LG LP-K2060CL User manual

Package
Air Conditioner
SERVICE MANUAL
MODEL: LP-K2060CL/CA
LP-K3061CL/CA
LP-K3020CL/CA
LP-K4020CL/CA
Библиотека СОК 

Contents
Functions 3
Product Specifications (Cooling Model only) 5
Dimensions 6
Refrigeration Cycle Diagram 6
Wiring Diagram 7
Operation Details 9
Installation of Indoor, Outdoor Unit 14
Test Running 24
3-way Valve 26
Cycle Troubleshooting Guide 31
Electronic Parts Troubleshooting Guide 32
Electronic Control Device 33
Schematic Diagram 34
Exploded View and Replacement Parts List 35
–2–

–3–
Indoor Unit
Power Switch ON/OFF
Operation Mode Control
Indoor Fan Speed Control
Jet Cool
Energy Saving
Room Temperature control
Auto Operation
Soft Dry Operation Mode
Time Delay Safety Control
Fan Operation
AutoRestart
• Cooling, Auto, Soft Dry
• High, Low
• Speed Cooling operates super high fan speed in cooling mode
• Maintains the room temperature in accordance with the Setting Temp.
• Up: up to 30°C
• Down: down to 16°C
• The setting temperature, indoor fan speed and desired operation mode are automatically set.
• Intermittent operation of fan at low speed.
• Restarting is inhibited for approx. 3 minutes.
• Used to circulate room air without cooling.
• The power comes on again after a power failure.
Functions

–4–
• The setting temperature indoor fan speed and desired operation mode are automatically set.
• Intermittent operation of fan at low speed.
• Used to circulate room air without cooling.
• OFF Timer (1, 2, 3,......7 hour)
• Speed cooling operates super high fan speed in cooling mode.
• Airflow direction Auto-swing and Manual Contol.
• Up: up to 30°C
• Down: down to 16°C
• High, Low
Remote Control
Operation ON/OFF
Cooling Operation Mode
Auto Operation Mode
Sot Dry Operation Mode
Fan Operation
Timer Control
Jet Cool
Energy Saving
Airflow Direction Control
Room Temperature Control
Indoor Fan speed control

Product Specifications
–5–
POWER SUPPLY Ø, V, Hz
COOLING CAPACITY Btu/hr
HEATING CAPACITY Btu/hr
(Incl. elec. Heater)
POWER INPUT COOLING W
HEATING W
RUNNING COOLING A
CURRENT HEATING A
MODEL
MAKER
TYPE
COMPRESSOR CAPACITY Btu/hr
INPUT (KW)
LRA A
NOISE LEVEL INDOOR dB(A)
OUTDOOR dB(A)
AIR INDOOR
CFM/CMM
CIRCULATION OUTDOOR
CFM/CMM
REFRIGERANT (R-22) OZ(kg)
HEAT INDOOR R/C/FPI
EXCHANGER OUTDOOR R/C/FPI
FAN INDOOR TYPE
OUTDOOR TYPE
ROOM TEMPERATURE CONTROL
WIDTH
INDOOR HEIGHT inch(mm)
DEPTH
WIDTH
OUTDOOR HEIGHT inch(mm)
DEPTH
NET WEIGHT INDOOR Ib(kg)
OUTDOOR Ib(kg)
CONNECTIONS LIQUID inch(mm)
GAS inch(mm)
1, 220-240, 50
20,000
-
1,900
-
9
-
FX24QP12CA
LG
SCROLL
20,000
1.94
53
45
53
600/17
2,046/58
55(1.56)
2/22/18
2/24/18
SIROCO
PROPELLER
MICOM CONTROL
19.68(500)
70.86(1800)
12.59(320)
34.25(870)
25.78(655)
12.59(320)
88.18(40)
138.6(63)
1/4"(Ø6.35)
5/8"(Ø15.88)
1, 220,60
27,800
-
3,400
-
16
-
AWG5532EXN
TECUMSHE
RECIPRO
31,500
3.3
90
48
58
670/19
2,046/58
63.5(1.8)
3/22/18
2/24/18
SIROCO
PROPELLER
MICOM CONTROL
19.68(500)
70.86(1800)
12.59(320)
34.25(870)
25.78(655)
12.59(320)
88.18(40)
138.6(63)
3/8"(Ø9.52)
5/8"(Ø15.88)
1, 220-240, 50
27,800
-
2,850
-
13
-
H23B33SABHA
BRISTOL
RECIPRO
28,300
2.76
76
48
58
670/19
2,046/58
60.0(1.7)
3/22/18
2/24/18
SIROCO
PROPELLER
MICOM CONTROL
19.68(500)
70.86(1800)
12.59(320)
34.25(870)
25.78(655)
12.59(320)
88.18(40)
138.6(63)
3/8"(Ø9.52)
5/8"(Ø15.88)
1, 220,60
36,000
-
3,500
-
17
-
CR38K6-PFV-502
COPELAND
RECIPRO
38,200
3.52
102
52
62
741/21
2,225/63
84.6(2.4)
3/22/18
2/30/18
SIROCO
PROPELLER
MICOM CONTROL
19.68(500)
70.86(1800)
12.59(320)
34.25(870)
31.49(800)
12.59(320)
88.18(40)
147.7(67)
3/8"(Ø9.52)
5/8"(Ø15.88)
ITEMS UNIT
MODEL LP-K2060CL/CA LP-K3020CL/CA LP-K3061CL/CA LP-K4020CL/CA
D
I
M
E
N
S
I
O
N
S

