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Model
LS-T186ABL_ABG_CBG_CEL_EEL_CDL_ADL_ADG LS-T186AHG_FBG_CBL_AEL_NEG_AEM_ABM LS-T246ABL_CBG_CEL_EEL_QEG_SEG_CEM LS-T266CBG_FBG_ABL_CEL LS-T246LEL_LEM_ABM_AAL (SERV.MAN3)
Pages
71
Size
6.12 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner
File
ls-t186abl-abg-cbg-cel-eel-cdl-adl-adg-ls-t186ahg-.zip
Date

LG LS-T186ABL_ABG_CBG_CEL_EEL_CDL_ADL_ADG / LS-T186AHG_FBG_CBL_AEL_NEG_AEM_ABM / LS-T246ABL_CBG_CEL_EEL_QEG_SEG_CEM / LS-T266CBG_FBG_ABL_CEL / LS-T246LEL_LEM_ABM_AAL (SERV.MAN3) Service Manual ▷ View online

-9-
W
L7
L6
L8
L9
D
L1
L2
L3
L10
L11
L4
L5
H
Gas side
Liquid side
(2) Outdoor Unit
MODEL
DIM
W
mm
870
870
H
mm
655
880
D
mm
320
320
L1
mm
370
370
L2
mm
340
340
L3
mm
25
25
L4
mm
630
855
L5
mm
25
25
L6
mm
546
546
L7
mm
162
162
L8
mm
162
162
L9
mm
54
54
L10
mm
74.5
74.5
L11
mm
79
79
ALL MODELS
LS-T246QEG
Refrigeration Cycle Diagram
-10-
INDOOR UNIT
OUTDOOR UNIT
INDOOR UNIT
OUTDOOR UNIT
HEAT
EXCHANGE
(EVAPORATOR)
HEAT
EXCHANGE
(EVAPORATOR)
HEAT
EXCHANGE
(CONDENSER)
HEAT
EXCHANGE
(CONDENSER)
COMPRESSOR
COMPRESSOR
ACCUMU
LATOR
GAS SIDE
GAS SIDE
VALVE
LIQUID SIDE
LIQUID SIDE
VALVE
CAPILLARY TUBE
CAPILLARY TUBE
CHECK VALVE
(Heating Model only)
COOLING
HEATING
REVERSING
VALVE
(Heating Model Only)
(1) Cooling Only Models
(2) Cooling & Heating Models
Wiring Diagram
-11-
PO
WER
BR
BR
BL
BK
RD
GN/YL
BL
1(L)
2(N)
34
MOTOR
CN-MOTOR
CN-TAB1
CN-A
C
/DC
CN-A
C
/DC
CN-TH
THERMISTOR
STEP
MOTOR
STEP
MOTOR
H.V.
ASM
RD AIR
CLEAN
(
PLASMA
)
SAFETY  S/W1
SAFETY  S/W2
BK
BK
BK
BK
BK
CN-U/D
CN-L/R
CN-DISP
DISPLAY PWB ASM
SUB PWB ASM
CN-TELE
CN-LCD
INDOOR WIRING DIAGRAM
RY-4WAY
RY-FAN
T/BLOCK
TO OUTDOOR UNIT
TRIAC
AC PWB ASM
DC PWB ASM
OR
BK
BR
4
RY-COMP
FUSE 
250V T2A
3
YL
SH-CAPA
GN/YL
BR
(
BK/Plained
)
GN/YL
BL
(
WH/Rib
b
ed
)
MOTOR
OR
RD
BK
BK
BK
BK
BK
BK
BK
BK
BK
PO
WER
BR(BK/Plained)
BL(WH/Rib
bed)
BK
YL
SH-CAPA
T/BOARD
T-BLOCK
CN-MOTOR
THERMISTOR
STEP
MOTOR
CN-A
CDC1
CN-A
CDC2
CN-TH
CN-U/D
CN-L/R
CN-HVB
CN-12V
CN-DISP
DISPLAY PWB ASM.
P/No : 3854A20238J
CN-CONT
TRIAC
AC PWB ASM.
DC PWB ASM.
CN-TAB
RY-COMP
TO OUTDOOR UNIT
INDOOR WIRING DIAGRAM
4
3
1(L)
BR
BR
BL
GN/YL
2(N)
FUSE
250V T2A
STEP
MOTOR
H.V.
