LG LT-B2860HL Service Manual ▷ View online
–44–
Possible Trouble 3
: Auto Air direction louver does not operate.
Possible Trouble 4
: Wired remote controller does not operate.
YES
NO
YES
Is IC01M operated
normally?
Is the PIN 10 of
CN-AC2 DC12V?
Check the step motor
and connector
(CN-AC2, AC1)
and connector
(CN-AC2, AC1)
Check the main P.C.B
DC12V pattern
DC12V pattern
NO
Exchange IC01M
NO
YES
YES
YES
Is the LCD operated
normally?
Is the terminal of wired
Remocon T2 DC12V
Is the pin 31, 32 of
Micom DC 5V
Change the wired Remocon.
Check the wired Remocon
PCB and DC 12V pattern.
PCB and DC 12V pattern.
NO
NO
Check the parts of
communication.
communication.
Connector CN-Remo, and
terminals of wired
Remocon exactly.
terminals of wired
Remocon exactly.
–45–
Possible Trouble 5
: Ineffective Heating
YES
YES
NO
YES
Is it Heating Mode?
Does the temperature
set all right?
Change IC01M.
NO
NO
Adjust operation mode.
Adjust set temperature
Is IC01M operated
normally?
YES
Check the connector
(CN-OUT, CN-AC1.2)
(CN-OUT, CN-AC1.2)
Check RY-4Way
NO
Is 4way-valve operated?
Product Specifications (Cooling & Heating)
1. 60Hz
Model Name
Item
Unit
Cooling Capacity
Btu/h(kcal/h)
Heating Capacity
Btu/h(kcal/h)
Moisture Removal
l/
h
Power Source
Ø, V, Hz
Indoor
Outdoor
Input
Cooling
Heating
Running Current
Cooling
Heating
E.E.R.
Btu/h-W
Indoor
Outdoor
Refrigerant (R-22)
g
Airflow Direction Control (Up & Down)
Remocon Type
Liquid
Gas
Drain Hose
Connecting Wire
Main Power Cable
Time Delay Safety Function
Air Circulation
Soft Dry
Fan Speed (Indoor)
Timer
Self-Diagnosis
Air Circulation
m
3
/min
Dimensions
(W
¡¿
H
¡¿
D)
mm
W
A
LT-
B2420CL
24,000(6,048)
–
3.5
17
50
2,700
–
12.5
–
8.89
2,000
24,000(6,048)
24,000(6,048)
3.5
17
50
2,700
2,400
12.5
10.5
8.89
1,870
28,000(7,056)
–
4.0
19
52
2,850
–
12.8
–
9.82
2,150
30,000(7,560)
–
4.3
19
52
2,850
–
12.8
–
10.53
2,150
30,000(7,560)
30,000(7,560)
4.3
19
52
2,850
2,750
12.8
12.3
10.53
2,400
28,000(7,056)
28,000(7,056)
4.0
19
52
2,850
2,750
12.8
12.3
9.82
2,400
LT-
B2420HL
LT-
B2820CL
LT-
B3020CL
LT-
B2820HL
LT-
B3020HL
–5–
Service Valve &
Connecting Tube
Connecting Tube
870 x 800 x 320
800 x 800 x 298(910 x 910 x 30)
1Ø, 220V, 60Hz
870 x 655 x 320
O
Wired Remocon, wireless Remocon(Option)
3/8"(9.52)
5/8"(15.88)
O
0.75mm
2
↑
2.5mm
2
↑
O
O
O
3(Hi, Med, Low)
24Hrs
O
–6–
Model Name
Item
Unit
Cooling Capacity
Btu/h(kcal/h)
Heating Capacity
Btu/h(kcal/h)
Moisture Removal
§⁄
/h
Power Source
§j
, V, Hz
Indoor
Outdoor
Input
Cooling
Heating
Running Current
Cooling
Heating
E.E.R.
Btu/h-W
Indoor
Outdoor
Refrigerant (R-22)
g
Airflow Direction Control (Up & Down)
Remocon Type
Liquid
Gas
Drain Hose
Connecting Wire
Main Power Cable
Time Delay Safety Function
Air Circulation
Soft Dry
Fan Speed (Indoor)
Timer
Air Circulation
m
3
/min
Dimensions
(W
¡¿
H
¡¿
D)
mm
W
A
LT-B2460CL
LT-B2460HL
LT-B2860CL
LT-B2860HL
24,000(6,048)
–
3.5
17
50
2,800
–
13.5
–
8.57
1,900
24,000(6,048)
24,000(6,048)
3.5
17
50
2,800
2,500
14
13
8.57
1,870
28,000(7,056)
–
4.0
19
52
2,850
–
13.4
–
9.82
2,100
28,000(7,056)
28,000(7,056)
4.0
19
52
2,850
2,850
13.4
12.6
9.82
2,400
Service Valve &
Connecting Tube
Connecting Tube
870 x 800 x 320
800 x 800 x 298(910 x 910 x 30)
1Ø, 220V~240V, 50Hz
870 x 655 x 320
O
Wired Remocon, wireless Remocon(Option)
3/8"(9.52)
5/8"(15.88)
O
0.75mm
2
↑
2.5mm
2
↑
O
O
O
3(Hi, Med, Low)
24Hrs
O
2. 50Hz
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