lsk1820cl mibi split lg
TRANSCRIPT
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Room Air ConditionerSVC MANUAL(Exploded View)
CAUTION
Before Servicing the unit, read the safety precautions in General SVC manual.
Only for authorized service personnel.
Internal Use Only
http://biz.lgservice.com
MODEL : LS-K1820CL/CM/HL/HM
LS-K1822CL/CM/HL
LS-K1860CL/CM/CN/HL/HM/HN LS-K1861CL/HL/HM
LS-K1862CL/HL/HM
LS-K1865HL/HM/HN
LS-K1866HL
LS-K2460CL/CM/CN/HL/HM/HN
LS-K2462CL/HL
LS-K2420CL/CM/HL/HM
LS-K2422CL/CM/HL
LS-K2621
LS-K2661CL/HL/HM
LS-K2662CL/HL/HMLS-K1863DL
LS-K1865EL
LS-K1866EL
LS-K2422AL
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LGE Internal Use Only
Contents
Functions .................................................................................................................................3
Product Specifications ..........................................................................................................5
Dimensions............................................................................................................................12
Refrigeration Cycle Diagram................................................................................................14
Pipe Length and the Elevation.............................................................................................16
Wiring Diagram......................................................................................................................17
Operation Details ..................................................................................................................21
Display Function ...................................................................................................................29
Self-diagnosis Function........................................................................................................29
Installation .............................................................................................................................30
Operation ...............................................................................................................................43
Disassembly of the parts (Indoor Unit) ...............................................................................45
2-way, 3-way Valve.................................................................................................................51
Cycle Troubleshooting Guide...............................................................................................58
Electronic Parts Troubleshooting Guide.............................................................................59
Electronic Control Device.....................................................................................................65
Schematic Diagram...............................................................................................................67
Exploded View.......................................................................................................................69
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- 3 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Functions
• Room temperature sensor. (THERMISTOR)
• Maintains the room temperature in accordance with the Setting Temp.
• Indoor fan is delayed for 5 sec at the starting.
• Restarting is inhibited for approx. 3 minutes.
• High, Med, Low
--- Lights up in operation
--- Lights up in Sleep Mode
--- Lights up in Timer Mode
--- Lights up in Deice Mode (for Heating Model)
OUTDOOR --- Lights up in compressor operation (for Cooling Model)
• Intermittent operation of fan at low speed.
• The fan is switched to low(Cooling), med(Heating) speed.
• The unit will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.
• The fan is switched to intermittent or irregular operation
• The fan speed is automatically switched from high to low speed.
• The louver can be set at the desired position or swing
up and down automatically.
Indoor Unit
Operation ON/OFF by Remote controller
Sensing the Room Temperature
Room temperature control
Starting Current Control
Time Delay Safety Control
Indoor Fan Speed Control
Operation indication Lamps (LED)
Soft Dry Operation Mode
• Both the indoor and outdoor fan
stops during deicing.
• The indoor fan stops until the
evaporator piping temperature will be
reached at 28°C.
Sleep Mode Auto Control
Natural Air Control by CHAOS Logic
Airflow Direction Control
Deice (defrost) control (Heating)
Hot-start Control (Heating)
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LGE Internal Use Only
Healthy Dehumidification Operation Mode.( )
Remote Controller
Operation ON/OFF
Reset
Operation Mode Selection
Temperature Setting
Timer Selection
Timer Setting
JET COOL
Timer Cancel
Sleep Operation
Airflow Direction Control
(Coolingmodel only)
(Heatingmodel only)
TEMPERATURE LOW HIGH
Cooling Operation Mode.( )
Heating Operation Mode.( )
Auto Operation Mode.( )
Fan Operation Mode
Horizontal Airflow Direction Control Button(Option)
Room, Temperature Display
Setting the Time or Timer
PLASMA(Option)/NEGATIVE ION(Option)
ON OFF
SET
PLASMA
CANCEL
Fan Speed Selection
(Low) (Med) (High) (CHAOS)
: (High:39°C Low:11°C)
: OFF, ON, OFF ON
: Cancel Sleep Mode, Timer ON or Timer OFF
: 1, 2, 3, 4, 5, 6, 7, Off Timer
: Fan Operates without cooling or heating.
Cooling Down to 18°CUp to 30°C
Heating Down to 16°CUp to 30°C
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- 5 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Product Specifications
Cooling CapacityBTU/h(kcal/h)
W
Heating CapacityBTU/h(kcal/h)
W
Moisture Removal l /h
Power Source Ø, V, Hz
Air Circulation m3 /min
Noise Level dB(A)±3
Input W
Runnig Current A
Starting Current A
E.E.R. BTU/h-W
C.O.P W/W
Motor Output W
mm
Net. Weight kg
Refrigerant(R-22) g
Airflow Direction Control (Up & Down)
Airflow Direction Control (Right & Left)
Negative lon
Air Purifying Filter
Deicer
Hot Start
Chaos Wind
Micom Dry
TimerSelf Diagnosis
Remocon type
Service valve
Sleeping Operation
Drain Hose
Connecting Cable
Power Cord
