LG LS-K1860YL Service Manual ▷ View online
Pipe size(Diameter:Ø)
MAX.
Max
MODEL
Piping length
Elevation
Gas(inch)
Liquid(inch)
(m)
(m)
Refrigeration Cycle Diagram
-9-
INDOOR UNIT
OUTDOOR UNIT
HEAT
EXCHANGE
(EVAPORATOR)
EXCHANGE
(EVAPORATOR)
HEAT
EXCHANGE
(CONDENSER)
EXCHANGE
(CONDENSER)
COMPRESSOR
ACCUMU
LATOR
LATOR
GAS SIDE
3-WAY VALVE
LIQUID SIDE
2-WAY VALVE
CAPILLARY TUBE
COOLING
HEATING
REVERSING
VALVE
(Heating Model Only)
VALVE
(Heating Model Only)
7k, 9k Btu SERIES
3/8"
1/4"
15
7
12k Btu SERIES
1/2"
1/4"
15
7
18k Btu SERIES
1/2"
1/4"
30
15
Wiring Diagram
-10-
SW01F
CN-TH1
FUSE 2A,250V
P/NO:3854A90014E
RY-POWER
BK
SW01F
CN-TH1
FUSE 2A,
T250V
P/NO:3854A20080P
RY-POWER
BK
RD
BK BK
LIMIT
S/W
S/W
CN-L/R
STEP
MOTOR
H.V.B
A/CL
OPTION
BK
BK
BK
BK
CN-MO
T
O
R
CN-OUT
CN-D
A
T
A
SW01F
CN-TH1
FUSE 2A,250V
P/NO:3854A20080A
RY-POWER
BK
CN-DISP1
DISPLAY PCB ASM
BR
BR
BL
BL
RD
RD
GN/YL
GN/YL
TERMINAL
BLOCK
1
(
L
)
2
(
N
)
3
(1) Indoor Unit
LS-_NL Series (7, 9, 12K Btu)
LS-_NM/NN Series (7, 9, 12K Btu)
LS-_NL/NM/NN Series (18K Btu)
-11-
CN-COMP
CN-POWER
CN-IPM
CN-OLP
CN-TH1
TERMINAL
BLOCK
CN-4WAY1
RY-
LOW
LOW
RY-
HIGH
HIGH
RY-
4WAY
4WAY
RY-
HEAT
HEAT
CN-HEAT
BR
BL
BR
BL
GN/YL
RD
BR
BR
BK
BK
SPECIAL FUSE
(15A,250V)
BL
GN/YL
RD
BR
GN/YL
OR YL BL BK
F/M
CN-AC
NOISE
FILTER
FILTER
1(L)
2(N)
3
TO
INDOOR
UNIT
MAIN PWB ASM
OUTDOOR WIRING DIAGRAM
P/NO : 3854A20080B
(3854A90014G)
SUB PWB
CAPACITOR
CN-DC
CN-DC
CN-UVW
RD
YL
YL
YL
BL
BR
CN-AC
IGB T
C/COIL
COMP
GN/YL
RD BL YL
CN-COMP
CN-UVW
U V W
CN-PWR1
CN-PWR1
CN-DATA
CN-AC1
CN-AC2
CN-IPM
CN-TH2
CN-TH1
CN-4WAY
RY-
LOW
LOW
WCN3 WCN1 WCN2
RY-
HIGH
HIGH
RY-
4WAY
4WAY
CN-SUB1
CN-SUB2
3854A20080T
SUB PWB
FILTER PWB ASM
MAIN PWB ASM
F/M
OUTDOOR WIRING DIAGRAM
CN-DC
CN-SUB
C/COIL
1(L)
2(N)
3
INDOOR
UNIT
UNIT
SPECIAL FUSE
AC250V/20A
COMP
RD
BR
BR
TERMINAL
BLOCK
BL
GN/YL
RD
BR
BL
GN/YL
RD
BL
BL YL
BK
RD
BR
BL
BR
BL
BR
BL
BR OR YL BL BK
(2) Outdoor Unit
LS-_NL/NM/NN Series (7, 9, 12K Btu)
(2) Outdoor Unit
LS-_NL/NM/NN Series (18K Btu)
Operation Details
1. LED display of indoor unit
■
LS-_NL Series
■
LS-_NM/NN Series
-12-
A.I operation mode
Operation
Indicator
Shape of
display
Cooling
heating
dehumidifi-
cation
Setting
temp.
Standard
Too hot
Hot
Comfor-
table
Cold
Too cold
Jet cool
Operation Indicator
Sleep Timer Indicator
Timer Indicator
Defrost Indicator
Setting Temp.
• On while in appliance operation, off while in appliance pause.
• Blinking(3sec off/0.5sec on) according to Error Code as long as the system mal-
• Blinking(3sec off/0.5sec on) according to Error Code as long as the system mal-
functions.
• On while in sleep timer mode, off when sleep timer cancel or appliance operation
pause.
• On while in timer mode(on/off), off when timer mode is completed or canceled.
• Off except when hot start during heating mode operation or while in defrost control.
• Cooling/heating/dehumidification mode : setting temperature from remote control
• Fuzzy operation mode : fuzzy key data(5sec on)
• Fuzzy operation mode : fuzzy key data(5sec on)
➔
AI
Operation Indicator
Sleep Timer Indicator
Timer Indicator
Defrost 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)
• Flashing while in disconnection or short in Thermistor. (3 sec off/0.5 sec on)
• On while in sleep timer mode, off when sleep timer cancel or appliance operation
pause.
• On while in timer mode(on/off), off when timer mode is completed or canceled.
• Off except when hot start during heating mode operation or while in defrost control.
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