LG ARNU07GSF14 User manual

http://biz.lgservice.com
Please read this manual carefully before operating
your set and retain it for future reference.
EXPLODED VIEW
ARNU07GSF14
ARNU09GSF14
ARNU12GSF14
P/NO : MFL67372008
SERVICE MANUAL
AIR
CONDITIONER

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Copyright ©2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
1. Specification
Note:
1. Capacities are based on the following conditions:
Cooling: - Indoor Temperature 27°C(80.6°F) DB/19°C(66.2°F) WB
- Outdoor Temperature 35°C(95°F) DB/24°C(75.2°F) WB
Heating: - Indoor Temperature 20°C(68°F) DB/15°C(59°F) WB
- Outdoor Temperature 7°C(44.6°F) DB/6°C(42.8°F) WB
Piping Length - Interconnecting Piping Length 7.5m
- Level Difference of Zero
2. Wiring cable size must comply with the applicable local and national code.
3. The specification may be subject to change without prior notice for purpose of improvement.
Indoor
Indoor Unit Type Art Cool
Model ARNU07GSF14 ARNU09GSF14 ARNU12GSF14
Power Supply Ø / V / Hz 1/220~240/50 1/220~240/50 1/220~240/50
Cooling Capacity kW 2.2 2.8 3.6
Btu/h 7500 9600 12300
Heating Capacity kW 2.5 3.2 4.0
Btu/h 8500 10900 13600
Current Nominal Running Current A0.3 0.3 0.3
Fan
Motor Type BLDC BLDC BLDC
Fan Type TURBO FAN TURBO FAN TURBO FAN
Motor Output(W) x No. of Unit 24 24 24
Air Flow Rate CMM 8.1 / 6.3 / 4.2 8.1 / 6.3 / 4.2 9.3 / 7.7 / 6.0
(H / M / L) cfm 286 / 222 / 148 286 / 222 / 148 328 / 275 / 212
Capacitor μF / Vac 150 / 450 150 / 450 150 / 450
Drive Direct Direct Direct
Coil Row x Column x FPI 2 x 20 x 21FPI 2 x 20 x 21FPI 2 x 20 x 21FPI
Dimensions
(W x H x D) Body mm(inch) 600 x 600 x 146 (23.6 x 23.6 x 5.8)
600 x 600 x 146
(23.6 x 23.6 x 5.8)
600 x 600 x 146
(23.6 x 23.6 x 5.8)
Net Weight Body kg (lbs) 15.4(33.2) 15.4(33.2) 15.4(33.2)
Air Filter NEO PLAZMA NEO PLAZMA NEO PLAZMA
Sound Level (H / M / L) dB(A)+1 38 / 32 / 27 38 / 32 / 27 44 / 38 / 32
Piping Liquid mm (inch) 6.35(1/4) 6.35(1/4) 6.35(1/4)
Connections Gas mm (inch) 12.7(1/2) 12.7(1/2) 12.7(1/2)
Drain(OD/ID) mm 16.2 / 12.2 16.2 / 12.2 16.2 / 12.2
Safety Devices FUSE FUSE FUSE
Referigerant R410A R410A R410A
Referigerant Control EEV EEV EEV
Power cord H05RN-F 1.5 x 3C H05RN-F 1.5 x 3C H05RN-F 1.5 x 3C
Transmission cable CVV-SB 1.25 x 2C CVV-SB 1.25 x 2C CVV-SB 1.25 x 2C
Conversion Formula
kW = Btu/h x 0.0002931
cfm = CMM x 35.3

