LG LK-0580HC User manual

Single Packaged
Air Conditioner
SERVICE MANUAL
MODELS: LK-0580HC
LK-0580CC
LK-0880HH
LK-0880CH
LK-1080HH
LK-1080CH
LK-1580HH
LK-1580CH
LK-2080CH

Model Number Nomenclature
— 2 —
Model Number Nomenclature ............................................................................................................................... 2
General Data........................................................................................................................................................... 3
Performance Data .................................................................................................................................................. 6
Electrical Requirements ...................................................................................................................................... 16
Dimensions........................................................................................................................................................... 18
Wiring Diagram..................................................................................................................................................... 24
Trouble Shooting Guide ...................................................................................................................................... 33
Electric Parts Trouble Shooting Guide .............................................................................................................. 37
Feature of Controller........................................................................................................................................... 45
Exploded View and Replacement Parts List...................................................................................................... 50
Specification of Components.............................................................................................................................. 69
Table of contents
LK-08B0CH C: Convertible
H: Horizontal Flow
D: Down Flow
C: Cooling Only
H: Heat Pump
1 : 115/60/1
5 : 200-220/50/1
8 : 380-415/50/3
B : 220/60/3
2 : 220/60/1
6 : 220-240/50/1
9 : 380-415/60/3
C : 440-460/50/3
3 : 208-230/60/1
7 : 100/50(60)/1
A : 220/50/3
D : 440-460/60/3
03 : 3 ton
04 : 4 ton
05 : 5 ton
06 : 6.25 ton
08 : 7.5 ton
09 : 8.5 ton
10 : 10 ton
13 : 12.5 ton
15 : 15 ton
18 : 17.5 ton
20 : 20 ton
25 : 25 ton
Development Sequence
Nominal cooling capacity
LG
Single Package Air Conditioner
Model Number Nomenclature

General Data
— 3 —
Table-1
Nominal ton (Ton) 5 7.5 10
Models LK-0580CC LK-0880CH LK-1080CH
Electrical Data ARI Net Cooling Capacity (BTU/hr) 54,500 78,000 106,000
(W) 15,972 22,859 31,065
(Kcal/h ) 13,735 19,657 26,714
Voltage (V,PH) 380/415V,3PH
M.C.A(with standard motor) Cooling (Amps) 12.5 20 30
Power Input Cooling (Watt) 5,700 8,500 12,000
Performance Air Circulation Nominal CFM CFM 2,000 2,600 3,400
EER Cooling (BTU/hr.W) 9.6 9.2 8.8
Sound Rating Cooling bell 8.8 8.8 9.2
Features Wired Remote Controller
 (Accessory) (Accessory) (Accessory)
Time Delay Safety Function
 
Cooling Operation Mode
 
Heating Operation Mode(with E/Heater)
 
Soft Dry Operation
 
Timer Setting (24-Hour on/off)
 
Auto rastart mode


Humidifier function


Test function


Self-Diagnosis Function


Filter type - washable & Anti-fungus washable & Anti-fungus
Compressor Type Reciprocating Reciprocating Reciprocating
Quantity 112
Outdoor Coil Type High efficiency High efficiency High efficiency
Tube size(O.D) (inch) 0.375 0.375 0.375
(mm) 9.52 9.52 9.52
Row/FPI 2R/19FPI 2R/16FPI 2R/16FPI
Lengh (inch) 54.3 55.9 66.9
(mm) 1,380 1,420 1,700
Face area (sq.ft) 12.07 12.42 17.66
(mm3) 1.12 1.15 1.64
Indoor Coil Type High efficiency High efficiency High efficiency
Tube size(O.D) (inch) 0.375 0.375 0.375
(mm) 9.52 9.52 9.52
Row/FPI 3R/16FPI 2R/16FPI 3R/16FPI
Lengh (inch) 18.3 42.1 37.9
(mm) 465 1,070 963
Face area (sq.ft) 4.83 7.61 9.48
(mm3) 0.45 0.71 0.88
Outdoor Fan Type Propeller Propeller Propeller
No. Used/Diameter(in.) 2EA/18" 1EA/24" 1EA/26"
Drive Type Direct Direct Direct
CFM 3,300 4,000 6,400
No. Motor/Motor output(Hp) 2/0.15 1/0.5 1/1.3
Motor RPM 930 950 950
Indoor Fan Type Centrifugal Blower Fan
No. Used 1EA 1EA 1EA
Diameter/Width(in.) 11"/11" 13"/13" 15"/11"
Drive Type/Motor Step Direct/2 Belt/1 Belt/1
No.motors 1EA 1EA 1EA
Motor output(standard/oversized) 0.3Hp/N.A 1.5Hp/3.0Hp 3.0Hp/N.A
Motor rpm(Standard/oversized) 920/N.A 1440/1440 1440/N.A
Drain Connection Size(in.) 3/4" 3/4" 3/4
Dimensions Indoor unit (WxHxD) (mm) 1,280*1,065*1,110 2,170*890*1,159 2,170*1,050*1,550
Weight net (kg) 220 280 330
(lbs) 485 617 728
1) Test Condition of ARI Rated Cooling Capacity :
Ambient:95°F , Air entering temprature : 80°F DB and 67°F WB
2) ARI standard
210/240 or 360 for EER
270 for Sound
3) The supply of filters is standard.
COOLING ONLY

