LG LB-D1861HL / LB-D1861CL / LB-D2461HL / LB-D2461CL Service Manual ▷ View online
–12–
• COOLING ONLY (LB-D1861CL/LB-D2461CL/LB-F3661CL/LB-F3681CL/
LB-E4881CL/LB-E6081CL)
• Rated performance for refrigerant line length of: .7.5m
• If 18K Model is installed at a distance of 15m, 188g of refrigerant should be added (15-7.5)x25g=188g
• If 18K Model is installed at a distance of 15m, 188g of refrigerant should be added (15-7.5)x25g=188g
INDOOR UNIT
OUTDOOR UNIT
HEAT
EXCHANGER
(CONDENSER)
EXCHANGER
(CONDENSER)
HEAT
EXCHANGER
(CONDENSER)
EXCHANGER
(CONDENSER)
COMPRESSOR
GAS SIDE
LIQUID SIDE
CAPILLARY TUBE
Pipe size(Diameter: ø)
Piping length(m)
Elevation(m)
MODEL
Gas
Liquid
Rated
Max.
Rated
Max.
LB-D1861CL
5/8"
1/4"
7.5
50
5
30
25
LB-D2461CL
5/8"
1/4"
7.5
50
5
30
25
LB-F3661CL
5/8"
3/8"
7.5
50
5
30
40
LB-F3681CL
5/8"
3/8"
7.5
50
5
30
40
LB-E4881CL
3/4"
3/8"
7.5
50
5
30
50
LB-E6081CL
3/4"
1/2"
7.5
50
5
30
60
*Additional
refrigerant
(g/m)
–13–
Wiring Diagram
HEAT PUMP
Model : LB-D1861HL/LB-D2461HL
COOLING ONLY
Model : LB-D1861CL/LB-D2461CL
OUTDOOR WIRING DIAGRAM
INDOOR WIRING DIAGRAM
COMP
R
S
H
4
2
8
6
1
0
C
F
BL
YL
OR
BK
TB2
BR
BR
BR
BR
BL
BL
BL
BL
BL
GN/YL
GN/YL
BK
YL
RD
CAPACITOR
REVERSING
VALVE
RD
C
POWER
RELAY
RELAY
FAN
MOTOR
FUSE 5A
FUSE 5A
POWER
INPUT
TO INDOOR UNIT
TERMINAL
BLOCK
1
(
L
)
2
(
N
)
3
(
L
)
4
(
N
)
5
6
7
8
INDOOR
MOTOR
DRAIN
PUMP
BR
BR
YL
OR
RD
BL
BL
RD
BK
YL
BL
BL
BK
GN/YL
GN/YL
COMP
4 WAY
OUT FAN
FUSE
250V10A
TEMP.
THERMISTOR
PIPE
THERMISTOR
FLOAT S/W
REMOTE
CONTROL
ZONE
CONTROL
OPTION
TERMINAL
BLOCK
7
3
(
L
)
4
(
N
)
5
6
TO OUTDOOR UNIT
OUTDOOR WIRING DIAGRAM
INDOOR WIRING DIAGRAM
COMP
R
S
H
4
2
8
6
1
0
C
F
BL
YL
OR
BK
TB2
BR
BR
BR
BR
BL
BL
BL
BL
BL
GN/YL
GN/YL
YL
RD
CAPACITOR
RD
C
POWER
RELAY
RELAY
FAN
MOTOR
FUSE 5A
FUSE 5A
POWER
INPUT
TO INDOOR UNIT
TERMINAL
BLOCK
1
(
L
)
2
(
N
)
3
(
L
)
4
(
N
)
5
6
7
8
INDOOR
MOTOR
DRAIN
PUMP
BR
BR
YL
OR
RD
BL
BL
RD
BL
BL
BK
GN/YL
GN/YL
COMP
FUSE
250V10A
TEMP.
