Internal Use nly http://biz.lgservice.com Multi V Air Conditioner SVC MANUAL(Exploded View) MDEL : ARNU07GTU*4 ARNU09GTU*4 ARNU12GTU*4 ARNU18GTT*4 ARNU24GTT*4 CAUTIN Before Servicing the unit, read the safety precautions in General SVC manual. nly for authorized service personnel.
1. Specification Cooling capacity Heating capacity Casing Model Unit Body Dimensions(WxDxH) Front panel Coil Rows x Columns x FPI Face area m 2 (ft 2 ) Motor output x number W Running current A Fan Air flow rate(h/m/l) CMM cfm Drive Motor type Temperature control Sound absorbingthermal insulation material Safety device Liquid side Pipe connections Gas side Drain pipe(internal dia.) Net weight Body kg(lbs) Noise level(sound press, 1.5m, H/M/L) db(a)+1 Power supply Refrigerant control Power cable Transmission cable Panel color Panel name(acc'y) Panel type Grille type Ø, V, Hz 1Way ceiling cassette (art type) ARNU07GTUC4 ARNU07GTUA4 2.2 2.2 1,900 1,900 7,500 7,500 2.5 2.5 2,200 2,200 8,500 8,500 860x450x132 860x450x132 3327/32 x 1723/32 x 53/16 3327/32 x 1723/32 x 53/16 1,100x500x34 1,100x500x34 435/16 x 1911/16 x 111/32 435/16 x 1911/16 x 111/32 0.16 (1.72) 0.16 (1.72) 30 30 0.18 0.18 8.2/7.3/6.4 8.2/7.3/6.4 290 / 258 / 226 290 / 258 / 226 Thermostat for cooling and heating Thermostat for cooling and heating 25(1) 25(1) 14.7(32.4) 14.7(32.4) 32 / 29 / 26 32 / 29 / 26 1, 220 ~ 240, 50 1, 220 ~ 240, 50 1, 220, 60 1, 220, 60 CVVSB 1.0 ~ 1.5 2C CVVSB 1.0 ~ 1.5 2C PTUUD PTUUC PTUUC Notes: 1. Capacities are based on the following conditions: Cooling Indoor temp. 27 C[80.6 F]DB/ 19 C[66.2 F]WB utdoor temp. 35 C[95 F]DB/ 24 C[75.2 F]WB Heating Indoor temp. 20 C[68 F]DB/ 15 C[59 F]WB utdoor temp. 7 C[44.6 F]DB/ 6 C[42.8 F]WB 2. Capacities are net capacities 3. Due to our policy of innovation some specifications may be changed without prior notification 4. To be added for more available models 5. : Electronic expansion valve Conversion formula = x 860 = x 3412 cfm = m 3 /min x 35.3 l/s = CMM x 1000/60 nly for training and service purposes 2 LGE Internal Use nly
Cooling capacity Heating capacity Casing Model Unit Body Dimensions(WxDxH) Front panel Coil Rows x Columns x FPI Face area m 2 (ft 2 ) Motor output x number W Running current A Fan Air flow rate(h/m/l) CMM cfm Drive Motor type Temperature control Sound absorbingthermal insulation material Safety device Liquid side Pipe connections Gas side Drain pipe(internal dia.) Net weight Body kg(lbs) Noise level(sound press, 1.5m, H/M/L) db(a)+1 Power supply Refrigerant control Power cable Transmission cable Panel color Panel name(acc'y) Panel type Grille type Ø, V, Hz 1Way ceiling cassette (art type) ARNU09GTUC4 ARNU09GTUA4 2.8 2.8 2,400 2,400 9,600 9,600 3.2 3.2 2,800 2,800 10,900 10,900 860x450x132 860x450x132 3327/32 x 1723/32 x 53/16 3327/32 x 1723/32 x 53/16 1,100x500x34 1,100x500x34 435/16 x 1911/16 x 111/32 435/16 x 1911/16 x 111/32 0.16 (1.72) 0.16 (1.72) 30 30 0.18 0.18 9.2/8.6/8.2 9.2/8.6/8.2 325 / 304 / 290 325 / 304 / 290 Thermostat for cooling and heating Thermostat for cooling and heating 25(1) 25(1) 14.7(32.4) 14.7(32.4) 35/34/32 35/34/32 1, 220 ~ 240, 50 1, 220 ~ 240, 50 1, 220, 60 1, 220, 60 CVVSB 1.0 ~ 1.5 2C CVVSB 1.0 ~ 1.5 2C PTUUD PTUUC PTUUC Notes: 1. Capacities are based on the following conditions: Cooling Indoor temp. 27 C[80.6 F]DB/ 19 C[66.2 F]WB utdoor temp. 35 C[95 F]DB/ 24 C[75.2 F]WB Heating Indoor temp. 20 C[68 F]DB/ 15 C[59 F]WB utdoor temp. 7 C[44.6 F]DB/ 6 C[42.8 F]WB 2. Capacities are net capacities 3. Due to our policy of innovation some specifications may be changed without prior notification 4. To be added for more available models 5. : Electronic expansion valve Conversion formula = x 860 = x 3412 cfm = m 3 /min x 35.3 l/s = CMM x 1000/60 nly for training and service purposes 3 LGE Internal Use nly