ASM.
S/W1
S/W2
AIR
CLEAN
(PLASMA)
GN/YL
GN/YL
MOTOR
OR
RD
BK
BK
BK
BK
BK
BK
BK
BK
BK
PO
WER
GN/YL
GN/YL
BR(BK/Plained)
BL(WH/Rib
bed)
BK
YL
SH-CAPA
T/BOARD
T-BLOCK
RY-4WAY
RY-FAN
CN-MOTOR
THERMISTOR
STEP
MOTOR
CN-A
CDC1
CN-A
CDC2
CN-TH
CN-U/D
CN-L/R
CN-HVB
CN-12V
CN-DISP
DISPLAY PWB ASM.
P/No : 3854A20238H
CN-CONT
TRIAC
AC PWB ASM.
DC PWB ASM.
CN-TAB
RY-COMP
TO OUTDOOR UNIT
INDOOR WIRING DIAGRAM
4
3
1(L)
BR
BR
BL
BK
RD
GN/YL
2(N)
3
4
FUSE
250V T2A
STEP
MOTOR
H.V.
ASM.
S/W1
S/W2
AIR
CLEAN
(PLASMA)
(1) Indoor Unit 
COMP
C S R
FAN
MOTOR
BR
BR
BL
RD
BK
GN/YL
BR
BL
RD
BK
YL
BK(RD)
BK
(RD)
BR(OR)
GN/YL
REVERSING
YL
CAPACITOR
RD
TO  INDOOR  UNIT 
OUTDOOR  WIRING  DIAGRAM
TERMINAL
BLOCK
H
C
F
PTC
1(L) 2(N)
3
4
VALVE
T / B  2
T / B  1
OUTDOOR WIRING DIAGRAM (LS-T246QEG)
OUTDOOR WIRING DIAGRAM (3854A20167B)
RD
BR(OR)
OPTION
PTC
YL
BK
(BR)
C
R
S
COMP
.
BK
YL
FA
N
M
OTO
R
TP
HC
 F
T
O
 INDOOR UNIT
TERMINAL
BLOCK
BR
BL
GN/YL
GN/YL
GN/YL
T/B
CAP
A
C
IT
OR
1(L)
2(N)
(2) Outdoor Unit 
Cooling
Heatpump
Operation Details
1. MAIN UNIT FUNCTION
• DISPLAY
1) C/O Model
Operation Indicator
• ON while in appliance operation, OFF while in appliance pause.
• Flashing while in disconnection or short in Thermistor. (3 sec off / 0.5 sec on)
Sleep Timer Indicator
• ON while in sleep timer mode, OFF when sleep timer cancel or appliance operation pause.
Timer Indicator
• ON while in timer mode (on/off), OFF when timer mode is completed or canceled.
Comp. Running Incidator
• While in appliance operation, ON while in outdoor unit compressor running, OFF while in compressor off.
2) H/P Model
Operation Indicator
• ON while in appliance operation, OFF while in appliance pause.
• Flashing while in disconnection or short in Thermistor. (3 sec off / 0.5 sec on)
Sleep Timer Indicator
• ON while in sleep timer mode, OFF when sleep timer cancel or appliance operation pause.
Timer Indicator
• ON while in timer mode (on/off), OFF when timer mode is completed or canceled.
Defrost Indicator
• OFF except when hot start during heating mode operation or while in defrost control.
Cooling Mode Operation
• When the intake air temperature reaches 0.5°C below the setting temp, the compressor and the outdoor fan
stop.
• When it reaches 0.5°C above the setting temp, they start to operate again.
Compressor ON Temp
Setting Temp+0.5°C
Compressor OFF Temp
Setting Temp-0.5°C
• While in compressor running, operating with the airflow speed set by the remote control. While in compressor
not running, operating with the low airflow speed regardless of the setting.
Healthy Dehumidification Mode
• When the dehumidification operation input by the remote control is received, the intake air temperature is
detected and the setting temp is automatically set according to the intake air temperature.
26°C
Intake Air Temp
25°C
24°C
Intake Intake Air Temp<26°C
Intake Air Temp-1°C
18°C
Intake Intake Air Temp<24°C
Intake Air Temp-0.5°C
Intake Air Temp<18°C
18°C
-12-
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