18,000(4,536)
5,274
-
-
2.5
1Ø, 220-240V, 50Hz
12
42
39
53
1,900
-
8.8
-
52
-
9.5
-
20
62
1,080 x 314 x 181
870 x 655 x 320
12
57
820
YES
NO
NO
NO(OPTION)
NO
NO
YES
YES
24hr ON/OFFYES
L.C.D Wireless
1/4"(6.35)
1/2"(12.7)
YES
YES
1.5mm2
1.5mm2
18,000(4,536)
5,274
19,000(4,788)
5,564
2.5
1Ø, 220-240V, 50Hz
12
42
39
53
1,950
1,950
8.7
8.7
53
53
9.2
2.86
20
62
1,080 x 314 x 181
870 x 655 x 320
12
59
1,270
YES
NO
NO
NO(OPTION)
YES
YES
YES
YES
24hr ON/OFFYES
L.C.D Wireless
1/4"(6.35)
1/2"(12.7)
YES
YES
1.5, 0.75mm2
1.5mm2
18,000(4,536)
5,274
-
-
2.5
1Ø, 220V, 60Hz
14
42
40
51
1,900
-
8.9
-
52
-
9.47
-
21
60
1,080 x 314 x 181
870 x 655 x 320
12
57
870
YES
NO
NO
NO
NO
NO
YES
YES
24hr ON/OFFYES
L.C.D Wireless
1/4"(6.35)
5/8"(15.88)
YES
YES
1.5mm2
1.5mm2
18,000(4,536)
5,274
19,000(4,788)
5,564
2.5
1Ø, 220V, 60Hz
14
42
40
51
1,800
1,900
8.5
8.9
52
52
10.0
2.93
21
60
1,080 x 314 x 181
870 x 655 x 320
12
58
1,360
YES
NO
NO
NO
YES
YES
YES
YES
24hr ON/OFFYES
L.C.D Wireless
1/4"(6.35)
5/8"(15.88)
YES
YES
1.5, 0.75mm2
1.5mm2
18,000(4,536)
5,274
-
-
2.5
1Ø, 220~240V, 50Hz
12
42
39
53
1,610
-
7.0
-
52
-
9.5
-
20
62
1,080 x 314 x 181
870 x 655 x 320
12
57
800
YES
NO
NO
NO
NO
NO
YES
YES
24hr ON/OFFYES
L.C.D Wireless
1/2"(12.7)
5/8"(15.88)
YES
YES
1.5mm2
1.5mm2
Model Name
Unit
Indoor
Outdoor
Indoor
Outdoor
Cooling
Heating
Cooling
Heating
Cooling
Heating
Cooling
Heating
Indoor
Outdoor
Indoor
Outdoor
Indoor
Outdoor
Liquid
Gas
Dimensions
(W x H x D)
Item
LS-
K1860CL/CM/CN
LS-
K1860HL/HM/HN
LS-
K1820CL/CM/CN
LS-
K1820HL/HM/HN LS-K1863DL
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LGE Internal Use Only
Cooling CapacityBTU/h(kcal/h)
W
Heating Capacity BTU/h(kcal/h)W
Moisture Removal l /h
Power Source Ø, V, Hz
Air Circulation m3 /min
Noise Level dB(A)±3
Input W
Runnig Current A
Starting Current A
E.E.R. BTU/h-W
C.O.P W/W
Motor Output W
mm
Net. Weight kg
Refrigerant(R-22) g
Airflow Direction Control (Up & Down)
Airflow Direction Control (Right & Left)
Negative lon
Air Purifying Filter
Plasma Filter
Deicer
Hot Start
Chaos Wind
Micom Dry
Timer
Self Diagnosis
Remocon type
Service valve
Sleeping Operation
Drain Hose
Connecting Cable
Power Cord
18,000(4,536)
5,274
--
2.5
1Ø, 220-240V, 50Hz
12
42
39
53
1,900
-
8.8
-
52
-
9.5
-
20
62
1,080 x 314 x 181
870 x 655 x 320
12
57
820
YES
YES
YES
YES
NO
NO
NO
YES
YES
24hr ON/OFF
YES
L.C.D Wireless
1/4"(6.35)
1/2"(12.7)
YES
YES
1.5mm2
1.5mm2
18,000(4,536)
5,274
19,000(4,788)5,564
2.5
1Ø, 220-240V, 50Hz
12
42
39
53
1,950
1,950
8.7
8.7
53
53
9.2
2.86
20
62
1,080 x 314 x 181
870 x 655 x 320
12
59
1,270
YES
YES
YES
YES
NO
YES
YES
YES
YES
24hr ON/OFF
YES
L.C.D Wireless
1/4"(6.35)
1/2"(12.7)
YES
YES
1.5, 0.75mm2
1.5mm2
18,000(4,536)
5,274
19,000(4,788)5,564
2.5
1Ø, 220-240V, 50Hz
12
42
39
53
1,950
1,950
9.2
9.2
53
53
9.2
2.86
20
62
1,080 x 314 x 181
870 x 655 x 320
12
59
1,470
YES
NO
NO
NO(OPTION)
NO
YES
YES
YES
YES
24hr ON/OFF
YES
L.C.D Wireless
1/4"(6.35)
1/2"(12.7)
YES
YES
1.5, 0.75mm2
1.5mm2
18,000(4,536)
5,274
19,000(4,788)5,564
2.5
1Ø, 220-240V, 50Hz
12
42
39
53
1,950
1,950
9.2
9.2
53
53
9.2
2.86
20
62
1,080 x 314 x 181
870 x 655 x 320
12
59
1,470
YES
NO
NO
NO(OPTION)
YES
YES
YES
YES
YES
24hr ON/OFF
YES
L.C.D Wireless
1/4"(6.35)
1/2"(12.7)
YES
YES
1.5, 0.75mm2
1.5mm2
Model Name
Unit
Indoor
Outdoor
Indoor
Outdoor
Cooling
Heating
Cooling
HeatingCooling
Heating
Cooling
Heating
Indoor
Outdoor
Indoor
Outdoor
Indoor
Outdoor
Liquid
Gas
Dimensions
(W x H x D)
Item
LS-K1861CL/CM/CN
LS-K1865HL/HM/HN
LS-K1866HL/HM/HN
LS-K1861HL/HM/HN
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LGE Internal Use Only
Cooling CapacityBTU/h(kcal/h)
W
Heating CapacityBTU/h(kcal/h)
W
Moisture Removal l /h
Power Source Ø, V, Hz
Air Circulation m3 /min
Noise Level dB(A)
Input W
Runnig Current A
Starting Current A
E.E.R. BTU/h-W
C.O.P W/W
Motor Output W
mm
Net. Weight kg
Refrigerant(R-22) g
Airflow Direction Control (Up & Down)
Airflow Direction Control (Right & Left)
Negative lon
Air Purifying Filter
Deicer
Hot Start
Chaos Wind
Micom Dry
TimerSelf Diagnosis
Remocon type
Service valve
Sleeping Operation
Drain Hose
Connecting Cable
Power Cord
24,000(6,048)
7,032
-
-
2.5
1Ø, 220-240V, 50Hz
16
42
44
54
2,470
-
11.3
-
52
-
9.7
-
35
83
1,080 x 314x 181
870 x 655 x 320
12
57
1,520
YES
NO
NO
NO(OPTION)
NO
NO
YES
YES
24hr ON/OFFYES
L.C.D Wireless
3/8"(9.52)
5/8"(15.88)
YES
YES
2.5mm2
2.5mm2
24,000(6,048)
7,032
24,000(6,040)
7,032
2.5
1Ø, 220-240V, 50Hz
16
42
44
54
2,670
2,610
12.2
11.9
53
53
9.0
2.635
35
83
1,080 x 314 x 181
870 x 655 x 320
12
59
1,300
YES
NO
NO
NO(OPTION)
YES
YES
YES
YES
24hr ON/OFFYES
L.C.D Wireless
3/8"(9.52)
5/8"(15.88)
YES
YES
2.5, 0.75mm2
2.5mm2
24,000(6,048)
7,032
-
-
3.5
1Ø, 220V, 60Hz
15.5
48
42±3
54±3
2,100
-
9.8
-
61
-
10.5
-
35
78
1,080 x 314 x 181
870 x 655 x 320
12
58
1,580
YES
NO
NO
NO(OPTION)
NO
NO
YES
YES
24hr ON/OFFYES
L.C.D Wireless
1/4"(6.35)
5/8"(15.88)
YES
YES
2.5mm2
2.5mm2
24,000(6,048)
7,032
24,000(6,048)
7,032
3.5
1Ø, 220V, 60Hz
16
48
44±3
55±3
2,525
2,525
12.0
12.0
70
70
9.5
2.78
35
78
1,080 x 314 x 181
870 x 655 x 320
12
65
1,610
YES
NO
NO
NO(OPTION)
YES
YES
YES
YES
24hr ON/OFFYES
L.C.D Wireless
1/4"(6.35)
5/8"(15.88)
YES
YES
2.5, 0.75mm2
2.5mm2
Model Name
Unit
Indoor
Outdoor
Indoor
Outdoor
Cooling
Heating
Cooling
Heating
Cooling
Heating
Cooling
Heating
Indoor
Outdoor
Indoor
Outdoor
Indoor
Outdoor
Liquid
Gas
Dimensions
(W x H x D)
Item
LS-K2460CL/CM/CN
LS-K2460HL/HM/HN
LS-K2420CL/CM/CN
LS-K2420HL/HM/HN
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- 8 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Cooling CapacityBTU/h(kcal/h)
W
Heating CapacityBTU/h(kcal/h)
W
Moisture Removal l /h
Power Source Ø, V, Hz
Air Circulation m3 /min
Noise Level dB(A)
Input W
Runnig Current A
Starting Current A
E.E.R. BTU/h-W
C.O.P W/W
Motor Output W
mm
Net. Weight kg
Refrigerant(R-22) g
Airflow Direction Control (Up & Down)
Airflow Direction Control (Right & Left)
Negative lon
Air Purifying Filter
Deicer
Hot Start
Chaos Wind
Micom Dry
TimerSelf Diagnosis
Remocon type
Service valve
Sleeping Operation
Drain Hose
Connecting Cable