Cooling capacity Heating capacity Casing Model Unit Body Dimensions(WxDxH) Front panel Coil Rows x Columns x FPI Face area m 2 (ft 2 ) Motor output x number W Running current A Fan Air flow rate(h/m/l) CMM cfm Drive Motor type Temperature control Sound absorbingthermal insulation material Safety device Liquid side Pipe connections Gas side Drain pipe(internal dia.) Net weight Body kg(lbs) Noise level(sound press, 1.5m, H/M/L) db(a)+1 Power supply Refrigerant control Power cable Transmission cable Panel color Panel name(acc'y) Panel type Grille type Ø, V, Hz 1Way ceiling cassette (art type) ARNU12GTUC4 ARNU12GTUA4 3.6 3.6 3,100 3,100 12,300 12,300 4 4 3,400 3,400 13,600 13,600 860x450x132 860x450x132 3327/32 x 1723/32 x 53/16 3327/32 x 1723/32 x 53/16 1,100x500x34 1,100x500x34 435/16 x 1911/16 x 111/32 435/16 x 1911/16 x 111/32 0.16 (1.72) 0.16 (1.72) 30 30 0.18 0.18 10/9.2/8.2 10/9.2/8.2 353 / 325 / 290 353 / 325 / 290 Thermostat for cooling and heating Thermostat for cooling and heating 25(1) 25(1) 14.7(32.4) 14.7(32.4) 38/35/32 38/35/32 1, 220 ~ 240, 50 1, 220 ~ 240, 50 1, 220, 60 1, 220, 60 CVVSB 1.0 ~ 1.5 2C CVVSB 1.0 ~ 1.5 2C PTUUD PTUUC PTUUC Notes: 1. Capacities are based on the following conditions: Cooling Indoor temp. 27 C[80.6 F]DB/ 19 C[66.2 F]WB utdoor temp. 35 C[95 F]DB/ 24 C[75.2 F]WB Heating Indoor temp. 20 C[68 F]DB/ 15 C[59 F]WB utdoor temp. 7 C[44.6 F]DB/ 6 C[42.8 F]WB 2. Capacities are net capacities 3. Due to our policy of innovation some specifications may be changed without prior notification 4. To be added for more available models 5. : Electronic expansion valve Conversion formula = x 860 = x 3412 cfm = m 3 /min x 35.3 l/s = CMM x 1000/60 nly for training and service purposes 4 LGE Internal Use nly
Cooling capacity Heating capacity Casing Model Unit Body Dimensions(WxDxH) Front panel Coil Rows x Columns x FPI Face area m 2 (ft 2 ) Motor output x number W Running current A Fan Air flow rate(h/m/l) CMM cfm Drive Motor type Temperature control Sound absorbingthermal insulation material Safety device Liquid side Pipe connections Gas side Drain pipe(internal dia.) Net weight Body kg(lbs) Noise level(sound press, 1.5m, H/M/L) db(a)+1 Power supply Refrigerant control Power cable Transmission cable Panel color Panel name(acc'y) Panel type Grille type Ø, V, Hz 1Way ceiling cassette (art type) ARNU18GTTC4 ARNU18GTTA4 5.6 5.6 4,800 4,800 19,100 19,100 6.3 6.3 5,400 5,400 21,500 21,500 1,180x450x132 1,180x450x132 4615/32 x 1723/32 x 53/16 4615/32 x 1723/32 x 53/16 1,420x500x34 1,420x500x34 5529/32 x 1911/16 x 111/32 5529/32 x 1911/16 x 111/32 0.24 (2.58) 0.24 (2.58) 30 30 0.3 0.3 13.3/12.1/10.9 13.3/12.1/10.9 470 / 427 / 385 470 / 427 / 385 Thermostat for cooling and heating Thermostat for cooling and heating 25(1) 25(1) 15.6(34.39) 18.7(41.23) 40/37/35 40/37/35 1, 220 ~ 240, 50 1, 220 ~ 240, 50 1, 220, 60 1, 220, 60 CVVSB 1.0 ~ 1.5 2C CVVSB 1.0 ~ 1.5 2C PTUTD PTUTC PTUTC Notes: 1. Capacities are based on the following conditions: Cooling Indoor temp. 27 C[80.6 F]DB/ 19 C[66.2 F]WB utdoor temp. 35 C[95 F]DB/ 24 C[75.2 F]WB Heating Indoor temp. 20 C[68 F]DB/ 15 C[59 F]WB utdoor temp. 7 C[44.6 F]DB/ 6 C[42.8 F]WB 2. Capacities are net capacities 3. Due to our policy of innovation some specifications may be changed without prior notification 4. To be added for more available models 5. : Electronic expansion valve Conversion formula = x 860 = x 3412 cfm = m 3 /min x 35.3 l/s = CMM x 1000/60 nly for training and service purposes 5 LGE Internal Use nly
