LG LB-F3660HL / LB-F3660CL Service Manual ▷ View online
Refrigeration Cycle Diagram
■
LB-F3660HL
(
§
Rated performance for refrigerant line length of: 5m)
For installation over rated distance, 70g of refrigerant should be added for each meter.
ex) When installed at a distance of 15m, 700g of refrigerant should be added.
(15-5) x 70g = 700g
Pipe size(Diameter: ø)
Piping length(m)
Elevation(m)
MODEL
Gas
Liquid
Rated
Max.
Rated
Max.
LB-F3660HL
5/8"
3/8"
5
25
5
15
INDOOR UNIT
OUTDOOR UNIT
HEAT
EXCHANGER
EXCHANGER
HEAT
EXCHANGER
EXCHANGER
COMPRESSOR
GAS SIDE
LIQUID SIDE
COOLING
HEATING
REVERSING
VALVE
VALVE
CHECK VALVE
CAPILLARY TUBE
CAPILLARY TUBE
BY PATH CAPILLARY TUBE
–7–
–8–
■
LB-F3660CL
(
§
Rated performance for refrigerant line length of: 5m)
For installation over rated distance, 70g of refrigerant should be added for each meter.
ex) When installed at a distance of 15m, 700g of refrigerant should be added.
(15-5) x 70g = 700g
Pipe size(Diameter: ø)
Piping length(m)
Elevation(m)
MODEL
Gas
Liquid
Rated
Max.
Rated
Max.
LB-F3660CL
5/8"
3/8"
5
25
5
15
INDOOR UNIT
OUTDOOR UNIT
HEAT
EXCHANGER
(CONDENSER)
EXCHANGER
(CONDENSER)
HEAT
EXCHANGER
(CONDENSER)
EXCHANGER
(CONDENSER)
COMPRESSOR
GAS SIDE
LIQUID SIDE
CAPILLARY TUBE
Wiring Diagram
■
Model: LB-F3660HL
(1) Indoor Unit
(2) Outdoor Unit
–9–
2
6
4
COi
GN/YL
FMi
TRANS
WH
BL
BK
GN/YL
GN/YL
R
D
O
R
CN-TRANS2
PWB ASM
CN-POWER
CN-TRANS1
Hi Med Low
CN-MOTOR
R
Y
-F
A
N
R
Y
-4
W
A
Y
R
Y
-C
O
M
P
CN-OUT
1
3
6
D
C
-1
2
V
S
IG
N
A
L
G
N
D
CN-REMO
INDOOR ELECTRIC CIRCUIT
INDOOR UNIT
OUTDOOR UNIT
( R
D
)
( Y
L
)
( B
R
)
P/NO : 3854A20025F
4
5
3
2
7
8
1
TM
220-240V
1Ø, 50Hz
1Ø, 50Hz
POWER SUPPLY
BK
63H2
52C
L1
T1
L2
T2
A2
A1
BK
WH
BK
52F1
1
2
3
4
5
6
TNS
NO
C TH
NC
D.P
WH
BK
BL
BK
WH
T/B1
F1
BK
WH
WH
WH
BR
Co
OR
YL
Co
OR
FMo
1
49FMo
FMo
2
49FMo
YL
YL
BK
BK
BK
BL
WH
G
N
/Y
L
2
3
N
L
20SV
BK
BK
BK
BK
BK
BK
WH
WH
BK
1
NOTE
BL : BLUE
BK : BLACK
BR : BROWN
OR : ORANGE GN/YL : GREEN/YELLOW
BK : BLACK
BR : BROWN
OR : ORANGE GN/YL : GREEN/YELLOW
RD : RED
WH : WHITE
YL : YELLOW
WH : WHITE
YL : YELLOW
Re
CN-TH
EVA
TH
ROOM
TH
CH1
BK
WH
RD
R
C
S
CM
Cr
PTCR
7
