Gree GUHN24NK3HO User manual

T1/R410A/50Hz
(GC201510 - І )
U-MATCH AIR CONDITIONERS
SERVICE MANUAL

CONTENTS
PRODUCT ........................................................................................................................................................................2
1MODELS LIST ..........................................................................................................................................................2
1.1 Outdoor Unit.....................................................................................................................................................2
1.2 Indoor Unit........................................................................................................................................................3
2NOMENCLATURE ...................................................................................................................................................4
2.1 Outdoor Unit.....................................................................................................................................................4
2.2 Intdoor Unit.......................................................................................................................................................4
3PRODUCT DATA......................................................................................................................................................5
3.1 Product Data of Indoor Unit .........................................................................................................................5
3.2 Operation Range ...........................................................................................................................................11
3.3 Electrical Data................................................................................................................................................11
4PIPING DIAGRAM .................................................................................................................................................13
CONTROL ......................................................................................................................................................................15
1OPERATION FLOWCHART.................................................................................................................................15
1.1 Cooling/Dry Operation.................................................................................................................................15
1.2 Heating Operation.........................................................................................................................................16
2WIRELESS REMOTE CONTROLLER................................................................................................................17
2.1 Operation and Display View.......................................................................................................................17
3WIRED CONTROLLER.........................................................................................................................................19
3.1 Display View...................................................................................................................................................19
3.2 Operation View ..............................................................................................................................................21
4OPERATION INSTRUCTION OF SPECIAL FUNCTIONS...............................................................................24
5INSTALLATION OF WIRED CONTROLLER .....................................................................................................24
5.1 Standard Accessories..................................................................................................................................24
5.2 Installation Position and Requirement....................................................................................................24
5.3 Installation of Wired Controller .................................................................................................................25
5.4 Removal of Wired Controller......................................................................................................................26
6TROUBLESHOOTING ..........................................................................................................................................26
6.1 Display of Error Code...........................................................................................................................................26
7CENTRALIZED CONTROLLER ..........................................................................................................................27
7.1 Smart Zone Controller.................................................................................................................................27
7.2 Additional Special Functions.....................................................................................................................30
INSTALLATION..............................................................................................................................................................36
1INDOOR UNIT INSTALLATION ...........................................................................................................................36
1.1 Installation of Duct Type .............................................................................................................................36
1.2 Installation of Cassette Type......................................................................................................................46
2OUTDOOR UNIT INSTALLATION.......................................................................................................................55
2.1 Before Installation.........................................................................................................................................55
2.2 Installation Site..............................................................................................................................................56
2.3 Caution for Installation................................................................................................................................56
2.4 Dimension Data.............................................................................................................................................57
3REFRIGERATION PIPING WORK ......................................................................................................................58
3.1 Refrigeration Piping Work Procedures and Caution in Connecting................................................58
3.2 Specification of Connection Pipe .............................................................................................................62
4ELECTRIC WIRING WORK..................................................................................................................................63
4.1 Wiring Precautions.......................................................................................................................................63
4.2 Electrical Wiring............................................................................................................................................63
MAINTENANCE.............................................................................................................................................................70
1TROUBLE TABLE..................................................................................................................................................70
2FLOW CHART OF TROUBLESHOOTING.........................................................................................................72
2.1 Troubleshooting Flow Chart of Main Control Malfunction.................................................................72
2.2 Interface...........................................................................................................................................................78
3WIRING DIADRAM ................................................................................................................................................80

3.1 Outdoor unit...................................................................................................................................................80
3.2 Indoor unit ......................................................................................................................................................82
4. DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS............................................................85
4.1 Outdoor Unit...................................................................................................................................................85
4.2 Indoor Unit......................................................................................................................................................90
5EXPLODED VIEWS AND SPARE PART LIST...................................................................................................97
5.1 Outdoor Unit...................................................................................................................................................97
5.2 Indoor Unit....................................................................................................................................................109

U-Match Series Service Manual
1
PRODUCT

U-Match Series Service Manual
2
PRODUCT
1 MODELS LIST
1.1 Outdoor Unit
Model Name
Product Code
Power Supply
(V, Ph, Hz)
Appearance
GUHN18NK3HO
CF021W2090
220-240V~ 50Hz
GUHN24NK3HO
CF021W2100
220-240V~ 50Hz
GUHN30NK3HO
CF021W2110
220-240V~ 50Hz
GUHN36NM3HO
CF021W2080
380-415V 3N~ 50Hz
GUHN42NM3HO
CF021W2070
380-415V 3N~ 50Hz
GUHN48NM3HO
CF021W2060
380-415V 3N 50Hz
GUHN60NM3HO
CF021W2050
380-415V 3N~ 50Hz

