LG LV-C3681CL_HL / LV-D4881CL_HL / LV-D6081CL_HL Service Manual ▷ View online
–9–
Wiring Diagram
HEAT PUMP
Model: LV-C3681HL
Model: LV-C3681HL
COOLING ONLY
Model: LV-C3681CL
Model: LV-C3681CL
1
2
3
4
5
6
2
3
4
5
6
1
2
3
4
5
6
2
3
4
5
6
RV
7
8
9
8
9
10
FAN COIL UNIT CONDENSING UNIT
SWITCH BOX
ROOM
SENSOR
FREEZE
CONNECT
OR
LINE
COMP
SWING
OF
HIGH
BLACK WIRE
BLUE WIRE
RED WIRE
GROUND
WHITE WIRE
RUN CAP
BROWN WIRE
BLOWER
MOTOR
LOW
NEUTRAL
4WV
L-COMM
MED
TERMINAL BLOCK 30A
POWER SUPPLY
TERMINAL BLOCK 30A
RED WIRE
BLACK WIRE
WHITE WIRE
WHITE WIRE
BLACK WIRE
WHITE WIRE
RUN CAP
LOW
CONTACTOR COIL
REVERSING VALVE
FAST FUSE 10A 250V
GRAY WIRE
BLUE WIRE
BROWN WIRE
FAN
MOTOR
COMP
CONTACTOR
GRAY WIRE
E
N
L1 L2
L2
L1
L3
L3
WHITE WIRE
GRAY WIRE
BROWN WIRE
BLACK WIRE
RED WIRE
RED WIRE
BLUE WIRE
SWEEP
MOTOR
OUTDOOR SENSOR
–10–
HEAT PUMP
Model: LV-D4881HL
Model: LV-D4881HL
COOLING ONLY
Model: LV-D4881CL
Model: LV-D4881CL
1
2
3
4
5
6
2
3
4
5
6
1
2
3
4
5
6
2
3
4
5
6
RV
7
8
9
8
9
10
FAN COIL UNIT CONDENSING UNIT
SWITCH BOX
ROOM
SENSOR
FREEZE
CONNECT
OR
LINE
COMP
SWING
OF
HIGH
BLACK WIRE
BLUE WIRE
RED WIRE
GROUND
GROUND
WHITE WIRE
RUN CAP
BROWN WIRE
WHITE WIRE
RUN CAP
BROWN WIRE
BLOWER
MOTOR
BLOWER
MOTOR
LOW
NEUTRAL
4WV
L-COMM
MED
TERMINAL BLOCK 30A
POWER SUPPLY
TERMINAL BLOCK 30A
RED WIRE
BLACK WIRE
WHITE WIRE
WHITE WIRE
BLACK WIRE
WHITE WIRE
RUN CAP
LOW
CONTACTOR COIL
REVERSING VALVE
FAST FUSE 10A 250V
GRAY WIRE
BLUE WIRE
BROWN WIRE
FAN
MOTOR
COMP
CONTACTOR
GRAY WIRE
E
N
L1 L2
L2
L1
L3
L3
WHITE WIRE
GRAY WIRE
BROWN WIRE
BLACK WIRE
RED WIRE
RED WIRE
BLUE WIRE
SWEEP
MOTOR
OUTDOOR SENSOR
HEAT PUMP
Model: LV-D6081HL
Model: LV-D6081HL
COOLING ONLY
Model: LV-D6081CL
Model: LV-D6081CL
–11–
1
2
3
4
5
6
2
3
4
5
6
1
2
3
4
5
6
2
3
4
5
6
RV
7
8
9
8
9
10
FAN COIL UNIT CONDENSING UNIT
SWITCH BOX
ROOM
SENSOR
FREEZE
CONNECT
OR
LINE
COMP
SWING
OF
HIGH
BLACK WIRE
BLUE WIRE
RED WIRE
GROUND
GROUND
WHITE WIRE
RUN CAP
BROWN WIRE
WHITE WIRE
RUN CAP
BROWN WIRE
BLOWER
MOTOR
BLOWER
MOTOR
LOW
NEUTRAL
4WV
L-COMM
MED
TERMINAL BLOCK 30A
POWER SUPPLY
TERMINAL BLOCK 30A
RED WIRE
BLACK WIRE
WHITE WIRE
WHITE WIRE
BLACK WIRE
BLACK WIRE
WHITE WIRE
WHITE WIRE
RUN CAP
BROWN WIRE
WHITE WIRE
RUN CAP
LOW
CONTACTOR COIL
REVERSING VALVE
FAST FUSE 10A 250V
GRAY WIRE
BLUE WIRE
BROWN WIRE
FAN
MOTOR
FAN
MOTOR
COMP
CONTACTOR
GRAY WIRE
E
N
L1 L2
L2
L1
L3
L3
WHITE WIRE
GRAY WIRE
BROWN WIRE
BLACK WIRE
RED WIRE
RED WIRE
BLUE WIRE
SWEEP
MOTOR
OUTDOOR SENSOR
–12–
INSTALLATION START-UP AND SERVICE INSTRUCTIONS FAN COIL UNIT
Safety considerations
Installation and servicing of air conditioning equipment can be hazardous due to system pressure and electrical
components. Only trained and qualified personnel should service equipment. When working on air conditioning
equipment observe precautions in the literature and labels attached to the unit and other safety precautions that
may apply. Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloth for brazing opera-
tions. Have a fire extinguisher available for all brazing operations.
components. Only trained and qualified personnel should service equipment. When working on air conditioning
equipment observe precautions in the literature and labels attached to the unit and other safety precautions that
may apply. Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloth for brazing opera-
tions. Have a fire extinguisher available for all brazing operations.
Warning !
Before performing service or maintenance operations on the system, turn off the main power switches to the
indoor and outdoor unit. Electrical shock could cause personal injury.
indoor and outdoor unit. Electrical shock could cause personal injury.
Initial check
(1) The carton should not be removed from unit until reaching final location to avoid damage.
(2) Inspect unit for shipping damage and file a claim the transport agency if necessary.
(3) Check field electrical works:
(A) Proper size of fuses and wire, correct wiring connections and grounding as specified by the local electrical
codes.
(B) Also check supply voltage. Which must be within the limits shown on the nameplate.
(4) Check for a proper condensate flow.
(5) Be sure piping insulation is adequate.
(6) Confirm there are no obstructions to air flow for indoor and outdoor units. Also check for sufficient clearances
for servicing of the units.
Location & Mounting
(1) Unit should be installed for horizontal and vertical discharge application only.
(2) The unit comes equipped with two (2) bracket hangers for mounting the unit under ceiling, or on a wall as well
(2) The unit comes equipped with two (2) bracket hangers for mounting the unit under ceiling, or on a wall as well
as a packet containing a bracket for mounting the remote control unit.
(3) Prepare the mounting bolt (1) at the distance specified in fig.1
(4) Fasten the bracket-hanger (2&3) to the mounting bolt with washers and nuts.
(4) Fasten the bracket-hanger (2&3) to the mounting bolt with washers and nuts.
82.5
82.5
Dim (mm)
Model
A
B
C
36K Btu
1605
235
1440
48K, 60K Btu
1905
270
1740
Fig. 1
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