Dimensions
Indoor Unit
Air Outlet Vent
Remote Signal
Receptor
Air Intake Vent
Air Intake Vent
(Rear)
Air Outlet
Vent
INDOOR UNIT OUTDOOR UNIT
HEAT
EXCHANGER HEAT
EXCHANGER
COMPRESSOR
GAS SIDE
LIQUID SIDE
COOLING
HEATING
REVERSING
VALVE
CHECK VALVE
CAPILLARY TUBE
CAPILLARY TUBE
BY PATH CAPILLARY TUBE
–6–
Outdoor Unit
Refrigeration Cycle Diagram

Wiring Diagram
(1) • LP-K3061CL/CA
LP-K3020CL/CA
INDOOR UNIT OUTDOOR UNIT
DISPLAY
PCB ASM
CA MODEL
MAIN PCB ASM
RY-S/HIGH
RY-AIRC
BK
CN-DISP(1) CN-DISP(2)
CN1 CN2
ROOM
TH
DOOR S/W
BK RD
BK
WH
RD
HVB
ASM A/CL
UNIT
OR BR YL
Ci
WH
BK
BL
RD
GN/YL
RY-COMP RY-SYNC
(250V/3A) SM
EVAP
TH
RY-HIGH
RY-MID
RY-LO
RD
GN/YL
WH
BK
BK
GN/YL
BL
BR
FUSE
CN-GND
GN/YL
P/No.; 3854A90012Q
CIRCUIT DIAGRAM
FAN
MOTER
COMP.
POWER
RELAY
POWER INPUT
HIDDEN LINE: FIELD WIRING
(CONNETING CABLE)
CAPACITOR
BR
BR
BR BL BR
OR
BR
BL
BL
TERMINAL
BLOCK(6P)
1
F1
F2
234
GN/YL
56
BL BK
BK
BL
BL
BK
BK
BR
CR
S
RD BL
OR YL
GN/YL
26
48
0
1
CAPACITOR
FAN
MOTOR
NOTE
BL
BK
BR
RD
OR
WH
YL
GN/YL:GREEN/YELLOW
BLUE
BLACK
BROWN
RED
ORANGE
WHITE
YELLOW
:
:
:
:
:
:
:
–7–