Table-2
— 4 —
Nominal ton (Ton) 15 20
Models LK-1580CH LK-2080CH
Electrical Data ARI Net Cooling Capacity (BTU/hr) 159,000 224,000
(W) 46,598 65,648
(Kcal/h ) 40,071 56,452
Voltage (V,PH) 380/415V, 3PH
M.C.A(with standard motor) Cooling (Amps) 41.9 53.8
Power Input Cooling (Watt) 17,200 24,800
Performance Air Circulation Nominal CFM CFM 5,300 8,000
EER Cooling (BTU/hr.W) 9.2 9
Sound Rating Cooling bell 9.2 9.2
Features Wired Remote Controller (Accessory) (Accessory)
Time Delay Safety Function 
Cooling Operation Mode 
Heating Operation Mode(with E/Heater) 
Soft Dry Operation 
Timer Setting (24-Hour on/off) 
Auto rastart mode 
Humidifier function 
Test function 
Self-Diagnosis Function 
Filter type washable & Anti-fungus washable & Anti-fungus
Compressor Type Reciprocating Reciprocating
Quantity 22
Outdoor Coil Type High efficiency High efficiency
Tube size(O.D) (inch) 0.375 0.375
(mm) 9.52 9.52
Row/FPI 2R/16FPI 2R/16FPI
Lengh (inch) 85 78.7
(mm) 2,160 2,000
Face area (sq.ft) 25.98 32.81
(mm3) 2.41 3.05
Indoor Coil Type High efficiency High efficiency
Tube size(O.D) (inch) 0.375 0.375
(mm) 9.52 9.52
Row/FPI 2R/16FPI 2R/16FPI
Lengh (inch) 55.1 55.9
(mm) 1,400 1,420
Face area (sq.ft) 16.08 23.29
(mm3) 1.49 2.16
Outdoor Fan Type Propeller Propeller
No. Used/Diameter(in.) 2EA/24" 2EA/26"
Drive Type Direct Direct
CFM 9,000 12,500
No. Motor/Motor output(Hp) 2/0.5 2/1.3
Motor RPM 950 950
Indoor Fan Type Centrifugal Blower Fan
No. Used 1EA 1EA
Diameter/Width(in.) 15"/15" 18"/18"
Drive Type/Motor Step Belt/1 Belt/1
No.motors 1EA 1EA
Motor output(standard/oversized) 4.0Hp/5.0Hp 5Hp/7.5Hp
Motor rpm(Standard/oversized) 1440/2980 2980/2980
Drain Connection Size(in.) 1" 1"
Dimensions Indoor unit (WxHxD) (mm) 2,438*1,230*1,766 2,774*1,660*1,880
Weight net (kg) 530 820
(lbs) 1168 1808
1) Test Condition of ARI Rated Cooling Capacity :
Ambient:95°F , Air entering temprature : 80°F DB and 67°F WB
2) ARI standard
210/240 or 360 for EER
270 for Sound
3) The supply of filters is standard.
COOLING ONLY

— 5 —
Table-3
1) Test Condition of ARI Rated Cooling Capacity : Ambient:95°F , Air entering temprature : 80°F DB and 67°F WB
Test Condition of Heating Capacity : ➀Outdoor entering Temperature : 44.6°F DB and 42.8°F WB95°F
➁Indoor Air entering temprature : 68°F DB and 59°F WB
2) ARI standard
210/240 or 360 for EER
270 for Sound
3) The supply of filters is standard.
Nominal ton (Ton) 5 7.5 10 15
Models LK-0580HC LK-0880HH LK-1080HH LK-1580HH
Capacity ARI Net Cooling Capacity (BTU/hr) 53,000 73,000 100,000 152,000
(W) 15,533 21,394 29,307 44,547
(Kcal/h) 13,357 18,397 25,202 38,306
Heating Capacity (BTU/hr) 53,000 73,000 92,000 150,000
(W) 15,533 21,394 26,962 43,961
(Kcal/h) 13,357 18,397 23,185 37,802
Electrical Data Voltage (V,PH) 380/415V,3PH
M.C.A(with standard motor) Cooling (Amps) 12.5 20 27 40.6
Heating (Amps) 10.6 18.2 24.5 36.9
Power Input Cooling (Watt) 5,700 8,500 12,000 17,000
Heating (Watt) 4,750 7,100 9,800 14,300
Performance Air Circulation Nominal CFM CFM 2,000 2,600 3,400 5,300
EER Cooling (BTU/hr.W) 9.3 8.6 8.3 8.9
Heating (BTU/hr.W) 11.2 10.3 9.4 10.5
Sound Rating bell 8.8 8.8 9.2 9.2
Features Wired Remote Controller 
Time Delay Safety Function 
Cooling Operation Mode 
Heating Operation Mode(with E/Heater) 
Soft Dry Operation 
Timer Setting (24-Hour on/off) 
Auto rastart mode 
Humidifier function 
Test function 
Defrost 
Hot Start 
Self-Diagnosis Function 
Filter type -
washable & Anti-fungus washable & Anti-fungus washable & Anti-fungus
Compressor Type Reciprocating Reciprocating Reciprocating Reciprocating
Quantity 1122
Outdoor Coil Type High efficiency High efficiency High efficiency High efficiency
Tube size(O.D) (inch) 0.375 0.375 0.375 0.375
(mm) 9.52 9.52 9.52 9.52
Row/FPI 2R/19FPI 2R/16FPI 2R/16FPI 2R/16FPI
Lengh (inch) 54.3 55.9 66.9 85
(mm) 1,380 1,420 1,700 2,160
Face area (sq.ft) 12.07 12.42 17.66 25.98
(mm3) 1.12 1.15 1.64 2.41
Indoor Coil Type High efficiency High efficiency High efficiency High efficiency
Tube size(O.D) (inch) 0.375 0.375 0.375 0.375
(mm) 9.52 9.52 9.52 9.52
Row/FPI 3R/16FPI 2R/16FPI 2R/16FPI 2R/16FPI
Lengh (inch) 18.3 42.1 37.9 55.1
(mm) 465 1,070 963 1,400
Face area (sq.ft) 4.83 7.61 9.48 16.08
(mm3) 0.45 0.71 0.88 1.49
Outdoor Fan Type Propeller Propeller Propeller Propeller
No. Used/Diameter(in.) 2EA/18" 1EA/26" 1EA/26" 2EA/26"
Drive Type Direct Direct Direct Direct
CFM 3,300 5,900 6,400 9,000
No. Motor/Motor output(Hp) 2/0.15 1/0.5 1/1.3 2/1.3
Motor RPM 930 950 950 950
Indoor Fan Type Centrifugal Blower Fan
No. Used 1EA 1EA 1EA 1EA
Diameter/Width(in.) 11"/11" 13"/13" 15"/11" 15"/15"
Drive Type/Motor Step Direct/2 Belt/1 Belt/1 Belt/1
No.motors 1EA 1EA 1EA 1EA
Motor output(standard/oversized) 0.3Hp/N.A 1.5Hp/3.0Hp 3.0Hp/N.A 4.0Hp/5.0Hp
Motor rpm(Standard/oversized) 920/N.A 1440/1440 1440/N.A 1440/2980
Drain Connection Size(in.) 3/4 3/4 3/4 1
Dimensions Indoor unit (WxHxD) (mm) 1,280*1,065*1,110 2,170*890*1,159 2,170*1,050*1,550 2,438*1,230*1,766
Weight net (kg) 220 280 330 530
(lbs) 485 617 728 1168
HEAT-PUMP

