LG LK-0329AHF, LK-0429CH/AH, LK-0529CH/AH, LK-0529AHF, LK-0429AHF Service Manual
...
Single Packaged
Air Conditioner
SERVICE MANUAL
MODELS: LK-0329CH/AH, LK-0329AHF
LK-0429CH/AH, LK-0429AHF
LK-0529CH/AH, LK-0529AHF
LK-SM-101
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Contents
Model Number Nomenclature...............................................................................................3
General Data ..........................................................................................................................4
Dimensions............................................................................................................................5
Refrigerant Circuit Diagram..................................................................................................6
Wiring Diagram......................................................................................................................7
Troubleshooting Guide.........................................................................................................8
Features of Controller.........................................................................................................14
Exploded View and Replacement Parts List.....................................................................15
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LK-0529CH
Development Sequence
LG
Single Package Air Conditioner
H: Horizontal Flow
C: Cooling Only
A: Gold Fin + Cooling Only
2 : 220V, 60Hz, 1Ø
03 : 3 ton 04 : 4 ton 05 : 5 ton
Nominal cooling capacity
Model Number Nomenclature
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General Data
Table-1
Nominal ton (Ton) 3 4 5
Models LK-0329CH/AH(F) LK-0429CH/AH(F) LK-0529CH/AH(F)
Capacity ARI Net Cooling Capacity (BTU/hr) 35,000 47,000 57,000
(Kcal/h) 8,821 11,845 14,364
Electrical Data
Voltage (V,PH) 208~230V,1PH 208~230V,1PH 208~230V,1PH
M.C.A(with standard motor)
Cooling (Amps) 29 31 48
Power Input Cooling (Watt) 3,740 4,350 6,000
Performance
Air Circulation
Nominal
CFM
CFM 1,050 1,590 1,750
SEER Cooling (BTU/hr.W) 10.0 11.0 10.0
Sound Rating Cooling dB(A) 8 8.4 8.4
Features LG Electronic Thermostat Option Option Option
Time Delay Safety Function
OOO
Cooling Operation Mode
OOO
Heating Operation Mode(with E/Heater)
OOO
Soft Dry Operation - - Timer Setting (24-Hour on/off) - - Auto restart mode - - Humidifier function - - Test function - - Self-Diagnosis Function - - Filter type - - -
Compressor
Type
Scroll Scroll Scroll
Quantity 1 1 1
Outdoor Coil
Type
High efficiency High efficiency High efficiency
Tube size(O.D) (inch) 9/32 9/32 9/32
(mm) 7.00 7.00 7.00
Row/FPI 1R/18FPI 2R/18FPI 2R/18FPI
Lengh (inch) 55 1/8 55 1/8 55 1/8
(mm) 1,400 1,400 1,400
Face area (sq.ft) 10.72 10.72 10.72
(m2) 1.00 1.00 1.00
Indoor Coil
Type
High efficiency High efficiency High efficiency
Tube size(O.D) (inch) 3/8 3/8 3/8
(mm) 9.52 9.52 9.52
Row/FPI 2R/18FPI 3R/18FPI 3R/18FPI
Lengh (inch) 21 5/8 21 5/8 21 5/8
(mm) 550 550 550
Face area (sq.ft) 4.51 4.51 4.51
(m2) 0.42 0.42 0.42
Outdoor Fan
Type Propeller Propeller Propeller
No. Used/Diameter(in.) 1EA/22" 1EA/22" 1EA/22"
Drive Type Direct Direct Direct
CFM 3,500 3,500 3,500
No. Motor/Motor output(Hp) 1/0.33 1/0.33 1/0.33
Motor RPM 1,060 1,060 1,060
Indoor Fan
Type Centrifugal Blower Fan Centrifugal Blower Fan Centrifugal Blower Fan
No. Used 1EA 1EA 1EA
Diameter/Width(in.) 11"/11" 11"/11" 11"/11"
Drive Type/Motor Step Direct/3 Direct/3 Direct/3
No.motors 1EA 1EA 1EA
Motor output(standard/oversized) 0.5Hp/N.A 0.75Hp/N.A 0.75Hp/N.A
Motor rpm(Standard/oversized) 840N.A 1,020/N.A 1,090/N.A
Drain Connection Size(in.)
3/4" 3/4" 3/4"
Refrigerant
(kg) 1.7 2.2 2.3
Refrigerant Charge (lbs) 3.75 4.85 5.07
Type R-22 R-22 R-22
Refrigerant Control Capillary Tube Capillary Tube Capillary Tube
Dimensions
Indoor unit (WxHxD) (inch) 43 3/8*28 9/16*32 11/16 43 3/8*28 9/16*32 11/16 43 3/8*28 9/16*32 11/16
(mm) 1102*725*830 1102*725*830 1102*725*830
Weight Net (kg) 110 120 140
(lbs) 242.5 264.6 308.6
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Dimensions
LK-0329CH/AH(F), LK-0429CH/AH(F), LK-0529CH/AH(F)
A
G
BC D
E
H
SUPPLY
RETURN
F
E
Center line of hole
A
B
CLEARANCE 34"
CLEARANCE
48"
(HORIZONTAL)
CLEARANCE
34"
1.5" Dia. hole power wires
1.5" Dia. hole other purpose
CLEARANCE 18"
D
C
Unit : Inch(mm)
Unit : Inch(mm)
A28
9
/16
(725)
B32
11
/16
(830)
C43
3
/8
(1102)
D20
11
/16
(525)
E2
7
/8 (73)
A13
3
/16 (335)
B1
1
/
2 (38)
C9
1
/2 (242)
D
3
/4 (19)
E5
5
/8 (143)
F24
1
/4 (622)
G11
9
/16 (294)
H9
1
/16 (230)
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Refrigerant Circuit Diagram
SOUTDOOR
COIL
INDOOR
COIL
: REFRIGERANT FLOW
PRESSURE
PORT
SV
Bypass Cycle
(option)
DISCHARGE
LINE
SUCTION
LINE
LOW-PRESSURE
SWITCH
PRESSURE
PORT
D
CAPILLARY
TUBE
LK-0329CH/AH(F), LK-0429CH/AH(F), LK-0529CH/AH(F)
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