Power Cord
26,000
7,032
-
-
2.5
1Ø, 220-240V, 50Hz
16
42
44
54
2,470
-
11.3
-
52
-
9.7
-
35
83
1,080 x 314 x 181
870 x 655 x 320
12
57
1,520
YES
YES
YES
YES
NO
NO
YES
YES
24hr ON/OFFYES
L.C.D Wireless
3/8"(9.52)
5/8"(15.88)
YES
YES
2.5mm2
2.5mm2
26,000
7,032
24,000(6,040)
7,032
2.5
1Ø, 220-240V, 50Hz
16
42
44
54
2,670
2,610
12.2
11.9
53
53
9.0
2.635
35
83
1,080 x 314 x 181
870 x 655 x 320
12
59
1,300
YES
YES
YES
YES
YES
YES
YES
YES
24hr ON/OFFYES
L.C.D Wireless
3/8"(9.52)
5/8"(15.88)
YES
YES
2.5, 0.75mm2
2.5mm2
26,000
7,032
-
-
3.5
1Ø, 220V, 60Hz
15.5
48
42±3
54±3
2,100
-
9.8
-
61
-
10.5
-
35
78
1,080 x 314 x 181
870 x 655 x 320
12
58
1,580
YES
YES
YES
YES
NO
NO
YES
YES
24hr ON/OFFYES
L.C.D Wireless
1/4"(6.35)
5/8"(15.88)
YES
YES
2.5mm2
2.5mm2
26,000
7,032
24,000(6,048)
7,032
3.5
1Ø, 220V, 60Hz
16
48
44±3
55±3
2,525
2,525
12.0
12.0
70
70
9.5
2.78
35
78
1,080 x 314 x 181
870 x 655 x 320
12
65
1,610
YES
YES
YES
YES
YES
YES
YES
YES
24hr ON/OFFYES
L.C.D Wireless
1/4"(6.35)
5/8"(15.88)
YES
YES
2.5, 0.75mm2
2.5mm2
Model Name
Unit
Indoor
Outdoor
Indoor
Outdoor
Cooling
Heating
Cooling
Heating
Cooling
Heating
Cooling
Heating
Indoor
Outdoor
Indoor
Outdoor
Indoor
Outdoor
Liquid
Gas
Dimensions
(W x H x D)
Item
LS-K2661CL/CM/CN
LS-K2661HL/HM/HN
LS-K2621CL/CM/CN
LS-K2621HL/HM/HN
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- 9 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Cooling Capacity BTU/h(kcal/h)
W
Heating Capacity BTU/h(kcal/h)
W
Moisture Removal l /h
Power Source Ø, V, Hz
Air Circulation m3 /min
Noise Level dB(A)±3
Input W
Runnig Current A
Starting Current A
E.E.R. BTU/h-W
C.O.P W/W
Motor Output W
mm
Net. Weight kg
Refrigerant(R-22) g
Airflow Direction Control (Up & Down)
Airflow Direction Control (Right & Left)
Negative lon
Air Purifying Filter
Plasma Filter
Soft Start
Deicer
Hot Start
Chaos Wind
Micom Dry
Timer
Self Diagnosis
Remocon type
Service valve
Sleeping Operation
Drain Hose
Connecting Cable
Power Cord
18,000(4,536)
5,274
-
-
2.5
1Ø, 220-240V, 50Hz
12
42
39
53
1,900
-
8.8-
52
-
9.5
-
20
62
1,080 x 314 x 181
870 x 655 x 320
12
57820
YES
NO
NO
YES
YES
NO
NO
NO
YES
YES
24hr ON/OFF
YES
L.C.D Wireless
1/4"(6.35)
1/2"(12.7)
YES
YES
1.5mm2
1.5mm2
18,000(4,536)
5,274
19,000(4,788)
5,564
2.5
1Ø, 220-240V, 50Hz
12
42
39
53
1,950
1,950
8.78.7
53
53
9.2
2.86
20
62
1,080 x 314 x 181
870 x 655 x 320
12
59
1,270
YES
NO
NO
YES
YES
NO
YES
YES
YES
YES
24hr ON/OFF
YES
L.C.D Wireless
1/4"(6.35)
1/2"(12.7)
YES
YES
1.5, 0.75mm2
1.5mm2
24,000(6,048)
7,032
-
-
2.5
1Ø, 220-240V, 50Hz
16
42
44
54
2,470
-
11.3-
52
-
9.7
-
35
83
1,080 x 314 x 181
870 x 655 x 320
12
57
1,520
YES
NO
NO
YES
YES
NO
NO
NO
YES
YES
24hr ON/OFF
YES
L.C.D Wireless
3/8"(9.52)
5/8"(15.88)
YES
YES
2.5mm2
2.5mm2
24,000(6,048)
7,032
24,000(6,048)
7,032
2.5
1Ø, 220-240V, 50Hz
16
42
44
54
2,670
2,610
12.211.9
53
53
9.0
2.635
35
83
1,080 x 314 x 181
870 x 655 x 320
12
59
1,550
YES
NO
NO
YES
YES
NO
YES
YES
YES
YES
24hr ON/OFF
YES
L.C.D Wireless
3/8"(9.52)
5/8"(15.88)
YES
YES
2.5, 0.75mm2
2.5mm2
Model Name
Unit
Indoor
Outdoor
Indoor
Outdoor
Cooling
Heating
CoolingHeating
Cooling
Heating
Cooling
Heating
Indoor
Outdoor
Indoor
Outdoor
Indoor
Outdoor
Liquid
Gas
Dimensions
(W x H x D)
Item
LS-K1862CL/CM/CN
LS-K1862HL/HM/HN
LS-
K2462CL/CM/CN
LS-
K2462HL/HM/CN
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- 10 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Cooling CapacityBTU/h(kcal/h)
W
Heating CapacityBTU/h(kcal/h)
W
Moisture Removal l /h
Power Source Ø, V, Hz
Air Circulation m3 /min
Noise Level dB(A)
Input W
Runnig Current A
Starting Current A
E.E.R. BTU/h-W
C.O.P W/W
Motor Output W
mm
Net. Weight kg
Refrigerant(R-22) g
Airflow Direction Control (Up & Down)
Airflow Direction Control (Right & Left)
Negative lon
Air Purifying Filter
Deicer
Hot Start
Chaos Wind
Micom Dry
TimerSelf Diagnosis
Remocon type
Service valve
Sleeping Operation
Drain Hose
Connecting Cable
Power Cord
24,000(6,048)
7,032
-
-
3.5
1Ø, 220V, 60Hz
15.5
48
42±3
54±3
2,100
-
9.8
-
61
-
10.5
-
35
78
1,080 x 314 x 181
870 x 655 x 320
1258
1,580
YES
NO
NO
YES
NO
NO
YES
YES
24hr ON/OFFYES
L.C.D Wireless
1/4"(6.35)
5/8"(15.88)
YES
YES
2.5mm2
2.5mm2
24,000(6,048)
7,032
24,000(6,048)
7,032
3.5
1Ø, 220V, 60Hz
16
48
44±3
55±3
2,525
2,525
12.0
12.0
70
70
9.5
2.78
35
78
1,080 x 314 x 181
870 x 655 x 320
1265
1,610
YES
NO
NO
YES
YES
YES
YES
YES
24hr ON/OFFYES
L.C.D Wireless
1/4"(6.35)
5/8"(15.88)
YES
YES
2.5, 0.75mm2
2.5mm2
18,000(4,536)
5,274
-
-
2.5
1Ø, 220V, 60Hz
14
42
40
51
1,900
-
8.9
-
52
-
9.47
-
21
60
1,080 x 314 x 181
870 x 655 x 320
1257
870
YES
NO
NO
YES
NO
NO
YES
YES
24hr ON/OFFYES
L.C.D Wireless
1/4"(6.35)
5/8"(15.88)
YES
YES
1.5mm2
1.5mm2
18,000(4,536)
5,274
19,000(4,788)
5,564
2.5
1Ø, 220V, 60Hz
14
42
40
51
1,800
1,900
8.5
8.9
52
52
10.0
2.93
21
60
1,080 x 314 x 181
870 x 655 x 320
1258
1,360
YES
NO
NO
YES
YES
YES
YES
YES
24hr ON/OFFYES
L.C.D Wireless
1/4"(6.35)
5/8"(15.88)
YES
YES
1.5, 0.75mm2
1.5mm2
Model Name
Unit
Indoor
Outdoor
Indoor
Outdoor
Cooling
Heating
Cooling
Heating
Cooling
Heating
Cooling
Heating
Indoor
Outdoor
Indoor
Outdoor
Indoor
Outdoor
Liquid
Gas
Dimensions
(W x H x D)
Item
LS-K2422CL/CM/CN
LS-K2422HL/HM/HN
LS-K1822CL/CM/CN
LS-K1822HL/HM/HN
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- 11 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Cooling CapacityBTU/h(kcal/h)
W
Heating CapacityBTU/h(kcal/h)
W
Moisture Removal l /h
Power Source Ø, V, Hz
Air Circulation m3 /min
Noise Level dB(A)
Input W
Runnig Current A
Starting Current A
E.E.R. BTU/h-W
C.O.P W/W
Motor Output W
mm
Net. Weight kg
Refrigerant(R-22) g
Airflow Direction Control (Up & Down)
Airflow Direction Control (Right & Left)
Negative lon
Air Purifying Filter
Deicer
Hot Start
Chaos Wind
Micom Dry
TimerSelf Diagnosis
Remocon type
Service valve
Sleeping Operation
Drain Hose
Connecting Cable
Power Cord
26,000
7,032
-
-
2.5
1Ø, 220-240V, 50Hz
16
42
44
54
2,470
-
11.3
-
52
-
9.7
-
35
83
1,080 x 314 x 181
870 x 655 x 320
12
57
1,520
YES
YES
YES
YES
NO
NO
YES
YES
24hr ON/OFFYES
L.C.D Wireless
3/8"(9.52)
5/8"(15.88)
YES
YES
2.5mm2
2.5mm2
26,000