Performance data
— 6 —
Table-1 Supply Fan Performance LK-0580HC/0580CC(SI)
• Fan motor heat = 2 x BkW
• Test Condition: ➊ Voltage : 380V
❷Operating Mode: Fan operation mode with clean filter, dry coil, without electric heater.
L/s High Speed
ESP BkW
802
849
897
944
991
1038
1085
1133
22.27
19.68
17.09
14.49
11.90
9.30
6.71
4.12
0.38
0.41
0.45
0.48
0.52
0.56
0.59
0.63
21.19
17.25
13.32
9.39
5.46
1.53
-
-
0.33
0.37
0.40
0.43
0.47
0.50
-
-
7.52
0.75
-
-
-
-
-
-
0.38
0.42
-
-
-
-
-
-
ESP BkW ESP BkW
Mid Speed Low Speed
Table-2 Supply Fan Performance LK-0580HC/0580CC (English)
• Fan motor heat(MBH)= 5.09 x Fan Bhp
• Test Condition: ➊ Voltage :380V
❷Operating Mode: Fan operation mode with clean filter, dry coil, without electric heater.
CFM High Speed
ESP BHP
1,700
1,800
1,900
2,000
2,100
2,200
2,300
2,400
0.85
0.77
0.67
0.57
0.51
0.41
0.26
0.11
0.54
0.55
0.59
0.65
0.67
0.72
0.80
0.89
0.79
0.68
0.59
0.37
0.23
0.06
-
-
0.44
0.49
0.54
0.58
0.63
0.67
-
-
0.30
0.03
-
-
-
-
-
-
0.51
0.56
-
-
-
-
-
-
ESP BHP ESP BHP
Mid Speed Low Speed

— 7 —
Table-3 Supply Fan Performance LK-0880HH/0880CH (SI)
External Static Pressure(inches of water)
L/s 2.5 5.1 7.6 10.2 12.7 15.2 17.8 20.3 22.9 25.4 31.8 38.1
RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW
982
1104
1227
1350
1472
645
676
711
749
792
0.19
0.31
0.45
0.62
0.81
668
699
734
773
815
0.24
0.36
0.5
0.66
0.85
691
722
757
796
838
0.28
0.4
0.55
0.71
0.9
714
746
781
819
861
0.33
0.45
0.59
0.76
0.94
738
769
804
842
885
0.38
0.5
0.64
0.8
0.99
761
792
827
866
908
0.42
0.54
0.68
0.85
1.04
784
815
850
889
931
0.47
0.59
0.73
0.89
1.08
807
838
873
912
954
0.51
0.63
0.77
0.94
1.13
830
862
897
935
977
0.56
0.68
0.82
0.98
1.17
854
885
920
958
1001
0.6
0.72
0.87
1.03
1.22
912
943
978
1016
1059
0.72
0.84
0.98
1.14
1.33
970
1001
1036
1074
1117
0.83
0.95
1.09
1.26
1.45
1.5 STANDARD MOTOR & DRIVE
3Hp OVERSIZE MOTOR & DRIVE
Table-4 Supply Fan Performance LK-0880HH/0880CH (English)
External Static Pressure(inches of water)
CFM 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.25 1.5
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2080
2340
2600
2860
3120
645
676
711
749
792
0.26
0.42
0.61
0.83
1.08
668
699
734
773
815
0.32
0.48
0.67
0.89
1.14
691
722
757
796
838
0.38
0.54
0.73
0.95
1.2
714
746
781
819
861
0.44
0.6
0.79
1.01
1.27
738
769
804
842
885
0.5
0.66
0.85
1.07
1.33
761
792
827
866
908
0.56
0.73
0.92
1.14
1.39
784
815
850
889
931
0.63
0.79
0.98
1.2
1.45
807
838
873
912
954
0.69
0.85
1.04
1.26
1.51
830
862
897
935
977
0.75
0.91
1.1
1.32
1.57
854
885
920
958
1001
0.81
0.97
1.16
1.38
1.63
912
943
978
1016
1059
0.96
1.12
1.31
1.53
1.79
970
1001
1036
1074
1117
1.12
1.28
1.47
1.69
1.94
1.5 STANDARD MOTOR & DRIVE
3Hp OVERSIZE MOTOR & DRIVE
Table-5 Fan speed Data LK-0880HH/0880CH
Standard Motor & Drive
Fan Speed
Over size Motor & Drive
Fan Speed
6 Turn Open
644 694 745 795 845 896 946
751 810 869 928 986 1045 1104
5 Turn Open 4 Turn Open 3 Turn Open 2 Turn Open 1 Turn Open Closed
•Factory set at 3 turns open.
•Fan motor heat(MBH)= 1.28 x Fan BkW
•Test Condition: ➊ Voltage : 380V
❷Operating Mode: Fan operation mode with clean filter, dry coil, without electric heater.
•Fan motor heat(kW)= 3.26 x Fan Bhp
•Test Condition: ➊ Voltage : 380V
❷Operating Mode: Fan operation mode with clean filter, dry coil, without electric heater.

