LG LT-E1820CL / LT-E1820HL / LT-E1860CL / LT-E1860HL / LT-E1862HL / LT-E2460CL / LT-E2460HL / LT-E2462HL Service Manual ▷ View online
–10–
• COOLING ONLY
• Rated performance for refrigerant line length of: 7.5m
• If 18K Capacity is installed at a distance of 15m, 187.5g of refrigerant
• If 18K Capacity is installed at a distance of 15m, 187.5g of refrigerant
should be added ....................................................(15-7.5)x25g
INDOOR UNIT
H/EX
Liquid Side
Liquid Side
Liquid Side
COMPRESSOR
ACCUM.
H/EX
Gas Side
Gas Side
Gas Side
CAPI C1
CAPI A
CAPI B
CAPI C2
OUTDOOR UNIT
Capacity
18K
1/4"
3/8"
7.5
50
24K
1/4"
3/8"
7.5
50
GAS
LIQUID
5
30
25
5
30
30
Elevation (m)
Length (m)
* Additional
refrigerant
(g/m)
Pipe Size
Rated
Rated
Max.
Max.
Wiring Diagram
• HEAT PUMP
Model No.: LT-E1860HL/ LT-E1862HL/ LT-E2460HL/ LT-E2462HL
LT-E2460HL(Australia only)
–11–
OUTDOOR WIRING DIAGRAM
INDOOR WIRING DIAGRAM
COMP
R
S
H
4
2
8
6
1
0
C
F
BL
YL
OR
BK
TB2
BR
BR
BR
BR
BL
BL
BL
BL
BL
GN/YL
GN/YL
BK
BK
RD
CAPACITOR
REVERSING
VALVE
RD
C
POWER
RELAY
RELAY
FAN
MOTOR
FUSE 5A
FUSE 5A
POWER
INPUT
TO INDOOR UNIT
TERMINAL
BLOCK
1
(
L
)
2
(
N
)
3
(
L
)
4
(
N
)
5
6
7
8
INDOOR
MOTOR
DRAIN
PUMP
STEP
MOTOR
TEMP
.
THERMIST
O
R
PIPE
THERMISTOR
REMOTE
CONTROL
FLOAT S/W
CN - DISP
DISPLAY PCB
Only for LT-Exxx2HL
AIR
CLEANER
H.V
. ASSY
DOOR S/W
TERMINAL
BLOCK
T
O
OUTDOOR UNIT
BR
YL
BK
OR
BL
BL
BR
GN/YL
RD
BK
YL
BL
GN
/YL
OUT F
A
N
COMP
4
W
A
Y
RD
BK
WH
RD
BK
BK
3
(
L
)
4
(
N
)
5 6 7
FUSE T3.15A
OUTDOOR WIRING DIAGRAM
COMP
R
S
H
4
2
8
6
1
0
C
F
BL
YL
YL
WH
YL
OR
BK
TB2
BR
BR
BR
BR
BL
BL
BL
BL
BL
BL
GN/YL
GN/YL
BK
BK
RD
CAPACITOR
S/CAPACITOR
REVERSING
VALVE
RD
C
POWER
RELAY
RELAY
FAN
MOTOR
FUSE 5A
FUSE 5A
POWER
INPUT
TO INDOOR UNIT
TERMINAL
BLOCK
3854A20119A
1
(
L
)
2
(
N
)
3
(
L
)
4
(
N
)
5
6
7
8
3
RY-
COMP
COMP
RY-
S/CAPA
S/CAPA
CN-POWER
4
3
4
4
–11-1–
• COOLING ONLY
Model No.: LT-E1860CL
Model No.: LT-E2460CL
OUTDOOR WIRING DIAGRAM
INDOOR WIRING DIAGRAM
INDOOR
MOTOR
DRAIN
PUMP
STEP
MOTOR
TEMP
.
THERMIST
O
R
PIPE
THERMISTOR
REMOTE
CONTROL
FLOAT S/W
CN - DISP
DISPLAY PCB
TERMINAL
BLOCK
T
O
OUTDOOR UNIT
BR
YL
BK
OR
BL
BL
BR
GN/YL
RD
BL
GN
/YL
COMP
3
(
L
)
4
(
N
)
5 6 7
FUSE T3.15A
COMP
R
S
H
4
2
8
6
1
0
C
F
BL
YL
OR
BK
TB2
BR
BR
BR
BR
BL
BL
BL
BL
BL
GN/YL
GN/YL
BK
RD
CAPACITOR
RD
C
POWER
RELAY
RELAY
FAN
MOTOR
FUSE 5A
FUSE 5A
POWER
INPUT
TO INDOOR UNIT
TERMINAL
BLOCK
1
(
L
)
2
(
N
)
3
(
L
)
4
(
N
)
5
6
7
8
OUTDOOR WIRING DIAGRAM
INDOOR WIRING DIAGRAM
INDOOR
MOTOR
DRAIN
PUMP
STEP
MOTOR
TEMP
.
THERMIST
OR
PIPE
THERMISTOR
REMOTE
CONTROL
FLOAT S/W
CN - DISP
DISPLAY PCB
LT-E
***
2HL ONLY
AIR
CLEANER
H.V
. ASSY
DOOR S/W
TERMINAL
BLOCK
T
O
OUTDOOR UNIT
BR
YL
BK
OR
BL
BL
BR
GN/YL
RD
YL
BL
GN
/YL
COMP
RD
BK
WH
RD
BK
BK
3(L) 4(N)
5 6 7
FUSE T3.15A
OUT F
A
N
COMP
R
S
H
4
2
8
6
1
0
C
F
BL
YL
OR
BK
TB2
BR
BR
BR
BR
BL
BL
BL
BL
BL
GN/YL
GN/YL
BK
RD
CAPACITOR
RD
C
POWER
RELAY
RELAY
FAN
MOTOR
FUSE 5A
FUSE 5A
POWER
INPUT
TO INDOOR UNIT
TERMINAL
BLOCK
1
(
L
)
2
(
N
)
3
(
L
)
4
(
N
)
5
6
7
8
–12–
Operation Details
(1) The function of main control
1. Time Delay Safety Control
• 3min
The compressor is ceased for 3minutes to balance the pressure in the refrigeration cycle.
(Protection of compressor)
• 5sec
Vertical air flow direction control louvers open in 5 seconds to prevent noise between louvers and wind.
• 30sec
The 4-way valve is ceased for 30sec. to prevent the refrigerant-gas abnormal noise when the Heating
operation is OFF or switched to the other operation mode while compress is off.
While compressor is running, it takes 3~5 seconds to switch.
2. Auto Swing Control
• This function is to swing the louver up and down automatically.
3. Air-Filter Checking Control
• 'Filter' will display in the remote controller display and main body display when an air-filter is polluted. Then clean
the air-filter for reference to Owners Manual.
4. Soft-Dry Operation
• The indoor fan speed is automatically set to the low, so the shift of the indoor fan speed is impossible because of
already being set to the best speed for Dry Operation by Micom Control.
5. Cooling Mode Operation
• When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the remote con-
troller and the operation diagram is as following
Intake Air temp.
SET TEMP.+0.5°C
(COMP. ON)
SET TEMP. -0.5°C
(COMP. OFF)
More than
More than
3 minutes
3 minutes
Selecting
Selecting
Selecting
fan speed
fan speed
fan speed
COMPRESSOR
ON
OFF
ON OFF
ON
INDOOR FAN
Low Low
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