7,032
24,000(6,040)
7,032
2.5
1Ø, 220-240V, 50Hz
16
42
44
54
2,670
2,610
12.2
11.9
53
53
9.0
2.635
35
83
1,080 x 314 x 181
870 x 655 x 320
12
59
1,300
YES
YES
YES
YES
YES
YES
YES
YES
24hr ON/OFFYES
L.C.D Wireless
3/8"(9.52)
5/8"(15.88)
YES
YES
2.5, 0.75mm2
2.5mm2
26,000
7,032
-
-
3.5
1Ø, 220V, 60Hz
15.5
48
42±3
54±3
2,100
-
9.8
-
61
-
10.5
-
35
78
1,080 x 314 x 181
870 x 655 x 320
12
58
1,580
YES
YES
YES
YES
NO
NO
YES
YES
24hr ON/OFFYES
L.C.D Wireless
1/4"(6.35)
5/8"(15.88)
YES
YES
2.5mm2
2.5mm2
26,000
7,032
24,000(6,048)
7,032
3.5
1Ø, 220V, 60Hz
16
48
44±3
55±3
2,525
2,525
12.0
12.0
70
70
9.5
2.78
35
78
1,080 x 314 x 181
870 x 655 x 320
12
65
1,610
YES
YES
YES
YES
YES
YES
YES
YES
24hr ON/OFFYES
L.C.D Wireless
1/4"(6.35)
5/8"(15.88)
YES
YES
2.5, 0.75mm2
2.5mm2
Model Name
Unit
Indoor
Outdoor
Indoor
Outdoor
Cooling
Heating
Cooling
Heating
Cooling
Heating
Cooling
Heating
Indoor
Outdoor
Indoor
Outdoor
Indoor
Outdoor
Liquid
Gas
Dimensions
(W x H x D)
Item
LS-K2662CL/CM/CN
LS-K2662HL/HM/HN
LS-K2622CL/CM/CN
LS-K2622HL/HM/HN
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(1) Indoor Unit
Dimensions
- 12 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Tubing hole cover
Tubing hole cover
Installation plate
DW
H
W
H
Tubing hole cover
Tubing hole cover
Installation plate
D
MODEL ALL MODELSDIMENSION
W mm 1,080
H mm 314
D mm 181
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- 13 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
W
L7 L6 L8 L9
D L 1
L 2
L 3
L 1 0
L 1 1
L 4
L 5
H
Gas side
3-way valve
Liquid side
2-way valve
(2) Outdoor Unit
MODELDIM
W mm 870
H mm 655
D mm 320
L1 mm 370
L2 mm 340
L3 mm 25
L4 mm 630
L5 mm 25
L6 mm 546
L7 mm 162
L8 mm 162
L9 mm 54
L10 mm 74.5
L11 mm 79
ALL MODELS
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- 14 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Refrigeration Cycle Diagram
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
3-WAY VALVE
LIQUID SIDE
LIQUID SIDE
2-WAY 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
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- 15 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
W
L7 L6 L8 L9
D L 1
L 2
L 3
L 1 0
L 1 1
L 4
L 5
H
Gas side
3-way valve
Liquid side
2-way valve
(2) Outdoor Unit
MODELDIM
W mm 870
H mm 655
D mm 320
L1 mm 370
L2 mm 340
L3 mm 25
L4 mm 630
L5 mm 25
L6 mm 546
L7 mm 162
L8 mm 162
L9 mm 54
L10 mm 74.5
L11 mm 79
ALL MODELS
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- 16 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Pipe length and the elevation
* Capicity is based on standard length and maximum allowance length is the basis ofreliability.
* Oil trap should be installed per 5~7 meters.
* Numerical value in "( )" is for Rotary Comp. model.
CAUTION
Outdoor unit
Indoor unit
A
B
AOil trap
Outdoor unit
Indoor unitB
In case more than 5m
18K(60Hz) 5/8" 1/4" 5 10 20 20
18K(50Hz) 1/2" 1/4" 5 15 30 30
24K(60Hz) 5/8" 1/4" 5 15 30 30
24K(50Hz) 5/8" 3/8" 5 15 30 30
Pipe SizeCapacity(Btu/h)
GAS LIQUID
AdditionalRefrigerant
(g/m)
Max.Length
A (m)
Max.Elevation
B (m)
StandardLength
(m)
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- 17 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Wiring Diagram
(1) Indoor Unit1. LS-K1820/1860/1861/2420/2460/2621/2661CL/CM/CN, LS-K1863DL
2. LS-K1820/1860/1861/1865/2420/2460/2621/2661HL/HM/HN
3854A90003L
INDOOR WIRING DIAGRAM
CN-DISP1
FUSEAC250V/T2A
C N - T H 1
SSR
SH-CAPA.
BR
G N / Y L
B R
Y L
OR
BK
C N - T A B 1
C N - T A B 2
RY-COMP.
ZNR
C N - M O T O R
THERMISTOR
FORCEDOPERATION
AUTORESTART
REMOTECONTROL
MOTOR
MAIN PCBASM
DISPLAY PCB ASM
POWER
TO OUTDOOR UNIT
PILLARTERMINAL
B R
B L
G N / Y L
B R
B L
G N / Y L
1(L) 2(N)
34
BL
C N - U / D
STEPMOTOR
C N - L / R
STEPMOTOR
WH
IONH.V.BGN
(GN/YL)
OPTION
3854A90003J
INDOOR WIRING DIAGRAM
CN-DISP1
C N - U / D
FUSEAC250V/T2A
C N - T H 1
SSR
SH-CAPA.
BR
G N / Y L
BL
B R
Y L
OR
BK
C N - T A B 1
C N - T A B 2
C N - 4 W A Y
RY-COMP.
ZNR
RY-4WAY
RY-FAN
C N - M O T O R
THERMISTOR
FORCEDOPERATION
AUTORESTART
REMOTECONTROL
STEPMOTOR
C N - L / R
STEPMOTOR
MOTOR
MAIN PCBASM
DISPLAY PCB ASM
POWER
TO OUTDOOR UNIT
PILLARTERMINAL
B R
B L
R D
B K
G N / Y L
B R
B L
R D
B K
G N / Y L
1(L) 2(N) 3 4
4 3WH
IONH.V.B
GN(GN/YL)
OPTION
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- 19 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
R
S
C FH
C
COMP.
TO INDOOR UNIT
OUTDOOR WIRING DIAGRAM
MOTORFAN
B R
OPTION
PTC
CAPACITOR
YL
TP
RD
TERMINALBLOCK
3854AR2735F
BR(OR)
BR BL
BK
YL
G N / Y L
G N / Y L
G N / Y L1(L)2(N)
(2) Outdoor Unit
1. LS-K1820/1860/1861/1862/2420/2422/2460/2462/2621/2622/2661/2662CL/CM/CN/CN
LS-K1863DL
2. LS-K1820/1822/1865/1866/HL/HM/HN
3854A90003K
OUTDOOR WIRING DIAGRAM
TO OUTDOOR UNIT
TERMINALBLOCK
CAPACITOR
PTC
B R B L R D B K G N
/ Y L
GN/YL
B R
B L
R D
B K
G N / Y L
1(L) 2(N) 3 4
COMP.FAN
MOTOR
BR
H C F
RSC
RD
T / B 1BR(OR)BK
(RD)
YL
BK
YL
T / B 2
REVERSINGVALVE
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- 20 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3. LS-K1860/1861/1862/2420/2460/2621/2661HL/HM/HN
3854A90003M
OUTDOOR WIRING DIAGRAM
TO OUTDOOR UNIT
TERMINALBLOCK
CAPACITOR
PTC
B R
B L
R D
B K
G N / Y L
GN/YL
B R
B L
R D
B K
G N / Y L
1(L) 2(N) 3 4
COMP.FAN
MOTOR
BR
H C F
RSC
RD
RD
BR
T/B 3
T/B 4
HEATER
RD
T / B 1
BR(OR)
BK(RD)
BK(RD)
YL
BK
YL
T / B 2
REVERSINGVALVE
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- 21 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
1. MAIN UNIT FUNCTION• DISPLAY
1) C/O Model (high quality LCD remote controller supplied)
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 (high quality LCD remote controller supplied)
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°CC 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 controller. 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 controller 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 Air Temp < 26°C => Intake Air Temp-1°C
18°C ≤ Intake Air Temp < 24°C => Intake Air Temp-0.5°C
Intake Air Temp < 18° => 18°C
• While in compressor off, the indoor fan repeats low airflow speed and pause.