— 8 —
Table-6 Supply Fan Performance LK-1080HH/1080CH (English)
External Static Pressure(inches of water)
CFM 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
External Static Pressure(inches of water)
CFM 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
609
640
676
718
765
0.53
0.75
1.01
1.31
1.65
615
645
682
723
771
0.53
0.80
1.06
1.35
1.70
623
653
689
731
779
0.62
0.84
1.10
1.40
1.74
632
662
698
740
788
0.67
0.89
1.15
1.44
1.79
642
672
708
750
798
0.72
0.93
1.19
1.49
1.83
653
684
720
761
809
0.76
0.98
1.24
1.54
1.88
665
696
732
774
822
0.81
1.02
1.28
1.58
1.92
678
709
745
787
835
0.85
1.07
1.33
1.63
1.97
693
723
759
801
849
0.90
1.11
1.37
1.67
2.01
707
738
774
816
864
0.94
1.16
1.42
1.72
2.06
722.9
753.4
789.4
831.3
879.3
0.99
1.21
1.46
1.76
2.10
739
770
806
848
896
1.03
1.25
1.51
1.81
2.15
2720
3060
3400
3740
4080
756
787
823
865
913
1.08
1.30
1.55
1.85
2.20
774
804
840
882
930
1.12
1.34
1.60
1.90
2.24
792
823
859
901
949
1.17
1.39
1.64
1.94
2.29
811
842
878
920
968
1.21
1.43
1.69
1.99
2.33
831
861
897
939
987
1.26
1.48
1.73
2.03
2.38
851
881
917
959
1007
1.30
1.52
1.78
2.08
2.42
872
902
938
980
1028
1.35
1.57
1.82
2.12
2.47
893
923
959
1001
–
1.39
1.61
1.87
2.17
–
2720
3060
3400
3740
4080
3Hp STANDARD MOTOR & DRIVE
3Hp STANDARD MOTOR & DRIVE
3Hp STANDARD MOTOR & HIGH STATIC DRIVE
•Fan motor heat(MBH)= 3.1 x Fan Bhp
•Test Condition: ➊ Voltage : 380V
❷Operating Mode: Fan operation mode with clean filter, dry coil, without electric heater.

— 9 —
Table-7 Evaporator Fan Performance LK-1080HH/1080CH (SI)
External Static Pressure(mm aq.)
L/s 2.5 5.1 7.6 10.2 12.7 15.2 17.8 20.3 22.9 25.4 27.9 30.5
RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW
External Static Pressure(mm aq.)
L/s 33.0 35.6 38.1 40.6 43.2 45.7 48.3 50.8
RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW
609
640
676
718
765
0.40
0.56
0.75
0.98
1.23
615
645
682
723
771
0.43
0.59
0.79
1.01
1.27
623
653
689
731
779
0.47
0.63
0.82
1.04
1.30
632
662
698
740
788
0.50
0.66
0.85
1.08
1.33
642
672
708
750
798
0.53
0.70
0.89
1.11
1.37
653
684
720
761
809
0.57
0.73
0.92
1.15
1.40
665
696
732
774
822
0.60
0.76
0.96
1.18
1.43
678
709
745
787
835
0.63
0.80
0.99
1.21
1.47
693
723
759
801
849
0.67
0.83
1.02
1.25
1.50
707
738
774
816
864
0.70
0.86
1.06
1.28
1.54
722.9
753.4
789.4
831.3
879.3
0.74
0.90
1.09
1.31
1.57
739
770
806
848
896
0.77
0.93
1.12
1.35
1.60
1284
1444
1605
1765
1925
756
787
823
865
913
0.80
0.97
1.16
1.38
1.64
774
804
840
882
930
0.84
1.00
1.19
1.42
1.67
792
823
859
901
949
0.87
1.03
1.23
1.45
1.70
811
842
878
920
968
0.90
1.07
1.26
1.48
1.74
831
861
897
939
987
0.94
1.10
1.29
1.52
1.77
851
881
917
959
1007
0.97
1.13
1.33
1.55
1.81
872
902
938
980
1028
1.10
1.17
1.36
1.58
1.84
893
923
959
1001
–
1.04
1.20
1.39
1.62
–
1284
1444
1605
1765
1925
3Hp STANDARD MOTOR & DRIVE
3Hp STANDARD MOTOR & DRIVE
3Hp STANDARD MOTOR & HIGH STATIC DRIVE
Table-8 Fan speed Data 1080HH/1080CH
Standard Motor & Drive
Fan Speed
Standard Motor & High Static
Drive Accessory Fan Speed
6 Turn Open
576 615 655 694 734 773 813
742 793 843 894 945 996 1046
5 Turn Open 4 Turn Open 3 Turn Open 2 Turn Open 1 Turn Open Closed
•Factory set at 3 turns open.
•Fan motor heat(kW)= 1.22 x Fan BkW
•Test Condition: ➊ Voltage : 380V
❷Operating Mode: Fan operation mode with clean filter, dry coil, without electric heater.