U-Match Series Service Manual
3
1.2 Indoor Unit
Type
Model Name
Product Code
Nominal Capacity
Cooling/Heating
(kW)
Power
Supply
(V, Ph, Hz)
Appearance
Duct
Type
GFH18K3HI
CF022N0830
5.0/5.4
220-240V~ 50Hz
GFH18K3H1I
CF022N0840
5.0/5.4
220-240V~ 50Hz
GFH24K3HI
CF022N0880
7.0/7.4
220-240V~ 50Hz
GFH24K3H1I
CF022N0870
7.0/7.4
GFH30K3HI
CF022N0850
8.3/8.8
GFH30K3H1I
CF022N0860
8.3/8.8
GFH36K3HI
CF022N0820
10.0/11.5
220-240V~ 50Hz
GFH36K3H1I
CF022N0810
10.0/11.5
GFH42K3HI
CF022N0790
12.0/13.5
GFH42K3H1I
CF022N0800
12.0/13.5
GFH48K3HI
CF022N0770
14.0/15.0
220-240V~ 50Hz
GFH48K3H1I
CF022N0780
14.0/15.0
GFH60K3HI
CF022N0750
16.0/18.0
GFH60K3H1I
CF022N0760
16.0/18.0
Cassette
Type
GKH18K3HI
ET010N1090
5.0/5.4
220-240V~ 50Hz
GKH24K3HI
ET010N1110
7.0/7.6
GKH30K3HI
ET010N1100
8.5/9.0
GKH36K3HI
ET010N1080
10.0/11.5
GKH42K3HI
ET010N1070
12.0/13.5
GKH48K3HI
ET010N1060
14.0/14.8
220-240V~50Hz
GKH60K3HI
ET010N1050
15.0/16.8
Note:1 Ton =12000Btu/h = 3.517kW
NOTES:
The universal outdoor units means that the customer can choose any of three kind of indoor unit to
match the outdoor unit without any change with it.

U-Match Series Service Manual
4
2 NOMENCLATURE
2.1 Outdoor Unit
G
U
H
N
18
N
K
3
H
O
1
2
3
4
5
6
7
8
9
10
NO.
Description
Options
1
Gree Electric Appliances Inc
Capital Letter :G
2
Unit Type
U=U-Match Outdoor Unit
3
Product Type
C=Cool Only
H=Heat Pump without Aux Electric Heaters
4
Compressor Power Supply
Type Code
N=Constant Frequency
D=DC Inverter
A=AC Inverter
5
Nominal Cooling Capacity
Nominal Cooling Capacity
=Number×1000Btu/h
6
Climate Type
N=Climate T1 Condition
T= Climate T3 Condition
7
Power Supply Code
K= 220-240V~ 50Hz
M=380-415V 3N~ 50Hz
8
Refrigerant
1 =R22; 2=R407C; 3=R410A
9
Design Code
Design Code: A, B, C, D……
Design Change Code=0 (default)
1,2,3......
10
Unit Code
O=Outdoor unit
2.2 Intdoor Unit
G
F
H
18
T
K
3
H
I
1
2
3
4
5
6
7
8
9
NO.
Description
Options
1
Gree Electric Appliances Inc
Capital Letter :G
2
Unit Type
F=Duct Type; K=Cassette Type; T= Floor-ceiling Type
3
Product Type
C=Cool Only
H=Heat Pump without Aux Electric Heaters
4
Nominal Cooling Capacity
Nominal Cooling Capacity
=Number×1000Btu/h
5
Climate Type
Omit=Climate T1 Condition
T= Climate T3 Condition
6
Power Supply Code
K= 220-240V~ 50Hz
M=380-415V 3N~ 50Hz
7
Refrigerant
1 =R22; 2=R407C; 3=R410A
8
Design Code
Design Code: A, B, C, D……
Design Change Code=0 (default)
1,2,3......
9
Unit Code
I=indoor unite