Operation Details
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• While the intake air temp is between compressor on temp. and compressor off temp., 10-min dehumidificationoperation and 4-min compressor off repeat
Compressor ON Temp. => Setting Temp+0.5°C
Compressor OFF Temp. => Setting Temp-0.5°C
• In 10-min dehumidification operation, the indoor fan operates with the low airflow speed.
Heating Mode Operation
• When the intake air temp reaches +3°Cabove the setting temp, the compressor is turned off. When below thesetting temp, the compressor is turned on.
Compressor ON Temp. => Setting Temp.
Compressor OFF Temp. => Setting Temp.+3°C
• While in compressor on, the indoor fan is off when the indoor pipe temp. is below 26 ®¨C , when above 28°C , itoperates with the low or setting airflow speed (while in sleep mode, with the medium airflow speed).
• While in compressor off, the indoor fan is off when the indoor pipe temp is below 33°C , when above 35°C , it
operates with the low airflow speed.• If overloaded while in heating mode operation, in order to prevent the compressor from OLP operation, the out-
door fan is turned on/off according to the indoor pipe temp.
• While in defrost control, both of the indoor and outdoor fans are turned off.
Defrost Control (New Type Defrost Control)
• While in heating mode operation in order to protect the evaporator pipe of the outdoor unit from freezing,
reversed to cooling cycle to defrost the evaporator pipe of the outdoor unit.
• Defrost control is available 60 min. later since heating mode operation started, and it will not prolong over 12min.
• Defrost control is carried out according to the following priority order while in heating mode operation.
1st priority : Defrost control is carried out according to the indoor pipe temp 60 min. later since heating modeoperation started.
2nd priority : The temp differences between the indoor pipe temp and the intake air temp 25 min. later (∆T1)and 60 min. later (∆T2) since heating mode operation started are measured, then defrost control is
carried out according to the difference (∆T=∆T1-∆T2).
3rd priority : Defrost control is carried out according to the temp difference (∆TE=TE1-TE2) between the indoorpipe temperatures of 25 min later (TE1) and 60 min later (TE2) after heating mode operation start-ed.
• When the indoor pipe temp is 41°C or above, defrost control is not carried out even if the condition is one of thedefrost conditions above.
• While in defrost control, the compressor is on and the indoor fan, the outdoor fan, and the 4 way valve are off.
Defrost Control (Fuzzy Rule applied)
• While in heating mode operation in order to protect the evaporator pipe of the outdoor unit from freezing,reversed to cooling cycle to defrost the evaporator pipe of the outdoor unit.
• After 40 min heating mode operation, at 4 min interval, whether to carry out defrost control or not and the timeof defrost control are determined according to the following conditions.
1) While in heating mode operation, the maximum of the indoor pipe temperature is measured and it is comparedwith the present indoor pipe temperature to get the difference of the indoor pipe temperatures (=the maximum
temperature of indoor pipe ? the present temperature of indoor pipe), according to which, whether to carry outdefrost control or not is determined.
- 22 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
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2) According to the need of defrost control shown above and the elapsed time of heating mode operation at that
moment, the defrost control time is determined.
3) When the determined time of defrost control is below 7 min, heating mode operation continues without carry-ing out defrost control. According to the procedure stated above, the determination is made again. When the
defrost control time is 7 min or longer, defrost control is then carried out.
• While in defrost control, the minimum temp of the indoor pipe is measured and it is compared with the presenttemp of the indoor pipe to get the difference of the indoor pipe temperatures (=the present temperature of theindoor pipe ? the minimum temperature of the indoor pipe). When the difference is 5°C or higher, defrost con-
trol is completed and heating mode operation is carried out.
• While in defrost control, if the defrost time determined before the start of defrost control is completed, defrostcontrol stops and heating mode operation is carried out regardless of the above condition.
• When the indoor pipe temp is 42°C or above, defrost control is not carried out even if the condition is one of the
defrost conditions above.
• While in defrost control, the compressor is on and the indoor fan, the outdoor fan, and the 4 way valve are off.
Fuzzy Operation (C/O Model)
• According to the temperature set by Fuzzy rule, when the intake air temp is 0.5°C or more below the settingtemp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor is turned on.
Compressor ON Temp => Setting Temp+0.5°C
Compressor OFF Temp => Setting Temp+0.5°C
• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to theintake air temp at that time.
26°C ≤ Intake Air Temp => 25°C
24°C ≤ Intake Air Temp Intake Air Temp+1°C
22°C ≤ Intake Air Temp Intake Air Temp+0.5°C
18°C ≤ Intake Air Temp Intake Air Temp
Intake Air Temp 18°C
• When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the
Fuzzy key value and the intake air temperature at that time are compared to select the setting temperatureautomatically according to the Fuzzy rule.
• While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to the tempera-ture
Fuzzy Operation (H/P Model)
• When any of operation mode is not selected like the moment of the power on or when 3 hrs has passed since
the operation off, the operation mode is selected.
• When determining the operation mode, the compressor, the outdoor fan, and the 4 way valve are off and onlythe indoor fan is operated for 15 seconds. Then an operation mode is selected according to the intake air tempat that moment as follows.
24°C ≤ Inatake Air Temp => Fuzzy Operation for Cooling
21°C ≤ Inatake Air Temp Fuzzy Operation for Dehumidification
Inatake Air Temp Fuzzy Operation for Heating
• If any of the operation modes among cooling / dehumidification / heating mode operations is carried out for 10sec or longer before Fuzzy operation, the mode before Fuzzy operation is operated.
- 23 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
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1) Fuzzy Operation for Cooling
• According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C or more belowthe setting temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor is
turned on.
Compressor ON Temp => Setting Temp+0.5°C
Compressor OFF Temp => Setting Temp+0.5°C
• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the
intake air temp at that time.
26°C ≤ Intake Air Temp => 25°C
24°C ≤ Intake Air Temp Intake Air Temp+1°C
22°C ≤ Intake Air Temp Intake Air Temp+0.5°C
18°C ≤ Intake Air Temp Intake Air Temp
Intake Air Temp < 18°C => 18°C
• When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the
Fuzzy key value and the intake air temperature at that time are compared to select the setting temperatureautomatically according to the Fuzzy rule.
• While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to the temperature.
2) Fuzzy Operation for Dehumidification
• According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C or more below
the setting temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor isturned on.
Compressor ON Temp => Setting Temp+0.5°C
Compressor OFF Temp => Setting Temp+0.5°C
• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the
intake air temp at that time.26°C ≤ Intake Air Temp => 25°C
24°C ≤ Intake Air Temp Intake Air Temp+1°C
22°C ≤ Intake Air Temp Intake Air Temp+0.5°C
18°C ≤ Intake Air Temp Intake Air Temp
Intake Air Temp < 18°C => 18°C
• When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, theFuzzy key value and the intake air temperature at that time are compared to select the setting temperatureautomatically according to the Fuzzy rule.
• While in Fuzzy operation, the airflow speed of the indoor fan repeats the low airflow speed or pause as in dehu-midification operation.