— 10 —
Table-9 Evaporator Fan Performance LK-1580CH/1580HH (English)
External Static Pressure(inches of water)
CFM 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
External Static Pressure(inches of water)
CFM 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
-
643
686
736
794
-
1.56
2.06
2.64
3.31
624
660
703
753
811
1.21
1.63
2.13
2.72
3.39
641
677
720
770
827
1.28
1.71
2.21
2.79
3.46
658
694
737
787
844
1.36
1.78
2.28
2.87
3.54
674
711
754
804
861
1.43
1.86
2.36
2.94
3.61
691
728
771
821
878
1.51
1.93
2.43
3.02
3.69
708
745
788
838
895
1.58
2.01
2.51
3.09
3.76
725
761
804
854
912
1.66
2.08
2.58
3.17
3.84
742
778
821
871
929
1.73
2.16
2.66
3.24
3.91
759
795
838
888
945
1.81
2.23
2.73
3.32
3.99
775
812
855
905
962
1.88
2.31
2.81
3.39
4.06
792
829
872
922
979
1.95
2.38
2.88
3.47
4.14
4240
4770
5300
5830
6360
809
846
889
939
996
2.03
2.46
2.96
3.54
4.21
826
862
905
955
1013
2.10
2.53
3.03
3.62
4.29
843
879
922
972
1030
2.18
2.60
3.11
3.69
4.36
860
896
939
989
1046
2.25
2.68
3.18
3.77
4.44
877
913
956
1006
1063
2.33
2.75
3.26
3.84
4.51
893
930
973
1023
1080
2.40
2.83
3.33
3.92
4.59
910
947
990
1040
1097
2.48
2.90
3.41
3.99
4.66
927
964
1007
1057
1114
2.55
2.98
3.48
4.07
4.74
4240
4770
5300
5830
6360
4Hp STANDARD MOTOR & DRIVE
4Hp STANDARD MOTOR & DRIVE
4Hp STANDARD MOTOR & HIGH STATIC DRIVE
5Hp OVER SIZE MOTOR & DRIVE
•Fan motor heat(MBH)= 3.1 x Fan Bhp
•Test Condition: ➊ Voltage : 380V
❷Operating Mode: Fan operation mode with clean filter, dry coil, without electric heater.

— 11 —
Table-10 Evaporator Fan Performance LK-1580HH/1580CH (SI)
4Hp STANDARD MOTOR & HIGH STATIC DRIVE
5Hp OVER SIZE MOTOR & DRIVE
External Static Pressure(mm aq.)
L/s 2.5 5.1 7.6 10.2 12.7 15.2 17.8 20.3 22.9 25.4 27.9 30.5
RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW
External Static Pressure(mm aq.)
L/s 33.0 35.6 38.1 40.6 43.2 45.7 48.3 50.8
RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW
-
643
686
736
794
-
1.16
1.54
1.97
2.47
624
660
703
753
811
0.90
1.22
1.59
2.03
2.53
641
677
720
770
827
0.96
1.27
1.65
2.08
2.58
658
694
737
787
844
1.01
1.33
1.7
2.14
2.64
674
711
754
804
861
1.07
1.38
1.76
2.2
2.69
691
728
771
821
878
1.12
1.44
1.82
2.25
2.75
708
745
788
838
895
1.18
1.50
1.87
2.31
2.81
725
761
804
854
912
1.23
1.55
1.93
2.36
2.86
742
778
821
871
929
1.29
1.61
1.98
2.42
2.92
759
795
838
888
945
1.35
1.66
2.04
2.47
2.97
775
812
855
905
962
1.40
1.72
2.09
2.53
3.03
792
829
872
922
979
1.46
1.78
2.15
2.59
3.09
2001
2251
2501
2751
3002
809
846
889
939
996
1.51
1.83
2.21
2.64
3.14
826
862
905
955
1013
1.57
1.89
2.26
2.70
3.2
843
879
922
972
1030
1.63
1.94
2.32
2.75
3.25
860
896
939
989
1046
1.68
2.00
2.37
2.81
3.31
877
913
956
1006
1063
1.74
2.05
2.43
2.86
3.36
893
930
973
1023
1080
1.79
2.11
2.49
2.92
3.42
910
947
990
1040
1097
1.85
2.17
2.54
2.98
3.48
927
964
1007
1057
1114
1.90
2.22
2.6
3.03
3.53
2001
2251
2501
2751
3002
Table-11 Fan speed Data LK-1580CH/1580HH
Standard Motor & Drive
Fan Speed
Standard Motor & High Static
Drive Accessory Fan Speed
Over Size Motor &
Drive Fan Speed
6 Turn Open
610 562 694 735 777 819 861
742 793 843 894 945 996 1,046
882 942 1,002 1,063 1,123 1,183 1,244
5 Turn Open 4 Turn Open 3 Turn Open 2 Turn Open 1 Turn Open 0 Turn Open
•Factory set at 3 turns open.
•Fan motor heat(kW)= 1.22 x Fan BkW
•Test Condition: ➊ Voltage : 380V
❷Operating Mode: Fan operation mode with clean filter, dry coil, without electric heater.

