LG LM-1962C2N_M_D Service Manual ▷ View online
1(L)
3
2(N)
TO OUTDOOR UNIT
STEP
MOTOR
MOTOR
MAIN PCB ASM
INDOOR WIRING DIAGRAM
3854AP3911A
PILLAR
TERMINAL
TERMINAL
BR
BL
BR
YL
BL
RD
TRANS-
FORMER
FORMER
OPTION
OPERATION
SWITCH
SWITCH
THERMISTOR
SH-CAPA
YL
1
3
2
1
3
CN-UP/DOWN
CN-TH
CN-POWER
CN-FAN
FUSE T3.15A
CN-TRANS
CN-CISP
GN/YL
GN/YL
DISPLAY PCB ASM
SSR
- 17 -
Wiring Diagram ( Cooling & Heating)
2-1. Indoor Unit
2-2. Outdoor Unit
OUTDOOR WIRING DIAGRAM
3854AP3911C
1(L)
1(L)
2(N)
1(L) 2(N)
2(N)
3
3
TERMINAL
BLOCK
BK
BL
C
S
R
R BR
YL
C
S
RD
BR
CN-TRANS
TRANS-
FORMER
FORMER
CN-COM
CN-TH1
CN-TH2
CN-POWER
BL
BL
BK
BK
BK
BK
BK
BK
H
C
F
YL
OR
BK
BK
BK
BK
RD
CAPA.
T/B1
T/B3
T/B2
BK
BK
YL
1
3
3
3
1
1
1
1
2
3
4
3
5
7
CN-SV
CN-YL
CN-FAN
CAPA.
A 4-WAY
B 4-WAY
CN-COMP
OPTION
RY9
RY3
RY2
RY1
OLP
OLP
RY10
THERMISTOR
THERMISTOR
FUSE T3.15A
BK
BK
BK
WH
WH
CN/YL
MAIN PCB ASSY
CN/YL
WH
MOTOR
"A"
COMP.
"B"
COMP.
TO INDOOR UNIT
A-UNIT
B-UNIT
MAIN
POWER
OUTDOOR WIRING DIAGRAM
1(L) 2(N)
1(L) 2(N)
1(L)
3
TERMINAL
BLOCK
CN-TRANS
TRANS-
FORMER
FORMER
H
C
F
MOTOR
B-UNIT
MAIN
POWER
BL
C
S
R
R
BR
YL
C
S
RD
BK
RD
3
3
1
1
CN-FAN
CAPA.
CN-COMP
RY3
RY2
RY1
OLP
OLP
MAIN PCB ASSY
"A"
COMP
"B"
COMP
3854AP3911B
B/P3 S.V
B-S.V
A 4-WAY
B 4-WAY
BL
BL
BL
BL
BK
BK
BL
BL
BL
BL
BK
BK
A-UNIT
C-UNIT
TO INDOOR UNIT
3 2(N)
3
BK
BK
WH
BK
WH
GN-YL
RD
WH
BK
BR
BL
CN-COM
1
3
5
7
CN-POWER
CR
YL
CAPA.
OPTION
BK
BK
T/B1
BK
BK
GN/YL
BK(Hi)
BK
T/B2
T/B3
BK
BK
OPTION
T/B4
BK
OPTION
RY4
RY5
RY6
RY7
RY8
RY9
RY10
2
1
4
3
2
1
BR
BK
WH RD
BL
YL
CN-BYPASS
CN-SV
CN-TH1
CN-TH2
THERMISTOR
THERMISTOR
FUSE T3.15A
OPTION
B/P2 S.V
B/P1 S.V
C-S.V
1
3
(LM-1962H2N/M/D, LM-2162H2N/M/D)
(LM-2062H3N/M/D, LM-3062H3N/M/D)
1. Time Delay Safety Control
• 3min... The compressor is ceased for 3 minutes to balance the pressure in the refrigeration cycle.
(Protection of compressor)
• 5sec... The indoor fan is delayed for 5 seconds, when operating initially, to prevent noises occured by the
vertical louver and wind.
• 30sec... The 4-way valve is ceased for 30 sec. to prevent the refrigerant-gas abnormal noise when the
Heating operation is OFF or switched to the other operation mode.
2. Airflow Direction Control
• This function is to swing the louver up and down automatically and to set it at the desired position.
• The procedure is as the following.
1st ; Press the ON/OFF Button to operate the product.
2nd ; Press the Airflow Direction Control Button to swing the louver up and down automatically.
3rd ; Repress the Airflow Direction Control Button to set the louver as the desired position.
3. Cooling Mode Operation
• When selecting the Cooling(
) Mode Operation, the unit will operate according to the setting by the
remote controller and the operation diagram is as following.
4. Cooling or Heating Mode with Sleep Mode Auto Operation
• When selecting the Cooling(
) or the Heating(
) combined with the Sleep Mode Auto Operation(
),
the operation diagram is as following.
- 18 -
Operation Details
Operating Mode
Louver Position
Start
2
Auto. Swing
1~4
Start
5
Auto. Swing
3~6
Cooling
Heating
0
1
2
3
4
5
6
7
137°
8°
8 (Close)
Cooling
Cooling
Heating
Horizontal
Approx.32°
Approx.32°
Heating
Intake Air temp.
COMP. ON
(SET TEMP. +0.5°C)
(SET TEMP. +0.5°C)
COMP. OFF
(SET TEMP. -0.5°C)
(SET TEMP. -0.5°C)
Selecting
fan speed
fan speed
Selecting
fan speed
fan speed
More than
3 minutes
More than
3 minutes
Selecting
fan speed
fan speed
COMPRESSOR
ON
OFF
ON
OFF
ON
INDOOR FAN
Low
Low
- 27 -
15. Forced Operation
• If you lose wireless remote controller, you can operate the unit with forced operation switch.
• The standard conditions are as following.
Operation Mode
Cooling
Cooling
Soft Dry
Heating
FAN Speed
High
High
Soft Dry Rule
High
Setting Temp.
22°C
22°C
Air Intake Temperature
24°C
Cooling Model
Heat pump Model
Room Temp
24°C
21°C
Room Temp 24°C
Room Temp 21°C
■
Cooling Mode with the Sleep Mode.
• The setting temperature will be raised by 1°C 30minutes later and by 2°C 1 hour later.
• The operation will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.
■
Heating Mode with the Sleep Mode.
• The operation will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.
- 19 -
Intake Air temp.
COMP. ON
(SET TEMP. +0.5°C)
(SET TEMP. +0.5°C)
COMP. OFF
(SET TEMP. -0.5°C)
(SET TEMP. -0.5°C)
30 minutes
30 minutes
More than
3 minutes
1°C
1°C
More than
3 minutes
COMPRESSOR
ON
OFF
ON
OFF
ON
INDOOR FAN
Low
Low
Low
Low
Low
Setting Temp. +3°C
(Compressor OFF)
(Compressor OFF)
Setting Temp.
(Compressor ON)
(Compressor ON)
COMPRESSOR
ON
OFF
ON
OFF
ON
OFF
INDOOR FAN
Med.
Low or Off
Med.
Low or Off
Med.
Low or Off
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