3) Fuzzy Operation for Heating
• According to the setting temperature selected by Fuzzy rule, when the intake air temp is 3°C or more above thesetting temp, the compressor is turned off. When below the setting temp, the compressor is turned on.
Compressor ON Temp => Setting Temp
Compressor OFF Temp => Setting Temp + 3°C
• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to theintake air temp at that time.20°C ≤ Intake Air Temp => Intake Air Temp + 0.5°C
Intake Air Temp < 20°C => 20°C
- 24 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
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Chaos Swing Mode
• By the Chaos Swing key input, the upper/lower vane automatically operates with the Chaos Swing or they are
fixed to the desired direction.
• While in Chaos Swing mode, the angles of cooling and heating cycle operations are different.
Chaos Natural Wind Mode
• When the Chaos Natural Wind mode is selected and then operated, the high, medium, or low speed of the air-
flow mode is operated for 2~15 sec randomly by the Chaos Simulation.”
Jet Cool Mode Operation (C/O Model)
• If the Jet Cool key is input at any operation mode while in appliance operation, the Jet Cool mode operates.
• In the Jet Cool mode, the indoor fan is operated at super-high speed for 30 min at cooling mode operation.
• In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18°C
• When the sleep timer mode is input while in the Jet Cool mode operation, the Jet Cool mode has the priority.• When the Jet Cool key is input, the upper/lower vanes are reset to those of the initial cooling mode and then
operated in order that the air outflow could reach further.
Jet Cool Mode Operation (H/P Model)
• While in heating mode or Fuzzy operation, the Jet Cool key cannot be input. When it is input while in the other
mode operation (cooling, dehumidification, ventilation), the Jet Cool mode is operated.”
• In the Jet Cool mode, the indoor fan is operated at super-high speed for 30 min at cooling mode operation.
• In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18°C
• When the sleep timer mode is input while in the Jet Cool mode operation, the Jet Cool mode has the priority.
• When the Jet Cool key is input, the upper/lower vanes are reset to those of the initial cooling mode and thenoperated in order that the air outflow could reach further.
Auto Restarting Operation
• When the power is restored after a sudden power failure while in appliance operation, the mode before the
power failure is kept on the memory and the appliance automatically operates in the mode on the memory.
• The slide switch on the main unit of the appliance should be on the Auto Restarting position in order that the
Auto Restarting operation is available.
• Operation Mode that is kept on the memory
- State of Operation ON/OFF
- Operation Mode/Setting Temp/Selected Airflow Speed
- Sleep Timer Mode/Remaining Time of Sleep Timer (unit of hour)
• If no input by the remote controller or no switching of the slide switch within 7 hr after the appliance operates by
the Auto Restarting operation, the appliance is forced to stop at the moment of 7-hr elapse.
- 26 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
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Forced Operation ( C/O Model)
• To operate the appliance by force in case that the remote controller is lost, the forced operation selection switchis on the main unit of the appliance to operate the appliance in the standard conditions.
• When the power is supplied while the slide switch is on the forced operation position, or when the slide switchposition is switched to the Auto Restarting position (or test operation) or switched from the remote control posi-tion to the forced operation position while the power is on, the forced operation is carried out.
• When the slide switch position is switched from the forced operation position to the Auto Restarting position or
the remote control position, the forced operation is canceled and the appliance stops operating.
• The forced operation is carried out in cooling mode with the setting temperature 22°C and the high speed of air-flow.
• While in forced operation, the key input by the remote controller has no effect and the buzzer sounds 10 times
to indicate the forced operation.
Forced Operation ( H/P Model)
• To operate the appliance by force in case that the remote controller is lost, the forced operation selection switchis on the main unit of the appliance to operate the appliance in the standard conditions.
• When the power is supplied while the slide switch is on the forced operation position, or when the slide switchposition is switched to the Auto Restarting (or test operation) position or switched from the remote control posi-
tion to the forced operation position while the power is on, the forced operation is carried out.
• When the slide switch position is switched from the forced operation position to the Auto Restarting position orthe remote control position, the forced operation is canceled and the appliance stops operating.
• The forced operation is carried out in cooling mode with the setting temperature 22°C and the high speed of air-flow.
• In the forced operation mode, the indoor fan is operated at low speed for around 15 sec and then the operationcondition is set according to the intake air temperature as follows.
24°C ≤ Intake Air Temp => Cooling Mode Operation, 22°C, High Speed
21°C ≤ Intake Air Temp < 24°C => Dehumidification Operation, 23°C, High Speed
Intake Air Temp < 21°C => Heating Mode Operation, 24°C, High Speed
• While in forced operation, the key input by the remote controller has no effect and the buzzer sounds 10 timesto indicate the forced operation.
Test Operation Control
• To check the condition of the installation when installing the appliance, the appliance is operated at cooling
mode, high speed of airflow, compressor-on for 18 min without controlling the room temperature.
• Only when the slide switch on the main unit is switched from the remote control position to the test operationposition, test operation is carried out.
• When the slide switch position is switched to the remote control position while in test operation, the test opera-tion is canceled and the appliance is stopped. When switched to the forced operation position, the test opera-tion is canceled and the forced operation is carried out.
• While in test operation, a key can be input by the remote controller.When a key (operation start/stop, operation mode selection, airflow speed selection, temperature control, Jet
Cool) is input by the remote controller, the test operation is canceled and the appliance is operated according tothe setting by the remote controller.
- 27 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
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Remote Control Operation Mode
• When the remote control is selected by the slide switch on the main unit, the appliance operates according tothe input by the remote controller.
Protection of the evaporator pipe from frosting
• If the indoor pipe temp is below 0°C in 7 min after the compressor operates without any pause while in cooling
cycle operation mode, the compressor and the outdoor fan are turned off in order to protect the indoor evapora-tor pipe from frosting.
• When the indoor pipe temp is 7°C or higher after 3 min pause of the compressor, the compressor and the out-
door fan is turned on according to the condition of the room temperature.
Buzzer Sounding Operation
• When the appliance-operation key is input by the remote controller, the short “beep-beep-” sounds.
• When the appliance-pause key is input by the remote controller, the long “beep—” sounds.
• When a key is input by the remote controller while the slide switch on the main unit of the appliance is on theforced operation position, the error sound “beep-beep-beep-beep-beep-” is made 10 times to indicate that theremote control signal cannot be received.
Self Diagnosis Operation
Thermistor Error Indicator
• When the indoor pipe sensor or the room temperature sensor is open or is shorted, the error is indicated.
• To indicate the error, the operation LED (or the cooling LED) flashed at 3 sec interval.
• When the error is cleared, the LED stops flashing, the operation (or cooling) LED is on.
• While in appliance pause, the error is not indicated.
• Since the airflow quantity and speed are controlled by the adjustment of the vane angle using the Wind-upeffect, you can enjoy the natural and pleasant wind uniformly at any location in the room.
• Since the indoor outflow air is sucked again by the upper/lower vanes, the indoor temperature drop is mini-
mized and the pleasant humidity is maintained.
Air Cleaner Operation
• When an air cleaner function is selected during Air Conditioner operation- Plasma air cleaner function will be operated while in any operation mode with selecting the function.- The function is to be stopped while it is operating with selecting the function.
• When an air cleaner function is selected during operation off
- The function will be only operated.• When inlet grille of air conditioner is opened during plasma operation, High Voltage Generator(H.V.B) is to be
stopped. When inlet grille of air conditioner is closed during plasma operation, High Voltage Generator(H.V.B)
will be operated again.
- 28 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
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LGE Internal Use Only
Display Function
1. Heating Model 2. Cooling Model
• Cooling, Soft Dry, Fan, Heating • Cooling, Soft Dry, Fan
• Sleep Mode • Sleep Mode
• Timer Mode • Timer Mode
• Hot-start, Deice
Self-diagnosis Function
Thermistor Cut Off or Short
Cut Off/Short : Blinks on and off the operation mode LED. (0.5 sec ON/3 sec OFF)
Protection of the evaporator pipe from frosting
If the temperature of the indoor pipe is below 0°C after 7 minutes from starting the compressor, the compressor
and outdoor fan is stopped, and then after 3 minutes delay of operating of the compressor, when the tempera-
ture of the indoor pipe is over 7°C, the compressor and the outdoor fan is reoperated.