— 12 —
Table-12 Evaporator Fan Performance LK-2080CH (English)
External Static Pressure(inches of water)
CFM 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
External Static Pressure(inches of water)
CFM 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
-
-
-
507
559
-
-
-
2.72
3.74
-
-
488
538
587
-
-
2.00
2.90
3.90
-
-
517
565
613
-
-
2.23
3.15
4.24
-
497
544
590
637
-
1.68
2.47
3.40
4.51
477
522
568
614
660
1.18
1.88
2.70
3.66
4.79
502
545
590
636
682
1.34
2.06
2.93
3.93
5.08
526
567
611
656
702
1.51
2.23
3.13
4.17
5.36
549
589
631
675
721
1.68
2.42
3.32
4.40
5.64
573
610
651
694
739
1.87
2.61
3.52
4.62
5.89
598
638
670
712
756
2.08
2.80
3.72
4.83
6.13
620
649
687
728
772
2.30
3.02
3.94
5.05
6.37
644
671
706
745
787
2.50
3.25
4.16
5.28
6.61
6400
7200
8000
8800
9600
666
693
724
763
804
2.70
3.48
4.38
5.51
6.94
687
713
741
778
818
2.89
3.72
4.62
5.75
7.09
709
736
763
797
836
3.11
3.94
4.88
5.99
7.34
731
756
783
814
852
3.34
4.17
5.14
6.24
7.59
753
774
803
831
862
3.57
4.39
5.40
6.50
7.85
773
793
822
849
880
3.80
4.62
5.66
6.79
8.14
793
813
840
869
900
4.03
4.86
5.91
7.07
8.42
812
833
858
887
918
4.27
5.12
6.16
7.28
863
6400
7200
8000
8800
9600
5Hp STANDARD MOTOR & DRIVE
5Hp STANDARD MOTOR & DRIVE
5Hp STANDARD MOTOR & HIGH STATIC DRIVE
7.5Hp OVER SIZE MOTOR & DRIVE
•Fan motor heat(MBH)= 3.1 x Fan Bhp
•Test Condition: ➊ Voltage : 380V
❷Operating Mode: Fan operation mode with clean filter, dry coil, without electric heater.
•Do not operate the unit at a cooling airflow that is less then 350cfm/1.2MBH.

— 13 —
Table-13 Evaporator Fan Performance LK-2080CH (SI)
5Hp STANDARD MOTOR & HIGH STATIC DRIVE
7.5Hp OVER SIZE MOTOR & DRIVE
External Static Pressure(mm aq.)
L/s 2.5 5.1 7.6 10.2 12.7 15.2 17.8 20.3 22.9 25.4 27.9 30.5
RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW
External Static Pressure(mm aq.)
L/s 33.0 35.6 38.1 40.6 43.2 45.7 48.3 50.8
RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW RPM BkW
-
-
-
507
559
-
-
-
2.03
2.79
-
-
488
538
587
-
-
1.49
2.16
2.91
-
-
517
565
613
-
-
1.66
2.35
3.16
-
497
544
590
637
-
1.25
1.84
2.54
3.36
477
522
568
614
660
0.88
1.40
2.01
2.73
3.57
502
545
590
636
682
1.00
1.54
2.18
2.93
3.79
526
567
611
656
702
1.13
1.66
2.33
3.11
4.00
549
589
631
675
721
1.25
1.80
2.48
3.28
4.21
573
610
651
694
739
1.39
1.95
2.62
3.45
4.39
598
638
670
712
756
1.55
2.09
2.77
3.60
4.57
620
649
687
728
772
1.72
2.25
2.94
3.77
4.75
644
671
706
745
787
1.86
2.42
3.10
3.94
4.93
3020
3398
3776
4153
4531
666
693
724
763
804
2.01
2.6
3.27
4.11
5.18
687
713
741
778
818
2.16
2.77
3.45
4.29
5.29
709
736
763
797
836
2.32
2.94
3.64
4.47
5.47
731
756
783
814
852
2.49
3.11
3.83
4.65
5.66
753
774
803
831
862
2.66
3.27
4.03
4.85
5.85
773
793
822
849
880
2.83
3.45
4.22
5.06
6.07
793
813
840
869
900
3.01
3.62
4.41
5.27
6.28
812
833
858
887
918
3.18
3.82
4.59
5.43
6.44
3020
3398
3776
4153
4531
Table-14 Fan speed Data LK-2080CH
•Factory set at 3 turns open.
•Fan motor heat(kW)= 1.22 x Fan BkW
•Test Condition: ➊ Voltage : 380V
❷Operating Mode: Fan operation mode with clean filter, dry coil, without electric heater.
•Do not operate the unit at a cooling airflow that is less then 350cfm/1.2MBH.
Standard Motor & Drive
Fan Speed
Standard Motor & High Static
Drive Accessory Fan Speed
Over Size Motor &
Drive Fan Speed
6 Turn Open
492 525 557 590 623 655 688
636 678 720 763 805 847 890
749 798 848 898 948 998 1048
5 Turn Open 4 Turn Open 3 Turn Open 2 Turn Open 1 Turn Open 0 Turn Open