Wiring Diagram
(2) Indoor Unit
•LP-K4020CL
(3) Outdoor Unit
•LP-K4020CL
–8–
NOTE
SM
Ci
FMi
THi
Co
FMo
Cr
52C
Tmo1,2
CM
63H
SYNCHRONOUS MOTOR
CAPACITOR FOR FAN(INDOOR)
INDOOR FAN MOTOR
THERMISTOR FOR INDOOR TEMP.
CAPACITOR FOR FAN(OUTDOOR)
OUTDOOR FAN MOTOR
RUN CAPACITOR FOR COMP.
MAGNATIC CONTACTOR
TERMINAL BLOCK(OUTDOOR)
COMPRESSOR MOTOR
HIGH PRESSURE SWITCH
NOTE
RD
BL
BK
WH
GY
RED
BLUE
BLACK
WHITE
GRAY
:
:
:
:
:
BR
VT
GN
OR
GN
BROWN
VIOLET
GREEN
ORANGE
GREEN/YELLOW
:
:
:
:
/YL :
FIELD WIRING
INDOOR UNIT CIRCUT DIAGRAM
DISPLAY
PCB ASM
RY-SH OR
BR YL
Ci
WH
BK
BL
RY-COMP
RY-SYNC
(250V 3A) SM
FMi
THi
RY-H
RY-MID
BK
WH
RD
BK
WH
RD
FUSE
CONNECT TO
OUTDOOR UNIT
NOTE
CM
Co
FMo
Cr
52C
Tmo1,2
63H
COMPRESSOR MOTOR
CAPACITOR FOR FAN
(OUTDOOR)
OUTDOOR FAN MOTOR
RUN CAPACITOR FOR COMP.
MAGNATIC CONTACTOR
TERMINAL BLOCK(OUTDOOR)
HIGH PRESSURE SWITCH
RD
BL
BK
WH
GY
RED
BLUE
BLACK
WHITE
GRAY
:
:
:
:
:
BR
VT
GN
OR
GN
BROWN
VIOLET
GREEN
ORANGE
GREEN/YELLOW
:
:
:
:
/YL :
FIELD WIRING
OUTDOOR UNIT CIRCUT DIAGRAM
CONNECT TO
INDOOR UNIT
P/No.: 3854AP2708P
CM
POWER SUPPLY
1ø, 220V, 60Hz
Tmo1
1 2 3 4 5 6
L1
T1 L2 T2 52C
B
A
FMo
OR
RD
WH
BR
BK
BK
WH
WH
Tmo2
RD
RDWHBK
WH
GN/YL
RD
RD
BK
BK
63H
FUSE
250V
5 A
WH
RSC
WH
PTCR
Cr
BK
BK YL
Co
FUSE
250V
5 A
BR
OR
(CAUTION)
1. This product is only for 1ø, 220V, 60Hz.
2. "Check List" before test run.
1st: Reconfirm the wiring connecting of compresssor,
outdoor unit motor.
2st: Fasten the screw of Terminal block
'Tmo1' once more.

–9–
(1) The function of main control
1. Time Delay Safety Control
3min The compressor is ceased for 3 minutes to balance the pressure in the refrigeration cycle.
(Protection of compressor)
3sec The indoor fan is ceased for 3 seconds to prevent relay noise.
(Protection of fan relay and micro chip)
30sec The 4-way valve is ceased for 30 sec. to prevent the refrigerant-gas abnormal noise when the Heating
operation is OFF or switched to the other operation mode.
2. Airflow Direction Control
This function is to swing the louver left and right automatically and to set it at the desired position.
The procedure is as the following.
1st : Press the ON/OFF Button to operate the product.
2nd : Press the Airflow Direction Control Button to swing the louver left and right automatically.
(Remote controller)
3rd : Repress the Airflow Direction Control Button to set the louver as the desired position.
(Remote controller)
8HP Model don't have this function.
3. Cooling Mode Operation
When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the
controller and the operation diagram is as following.
Intake Air temp.
Setting Temp. +1°C
(Compressor ON)
Setting Temp. -1°C
(Compressor OFF)
Indoor Fan Speed Selecting
fan speed Selecting fan speed Selecting fan speed Selecting fan speed Selecting fan speed
3 minutes
More than 3 minutes More than
Compressor ON OFF ON OFF ON
Operation Details

–10–
4. Auto Operation (Cooling Model only)
The operation procedure is as following.
Auto Operation for Cooling
Press Start/Stop Button
Select Auto Operation Mode
Check the Room temperature
Operation Condition Intake-air Temperature Setting temperature Fan speed
Over 26°C25°C
Over 24°C~below 25.5°C Intake air -1.0°C
Over 22°C~below 23.5°C Intake air -0.5°C
below 21.5°C Intake air Temperature(18°C, MAX)
When Switch to
Auto Operation
Controlled
by Fuzzy logic
Intake Air Temp.
Indoor Fan Speed
Compressor ON OFF
Fuzzy Speed
ON OFF
Setting Temp. +1°C
(Compressor ON)
Setting Temp. -1°C
(Compressor OFF)
3 minutes
More than 3 minutes More than
5. Off Timer Function
This function is to set the time of stopping the unit operation.
The procedure is as the following.
1st: Press the timer set button on the Remocon.
2nd: The buzzer sounds and then the display window shows the Off-Time to be set as
- The Off-Time is shifted as the following by each press.
- If you select ' ', the Off-Timer function will be cancelled.
- During Off-Timer Operation, if you repress the timer set button, the rest time will be displayed.
....