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Model
LT-D3680CL LT-D3680HL LT-D3682HL LT-D4820CL LT-D4820HL LT-D4822HL LT-D4880CL LT-D4880HL
Pages
55
Size
1.77 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner
File
lt-d3680hl.zip
Date
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–42–
Possible Trouble 4
: Auto Air direction louver does not operate.
Possible Trouble 5
: Wired remote controller does not operate.
YES
NO
Is IC01M operated
normally?
Check the motor and 
connector. 
(CN-LOUVER)
Exchange IC01M.
NO
YES
YES
YES
Is the LCD operated
normally?
Is the terminal of wired
Remocon T2 DC12V?
Is the pin 39, 40 of
Micom DC 5V?
Change the wired Remocon.
Check the wired Remocon 
PCB and DC 12V pattern.
NO
NO
Check the parts of 
communication.
Connector CN-Remo, and 
terminals of wired 
Remocon exactly.
Model
3, 380-415, 50 3, 380-415, 50
3, 380-415, 50
3, 380-415, 50
3, 380-415, 50
3, 380-415, 50
9,073(10,550)
9,073(10,550)
9,073(10,550)
12,096(14,065) 12,096(14,065) 12,096(14,065)
36,000
36,000
36,000
48,000 48,000  48,000 
-
9,073(10,550)
9,073(10,550)
-
12,096(14,065) 12,096(14,065)
-
36,000
36,000
- 48,000 
48,000 
4,000
4,000
4,000
4,900
4,900
4,900
-
3,500
3,500
-
4,400
4,400
7.5
7.5
7.5
8.5
8.5
8.5
-
6.5
6.5
-
8
8
50
50
50
55
55
55
-
48
48
-
55
55
2.27
2.27
2.27
2.3
2.3
2.3
-
3.0
3.0
-
2.93
2.93
25
25
25
30
30
30
58
58
58
58
58
58
4.0
4.0
4.0
5.3
5.3
5.3
O
O
O
O
O
O
X
O
O
X
O
O
4
4
4
4
4
4
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
4
4
4
4
4
4
O
O
O
O
O
O
X
O
O
X
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
Option
Option
Option
Option
Option
Option
O
O
O
O
O
O
X
X
O
X
X
O
2,900
2,900
2,900
4,300 4,250  4,250
840*840*288
840*840*288
840*840*288
840*840*288
840*840*288
840*840*288
950*950*30
950*950*30
950*950*30
950*950*30
950*950*30
950*950*30
790*965*320
790*965*320
790*965*320
900*1225*370
900*1225*370
900*1225*370
32
32
32
32
32
32
78
78
78
95
95
95
14 : 4*2.5
14 : 4*2.5
14 : 4*2.5
12 : 4*3.5
12 : 4*3.5
12 : 4*3.5
18 : 4*0.75
18 : 5*0.75
18 : 5*0.75
16 : 4*1.25
16 : 5*1.25
16 : 5*1.25
3/8(9.52)
3/8(9.52)
3/8(9.52)
3/8(9.52)
3/8(9.52)
3/8(9.52)
5/8(15.88)
5/8(15.88)
5/8(15.88)
3/4(19.05)
3/4(19.05)
3/4(19.05)
50
50
50
50
50
50
30
30
30
30
30
30
FoamPE/5mm FoamPE/5mm
FoamPE/5mm
FoamPE/5mm
FoamPE/5mm
FoamPE/5mm
Ø25 / 32
Ø25 / 32
Ø25 / 32
Ø25 / 32
Ø25 / 32
Ø25 / 32
LT-D3680CL LT-D3680HL LT-D3682HL LT-D4880CL LT-D4880HL LT-D4882HL
Power Supply
ø, V, Hz
Capacity
Cooling
kcal/h(W)
Btu/h
Heating
kcal/h(W)
Btu/h
Input
Cooling
W
Heating
W
Running Current
Cooling
A
Heating
A
Starting Current
Cooling
A
Heating
A
E.E.R
kcal/h(W)
C.O.P
W/W
Air Circulation
Indoor
m
3
/min
Outdoor
m
3
/min
Moisture Removal
l
/ h
Air-Flow Direction Control
Heating Operation Mode
Fan Speeds (steps)
Auto Operation (Changeover)
Forced Operation
Jet Cool
Soft Dry Operation
Timer Delay Safety Function
Feature
Air Deflection (Way)
Self Diagnosis
Hot start
Auto Restart
Air refresh (Hole)
High Ceiling
Group Control (Optional wiring)
Central Control
Wired remote controller (with weekly Program)
Plasma A/Cleaner
Refrigerant(R-22) Charge
g
Dimensions
Indoor
mm
(W x D x H)
Panel
mm
Outdoor
mm
Net Weight
Indoor
kg
Outdoor
kg
Main Power Cord
AWG#:P*mm
2
Connection Cable
AWG#:P*mm
2
Service Valve
Liquid
(inch)
Gas
(inch)
Installation Pipe
Length
(m)
Elevation
(m)
Insulation(material/thickness)
Drain Hose(I.D/O.D)
mm
Product Specifications (Cooling & Heating) 
–5–
–6–
Power Supply
ø, V, Hz
Capacity
Cooling
kcal/h(W)
Btu/h
Heating
kcal/h(W)
Btu/h
Input
Cooling
W
Heating
W
Running Current
Cooling
A
Heating
A
Starting Current
Cooling
A
Heating
A
E.E.R
kcal/h(W)
C.O.P
W/W
Air Circulation
Indoor
m
3
/min
Outdoor
m
3
/min
Moisture Removal
l
/ h
Air-Flow Direction Control
Heating Operation Mode
Fan Speeds (steps)
Auto Operation (Changeover)
Forced Operation
Jet Cool
Soft Dry Operation
Timer Delay Safety Function
Feature
Air Deflection (Way)
Self Diagnosis
Hot start
Auto Restart
Air refresh (Hole)
High Ceiling
Group Control (Optional wiring)
Central Control
Wired remote controller (with weekly Program)
Plasma A/Cleaner
Refrigerant(R-22) Charge
g
Dimensions
Indoor
mm
(W x D x H)
Panel
mm
Outdoor
mm
Net Weight
Indoor
kg
Outdoor
kg
Main Power Cord
AWG#:P*mm
2
Connection Cable
AWG#:P*mm
2
Service Valve
Liquid
(inch)
Gas
(inch)
Installation Pipe
Length
(m)
Elevation
(m)
Insulation(material/thickness)
Drain Hose(I.D/O.D)
mm
1, 220, 60
1, 220, 60
12,096(14,065)
12,096(14,065)
48,000 48,000
-
12,096(14,065)
-
48,000
5,000
5,000
-
4,500
24
24
-
22.5
55
55
-
55
2.3
2.3
-
2.93
30
30
58
58
5.3
5.3
O
O
X
O
4
4
O
O
O
O
O
O
O
O
O
O
4
4
O
O
X
O
O
O
O
O
O
O
O
O
Option
Option
O
O
X
X
4,300 4,300 
840*840*288
840*840*288
950*950*30
950*950*30
900*1225*370
900*1225*370
32
32
95
95
10 : 3*6.0
10 : 3*6.0
16 : 4*1.25
16 : 5*1.25
3/8(9.52)
3/8(9.52)
3/4(19.05)
3/4(19.05)
50
50
30
30
FoamPE/5mm
FoamPE/5mm
Ø25 / 32
Ø25 / 32
Model
LT-D4820CL
LT-D4820HL
–43–
Electronic Control Device 
■
MAIN P.C.B ASM
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