— 14 —
Table-15 Accessory Static Pressure Drops
Unit Model No.
LK-0580HC
LK-0580CC
LK-0880HH
LK-0880CH
LK-1080HH
LK-1080CH
LK-1580CH
LK-1580HH
LK-2080CH
cfm L/s
1600
2000
2400
2340
2600
2860
2720
3420
4080
4240
5300
6360
6400
8000
9600
755
944
1130
982
1227
1472
1284
1605
1705
2001
2501
3002
3020
3776
4531
0.03 0.76 0.02 0.51 - 0.02 0.51 0.03 0.76 - -
0.05 1.27 0.03 0.76 - 0.04 1.02 0.06 1.52 - -
0.07 1.78 0.04 1.02 - 0.05 1.27 0.09 2.29 - -
0.04 1.02 - 0.01 0.25 - - 0.02 0.51 0.04 1.02
0.08 2.03 - 0.01 0.25 - - 0.03 0.76 0.07 1.78
0.12 3.05 - 0.02 0.51 - - 0.04 1.02 0.10 2.54
0.06 1.52 - 0.01 0.25 - - 0.07 1.78 0.1 2.54
0.10 2.54 - 0.01 0.25 - - 0.10 2.54 0.13 3.30
0.14 3.30 - 0.02 0.51 - - 0.15 2.81 0.18 4.57
0.06 1.52 - - - - 0.04 1.02 0.04 1.02
0.09 2.29 - - - - 0.06 1.52 0.07 1.78
0.13 3.30 - - - - 0.1 2.54 0.11 2.79
0.07 1.78 - - - - - 0.07 1.78
0.1 2.57 - - - - - 0.13 3.30
0.14 3.56 - - - - - 0.17 4.32
Standard
Filter
Electric Heater
5KW 9KW 10KW 15KW 18KW 36KW
in Aq mm Aq in Aq mm Aq in Aq mm Aq in Aq mm Aq in Aq mm Aq in Aq mm Aq in Aq mm Aq
Table-16 Electric Heating Capacity
MODEL
LK-0580HC
LK-0580CC
LK-0880HH
LK-0880CH
LK-1080HH
LK-1080CH
LK-1580CH
LK-1580HH
LK-2080CH
Input(KW)
5
10
15
9
18
36
9
18
36
18
36
36
17.07
34.14
68.28
30.72
61.43
122.86
30.72
61.43
122.86
61.43
122.86
245.72
1
1
1
1
1
2
1
1
2
1
2
2
5
10
15
9
18
18
9
18
18
18
18
18
-
-
-
-
-
18
-
-
18
-
18
18
-
-
-
-
-
61.43
-
-
61.43
-
61.43
61.43
17.07
34.14
68.28
30.72
61.43
61.43
30.72
61.43
61.43
61.43
61.43
61.43
Output(MBH)
Total No. of Stages Stage 1 Stage 2
Input(kw) Output(MBH) Input(kw) Output(MBH)
Note: 1. The output ratings shown above is at 240V.
For other voltage, Output = Capacity Multiplier x Rated Output
2. E/heater Voltage range is 380~415V. Voltage
380
400
415
Capacity Multiplier
0.84
0.92
1.0
< Correction Coefficent >

— 15 —
Table-17 Air Temperature Rise Across Electric Heater(°F)
•Temp. Rise across Electric Heater = (KW x 3413)
(1.08 x CFM)
•If you want to take temp rise at different airflow use above equation.
-
10.9
-
21.9
32.7
Capacity
5KW
9KW
10KW
18KW
36KW
1
1
1
1
2
7.9
-
15.8
-
-
-
14.3
-
28.5
42.9
-
-
-
10.7
21.5
-
-
-
-
14.2
Stage
LK-0580HC/0580CC
(2000CFM) LK-0880HH/0880CH
(2600CFM) LK-1080HH/1080CH (3400CFM) LK-1580CH/1580HH (5300CFM) LK-2080B0CC (8000CFM)

Electrical Requirements
— 16 —
Table-18 Electrical Data Unit wiring
5LK-0580HC 342~456 12.5 25 25 - - -
LK-0580CC 12.5 25 25 - - -
7.5 LK-0880HH 342~456 20 25 25 23 25 25
LK-0880CH 20 25 25 23 25 25
10 LK-1080HH 342~456 27 35 35 - - -
LK-1080CH 30 35 35 - - -
15 LK-1580HH 342-456 40.6 60 60 43 60 60
LK-1580CH 41.9 60 60 45 60 60
20 LK-2080CH 342-456 53.8 70 70 62 80 80
Tons MODEL
Unit Operating
Voltage Range
Standard indoor fan motor Oversized indoor fan motor
M.C.A. M.F.S. M.C.B M.C.A. M.F.S. M.C.B
Table-19 Electrical Data Unit wiring with electric heater.
LK-0580HC 5 21 25 25 - - -
LK-0580CC 10 28 35 35 - - -
LK-0880HH 9 32.5 45 45 35.5 45 45
LK-0880CH 18 45 60 60 48 60 60
36 58 70 70 61 70 70
9 42.5 45 45 - - -
LK-1080HH 18 55 60 60 - - -
36 68 70 70 - - -
9 40.5 45 45 - - -
LK-1080CH 18 52 60 60 - - -
36 65 70 70 - - -
LK-1580CH 18 58 70 70 60 70 70
36 71 90 90 73 90 90
LK-1580HH 18 58 70 70 60 70 70
36 71 90 90 73 90 90
LK-2080HH 36 72 90 90 77 90 90
Tons MODEL
Unit Operating
Voltage Range
Standard indoor fan motor Oversized indoor fan motor
M.C.A. M.F.S. M.C.B M.C.A. M.F.S. M.C.B
Note: Heater kW ratings are at 380/415 V unit.
3Ø,380/415V,
50Hz
3Ø,380/415V,
50Hz
3Ø,380/415V,
50Hz
3Ø,380/415V,
50Hz
3Ø,380/415V,
50Hz
3Ø,380/415V,
50Hz
3Ø,380/415V,
50Hz

