LG LM-1963H2L Service Manual ▷ View online
3854A20023C
INDOOR WIRING DIAGRAM
CN-DISP1
CN-U/D
FUSE
AC250V/T2A
CN-TH1
SSR
SH-CAPA.
BR
YL
OR
BK
ZNR
THERMISTOR
FORCED
OPERATION
OPERATION
AUTO
RESTART
RESTART
REMOTE
CONTROL
CONTROL
STEP
MOTOR
MOTOR
MAIN PCB
ASM
DISPLAY PCB ASM
TO OUTDOOR UNIT
PILLAR
TERMINAL
TERMINAL
BR
BL
YL
GN/YL
1(L) 2(N)
3
RY-COMP.
4
3
CN-POWER
CN-MOTOR
3854A20023D
INDOOR WIRING DIAGRAM
CN-DISP1
CN-U/D
FUSE
AC250V/T2A
CN-TH1
SSR
SH-CAPA.
BR
YL
OR
BK
CN-TAB1
ZNR
CN-MOTOR
THERMISTOR
FORCED
OPERATION
OPERATION
AUTO
RESTART
RESTART
REMOTE
CONTROL
CONTROL
STEP
MOTOR
MOTOR
MAIN PCB
ASM
DISPLAY PCB ASM
TO OUTDOOR UNIT
PILLAR
TERMINAL
TERMINAL
BR
BL
YL
GN/YL
1(L) 2(N)
3
RY-COMP.
4
3
3854A20023B
INDOOR WIRING DIAGRAM
CN-DISP1
CN-U/D
FUSE
AC250V/T2A
CN-TH
SSR
SH-CAPA.
BR
YL
OR
BK
CN-POWER
CN-FAN
ZNR
THERMISTOR
FORCED
OPERATION
OPERATION
AUTO
RESTART
RESTART
REMOTE
CONTROL
CONTROL
STEP
MOTOR
MOTOR
MAIN PCB
ASM
DISPLAY PCB ASM
TO OUTDOOR UNIT
PILLAR
TERMINAL
TERMINAL
BR
BL
YL
1(L) 2(N)
3
- 25 -
Wiring Diagram(Indoor Unit)
1. LM-1460C2L/M, LM-1723C2L/M
LM-1963C2L/M, LM-2163C2L/M(9K)
LM-1560C2L/M, LM-1723A2L
LM-1560C2L/M, LM-1723A2L
2. LM-2163C3L/M(12K)
3. LM-1460H2L/M, LM-1963H2L/M, LM-2163H2L/M, LM-2063H3L/M, LM-2064C3L/M,
LM-2561C3L/M, LM-3063H3L/M, LM-3063C3L/M
1
(
L
)
2
(
N
)
1
(
L
)
2
(
N
)
3
(
A
)
3
(
B
)
THERMISTOR
OUTDOOR WIRING DIAGRAM
MOTOR
COMP
C
S
S
C
R
R
CN-TH
5(B)
BL
YL
BL
BL
RD
CAPA.
F
C
H
BR
BK
RD
BR
O.L.P
BR
CN-FAN
YL
BL
BL
WH
MAIN
A unit
3854A30076F
B unit
BK
BK
T/BLOCK 1
T/BLOCK 2
TERMINAL
BLOCK(6P)
BL
WH
BK
BK
A
S/V
B
S/V
CN-S.V
RY-S.V2
RY-S.V1
7(A)
CN-TRANS
RY-HI
RY-COMP
CN-POWER
CN-COM
CN-COMP
FUSE(250V/3.15A)
MAIN P.C.B. ASM
1
(
L
)
2
(
N
)
1
(
L
)
2
(
N
)
3
(
A
)
3
(
B
)
THERMISTOR
OUTDOOR WIRING DIAGRAM
MOTOR
COMP
C
S
S
C
R
R
CN-TH
5(B)
BL
YL
BL
BL
RD
CAPA.
