LG LB-F4260HL / LB-F4260CL Service Manual ▷ View online
Refrigeration Cycle Diagram
■
LB-F4260HL
(
■
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-F4260HL
3/4"
3/8"
5
30
5
30
INDOOR UNIT
OUTDOOR UNIT
HEAT
EXCHANGER
EXCHANGER
HEAT
EXCHANGER
EXCHANGER
COMPRESSOR
GAS SIDE
LIQUID SIDE
COOLING
HEATING
REVERSING
VALVE
VALVE
CHECK VALVE
CAPILLARY TUBE
–7–
–8–
■
LB-F4260CL
(
■
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-F4260CL
3/4"
3/8"
5
30
5
30
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-F4260HL
(1) Indoor Unit
(2) Outdoor Unit
–9–
2
6
4
COi
GN/YL
FMi
TRANS
WH
BL
BK
GN/YL
GN/YL
RD
OR
CN-TRANS2
PWB ASM
CN-POWER
CN-TRANS1
Hi Med Low
CN-MOTOR
R
Y
-F
AN
R
Y
-4W
A
Y
R
Y
-COMP
CN-OUT
1
3
6
DC-12V
SIGNAL
GND
CN-REMO
INDOOR ELECTRIC CIRCUIT
INDOOR UNIT
OUTDOOR UNIT
( RD
)
( YL
)
( BR
)
P/NO : 3854A20025M
4
5
3
2
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
CM
220-240V
1ø,50Hz
POWER SUPPLY
L
N
1
2
3
4
5
6
31
32
B
A
WH
BR
BR
RD
BK
YL
FMo
1
49FMo
FMo
2
49FMo
Co
TM
52C
63H2
Co
BK YL
BK
OR
OR
RD
BK
BK
RD
Cr
CH
S
R
C
WH
WH
WH
BK
BK
BK
WH
WH
WH
RD
RD
52F1
BL
WH
PTCR
GN/YL
1
2
3
4
5
6
7
8
F1
T/B1
T/B2
BK
BK
BR
BK
BR
OR
BK
D.P
TNS
NO
NC
C TH
WH
WH
20SV
RD
YL
BL
BK
CM
1
2
3
4
5
6
2
3
4
5
6
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
63H2
C TH
49FMo
20SV
CM
HIGH PRESSURE SWITCH FOR HEATING
THERMISTOR FOR PIPE TEMP.
INTERNAL T.P FOR FMo
REVERSING COIL
COMPRESSOR
52C
TM
52F1
DP
TMo
MAGNECTIC CONTACTOR
MAIN TERMINAL BLOCK
RELAY FOR FMO
DEICER PCB
TERMINAL BLOCK
Co
FMo
F1
CH
Cr
RUN CAPACITOR FOR FMo
OUTDOOR FAN MOTOR
FUSE (250V, 10A)
CRANKCASE HEATER
RUN CAPACITOR FOR CM
P/NO : 3854AP2778F
Outdoor Unit Wiring Diagram
220-240V
1ø,50Hz
POWER SUPPLY
L
N
1
2
3
4
5
6
31
32
B
A
WH
BR
BR
RD
BK
YL YL
YL
FMo
1
49FMo
FMo
2
49FMo
Co
TM
52C
63H2
Co
BK YL
BK
OR
OR
RD
BK
BK
RD
Cr
CH
S
R
C
WH
WH
WH
BK
BK
BK
WH
WH
WH
BL
YL
BK
RD
RD
To the indoor unit
52F1
BL
WH
PTCR
GN/YL
GN/YL
Tmo
1
2
3
4
5
6
7
8
F1
T/B1
T/B2
BK
BK
BK
BR
BK
BR
OR
BK
D.P
TNS
NO
NC
C TH
WH
WH
BK
WH
BL
RD
GN/YL
20SV
■
Model: LB-F4260CL
(1) Indoor Unit
(2) Outdoor Unit
–10–
2
6
COi
GN/YL
FMi
TRANS
WH
BL
BK
GN/YL
GN/YL
OR
CN-TRANS2
PWB ASM
CN-POWER
CN-TRANS1
Hi Med Low
CN-MOTOR
R
Y
-F
AN
R
Y
-4W
A
Y
R
Y
-COMP
CN-OUT
1
3
6
DC-12V
SIGNAL
GND
CN-REMO
INDOOR ELECTRIC CIRCUIT
INDOOR UNIT
OUTDOOR UNIT
( RD
)
( YL
)
( BR
)
P/NO : 3854A20025N
3
2
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
CM
220-240V
1ø,50Hz
POWER SUPPLY
L
N
1
2
3
4
5
6
31
32
B
A
WH
BR
BR
YL
FMo
1
49FMo
FMo
2
49FMo
Co
TM
52C
Co
BK YL
BK
OR
OR
BK
Cr
S
R
C
WH
WH
WH
BL
WH
WH
PTCR
GN/YL
BK
F1
BK
BK
WH
BK
RD
BK
OR
BR
1
2
3
4
5
6
2
3
4
5
6
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
52C
TM
49FMo
TMo
CM
MAGNECTIC CONTACTOR
MAIN TERMINAL BLOCK
INTERNAL T.P FOR FMo
TERMINAL BLOCK
COMPRESSOR
Co
FMo
F1
CH
Cr
RUN CAPACITOR FOR FMo
OUTDOOR FAN MOTOR
FUSE (250V, 10A)
CRANKCASE HEATER
RUN CAPACITOR FOR CM
P/NO : 3854AP2778G
Outdoor Unit Wiring Diagram
To the indoor unit
Tmo
BK
WH
BL
GN/YL
GN/YL
CM
220-240V
1ø,50Hz
POWER SUPPLY
L
N
1
2
3
4
5
6
31
32
B
A
WH
BR
BR
YL
FMo
1
49FMo
FMo
2
49FMo
Co
TM
52C
Co
BK YL
BK
OR
OR
BK
Cr
S
R
C
WH
WH
BK
BK
BL
WH
WH
WH
PTCR
GN/YL
F1
BK
BK
WH
BK
RD
BK
OR
BR
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