LG LM-1860HL Service Manual ▷ View online
- 29 -
2) Connection of the cable
1. Remove the cover control from the unit by loos-
ening the screw.
Connect the wires to the terminals on the control
board individually as the following.
Connect the wires to the terminals on the control
board individually as the following.
1) Cooling only type
2) Cooling & Heating type
3. Connecting Pipings and the cable to Outdoor unit
A
B
1) Connecting the pipings to the Outdoor
unit
1. Align the center of the pipings and sufficiently
tighten the flare nut with fingers.
2. Finally, tighten the flare nut with torque
wrench until the wrench clicks.
• When tightening the flare nut with torque wrench,
• When tightening the flare nut with torque wrench,
ensure the direction for tightening follows the
arrow on the wrench.
arrow on the wrench.
Outdoor unit
Outdoor unit
Gas side piping
A-UNIT
B-UNIT
Liquid side piping
Torque wrench
Terminal block
Connecting cable
Holder for
connecting
cable
connecting
cable
Cover control
Over 5mm
2. Secure the cable onto the control board with the hold-
er (clamper).
3. Refix the cover control to the original position with
the screw.
4. Use a recognized circuit breaker 16A between the
power source and the unit. A disconnection device to
adequately disconnect all supply lines must be fitted.
adequately disconnect all supply lines must be fitted.
Pipe Size
Torque
Liquid Side (1/4")
1.8kg
¡⁄
m
Gas Side (3/8")
4.2kg
¡⁄
m
ø8.5mm
The power cord connected to the outdoor unit should
be complied with the following specifications (Rubber
insulation, type H05RN-F approved by TUV or VED)
be complied with the following specifications (Rubber
insulation, type H05RN-F approved by TUV or VED)
NOMINAL CROSS-
SECTIONAL AREA
2.0mm
SECTIONAL AREA
2.0mm
2
ø8.5mm
The power cord connected to the outdoor unit should
be complied with the following specifications (Rubber
insulation, type H05RN-F approved by TUV or VED)
be complied with the following specifications (Rubber
insulation, type H05RN-F approved by TUV or VED)
NOMINAL CROSS-
SECTIONAL AREA
1.5mm
SECTIONAL AREA
1.5mm
2
Terminals on the OUTDOOR UNIT
Terminals on the INDOOR UNIT
4
3
POWER CORD
2(N)
1(L)
2(N)
1(L)
4
3
2(N)
3
1(L)
2(N)
1(L)
4
3
2(N)
1(L)
A-UNIT
Terminals on the INDOOR UNIT
B-UNIT
Terminals on the OUTDOOR UNIT
Terminals on the INDOOR UNIT
Terminals on the INDOOR UNIT
5
5
4
3
4
3
5
4
3
2(N)
2(N)
1(L)
1(L)
POWER CORD
2(N)
1(L)
5
4
3
2(N)
1(L)
R. V/ V
R. V/ V
FAN
FAN
COMP.
COMP.
A-UNIT
B-UNIT
(Cooling Only Model)
(Cooling & Heating Model)
(1) Name and Function-Remote Controller (Cooling Models)
⁄A
Operation Display
Displays the operation conditions.
⁄B
Start/Stop Button
Operation start when this button is pressed, and
stops when the button is pressed again.
stops when the button is pressed again.
⁄C
Operation Mode Selection Button
Used to select the type of operation mode.
• Cooling Operation Mode.
• Soft Dry Operation Mode.
• Auto Operation Mode.
• Cooling Operation Mode.
• Soft Dry Operation Mode.
• Auto Operation Mode.
⁄D
Sleep Mode Auto Button
For Sleep Mode Auto Operation.
⁄E
ON Timer Button
Used to set the time of starting operation.
⁄F
Timer Set Button
Press to set the timer operation.
⁄G
Timer CANCEL Button
Press to cancel the timer operation.
⁄H
Indoor Fan Speed Selector
⁄I
OFF Timer Button
Used to set the time of stopping operation.
⁄J
Time Setting Button
⁄K
Room Temperature Setting Button
Used to adjust the temperature.
⁄L
Room Temperature
⁄M
Airflow Direction Control Button
Press to set the desired airflow direction.
⁄N
Reset Button
⁄O
Fan Operation Button
Used to operation the indoor fan only.
- 36 -
Operation
Remote Controller
1
2
6
7
10
11
13
14
12
9
3
4
5
8
TIME
TIME
ON
OFF
a.m.
p.m.
p.m.
a.m.
p.m.
p.m.
Hr.
ON
OFF
SET
CANCEL
RESET
ROOM AIR CONDITIONER
REMOTE CONTROL
15
CHAOS
°
C
L
H
Signal trasmitter
Transmits the signals
to the room air conditioner.
to the room air conditioner.
(2) Name and Function-Remote Controller (Heat pump Models)
⁄A
Operation Display
Displays the operation conditions.
⁄B
Start/Stop Button
Operation start when this button is pressed, and stops
when the button is pressed again.
when the button is pressed again.
⁄C
Operation Mode Selection Button
Used to select the type of operation mode.
• Cooling Operation Mode.
• Soft Dry Operation Mode.
• Heating Operation Mode.
• Auto Operation Mode.
• Cooling Operation Mode.
• Soft Dry Operation Mode.
• Heating Operation Mode.
• Auto Operation Mode.
⁄D
Sleep Mode Auto Button
For Sleep Mode Auto Operation.
⁄E
ON Timer Button
Used to set the time of starting operation.
⁄F
Timer Set button
Press to set the timer operation.
⁄G
Timer CANCEL Button
Press to cancel the timer operation.
⁄H
Indoor Fan Speed Selector
⁄I
OFF Timer Button
Used to set the time of stopping operation.
⁄J
Time Setting Button
⁄K
Room Temperature Setting Button
Used to adjust the temperature.
⁄L
Room Temperature
⁄M
Airflow Direction Control Button
Press to set the desired airflow direction.
⁄N
Reset Button
- 37 -
1
2
6
7
10
11
13
14
12
9
3
4
5
8
TIME
TIME
ON
OFF
a.m.
p.m.
p.m.
a.m.
p.m.
p.m.
Hr.
ON
OFF
SET
CANCEL
RESET
ROOM AIR CONDITIONER
REMOTE CONTROL
CHAOS
°
C
L
H
Remote Controller
Signal trasmitter
Transmits the signals
to the room air conditioner.
to the room air conditioner.
Warning :
Disconnect the unit from power supply before mak-
ing any checks.
ing any checks.
Be sure the power switch is set to "OFF".
To remove the Grille from the Chassis.
• Set the up-and-down air discharge louver to open
position(horizontally) by finger pressure.
• Open the screw caps upward and remove the
securing screws.
• To remove the Grille, pull the lower left and right
side of the grille toward you (slightly tilted) and lift
it straight upward.
it straight upward.
1. To remove the sensor, housing connect, earth
conductor & step motor conductor with sensor
holder, Motor, Evaporator & P.C.B.
holder, Motor, Evaporator & P.C.B.
- 38 -
Disassembly of the parts (Indoor unit)
Up-and-down air direction louver
Screw
Screw cap
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