.52(3/8)

M3

ARNU283M3A4 Ø15.88(5/8) Ø9.52(3/8)

ARNU363M3A4 Ø15.88(5/8) Ø9.52(3/8)

ARNU423M3A4 Ø15.88(5/8) Ø9.52(3/8)

ARNU483M3A4 Ø15.88(5/8) Ø9.52(3/8)

ARNU543M3A4 Ø15.88(5/8) Ø9.52(3/8)


M2 Chassis M3 Chassis

4. Wiring Diagrams

CN_ROOM(YL)

CN_WF(BL)

CN_PIPE_IN(WH)

CN_PIPE_OUT(RD)

CN_HUMID(OR)

CN_AIRC(BL) CN_REMO(GN)

CN_PTC(BL)

CN_MOTOR1(WH)

CN_ZONE(WH)

CN_DAMPER(GN)

CN_LEAK(VI)

CN_FLOAT(BL)

CN_EXT(BL)

CN_D_PUMP(WH)

CN_POWER(WH)

CN_CC(WH)

CN_485(WH)

CN_OPTION

CN_DISPLAY(RD)

CN_EEV(WH)

CN_ROOM(YL)

CN_WF(BL)

CN_PIPE_IN(WH)

CN_PIPE_OUT(RD)

CN_HUMID(OR)

CN_AIRC(BL) CN_REMO(GN)

CN_PTC(BL)

CN_MOTOR1(WH)

CN_ZONE(WH)

CN_DAMPER(GN)

CN_LEAK(VI)

CN_FLOAT(BL)

CN_EXT(BL)

CN_D_PUMP(WH)

CN_POWER(WH)

CN_CC(WH)

CN_485(WH)

CN_OPTION

CN_DISPLAY(RD)

CN_EEV(WH)

CN_1(BL)CN_1(BL)

5. DIP Switch Setting

For Multi V Models, DIP switch 1, 2, 6, 8 must be set OFF.

Function Description Setting Off Setting On DefaultSW1

SW2

SW3

SW4

SW5

SW6

SW7

SW8

Communication

Cycle

Group Control

Dry Contact Mode

Installation

Heater linkage

Ventilator linkage

Vane selection(Console)

Region selection

Etc.

N/A (Default)

N/A (Default)

Selection of Master or Slave

Selection of Dry ContactMode

Fan continuous operation

N/A

Selection of Ventilator linkage

Selection of up/down sideVane

Selection tropical region

Spare

-

-

Master

Wired/Wireless remote controller

Selection of Manual or Autooperation Mode

Continuous operation Removall

-

Linkage Removal

Up side + Down side Vane

General model

-

-

-

Slave

Auto

-

-

Working

Up side VaneOnly

Tropical model

-

Off

Off

Off

Off

Off

Off

Off

Off

1. Indoor Unit

2. Outdoor Unit

In case that the products meet specific conditions, “Auto addressing” function can start automatically with the im-proved speed by turning the DIP switch #3 of the outdoor unit and resetting the power.

* Specific conditions:- All names of the indoor units are ARNU****4.- The serial number of Multi V super IV (outdoor units) is after October 2013.

DIP switch 7 segment

Outdoor Unit PCB Outdoor Unit DIP Switch


237204B

237204A

147901

137213B

137213A

237200

359012A

135501

159830739209

73920A

352150B

W50010

W4030B237205

237202

W4030A

137214

55211G

352118

W4810B

249951

349600A349610B

359012B

346810

336600A

354210

268711D261704

W6640A

268711A

268711C

263230B

263230C

137211

437213

263230A

739207

237203

349600B

349610A

336600B W1JK

330871

W6640C

W4810D

354212

158591

158580

266010

237204A

137213A

147901 349610B

359012A

135501

349600B

159830

336600B

346810

336600A349600AW4810A

W4030B

359012B

237205

W4030A 237202

237203

739207

137214354210

55211G

352118

249951

263230B

263230A

263230C

437213

137211

349610A

268711A

261704W6640A

W6640C

268711D

W6640A

268711C

W50010

352150B

237200

W6640C

W1JK

237204B

137213BW4810B

354212

739209

158591

158580

266010

73920A

330871

W4810D

- 13 -

Error Indicator• This function indicates types of failure in self-diagnosis and occurrence of failure for air condition.• Error mark is displayed on display window of indoor units and wired remote controller, and 7-segment LED of

outdoor unit control board as shown in the table.• If more than two troubles occur simultaneously, lower number of error code is first displayed.• After error occurrence, if error is released, error LED is also released simultaneously.

Error Display- 1st,2nd,3rd LED of 7-segment indicates error number, 4th LED indicates unit number. Indicates unit number.

(* = 1:Master, 2 : Slave 1, 3 : Slave 2)

Ex) 211 : No.21 error of master unit213 : No.21 error of slave21051 : No.105 error of master unit

h Refer to the DX-Venitilation manual for DX-Venitilation error code

(repetition)

Error Compressor

Error number Unit(1:Master, 2:Slave 1, 3:Slave 2)

7. Self-diagnosis function

Display Title Cause of Error

Ind

oo

r u

nit

rel

ated

err

or

0 1 - Air temperature sensor of indoor unit Air temperature sensor of indoor unit is open or short

0 2 - Inlet pipe temperature sensor of indoor unit Inlet pipe temperature sensor of indoor unit is open or short

0 3 - Communication error : wired remote controller ↔indoor unit Failing to receive wired remote controller signal in indoor unit PCB

0 4 - Drain pump Malfunction of drain pump

0 5 -Communication error : Indoor communicationPCB ↔ indoor unit

Indoor Unit PCB did not receive signal from Indoor communication PCB for over 3 minutes continuously

0 6 - Outlet pipe temperature sensor of indoor unit Outlet pipe temperature sensor of indoor unit is open or short

0 9 - Indoor EEPROM Error In case when the serial number marked on EEPROM of Indoor unit is 0 or FFFFFF

1 0 - Poor fan motor operation Disconnecting the fan motor connector / Failure of indoor fan motor lock

2 3 0 Refrigerant leakage sensing error Refrigerant leakage sensing error and sensor defect error

2 3 7Communication defect in indoor communicationPCB ↔ outdoor communication PCB

Indoor communication PCB did not receive signal from outdoorcommunication PCB for over 3 minutes continuously

2 3 8Communication error in outdoor communicationPCB ↔ outdoor unit

Outdoor communication PCB did not receive communication sig-nal from outdoor unit for over 3 minutes continuously


P/NO : MFL69041302


multi v air conditioner svc manual(exploded view)… · 2020. 7. 8. · 50 430 galvanized steel...

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