LG AB-H1208VA0 User manual

LG Large Duct-Type
Air Conditioner
SERVICE MANUAL
MODELS: AB-H1208VA0

AB-H1208VA0
120: 120,000 Btu/h
Development Sequence
H: Heat Pump
A: Basic Type
V: BV Chassis
Chassis Name
Cooling Capacity
A: Changwon, R-410A
B: Duct
Type of Air Conditioner
Model Type
8: 380-415V, 50Hz, 3Ø
Electric Standard (Volts / Freq. / Phase)
- 2 -
Contents
Model Number Nomenclature
Model Number Nomenclature...............................................................................................2
General Data ..........................................................................................................................3
Dimensions............................................................................................................................5
Wiring Diagram......................................................................................................................6
Troubleshooting Guide .........................................................................................................7
Features of Controller.........................................................................................................24
Exploded View and Replacement Parts List.....................................................................28

- 3 -
General Data
Indoor units
Power supply Ø/V/Hz
Gross cooling capacity kW
Btu/h
Net cooling capacity kW
Btu/h
Heating capacity kW
Btu/h
Current Rated running current A
Fan Motor type
Fan type
Motor output (W) x Number of unit
Air flow rate(H/M/L) CMM
CFM
External static pressure mmAq
Capacitor µF/V(ac)
Drive
Coil Rows x Column x FPI mm
Dimensions(WxHxD) Body mm(inch)
Weight Body kg(lbs)
Air filter
Sound level (H/M/L) dB(A)+3
Piping Liquid mm(inch)
connections Gas mm(inch)
Drain(OD/ID) mm
Dehumidification rate l/h
Safety devices
Temperature sensor
Referigerant
Referigerant control
Connectable outdoor unit
Power supply cable (indoor) No.x mm2
Transmission interunit cable(indoor to outdoor) No.x mm2
Model AB-H1208VA0
[B120AH SV0]
Indoor unit type Ducted Type
3 / 380 - 415 / 50
34.3
117,000
32.8
112,000
38.1
130,000
2.05
BLDC
Sirocco fan
1,491 x 1
105/97/90
3,708/3,426/3,179
20
-
Direct drive
3R x 24C x 17
1,600 x 720 x 800(63.0 x 28.3 x 31.5)
130(287)
prefilter
53/51/49
15.88(5/8)
28.58(11/8)
34/28
10
-
Thermistor
R410A
LEV
Single
4 x 1.25
2 x 1.25
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. Gross cooling capacity = Net cooling capacity + Heat of evaporator fan motor.
Conversion Formula
kW = Btu/h ×0.0002931
CFM = CMM ×35.3

- 4 -
General Data
Outdoor units
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. Gross cooling capacity = Net cooling capacity + Heat of evaporator fan motor
Conversion Formula
kW = Btu/h ×0.0002931
CFM = CMM ×35.3
Dimensions W x H x D mm(inch)
Net weight kg(lbs)
Max. number of connectable indoor units
Type
Qty x model
Compressor
(Constant) Motor type
Oil charge volume cc
Oil type
Charge(at 7.5m) g(oz)
Refrigerant Type
Control
Heat Exchanger Rows x Column x FPI
Defrosting method
Capacitor µF/V(ac)
Fan Drive
Discharge direction Side / Top
Air flow rate x No. of fan CMM(CFM)
Sound level Sound pressure at 1m dB(A)+3
Piping connections Liquid(Ø) mm(inch)
Gas(Ø) mm(inch)
Max. piping length Indoor unit~Outdoor unit m
Max. elevation Indoor unit~Outdoor unit m
1,280 x 1,520 x 730(50.4 x 59.8 x 28.7)
300(661)
1
Scroll
1 x AR073YAB
1 x AR081YAB
PSC
2,325 x 2
FVC68D(PVE)
8,000(282.2)
R410A
LEV
2R x 88C x 17
Reversing cycle
10/450
Direct drive
Top discharge
180(6,400)
65
15.88(5/8)
28.58(11/8)
50
30
Running current Cooling A
Heating A
Starting current Cooling A
Heating A
Power supply Ø / V / Hz
Power supply cable (outdoor) No. x mm
2
Transmission interunit cable (outdoor to indoor) No. x mm
2
24
21
-
-
3 / 380 - 415 / 50
5 x 8.5
2 x 1.25
Rated capacity Gross cooling kW
Btu/h
Net cooling kW
Btu/h
Heating kW
Btu/h
Rated input Cooling kW
Heating kW
Energy label
34.3
117,000
32.8
112,000
38.1
130,000
14.5
12.5
-
AB-H1208VA0
[B120AH SV0]
Outdoor unit

- 5 -
Dimensions
Model No.: AB-H1208VA0[B120 SV0]
1700
1600
798
837
398
544
662 712
1392.4
509
45
33 160
60
15
190 900(bolt hole)
1280
190
700(bolt hole)
730
690
670
1555
63 1444 48
100
Air
inlet
Air
inlet
Air outlet
Service Panel
Knockout hole
Knockout hole
(For the control wiring, the power supply,
refrigerant connecting pipe)
(For the control wiring,
the power supply,
refrigerant connecting
pipe)
1. Indoor Unit
2. Outdoor Unit