Cooling capacity Heating capacity Casing Model Unit Body Dimensions(WxDxH) Front panel Coil Rows x Columns x FPI Face area m 2 (ft 2 ) Motor output x number W Running current A Fan Air flow rate(h/m/l) CMM cfm Drive Motor type Temperature control Sound absorbingthermal insulation material Safety device Liquid side Pipe connections Gas side Drain pipe(internal dia.) Net weight Body kg(lbs) Noise level(sound press, 1.5m, H/M/L) db(a)+1 Power supply Refrigerant control Power cable Transmission cable Panel color Panel name(acc'y) Panel type Grille type Ø, V, Hz 1Way ceiling cassette (art type) ARNU24GTTC4 ARNU24GTTA4 7.1 7.1 6,100 6,100 24,200 24,200 7.1 7.1 6,100 6,100 24,200 24,200 1,180x450x132 1,180x450x132 4615/32 x 1723/32 x 53/16 4615/32 x 1723/32 x 53/16 1,420x500x34 1,420x500x34 5529/32 x 1911/16 x 111/32 5529/32 x 1911/16 x 111/32 0.24 (2.58) 0.24 (2.58) 30 30 0.3 0.3 14.6/13.3/11.5 14.6/13.3/11.5 515 / 470 / 406 515 / 470 / 406 Thermostat for cooling and heating Thermostat for cooling and heating Ø9.52(3/8) Ø9.52(3/8) Ø15.88(5/8) Ø15.88(5/8) 25(1) 25(1) 15.6(34.39) 18.7(41.23) 43/40/36 43/40/36 1, 220 ~ 240, 50 1, 220 ~ 240, 50 1, 220, 60 1, 220, 60 CVVSB 1.0 ~ 1.5 2C CVVSB 1.0 ~ 1.5 2C PTUTD PTUTC PTUTC Notes: 1. Capacities are based on the following conditions: Cooling Indoor temp. 27 C[80.6 F]DB/ 19 C[66.2 F]WB utdoor temp. 35 C[95 F]DB/ 24 C[75.2 F]WB Heating Indoor temp. 20 C[68 F]DB/ 15 C[59 F]WB utdoor temp. 7 C[44.6 F]DB/ 6 C[42.8 F]WB 2. Capacities are net capacities 3. Due to our policy of innovation some specifications may be changed without prior notification 4. To be added for more available models 5. : Electronic expansion valve Conversion formula = x 860 = x 3412 cfm = m 3 /min x 35.3 l/s = CMM x 1000/60 nly for training and service purposes 6 LGE Internal Use nly
2. List of Functions Category Air flow Air purifying Installation Reliability Convenience Individual control Special function kit Function Air supply outlet Airflow direction control(left & right) Airflow direction control(up & down) Auto swing(left & right) Auto swing(up & down) Airflow steps(fan/cool/heat) Chaos swing Chaos wind(auto wind) Jet cool(power wind) Swirl wind Deodorizing filter Plasma air purifier Prefilter(washable / antifungus) Robot cleaner Drain pump E.S.P. control Electric heater(operation) High ceiling operation Hot start Self diagnosis Soft dry operation Auto changeover Auto cleaning Auto operation(artificial intelligence) Auto restart operation Child lock Forced operation Group control Sleep mode Timer(on/off) Timer(weekly) Two thermistor control Elevation grill (accessory) Standard wired remote controller Deluxe wired remote controller Simple wired remote controller Wired remote controller(for hotel use) Wireless remote controller(simple) Wireless LCD remote control Zone control CTIE Electro thermostat 1 X 4/5/4 X ption ption ption X (nly heat recovery) (Heat pump or cooling only) x Accessory Accessory Accessory Accessory X Accessory * Model Name C:Plasma, A:Basic ARNU24GTT*4 /ARNU18GTT*4 /ARNU12GTU*4 /ARNU09GTU*4 /ARNU07GTU*4 : Applied X : Not applied : No relation ption : 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. nly for training and service purposes 7 LGE Internal Use nly