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Copyright ©2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
2. List of Functions
Air flow Air supply outlet 3
Airflow direction control(left & right) X
Airflow direction control(up & down) Automatic
Auto swing(left & right) X
Auto swing(up & down) O
Airflow steps(fan/cool/heat) 3/4/3
Chaos swing X
Chaos wind(auto wind) O
Jet cool(Power wind) O
Swirl wind O
Air purifying Deodorizing filter X
Plasma air purifier O
Prefilter(washable / anti-fungus) O
Installation Drain pump X
E.S.P. control X
Electric heater(operation) X
High ceiling operation X
Reliability Hot start O
Self diagnosis O
Soft dry operation O
Convenience Auto changeover O(only Sync.)
Auto cleaning O
Auto operation(artificial intelligence) O
Auto restart operation O
Child lock O(only wired remote controller)
Forced operation O
Group control O(only wired remote controller)
Sleep mode O(only Wireless remote controller)
Timer(on/off) O
Timer(weekly) O(only wired remote controller)
Two thermistor control O(only wired remote controller)
Individual control Wide wired remote controller PREMTB001 / PREMTBB01
Deluxe wired remote controller X
Simple wired remote controller PQRCVCL0Q(W)
Wired remote controller(for hotel use) PQRCHCA0Q(W)
Wireless LCD remote control PQWRHQ0FDB
Special function kit Zone control -
CTIE -
Electro thermostat -
Remote temperature sensor -
Group control wire PZCWRCG3
Dry contact PDRYCB100 / PDRYCB300 / PDRYCB400 / PDRYCB500
Category Function ARNU07GSF14/ARNU09GSF14/ARNU12GSF14
Note:
O : Applied, X : Not applied, – : No relation
*Option: 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.
*(COLOR) : E(RED), V(SILVER), G(GOLD), 1(KISS)

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Copyright ©2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
3. Piping Diagrams
Turbo Fan
Indoor Unit
Th2
Th2
Th3 Th2
Filter
EEV
Th1
Heat Exchanger : Cooling
: Heating
Filter
LOC. Description PCB Connector
Th1 Thermistor for inlet air temperature CN_TH1
Th2 Thermistor for Evaporator in temperature
Th3 Thermistor for Evaporator out temperature CN_TH2
Model Gas Liquid
*(COLOR) : E(RED), V(SILVER), G(GOLD)
ARNU07GSF14
ARNU09GSF14
ARNU12GSF14
12.7(1/2) 6.35(1/4)

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Copyright ©2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
4. Wiring Diagrams
CONNECTOR NUMBER LOCATION POINT FUNCTION
CN-POWER AC POWER SUPPLY AC POWER LINE INPUT FOR INDOOR CONTROLLER
CN-MOTOR1 FAN MOTOR OUTPUT MOTOR OUTPUT OF BLDC
CN-485 COMMUNICATION COMMUNICATION BETWEEN INDOOR AND OUTDOOR
CN-ACDC POWER TRANSMISSION POWER TRANSMISSION FROM POWER PCB TO FUNCTION PCB
CN-EEV EEV OUTPUT EEV CONTROL OUTPUT
CN-DISP DISPLAY DISPLAY OF INDOOR STATUS
CN-LR1 STEP MOTOR STEP MOTOR OUTPUT FOR LEFT/RIGHT
CN-LR2 STEP MOTOR STEP MOTOR OUTPUT FOR LEFT/RIGHT
CN-UD STEP MOTOR STEP MOTOR OUTPUT
CN-TH1 ROOM/PIPE SENSOR ROOM AND PIPE THERMISTOR
CN-TH2 EVA.OUT PIPE SENSOR EVA.OUT PIPE THERMISTOR
CN-REMO REMOTE CONTROLLER REMOTE CONTROL LINE
CN-CC DRY CONTACT DRY CONTACT LINE
CN-HVB AIR CLEAN AIR CLEAN CONTROL

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Copyright ©2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
CN-POWER CN-ACDC
CN-MOTOR1
CN-ACDC
CN-HVB
CN-CC
CN-EEV
CN-TH2
CN-TH1
CN-WF
CN-DISP CN-UDCN-LR1
CN-TH3
CN-LEAK
CN-MOTION/HUMID
CN-LR2
CN-PTC
CN-REMOCN-485 CN-WRITE CN-EXT1
AC PCB
DC PCB

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Copyright ©2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
263230C
352150
552120
354210
135515
131410
135316
268711A
152302
268711D
249951B
135500B
145200A
146811B
135500A
268711C
268711B
W6640A
W6640B
249951A
330871
349600
346810
359012
352380
147581
145200B
146811A
263230A
135080
268711E
W51620B
W51620A
263230B
159830
152301
266090
5. Exploded View
Note) * Please ensure GCSC since the replacement parts may be changed depending upon the buyer's request.
Please check the correct parts in View RPL(Replacement Part List) on GCGS.
(GCGS Website http://biz.Lgservice.com)
Thermistor 1 263230A Air Housing color : white
Thermistor 2 263230B Evaporator In Housing color : white
Thermistor 3 263230C Evaporator Out Housing color : red