F
C
H
BR
BK
RD
BR
O.L.P
BR
CN-FAN
YL
BL
BL
RD
BK
WH
3854A30076E
BK
BK
T/BLOCK 1
T/BLOCK 2
TERMINAL
BLOCK(6P)
BL RD
WH
BK
BK
A
S/V
B
S/V
R/V
CN-S.V
RY-2 (S/V B)
RY-3 (R/V)
RY-1 (S/V B)
7(A)
CN-TRANS
RY-HI
RY-COMP
CN-POWER
CN-COM
CN-COMP
FUSE(250V/3.15A)
MAIN P.C.B. ASM
MAIN
A unit
B unit
BK
RD
R
C
O.L.P
BR
RD
WH
A-UNIT
TO INDOOR UNIT
OUTDOOR WIRING DIAGRAM
3854A20023A
B-UNIT
MAIN POWER
1(L) 2(N) 3 3 2(N) 1(L) 1(L) 2(N)
BK RD
BL
BL
BL
RD
POWER
RELAY
RELAY
OR
OR
MOTOR
YL
BK
O.L.P
T/B 3
T/B 4
T/B 1
T/B 2
C
R
FC
H
S
WH
BL
BR
BK
COMP
"B"
CAPACITOR
NO
NC
C
3
6
1
7
8
BK
WH
BK
BK
TERMINAL
BLOCK
GN/YL
GN/YL
S
COMP
"A"
YL
CAPACITOR
1
(
L
)
2
(
N
)
1
(
L
)
2
(
N
)
3
(
A
)
3
(
B
)
THERMISTOR
OUTDOOR WIRING DIAGRAM
MOTOR
COMP
C
S
S
C
R
R
CN-TH
5(B)
BL
YL
BL
BL
BR
RD
CAPA.
F
C
H
BK
RD
BR
CN-FAN
YL
BL
BL
BL
WH
3854A30076D
BK
BK
T/BLOCK 1
T/BLOCK 2
TERMINAL
BLOCK(6P)
BL
BK
WH
BK
BK
A
S/V
B
S/V
BP
S/V
CN-S.V
CN-BYPASS
RY-S.V1
RY-S.V2
RY-BP1
7(A)
CN-TRANS
RY-HI
RY-COMP
CN-POWER
CN-COM
CN-COMP
FUSE(250V/3.15A)
MAIN P.C.B. ASM
MAIN
A unit
B unit
- 26 -
Wiring Diagram(Outdoor Unit)
1. LM-1460C2L/M, LM-1560C2L/M
2. LM-1460H2L/M
3. LM-1723C2L/M, LM-1723A2L
4. LM-1963C2L/M
OUTDOOR WIRING DIAGRAM
3854AP3911C
MAIN PCB ASSY
TO INDOOR UNIT
A-UNIT
B-UNIT
MAIN
POWER
POWER
TERMINAL
BLOCK
BLOCK
CN-TRANS
BK
BK
BR
BL
BL
YL
BK
BK
BK
BK
BK
BK
OR
H
C
F
YL
BK
BK
"A"
COMP
BL
BK
RD
RD
S
R
C
OLP
C
R BR
BK
YL
S
BK
BK
T/B2
T/B1
T/B3
GN/YL
MOTOR
BK
7
4
3
3
1
1
3
2
1
5
3
1
3
1
BK
WH
WH
BK
GN/YL
GN/YL
WH
CN-COM
CN-TH1 CN-TH2
CN-POWER
CN-SV
RY
9
RY
3
RY
2
RY
1
R
Y10
CN-FAN
CN-COMP
CAPA.
CAP
A.
FUSE T3.15A
THERMISTOR
THERMISTOR
TRANS-
FORMER
FORMER
OLP
"B"
COMP
1(L)
1(L)
2(N)
1(L) 2(N)
2(N)
3
3
A 4-W
A
Y
B 4-W
A
Y
OPTION
MOTOR
B/P2 S
.V
OUTDOOR WIRING DIAGRAM
3854A20023E
MAIN PCB ASSY
TO INDOOR UNIT
A-UNIT
B-UNIT
C-UNIT
MAIN
POWER
TERMINAL
BLOCK
BLOCK
CN-TRANS
BK
BR
BL
BK
BK
BK
BK
"A"
COMP
BL
BK
BR
WH RD
BL
YL
BL
BL
BL
BK
BK
BL
BL BL
BK
BK
RD
RD
S
R
C
OLP
C
R
BR
BK
YL
S
BK
BK
YL
OR
OPTION
BK(Hi)
BK
T/B2
T/B3
OPTION
T/B1
T/B4
7
1
3
1
3
5
3
1
3
1
BK
WH
BK
WH
RD
WH
BK
GN/YL
CN-COM
CN-TH1 CN-TH2
CN-POWER
RY
8
R
Y9
RY
3
RY
2
RY
1
CN-FAN
CN-BYPASS
CN-COMP
CAP
A.
CAP
A.
FUSE T3.15A
THERMISTOR
THERMISTOR
TRANS-
FORMER
FORMER
OLP
OPTION
OPTION
2
1
R
Y10
RY
7
RY
5
RY
4
"B"
COMP
1(L)
1(L)
2(N)
1(L) 2(N)
2(N)
3
3
3
HC
F
B-S
.V
C-S
.V
A 4-W
A
Y
B 4-W
A
Y
4
3
2
1
CN-SV
BK
T/B1
BK
CAPA.