Operation Indicator
Timer Indicator
Sleep Timer Indicator
Deicer Indicator
Operation Indicator
Timer Indicator
Sleep Timer Indicator
Compressor on Indicator
OUT
DOOR
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- 30 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
InstallationRead completely, then follow step by step.
1. Installation of Indoor, Outdoor unit
1) Select the best location
1. Indoor unit
Do not have any heat or steam near the unit.
Select a place where there are no obstacles infront of the unit.Make sure that condensation drainage can be
conveniently routed away.Do not install near a doorway.Ensure that the space around the left and right of
the unit is more than 5cm. The unit should beinstalled as high on the wall as possible, allowinga minimum of 5cm from ceiling.
Use a stud finder to locate studs to prevent
unnecessary damage to the wall.
2. Outdoor unitIf an awning is built over the unit to prevent directsunlight or rain exposure, make sure that heat
radiation from the condenser is not restricted.Ensure that the space around the back and sidesis more than 10cm. The front of the unit should
have more than 70cm of space.Do not place animals and plants in the path ofthe warm air.
Take the air conditioner weight into account andselect a place where noise and vibration are min-imum.
Select a place so that the warm air and noisefrom the air conditioner do not disturb neighbors.
Rooftop Installations:
If the outdoor unit is installed on a roof structure,be sure to level the unit. Ensure the roof structure
and anchoring method are adequate for the unitlocation. Consult local codes regarding rooftopmounting.
2) Piping length and elevation
More than 5cmMore than 5cm
More than 2.3m More than 5cm
More than 10cm More than 10cm
More
than 60cm
More than 60cm
More than 70cm
In case more than 5m
• Capacity is based on standard length and maximumallowance length is on the basis of reliability.
• Oil trap should be installed every 5~7 meters.
Outdoor unit
Indoor unit
A
B
AOil trap
Outdoor unit
Indoor unitB
CAUTION
Install the indoor unit on the wall where the heightfrom the floors more than 2.3 meters.
CAUTION
18K(60Hz) 5/8" 1/4" 5 10 20 20
18K(50Hz) 1/2" 1/4" 5 15 30 30
24K(60Hz) 5/8" 1/4" 5 15 30 30
24K(50Hz) 5/8" 3/8" 5 15 30 30
Pipe SizeCapacity(Btu/h) GAS LIQUID
Max.lengthA (m)
AdditionalRefrigerant
(g/m)
Max.Elevation
B (m)
StandardLength
(m)
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LGE Internal Use Only
3) How to fix installation plateThe wall you select should be strong and solid enough to preventvibration
1. Mount the installation plate on the wall with fourtype A screws. If mounting the unit on a concretewall, use anchor bolts.
Mount the installation plate horizontally by align-
ing the centerline using a level.
2. Measure the wall and mark the centerline. It is also
important to use caution concerning the locationof the installation plate-routing of the wiring topower outlets is through the walls typically.
Drilling the hole through the wall for piping con-nections must be done safely.
5 - 7
m m
( 0 . 2 ~ 0 . 3
" )
Indoor
WALL
Outdoor
Installation Plate
Marking-off line
Thread
Weight
Type "A" screw
"D" "C"
Right rear pipingLeft rear piping
Hole center ø70mm
4) Drill a hole in the wall
Drill the piping hole with a ø70mm hole core drill.
Drill the piping hole at either the right or the left
with the hole slightly slanted to the outdoor side.
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- 32 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
1) Flaring work
Main cause for gas leakage is due to defect in flar-ing work. Carry out correct flaring work in the follow-ing procedure.
1. Cut the pipes and the cable.
Use the piping kit accessory or the pipes pur-chased locally.Measure the distance between the indoor andthe outdoor unit.Cut the pipes a little longer than measured dis-tance.Cut the cable 1.5m longer than the pipe length.
2. Burrs removal
Completely remove all burrs from the cut crosssection of pipe/tube.Put the end of the copper tube/pipe in a down-ward direction as you remove burrs in order toavoid dropping burrs into the tubing.
3. Putting nut on
Remove flare nuts attached to indoor and out-
door unit, then put them on pipe/tube havingcompleted burr removal.(not possible to put them on after flaring work)
Copperpipe 90° Slanted Uneven Rough
Bar
Copper pipe
Clamp handleRed arrow mark
Cone
Yoke
Handle
Bar " A "
Pipe
Reamer
Point down
4. Flaring work
Carry out flaring work using flaring tool as shownbelow.
Firmly hold copper pipe in a die in the dimension
shown in the table above.
5. Check
Compare the flared work with figure below.If flare is noted to be defective, cut off the flaredsection and do flaring work again.
Outside diameter A
mm inch mm
ø6.35 1/4 0 ~ 0.5
ø9.52 3/8 0 ~ 0.5
ø12.7 1/2 0 ~ 0.5
ø15.88 5/8 0 ~ 1.0
Flare nut
Copper tube Inclined
Inside is shiny without scratches
Smooth all round
Even lengthall round
Surfacedamaged
Cracked Uneventhickness
= Improper flaring =
2. Flaring Work and Connection of Piping
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- 33 - Copyright ©2007 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
2) Connection of piping-Indoor
Preparing the indoor unit's piping and drain hose
for installation through the wall.
Remove the plastic tubing retainer(see illustra-tion below) and pull the tubing and drain hoseaway from chassis.
Replace the plastic tubing holder in the original
position.
1. Route the indoor tubing and the drain hose in thedirection of rear left.
2. Insert the connecting cable into the indoor unit
from the outdoor unit through the piping hole.
Do not connect the cable to the indoor unit.
Make a small loop with the cable for easy con-
nection later.
4. Indoor unit installation
Hook the indoor unit onto the upper portion of
the installation plate.(Engage the two hooks ofthe rear top of the indoor unit with the upper
edge of the installation plate.) Ensure that thehooks are properly seated on the installationplate by moving it left and right.
Press the lower left and right sides of the unit against the installation plate until the hooks engage into their slots(clicking sound).
3. Tape the tubing, drain hose and the connecting
cable. Be sure that the drain hose is located at thelowest side of the bundle. Locating at the upperside can cause drain pan to overflow inside theunit.
5. Connecting the pipings to the indoor unit anddrain hose to drain pipe.
Align the center of the pipings and sufficiently
tighten the flare nut by hand.
NOTE: If the drain hose is routed inside the room, insulate thehose with an insulation material* so that dripping from"sweating"(condensation) will not damage furniture orfloors.*Foamed polyethylene or equivalent is recommended.
To remove the holder,press the bottom ofchassis near the holderupward and pull the tabout of its hole.
Tubing holder
Pull
Press
2
1
Connectingcable
Loop
Gas sidepiping
Liquid sidepipingDrain hose
Drain hose
Connectingcable
Drain hose
Indoor unit tubing Flare nut Pipings
For left rear piping
CAUTION
When install, make sure that
the remaining parts must beremoved clearly so as not todamage the piping and drain
hose, especially power cordand connecting cable.
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LGE Internal Use Only
6. Wrap the insulation material around the connect-ing portion.
Overlap the connection pipe insulation materialand the indoor unit pipe insulation material.Bind them together with vinyl tape so that thereis no gap.
1. Route the indoor tubing and the drain hose to therequired piping hole position.
2. Insert the piping, drain hose and the connecting
cable into the piping hole.
Plastic bandsInsulation material
Drain pipe
Connecting cable
Vinyl tape(narrow)
Connectionpipe
Connecting cable
Vinyl tape(wide)
Wrap with vinyl tape
Indoorunit pipe
Pipe
Torque wrench
Indoor unit tubing
Spanner (fixed)
Connection
Flare nut
Vinyl tape(narrow)Adhesive
Drain pipe
Indoor unit drain hose
When extending the drain hose at the indoor
unit, install the drain pipe.
Tighten the flare nut with a wrench.
18K, 24K, 26K1/2"[5.5kg.m] 1/4"[1.8kg.m]
5/8"[6.6kg.m] 3/8"[4.2kg.m]
Pipe Size[Torque]Capacity
(Btu/h) GAS LIQUID
Wrap the area which accommodates the rearpiping housing section with vinyl tape.
Bundle the piping and drain hose together bywrapping them with vinyl tape over the range
within which they fit into the rear piping housingsection.