3. Piping Diagrams Heat exchanger Filter :Cooling :Heating Th3 C.F.F. Th2 Filter Th1 lndoor unit Refrigerant pipe connection port diameter Model ARNU07GTU*4 ARNU09GTU*4 ARNU12GTU*4 ARNU18GTT*4 ARNU24GTT*4 Gas Ø15.88(5/8) [Unit: ] Liquid Ø9.52(3/8) * Model Name C:Plasma, A:Basic LC. Description PCB Connector (Color) Th1 Thermistor for room air temperature CNRM (Yellow) Th2 Thermistor for pipe in temperature CNPIPE_IN () Th3 Thermistor for pipe out temperature CNPIPE_UT (Red) nly for training and service purposes 8 LGE Internal Use nly
4. Wiring Diagrams Plasma / Standard model : ARNU**GT*C4/A4 CN_DPUMP CN_ CN_DISPLAY CN_MTR1 CN_FLAT CN_PTIN CN_RM CN_PIPE_IN CN_LEAK CN_PIPE_UT CN_2 CN_EXT CN_VANE1 CN_CC CN_PWER CN_VANE2 CN_AIRC CN_REM CN_485 nly for training and service purposes 9 LGE Internal Use nly
5. DIP Switch Setting 1. Indoor Unit SW1 SW2 SW3 SW4 SW5 SW6 SW7 SW8 Function Description Setting ff Setting n Default Counication N/A (Default) ff Cycle N/A (Default) ff Group Control Selection of Master or Slave Master Slave ff Dry Contact Mode Selection of Dry Contact Wired/Wireless remote Mode controller Selection of Manual or Auto Auto ff operation Mode Installation Heater linkage Ventilator linkage Vane selection (Console) Region selection Etc. Fan continuous operation N/A Selection of Ventilator linkage Selection of up/down side Vane Selection tropical region Spare Continuous operation Removall Linkage Removal Up side + Down side Vane General model Working Up side Vane nly Tropical model ff ff ff ff For Multi V Models, DIP switch 1, 2, 6, 8 must be set FF. 2. utdoor Unit In case that the products meet specific conditions, Auto addressing function can start automatically with the improved 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 ctober 2013. DIP switch 7 segment utdoor Unit PCB utdoor Unit DIP Switch nly for training and service purposes 10 LGE Internal Use nly
6. Exploded View TT chassis : Plasma model (ARNU**GTTC4) 152301 152302 W3110 159830A 158580 158591 266010 330870 352118 263230C 152500 55211G 159830B 135500A 354210 263230B 346810 359011B 135500B 149304 342800A 359011A 352380A 352380B 342800B 352150A 135500C 352380D 135511 352380E 135500E 249951 W6640A 131410 268711B 268711D 268711E 263230A 266090 352150B 135500D W6640B W50010 LC. SVC No. Description PCB Connector (Color) Th1 263230A Thermistor for room air temperature CNRM (Yellow) Th2 263230B Thermistor for pipe in temperature CNPIPE_IN () Th3 263230C Thermistor for pipe out temperature CNPIPE_UT (Red) nly for training and service purposes 11 LGE Internal Use nly
6. Exploded View TT chassis : Standard model (ARNU**GTTA4) 152301 152302 W3110 159830 158591 158580 266010 330870 352118 152500 263230C 55211G 135500A 354210 263230B 346810 W50010 352150A 359011A 135500B 342800A 359011B 149304 352380B 352150B 352380A 342800B 135500C 352380D 135511 352380E 135500E W6640A W6640B 268711B 268711E 268711D 263230A 249951 131410 130911 135500D LC. SVC No. Description PCB Connector (Color) Th1 263230A Thermistor for room air temperature CNRM (Yellow) Th2 263230B Thermistor for pipe in temperature CNPIPE_IN () Th3 263230C Thermistor for pipe out temperature CNPIPE_UT (Red) nly for training and service purposes 12 LGE Internal Use nly