U-Match Series Service Manual
5
3 PRODUCT DATA
3.1 Product Data of Indoor Unit
3.1.1 Duct Type
Model
Indoor unit
GFH18K3HI
GFH18K3H1I
GFH24K3HI
GFH24K3H1I
Product Code
CF022N0830
CF022N0840
CF022N0880
CF022N0870
Outdoor unit
GUHN18NK3HO
GUHN18NK3HO
GUHN24NK3HO
GUHN24NK3HO
Product Code
CF021W2090
CF021W2090
CF021W2100
CF021W2100
Capacity
Cooling Capacity
kW
5.0
5.0
7.0
7.0
Heating Capacity
kW
5.4
5.4
7.4
7.4
Power Input
Cooling
kW
2.0
2.0
2.5
2.5
Heating
kW
1.9
1.9
2.3
2.3
EER / COP
W/W
2.5/2.8
2.5/2.8
2.8/3.2
2.8/3.2
Indoor Unit
GFH18K3HI
GFH18K3H1I
GFH24K3HI
GFH24K3H1I
Power Supply
220-240V~ 50Hz
Heat Exchange
Cross Fin Coil
Cross Fin Coil
Cross Fin Coil
Cross Fin Coil
Fan
Drive
direct
direct
direct
direct
Motor Output
kW
0.06×1
0.06×1
0.09×1
0.09×1
Air Flow
m3/h
720
720
1260
1260
Rated Ext. Static Pressure
Pa
25
25
37
37
Ext. Static Pressure Range
Pa
0~30
0~30
0~30
0~30
Sound Pressure Level(H/M/L)
dB(A)
36/33/30/29
36/33/30/29
43/38/34/32
43/38/34/32
Air Filter
Standard washable synthetic
Drain
mm
Φ30×1.5
Φ26×3.0
Φ20×1.2
Φ26×3.0
Outline Dimensions (W×H×D)
mm
1015×720×275
1015×720×275
1260×555×270
1260×555×270
Net Weight
kg
31
32
33
33
Outdoor Unit
GUHN18NK3HO
GUHN18NK3HO
GUHN24NK3HO
GUHN24NK3HO
Power Supply
220-240V~ 50Hz
Heat Exchange
Cross Fin Coil
Fan
Drive
Axial-flow
Motor Output
kW
0.085×1
0.085×1
0.085×1
0.085×1
Fan Motor Speed
rpm
770/640
770/640
770/640
770/640
Compressor
Type
Rotary
Rotary
Rotary
Rotary
Power Input
W
1930
1930
2460
2460
Refrigerant
Control
Electronic Expansion Valve
Charge
kg
1.3
1.3
1.5
1.5
Outline Dimensions (W×H×D)
mm
955×395×700
955×395×700
955×395×700
955×395×700
Net Weight
kg
53
53
61
61
Piping
Connections
Liquid
Inch
Φ1/4
Φ1/4
Φ3/8
Φ3/8
Gas
Inch
Φ1/2
Φ1/2
Φ5/8
Φ5/8
Max. Length
m
15
15
15
15
Max. Height
m
15
15
15
15