CAPA.
RY1
RY2
RY3
RY7
RY8
CN-TH2
CN-SV
CN-TH1
F
C
H
3
1
3
1
BK
BK
BL
BK
T/B2
BL
BL BL
WH
BR
BL
RD WH
GN/YL
TERMINAL
BLOCK
WH
BK
WH
BK
BK
BK
RD
BK
BK
BR
YL
YL
GN/YL
OR
RD
S
S
R
R
C
C
BK
RD
BL
CN-FAN
CN-COMP
BK
"B"
COMP
"A"
COMP
MOTOR
3
4
7
5
3
1
1
3
2
1
FUSE T3.15A
CN-POWER
CN-COM
MAIN PCB ASSY
CN-TRANS
TRANS-
FORMER
B S.V
C S.V
1(L) 2(N) 3 3 2(N) 1(L) 3 1(L) 2(N)
A-UNIT
B-UNIT
TO INDOOR UNIT
C-UNIT
MAIN
POWER
OUTDOOR WIRING DIAGRAM
3854A30076G
T/B3
OLP
OLP
BK
T/B1
BK
CAPA.
CAPA.
OLP
RY1
RY2
RY3
RY7
RY8
CN-TH2
CN-SV
CN-TH1
F
C
H
1
3
1
3
1
BK
BK
BL
BK
T/B2
BL
BL BL
WH
BR
BL
RD WH
GN/YL
TERMINAL
BLOCK
WH
BK
WH
BK
BK
BK
RD
BK
BK
BR
YL
YL
OR
RD
S
S
R
R
C
C
BK
BL
RD
CN-FAN
CN-COMP
BK
"A"
COMP
"B"
COMP
MOTOR
3
4
7
5
3
1
2
1
FUSE T3.15A
CN-POWER
CN-COM
MAIN PCB ASSY
CN-TRANS
TRANS-
FORMER
B S.V
C S.V
1(L) 2(N) 3 3 2(N) 1(L) 3 1(L) 2(N)
A-UNIT
B-UNIT
TO INDOOR UNIT
C-UNIT
MAIN
POWER
OUTDOOR WIRING DIAGRAM
3854A20023F
T/B3
- 27 -
5. LM-1963H2L/M, LM-2163H2L/M
6. LM-2063H3L/M, LM-3063H3L/M
7. LM-2064C3L/M, LM-2561C3L/M
8. LM-3063C3L/M
Operation Details
1. MAIN UNIT FUNCTION
• DISPLAY
1) C/O Model
Operation Indicator
• On while in appliance operation, off while in appliance pause
• Flashing while in disconnection or short in Thermistor (3 sec off / 0.5 sec on)
• Flashing while in disconnection or short in Thermistor (3 sec off / 0.5 sec on)
Sleep Timer Indicator
• On while in sleep timer mode, off when sleep timer cancel or appliance operation pause
Timer Indicator
• On while in timer mode (on/off), off when timer mode is completed or canceled.
Comp. Running Incidator
• While in appliance operation, on while in outdoor unit compressor running, off while in compressor off
2) H/P Model
Operation Indicator
• On while in appliance operation, off while in appliance pause
• Flashing while in disconnection or short in Thermistor (3 sec off / 0.5 sec on)
• Flashing while in disconnection or short in Thermistor (3 sec off / 0.5 sec on)
Sleep Timer Indicator
• On while in sleep timer mode, off when sleep timer cancel or appliance operation pause
Timer Indicator
• On while in timer mode (on/off), off when timer mode is completed or canceled
Defrost Indicator
• Off except when hot start during heating mode operation or while in defrost control
■
Cooling Mode Operation
• When the intake air temperature reaches 0.5°C below the setting temp, the compressor and the outdoor fan
stop.
• When it reaches 0.5°C above the setting temp, they start to operate again.
Compressor ON Temp
➲
Setting Temp+0.5°C
Compressor OFF Temp
➲
Setting Temp-0.5°C
• While in compressor running, operating with the airflow speed set by the remote control. While in compressor
not running, operating with the low airflow speed regardless of the setting.
■
Healthy Dehumidification Mode
• When the dehumidification operation input by the remote control is received, the intake air temperature is
detected and the setting temp is automatically set according to the intake air temperature.
26°C
≤
Intake Air Temp
➲
25°C
24°C
≤
Intake Intake Air Temp<26°C
➲
Intake Air Temp-1°C
18°C
≤
Intake Intake Air Temp<24°C
➲
Intake Air Temp-0.5°C
Intake Air Temp<18°C
➲
18°C
-28-
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