— 17 —
Table-20 Electrical characteristics --- Evaporator Fan Motor --- 50 Hz
LK-0580HC 1
380~415
3 0.75 1.9 2.5 - - - - - -
LK-0580CC
LK-0880HH 1
380~415 3 1.5 2.6 7.3 1
380~415
3 3 3.4 10.8
LK-0880CH
LK-1080HH 1
380~415 3 3 3.4 10.8 - - - - - -
LK-1080CH
LK-1580HH 1
380~415 3 4 6.5 26 1 380~415 3 5 7.1 42
LK-1580CH
LK-2080CH 1
380~415 3 5 7.1 42 1 380~415 3 7.5 11.2 63
MODEL No volts Phase HP FLA LRA No volts Phase HP FLA LRA
Standard evaporator fan motor Oversized evaporator fan motor
Table-21 Electrical characteristics --- Compressor and Outdoor Fan Motor --- 50 Hz
LK-0580HC 1
380~415 3 6 9.2 79 2 220~240 1 0.15 1.5 10.8
LK-0580CC
LK-0880HH 1
380~415 3 8.5 15 115 1
220~240
1 1.3 6.2 19.5
LK-0880CH
380~415
3 0.5 1.5 2.3
LK-1080HH 2
380~415 3 6 9.2 79 1 380~415 1 1.3 6.2 19.5
LK-1080CH
LK-1580HH 2
380~415 3 8.5 15 115 1 220~240
1 1.3 6.2 19.5
LK-1580CH 3 0.5 1.5 2.3
LK-2080CH 2
380~415 3 12 21.6 126 1
220~240 1 1.3 6.2 19.5
MODEL No volts Phase HP FLA LRA No volts Phase HP FLA LRA
Compressor Outdoor Fan Motor

Dimensions
— 18 —
LK-0580CC/0580HC
UNITS LK-0580CC/0580HC
A
B
C
D
E
F
G
41.93(1065)
43.70(1110)
50.39(1280)
29.49(749)
9.65(245)
2.36(60)
2.76(70)
Unit: inch(mm)
UNITS LK-0580CC/0580HC
H
J
K
L
M
N
P
13.86(352)
9.21(234)
10.47(266)
3.86(98)
4.33(110)
22.28(566)
16.38(416)
Unit: inch(mm)
E
G
F
Center Line of Hole
A
B
CLEARANCE 34"
CLEARANCE 16"(HORIZONTAL)
CLEARANCE 32"(DOWNFLOW)
CLEARANCE 34"
1" Dia. Hole Control Wires
1.5" Dia. Hole Power Wires
1.5" Dia. Hole Other Purpose
CLEARANCE 46"
D
C
H
P
JKL
M
SUPPLY
RETURN
N

— 19 —
LK-0880CH/0880HH
UNITS LK-0880CH/0880HH
A
B
C
D
E
F
G
35.04(890)
46.93(1159)
85.43(2170)
10.43(265)
2.76(70)
2.36(60)
3.54(90)
Unit: inch(mm)
CG
F
DLE
1.5" Dia. Hole Power Wires
1.5" Dia. Hole Other Purpose
Center Line of Hole
1" Dia. Hole Control Wires
A
B
CLEARANCE 34" CLEARANCE 16"
CLEARANCE 34"
CLEARANCE 46"
UNITS LK-0880CH/0880HH
15.47(393)
16.18(411)
18.82(478)
2.40(61)
5.35(136)
26.89(683)
H
J
K
L
M
N
Unit: inch(mm)
HJ KL
NM
S
U
P
P
L
Y
R
E
T
U
R
N

— 20 —
LK-1080CH/1080HH
UNITS LK-1080CH/1080HH
A
B
C
D
E
F
G
41.34(1050)
48.89(1242)
85.43(2170)
55.0(1397)
6.10(155)
8.46(215)
10.43(265)
Unit: inch(mm)
E
GF
D
C
Center Line of Hole A
B
CLEARANCE 34"
CLEARANCE 46"
CLEARANCE 16"(HORIZONTAL)
CLEARANCE 34"
1" Dia. Hole Control Wires
1.5" Dia. Hole Power Wires
1.5" Dia. Hole Other Purpose
UNITS LK-1080CH/1080HH
16.06(408)
14.02(356)
20.16(512)
2.44(62)
2.01(51)
34.33(872)
H
J
K
L
M
N
Unit: inch(mm)
HJ KL
MN
S
U
P
P
L
Y
R
E
T
U
R
N