8
1
TM
220-240V
1Ø, 50Hz
1Ø, 50Hz
POWER SUPPLY
BK
63H2
52C
Outdoor Unit Wiring Diagram
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
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
Cr
CM
Co
MAIN TERMINAL BLOCK
RELAY FOR FMo
RUN CAPACITOR FOR CM
COMPRESSOR
RUN CAPACITOR FOR FMo
FMo
F1
DP
CH1
OUTDOOR FAN MOTOR
FUSE (250V, 5A)
DEICER PCB
CRANK CASE HEATER FOR CM
P/NO : 3854A20025G
RD : RED
WH : WHITE
YL : YELLOW
WH : WHITE
YL : YELLOW
FMo
2
49FMo
20SV
YL
BK
BK
BR
BK
BL
BK
WH
BK
BK
BK
BK
WIRING OF FIELD
(CONNECTING WIRE)
(CONNECTING WIRE)
GN/YL
Tmo
T
o
th
e
in
d
o
o
r
u
n
it
WH
G
N
/Y
L
2
3
L
N
1
2
3
4
5
5
6
CH1
BK
WH
RD
R
C
S
CM
Cr
PTCR
■
Model: LB-F3660CL
(1) Indoor Unit
(2) Outdoor Unit
–10–
2
6
COi
GN/YL
FMi
TRANS
WH
BL
BK
GN/YL
GN/YL
O
R
CN-TRANS2
PWB ASM
CN-POWER
CN-TRANS1
Hi Med Low
CN-MOTOR
R
Y
-F
A
N
R
Y
-4
W
A
Y
R
Y
-C
O
M
P
CN-OUT
CN-TH
EVA
TH
ROOM
TH
1
3
6
D
C
-1
2
V
S
IG
N
A
L
G
N
D
Re
CN-REMO
INDOOR ELECTRIC CIRCUIT
INDOOR UNIT
OUTDOOR UNIT
( R
D
)
( Y
L
)
( B
R
)
P/NO : 3854A20025H
3
2
1
TM
220-240V
1Ø, 50Hz
1Ø, 50Hz
POWER SUPPLY
BK
52C
L1
T1
L2
T2
A2
A1
BK
WH
WH
WH
T/B
F1
BK
WH
WH
BK
WH
RD
R
C
S
BR
Co
OR
YL
Co
OR
FMo
1
FMo
2
CM
YL
BK
BK
BK
BL
BK
WH
G
N
/Y
L
2
3
N
L
WH
WH
1
NOTE
BL : BLUE
BK : BLACK
BR : BROWN
OR : ORANGE
BK : BLACK
BR : BROWN
OR : ORANGE
RD : RED
WH : WHITE
WH : WHITE
GN/YL : GREEN/YELLOW
CH1
Cr
PTCR
Outdoor Unit Wiring Diagram
NOTE
BL : BLUE
BK : BLACK
BR : BROWN
OR : ORANGE
BK : BLACK
BR : BROWN
OR : ORANGE
52C
TMo
Cr
CM
MAGNECTIC CONTACTOR
TERMINAL BLOCK
RUN CAPACITOR FOR CM
COMPRESSOR
TM
FMo
F1
MAIN TERMINAL BLOCK
OUTDOOR FAN MOTOR
FUSE(250V, 5A)
Co
CH1
RUN CAPACITOR FOR FMo
CRANK CASE HEATER FOR CM
P/NO : 3854A20025J
RD : RED
WH : WHITE
WH : WHITE
WIRING OF FIELD
(CONNECTING WIRE)
(CONNECTING WIRE)
GN/YL : GREEN/YELLOW
1
TM
220-240V
1Ø, 50Hz
1Ø, 50Hz
POWER SUPPLY
BK
52C
L1
L2
T1
T2
A2
A1
BK
WH
WH
BK
WH
BL
GN/YL
T/B
F1
BK
WH
WH
Co
OR
YL
Co
OR
FMo
1
FMo
2
YL
BK
BK
BR
BK
BL
BK
BK
WH
GN/YL
T
o
th
e
in
d
o
o
r
u
n
it
WH
G
N
/Y
L
2
3
L
N
TMo
1
2
3
4
5
6
CH1
BK
WH
RD
R
C
S
CM
Cr
PTCR
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