6. Exploded View TT chassis front panel (grille type) : PTUTC 135316A 135800 135800 237202A 237202B 135316B 137213A W4810A 137211 137213B 268711 W4810C 147581 W4810A 145200C 135500 147582 145200A W3110 145200B W3110 147740 349600 146811A 266001 146811B 266001 145200D nly for training and service purposes 13 LGE Internal Use nly
6. Exploded View TU chassis : Plasma model (ARNU**GTUC4) 159830A 152301 158591 330870 158580 266010 352118 263230C 152500 W3110 55211G 263230B 354210 159830B 135500A 359011 346810 352380A 352380D 342800 149304 352150A 135500C 135511 135500B 249951 352150B W6640A 268711B 268711D 268711E 263230A 266090 131410 W6640B W50010 135500D LC. SVC No. Description PCB Connector (Color) Th1 263230A Thermistor for room air temperature CNRM (Yellow) Th2 263230B Thermistor for pipe in temperature CNPIPE_IN () Th3 263230C Thermistor for pipe out temperature CNPIPE_UT (Red) nly for training and service purposes 14 LGE Internal Use nly
6. Exploded View TU chassis : Standard model (ARNU**GTUA4) 159830 152301 158591 330870 W3110 158580 266010 263230B 352118 152500 55211G 354210 263230C 135500A 359011 346810 352380D 130911 352380A 342800 352150A 149304 135500C 135511 135500B 249951 W6640A W6640B 268711B 268711E 268711D 263230A 131410 135500D 352150B W50010 LC. SVC No. Description PCB Connector (Color) Th1 263230A Thermistor for room air temperature CNRM (Yellow) Th2 263230B Thermistor for pipe in temperature CNPIPE_IN () Th3 263230C Thermistor for pipe out temperature CNPIPE_UT (Red) nly for training and service purposes 15 LGE Internal Use nly
6. Exploded View TU chassis : Front panel (grille type) : PTUUC 137213A 135800 135316 W4810A 137211 268711 147581 137213B 147582 145200C 135500 W4810A 145200B W3110 145200A 266001 W3110 147740 W4810B 146811 266001 146811 145200D nly for training and service purposes 16 LGE Internal Use nly
7. Selfdiagnosis function Error Indicator This function indicates types of failure in selfdiagnosis and occurrence of failure for air condition. Error mark is displayed on display window of indoor units and wired remote controller, and 7segment 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 7segment 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 unit (repetition) 213 : No.21 error of slave2 1051 : No.105 error of master unit Refer to the DXVenitilation manual for DXVenitilation error code Error Compressor Unit(1:Master, 2:Slave 1, 3:Slave 2) Error number Display Title Cause of Error 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 Counication error : wired remote controller indoor unit Failing to receive wired remote controller signal in indoor unit PCB In do or un it rel at ed err or 0 4 Drain pump Malfunction of drain pump 0 5 Counication error : Indoor counication PCB indoor unit Indoor Unit PCB did not receive signal from Indoor counication PCB for over 3 minutes continuously 0 6 utlet pipe temperature sensor of indoor unit utlet pipe temperature sensor of indoor unit is open or short 0 9 Indoor EEPRM Error 1 0 Poor fan motor operation In case when the serial number marked on EEPRM of Indoor unit is 0 or FFFFFF 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 7 2 3 8 Counication defect in indoor counication PCB outdoor counication PCB Counication error in outdoor counication PCB outdoor unit Indoor counication PCB did not receive signal from outdoor counication PCB for over 3 minutes continuously utdoor counication PCB did not receive counication signal from outdoor unit for over 3 minutes continuously nly for training and service purposes 17 LGE Internal Use nly
P/N : MFL68506007 NVEMBER, 2014