LG LT-B2860HL Service Manual ▷ View online
–14–
(2) Outdoor Unit
1. LT-B2460CL/B2860CL/B2420CL
B2820CL/B3020CL
2. LT-B2460HL/B2420HL
3. LT-B2860HL
4. LT-B2820HL/B3020HL
COMP.
MOTOR
R
S
C
RD
BL
BL
P.T.C
(OPTION)
BR
BR
BR
BL
BL
BL
FUSE(5A)
FUSE(5A)
BL
YL
RD
POWER
RELAY
8
4
1
6
2
0
CAPACITOR
GN/YL
TO INDOOR
POWER INPUT
1(N) 2(L)
3(N) 4(L)
5
6
7
8
TERMINAL
BLOCK
GN/YL
OR
BR
BK
BR
COMP.
MOTOR
R
S
C
BL
BR
BR
BR
BR
BL
BL
BK
BK
WH
BL
CRANK CASE
HEATER
FUSE(5A)
FUSE(5A)
BL
RD
YL
BK
OR
OR
BK
BK
RD
REVERSING
COIL
BK
BK
YL
BL
POWER
RELAY
8
4
1
6
2
0
Capacitor
HIGH PRESSURE S/W
GN/YL
L1
L2
L3
GN/YL
TO INDOOR
POWER INPUT
1(N) 2(L)
3(N) 4(L)
5
6
7
8
TERMINAL
BLOCK
3854A90002G
GN/YL
BK
COMP.
MOTOR
R
S
C
BL
BR
BR
BR
BR
BL
BL
WH
BL
FUSE(5A)
FUSE(5A)
BL
RD
P.T.C
(OPTION)
BR
YL
OR
BK
BK
BK
BK
RD
REVERSING
COIL
BK
BK
YL
BL
POWER
RELAY
8
4
1
6
2
0
Capacitor
Capacitor
HIGH PRESSURE S/W
GN/YL
L1
L2
L3
GN/YL
TO INDOOR
POWER INPUT
1(N) 2(L)
3(N) 4(L)
5
6
7
8
TERMINAL
BLOCK
3854A90002N
GN/YL
BK
COMP.
MOTOR
R
S
C
BL
BR
BR
BR
BR
BL
BL
WH
BL
FUSE(5A)
FUSE(5A)
BL
RD
YL
OR
BK
BK
BK
BK
RD
REVERSING
COIL
BK
BK
YL
OR
BL
POWER
RELAY
8
4
1
6
2
0
Capacitor
Capacitor
HIGH PRESSURE S/W
GN/YL
L1
L2
L3
GN/YL
TO INDOOR
POWER INPUT
1(N) 2(L)
3(N) 4(L)
5
6
7
8
TERMINAL
BLOCK
GN/YL
BK
–15–
5. LT-B3680CL
THMO
C
H
L
T
O
I
N
D
O
O
R
Outdoor Unit Wiring Diagram
NOTE
BL : BLUE
BK : BLACK
BR : BROWN
OR : ORANGE GN/YL : GREEN/YELLOW
BK : BLACK
BR : BROWN
OR : ORANGE GN/YL : GREEN/YELLOW
63H2
TMo
Co
HIGH PRESSURE SWITCH FOR HEATING
TERMINAL BLOCK
RUN CAPACITOR FOR FMo
TM
CM
MAIN TERMINAL BLOCK
COMPRESSOR
F1
FMo
FUSE (250V, 5A)
OUTDOOR FAN MOTOR
P/NO : 3854A30042P
RD : RED
WH : WHITE
YL : YELLOW
WH : WHITE
YL : YELLOW
WIRING OF FIELD
(CONNECTING WIRE)
(CONNECTING WIRE)
TM
3Ø, 380-415V
POWER SUPPLY
BK
52C
1
3
5
31
2
4
6
32
B
A
BK
WH
BK
WH
RD
BK
BK
RD
BL
BK
WH
T1
T3
T2
CM
WH
WH
BL
BK
R S T N
Co
OR YL BL BK
OR YL BL BK
Co
FMo
1
FMo
2
GN/YL
3(N)
4(L)
5
6
6
7
F1
–16–
6. LT-B3680HL
Outdoor Unit Wiring Diagram
NOTE
BL : BLUE
BK : BLACK
BR : BROWN
OR : ORANGE GN/YL : GREEN/YELLOW
BK : BLACK
BR : BROWN
OR : ORANGE GN/YL : GREEN/YELLOW
63H2
C TH
20SV
52C
TMo
HIGH PRESSURE SWITCH FOR HEATING
THERMISTOR FOR PIPE TEMP.
REVERSING COIL
MAGNECTIC CONTACTOR
TERMINAL BLOCK
TM
52F1
CM
Co
FMo
MAIN TERMINAL BLOCK
RELAY FOR FMo
COMPRESSOR
RUN CAPACITOR FOR FMo
OUTDOOR FAN MOTOR
F1
DP
CH1
THMO
52F2
FUSE (250V, 5A)
DEICER PCB
CRANK CASE HEATER FOR CM
THEMOSTAT FOR COOLING
RELAY FOR FMO CONTROL.
P/NO : 3854A30042H
RD : RED
WH : WHITE
YL : YELLOW
WH : WHITE
YL : YELLOW
WIRING OF FIELD
(CONNECTING WIRE)
(CONNECTING WIRE)
TM
3Ø, 380-415V
POWER SUPPLY
BK
63H2
52C
1
3
5
31
2
4
6
32
B
A
BK
WH
BK
TNS
NO
C TH
NC
D.P
WH
T/B1
BK
WH
WH
WH
RD
BK
WH
BK
BK
RD
BL BK
BK
WH
T1
T3
T2
CH1
CM
YL
WH
WH
BL
BK
R S T N
Co
OR YL BL BK
OR YL BL BK
Co
FMo
1
FMo
2
20SV BK
BK
BK
BK
BK
WH
YL
WH
YL
BL
BL
THMO
C
L
H
GN/YL
T
O
O
I
N
D
O
O
R
3(N)
4(L)
5
6
6
7
7
8
52F2
1
2
3
4
5
6
7
8
52F1
1
2
3
4
5
6
F1
–17–
7. LT-B3620CL/B3660CL
Outdoor Unit Wiring Diagram
NOTE
BL : BLUE
BK : BLACK
BR : BROWN
OR : ORANGE GN/YL : GREEN/YELLOW
BK : BLACK
BR : BROWN
OR : ORANGE GN/YL : GREEN/YELLOW
52C
TMo
Co
MAGNETIC CONTACTOR
TERMINAL BLOCK
RUN CAPACITOR FOR FMo
TM
CM
CR
MAIN TERMINAL BLOCK
COMPRESSOR
RUN CAPACITOR FOR CM
F1
FMo
FUSE (250V, 5A)
OUTDOOR FAN MOTOR
P/NO : 3854A30042N
RD : RED
WH : WHITE
YL : YELLOW
WH : WHITE
YL : YELLOW
WIRING OF FIELD
(CONNECTING WIRE)
(CONNECTING WIRE)
TM
POWER SUPPLY
BK
Cr
52C
BK
BK
L1
T1
L2
T2
B
A
WH
BK
WH
BK
WH
BL
BK
BK
RD
R
C
S
CM
WH
WH
GN/YL
WH
BL
BK
1
(
N
)
2
(
L
)
Co
OR YL BL BK
OR YL BL BK
Co
FMo
1
FMo
2
THMO
C
H
L
GN/YL
T
O
I
N
D
O
O
R
3(N)
4(L)
5
6
6
7
F1
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