LG AUUW243D User manual

Air Conditioner
SVC MANUAL(Exploded View)
MODEL : AUUW243D[LUU245HV]
CAUTION
Before Servicing the unit, read the safety precautions in General SVC manual.
Only for authorized service personnel.
Internal Use Only
http://biz.lgservice.com

- 2 -
Copyright ©2009 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 notic for purpose of
improvement.
Indoor Unit
Nominal Capacity Cooling Btu/h
(Min~Rating~Max) Heating Btu/h
Nominal Input Cooling kW
(Min~Rating~Max) Heating kW
Nominal Capacity Cooling Btu/h
(Min~Rating~Max) Heating Btu/h
Nominal Input Cooling kW
(Min~Rating~Max) Heating kW
Indoor Unit
Indoor Unit
ATNH243PLAD
APNH2433LAD
24,000
26,000
2.40
2.50
24,000
26,000
2.50
2.55
Outdoor Unit
Compressor Type
Refrigerant Charge Charge* g(oz)
Type
Fan Discharge Side/Top
Noise Level(H/L) Sound Press,1m dB(A)±3
Dimensions W*H*D mm (inch)
Net Weight Outdoor kg(lbs)
Piping connections Liquid mm (inch)
Gas mm (inch)
Power Supply Cable(Includes earth) No.*AWG
Interunit Cable(Includes earth) No.*AWG
Max. Piping Length/Elevation m(ft)
Power Supply Ø,V,Hz
Running Current Cooling/Heating A
Air Circulation CMM(CFM)
Additional Refrigerant Charge (Over 7.5m) g/m(oz/ft)
Operation Range Cooling °C(°F)
Heating °C(°F)
Indoor Unit AUUW243D
Rotary
2000(70.6)
R410A
side
55
870*808*320(34.3*31.8*12.6)
60(132)
9.52 (3/8)
15.88 (5/8)
No.*12
No.*18
50(164)/30(98)
1, 208~230, 60
10.0/10.7
58(2048)
35(0.38)
-10(14) ~ 43(109.4)
-15(5) ~ 24(75.2)

- 3 -
Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
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.
Defrost / Deicing
High pressure switch
Low pressure switch
Reliability Phase protection
Restart delay (3-minutes)
Self diagnosis
Soft start
Test function
Convenience Auto operation(Artificial intelligence)
Auto restart operation
CAC network Network soluation(LGAP)
function PDI(Power Distribution Indicator)
PI485
Special Low ambient operation
function kit
Others Thermistor
FunctionCategory AUUW243D
O
O
X
X
O
O
O
X
O
O
X
X
X
O(Program Logic)
-
2. Function Table
Outdoor Unit

3. Piping Diagrams
Th1
E.E.V.
Accumulator
r
Inverter
Compressor
Heat
High Pressure
S/W
Exchanger
Reversing
Valve
OUTDOOR UNIT
Refrigerant Flow
Cooling
Heating
Gas
(Ø15.88mm)
Liquid
(Ø9.52mm)
Field Piping
Th2
Th4
Th3
Th5
- 4 -
Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
LOC. Description PCB Connector
EEV Electronic Expansion Valve CN_LEV1
Th1 Thermistor for suction pipe temperature CN_TH3
Th2 Thermistor for discharge pipe temperature CN_TH3
Th3 Thermistor for condenser pipe temperature CN_TH2
Th4 Thermistor for outdoor air temperature CN_TH2
Th5 Thermistor for condenser middle pipe temperature CN_TH4

- 5 -
Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
CN-4WAYCN-PFC OUT CN-PFC IN
CN-
CN-
CN-FLASH
CN-LGMV
CN-
CN-CP(N)
CN-CP(L)
TH3
TH4
TH2
CN-MOTOR1 CN-EEV1 CN-COM
Outdoor Unit
4. Wiring Diagrams