THERMISTOR
PIPE
THERMISTOR
FLOAT S/W
REMOTE
CONTROL
ZONE
CONTROL
OPTION
TERMINAL
BLOCK
7
3
(
L
)
4
(
N
)
5
6
TO OUTDOOR UNIT
–14–
HEAT PUMP
Model : LB-F3061HL
OUTDOOR WIRING DIAGRAM
INDOOR WIRING DIAGRAM
4
3854AP2708T
8
1
2
6
L3 L2 L1
0
R
C
S
5
6
1
3
2
4
CAPACITOR
BL
RD
BL
BR
BR
BK
SUMP
HEATER
HEATER
BK
BL
BL
BR
BK
BL
BR
BK
HIGH PRESS
SWITCH
DEICER
PCB
BR
BL
POWER
INPUT
TO INDOOR UNIT
TERMINAL
BLOCK
TERMINAL
BLOCK
BLOCK
12
FUSE 5A
FUSE 5A
POWER
RELAY
RELAY
REVERSING
VALVE
COMP
CAPACITOR
YL
OR
OR
BK
BK
BK
BK
WH
YL
FAN
MOTOR
INDOOR
MOTOR
DRAIN
PUMP
BR
BR
YL
OR
RD
BL
BL
RD
BK
BL
BL
BK
GN/YL
GN/YL
COMP
4 WAY
FUSE
250V10A
TEMP.
THERMISTOR
PIPE
THERMISTOR
FLOAT S/W
REMOTE
CONTROL
ZONE
CONTROL
OPTION
TERMINAL
BLOCK
7
3
(
L
)
4
(
N
)
5
6
TO OUTDOOR UNIT
3854A30086Q
–15–
HEAT PUMP
Model : LB-F3661HL
COOLING ONLY
Model : LB-F3661CL
OUTDOOR WIRING DIAGRAM
INDOOR WIRING DIAGRAM
7
8
1
TM
220-240V
1Ø, 50Hz
POWER SUPPLY
BK
63H2
52C
L1
L2
T1
T2
A2
A1
BK
WH
BK
52F1
1
2
3
4
5
6
TNS
NO
C TH
NC
D.P
WH
BK
WH
BK
WH
BL
RD
GN/YL
BL
BK
YL
WH
T/B1
F1
BK
WH
WH
WH
WH
Co
OR
YL
Co
OR
FMo
1
49FMo
3854A20025G
FMo
2
49FMo
20SV
YL
BK
BK
BR
BK
BL
BK
WH
BK
BK
BK
BK
GN/YL
Tmo
T
o
the indoor unit
WH
GN/YL
2
3
L
N
1
2
3
4
5
5
6
CH1
BK
WH
RD
R
C
S
CM
Cr
PTCR
INDOOR
MOTOR
DRAIN
PUMP
BR
BR
BL
RD
BK
GN/YL
YL
OR
RD
BL
BL
BL
BK
GN/YL
COMP
4 WAY
FUSE
250V10A
ROOM.
THERMISTOR
PIPE
THERMISTOR
FLOAT S/W
REMOTE
CONTROL
ZONE
CONTROL
OPTIONAL
EXTRA
EXTRA
TERMINAL
BLOCK
TO OUTDOOR UNIT
3854A20031X
3(L)
4(N)
5
6
7
OUTDOOR WIRING DIAGRAM
INDOOR WIRING DIAGRAM
7
8
1
TM
220-240V
1Ø, 50Hz
POWER SUPPLY
BK
63H2
52C
L1
L2
T1
T2
A2
A1
BK
WH
BK
52F1
1
2
3
4
5
6
TNS
NO
C TH
NC
D.P
WH
BK
WH
BK
WH
BL
RD
GN/YL
BL
BK
YL
WH
T/B1
F1
BK
WH
WH
WH
WH
Co
OR
YL
Co
OR
FMo
1
49FMo
3854A20025G
FMo
2
49FMo
20SV
YL
BK
BK
BR
BK
BL
BK
WH
BK
BK
BK
BK
GN/YL
Tmo
T
o
the indoor unit
WH
GN/YL
2
3
L
N
1
2
3
4
5
5
6
CH1
BK
WH
RD
R
C
S
CM
Cr
PTCR
INDOOR
MOTOR
DRAIN
PUMP
BR
BR
BL
RD
BK
GN/YL
YL
OR
RD
BL
BL
BL
BK
GN/YL
COMP
4 WAY
FUSE
250V10A
ROOM.
THERMISTOR
PIPE
THERMISTOR
FLOAT S/W
REMOTE
CONTROL
ZONE
CONTROL
OPTIONAL
EXTRA
EXTRA
TERMINAL
BLOCK
TO OUTDOOR UNIT
3854A20031X
3(L)
4(N)
5
6
7
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