For right rear piping
Wrap with vinyl tape
Drain hose
Pipe
Vinyl tape(wide)
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LGE Internal Use Only
3. Insert the connecting cable into the indoor unit.
Don't connect the cable to the indoor unit.
Make a small loop with the cable for easy con-
nection later.
4. Tape the drain hose and the connecting cable.
Connecting cable
5. Indoor unit installation
Hang the indoor unit from the hooks at the top ofthe installation plate.
Insert the spacer etc. between the indoor unitand the installation plate and separate the bot-
tom of the indoor unit from the wall.
Installation plate
Spacer
Indoor unit
8cm
6. Connecting the pipings to the indoor unit and the
drain hose to drain pipe.
Align the center of the pipings and sufficiently
tighten the flare nut by hand.
Tighten the flare nut with a wrench.
7. Wrap the insulation material around the connect-
ing portion.
Overlap the connection pipe heat insulation and
the indoor unit pipe heat insulation material. Bindthem together with vinyl tape so that there is nogap.
Plastic bandsInsulation material
Vinyl tape(narrow)
Connectionpipe
Connecting cable
Indoorunit piping
Pipe
Vinyl tape
(wide)
Wrap with vinyl tapeIndoor unit tubing Flare nut Pipings
Torque wrench
Indoor unit tubing
Spanner (fixed)
Connection pipe
Flare nut
Vinyl tapeAdhesive
Drain hose
Indoor unit drain hose
(narrow)
When extending the drain hose at the indoor
unit, install the drain pipe.
Wrap the area which accommodates the rear piping housing
section with vinyl tape.
18K, 24K, 26K
1/2"[5.5kg.m] 1/4"[1.8kg.m]
5/8"[6.6kg.m] 3/8"[4.2kg.m]
Pipe Size[Torque]Capacity
(Btu/h) GAS LIQUID
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LGE Internal Use Only
3) Connection of the pipes-Outdoor
1. Align the center of the pipings and sufficientlytighten the flare nut by hand.
2. Finally, tighten the flare nut with torque wrenchuntil the wrench clicks.
When tightening the flare nut with torque wrench,
ensure the direction for tightening follows thearrow on the wrench.
Outdoor unit
Liquid side piping(Smaller diameter)
Gas sidepiping(Biggerdiameter)
Torque wrench
Outdoor unit
Gas side piping(Bigger diameter)
Liquid sidepiping(Smallerdiameter)
Torque wrench
8. Reroute the pipings and the drain hose across the
back of the chassis.
9. Set the pipings and the drain hose to the back ofthe chassis with the tubing holder.
Hook the edge of tubing holder to tap on chassisand push the bottom of tubing holder to beengaged at the bottom of chassis.
10. Indoor unit installation
Remove the spacer.
Ensure that the hooks are properly seated on the
installation plate by moving it left and right.
Drain hose
Connectingcable
Piping forpassage throughpiping hole
Tubing holder
Hook1
Push2
Drain hoseVinyl tape(narrow)
Pipe
Wrap withvinyl tape(wide)
Bundle the piping and drain hose together by
wrapping them with cloth tape over the rangewithin which they fit into the rear piping housingsection.
Press the lower left and right sides of the unit against the installation plate until the hooks engage into their slots(clicking sound).
18K, 24K, 26K1/2"[5.5kg.m] 1/4"[1.8kg.m]
5/8"[6.6kg.m] 3/8"[4.2kg.m]
Pipe Size[Torque]Capacity(Btu/h) GAS LIQUID
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LGE Internal Use Only
1) Connect the cable to the Indoor unit.
Connect the cable to the indoor unit by connect-
ing the wires to the terminals on the controlboard individually according to the outdoor unitconnection.(Ensure that the color of the wires of the outdoor
unit and the terminal No. are the same as thoseof the indoor unit.)
CAUTION The power cord connected to the indoor unit shouldbe complied with the following specifications(Type H05VV-F approved by HAR or SAA).
1(L)
Terminals on the outdoor unit
Terminals on the indoor unit
1(L) 2(N)
2(N)
BROWN BLUE GREEN/YELLO
BROWN BLUE GREEN/YELLO
Terminals on the outdoor unit
Terminals on the indoor unit 1(L)
1(L)
2(N)
2(N)
3 4
3 4
BROWN BLUE G/Y BLACK RED
BROWN BLUE G/Y RED
BROWN BLUE BLACK
BLACK
G/Y RED
REDG/YBLUEBROWN
The power connecting cable connected to the indoorand outdoor unit should be complied with the followingspecifications(Type H07RN-F approved by HAR or SAA).
The connecting cable connected to the indoor andoutdoor unit should be complied with the followingspecifications
(Type H07RN-F approved by HAR or SAA).
• Cooling model
• Heat pump model
Color of Wires
Color of Wires
Color of Wires
Color of Wires
The length of the power supply cord should be over 1.8mmeasured from the power supply cord entry of the cabinetto the middle of the live pin of the plug.
Air
Conditioner
Main power source
If a power plug is not to be used, provide a circuit breaker between power source andthe unit as shown below.
Circuit BreakerUse a circuit break-er or time delayfuse.
CAUTION
Capacity
(Btu/h)
NORMAL CROSS
-SECTIONAL AREA
18K
24K26K
1.5mm2
2.5mm2
Capacity
(Btu/h)
NORMAL CROSS
-SECTIONAL AREA
18K
24K26K
1.5mm2
2.5mm2
3. Connecting the Cable Between Indoor Unit and Outdoor Unit
NORMALCROSS-SECTIONALAREA 0.75mm2
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LGE Internal Use Only
2) Connect the cable to the outdoor unit
1. Remove the control cover from the unit byloosening the screw.
Connect the wires to the terminals on thecontrol board individually.
2. Secure the cable onto the control board with
the cord clamp.
3. Refix the control cover to the original positionwith the screw.
4. Use a recognized circuit breaker 20A (18K),
25A (24K, 26K) between the power source and
the unit. A disconnecting device to adequate-ly disconnect all supply lines must be fitted.
Terminal block
Over 5mm
Cover control
Connecting cable
Connecting cable
After the confirmation of the above conditions, prepare the wiring as follows:
1) Never fail to have an individual power circuit specifically for the air conditioner. As for the method ofwiring, be guided by the circuit diagram posted on the inside of control cover.
2) The screw which fasten the wiring in the casing of electrical fittings are liable to come loose from vibra-tions to which the unit is subjected during the course of transportation. Check them and make sure that
they are all tightly fastened. (If they are loose, it could cause burn-out of the wires.)
3) Specification of power source.
4) Confirm that electrical capacity is sufficient.
5) See to that the starting voltage is maintained at more than 90 percent of the rated voltage marked on thename plate.
6) Confirm that the cable thickness is as specified in the power source specification.(Particularly note the relation between cable length and thickness.
7) Always install an earth leakage circuit breaker in a wet or moist area.
8) The following would be caused by voltage drop.
• Vibration of a magnetic switch, which will damage the contact point, fuse breaking, disturbance of the nor-mal function of the overload.
9) The means for disconnection from a power supply shall be incorporated in the fixed wiring and have anair gap contact separation of at least 3mm in each active(phase) conductors.
Outdoor Unit
CAUTION
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2) Form the piping1. Form the piping by wrapping the connecting por-
tion of the indoor unit with insulation material and
secure it with two kinds of vinyl tapes.
If you want to connect an additional drain hose,
the end of the drain outlet should be routedabove the ground. Secure the drain hose appro-priately.
2. In cases where the outdoor unit is installed below
the indoor unit perform the following.
Tape the piping, drain
hose and connectingcable from down to up.
Secure the tappedpiping along theexterior wall using
saddle or equivalent.
Taping
Drainhose
Pipings
Connectingcable
;
;
Trap is required to prevent waterfrom entering into electrical parts.
Seal small openings
around pipings with agum type sealer.
3. In cases where the Outdoor unit is installed above
the Indoor unit perform the following.
Tape the piping and connecting cable from down
to up.
Secure the taped piping along the exterior wall.
Form a trap to prevent water entering the room.
Fix the piping onto the wall by saddle or equiva-
lent.
;
;
Seal a small openi