U-Match Series Service Manual
6
Model
Indoor unit
GFH30K3HI
GFH30K3H1I
GFH36K3HI
GFH36K3H1I
Product Code
CF022N0850
CF022N0860
CF022N0820
CF022N0810
Outdoor unit
GUHN30NK3HO
GUHN30NK3HO
GUHN36NM3HO
GUHN36NM3HO
Product Code
CF021W2110
CF021W2110
CF021W2080
CF021W2080
Capacity
Cooling Capacity
kW
8.3
8.3
10.0
10.0
Heating Capacity
kW
8.8
8.8
11.5
11.5
Power Input
Cooling
kW
2.8
2.8
3.6
3.6
Heating
kW
2.7
2.7
3.3
3.3
EER / COP
W/W
2.9/3.2
2.9/3.2
2.7/3.4
2.7/3.4
Indoor Unit
GFH30K3HI
GFH30K3H1I
GFH36K3HI
GFH36K3H1I
Power Supply
220-240V~ 50Hz
Heat Exchange
Cross Fin Coil
Cross Fin Coil
Cross Fin Coil
Cross Fin Coil
Fan
Drive
direct
direct
direct
direct
Motor Output
kW
0.15×1
0.15×1
0.20×1
0.20×1
Air Flow
m3/h
1400
1400
2100
2100
Rated Ext. Static Pressure
Pa
37
37
37
37
Ext. Static Pressure Range
Pa
0~50
0~50
0~75
0~75
Sound Pressure Level(H/M/L)
dB(A)
48/46/45/44
48/46/45/44
51/48/46/44
51/48/46/44
Air Filter
Standard washable synthetic
Drain Piping
mm
Φ20×1.2
Φ26×3.0
Φ20×1.2
Φ26×3.0
Outline Dimensions (W×H×D)
mm
1260×555×270
1260×555×270
1230×790×290
1230×790×290
Net Weight
kg
34
35
46
47
Outdoor Unit
GUHN30NK3HO
GUHN30NK3HO
GUHN36NM3HO
GUHN36NM3HO
Power Supply
220-240V~ 50Hz
380-415V 3N~ 50Hz
Heat Exchange
Cross Fin Coil
Fan
Drive
Axial-flow
Motor Output
kW
0.100×1
0.100×1
0.100×1
0.100×1
Fan Motor Speed
rpm
900/665
900/665
900/665
900/665
Compressor
Type
Rotary
Rotary
Rotary
Rotary
Power Input
W
2760
2760
3320
3320
Refrigerant
Control
Electronic Expansion Valve
Charge
kg
1.8
1.8
2.2
2.2
Outline Dimensions (W×H×D)
mm
980×425×790
980×425×790
980×425×790
980×425×790
Net Weight
kg
69
69
69
69
Piping
Connections
Liquid
Inch
Φ3/8
Φ3/8
Φ3/8
Φ3/8
Gas
Inch
Φ5/8
Φ5/8
Φ3/4
Φ3/4
Max. Length
m
15
15
15
15
Max. Height
m
30
30
30
30

U-Match Series Service Manual
7
Model
Indoor unit
GFH42K3HI
GFH42K3H1I
GFH48K3HI
GFH48K3H1I
Product Code
CF022N0790
CF022N0800
CF022N0770
CF022N0780
Outdoor unit
GUHN42NM3HO
GUHN42NM3HO
GUHN48NM3HO
GUHN48NM3HO
Product Code
CF021W2070
CF021W2070
CF021W2060
CF021W2060
Capacity
Cooling Capacity
kW
12.0
12.0
14.0
14.0
Heating Capacity
kW
13.5
13.5
15.0
15.0
Power Input
Cooling
kW
4.4
4.4
5.0
5.0
Heating
kW
4.1
4.1
4.7
4.7
EER / COP
W/W
2.7/3.3
2.7/3.3
2.8/3.1
2.8/3.1
Indoor Unit
GFH42K3HI
GFH42K3H1I
GFH48K3HI
GFH48K3H1I
Power Supply
220-240V~ 50Hz
Heat Exchange
Cross Fin Coil
Cross Fin Coil
Cross Fin Coil
Cross Fin Coil
Fan
Drive
direct
direct
direct
direct
Motor Output
kW
0.20×1
0.20×1
0.50×1
0.50×1
Air Flow
m3/h
2100
2100
2300
2300
Rated Ext. Static Pressure
Pa
37
37
50
50
Ext. Static Pressure Range
Pa
0~75
0~75
0~100
0~100
Sound Pressure Level(H/M/L)
dB(A)
51/48/46/44
51/48/46/44
53/52/50/50
53/52/50/50
Air Filter
Standard washable synthetic
Drain Piping
mm
Φ20×1.2
Φ26×3.0
Φ20×1.2
Φ26×3.0
Outline Dimensions (W×H×D)
mm
1230×790×290
1230×790×290
1230×790×290
1230×790×290
Net Weight
kg
46
47
53
53
Outdoor Unit
GUHN42NM3HO
GUHN42NM3HO
GUHN48NM3HO
GUHN48NM3HO
Power Supply
380-415V 3N~ 50Hz
Heat Exchange
Cross Fin Coil
Fan
Drive
Axial-flow
Motor Output
kW
0.140×1
0.140×1
0.140×1
0.140×1
Fan Motor Speed
rpm
830/630
830/630
830/630
830/630
Compressor
Type
Rotary
Rotary
Rotary
Rotary
Power Input
W
4130
4130
4750
4750
Refrigerant
Control
Electronic Expansion Valve
Charge
kg
3.3
3.3
3.7
3.7
Outline Dimensions (W×H×D)
mm
1120×440×1100
1120×440×1100
1120×440×1100
1120×440×1100
Net Weight
kg
100
100
103
103
Piping
Connections
Liquid
Inch
Φ1/2
Φ1/2
Φ1/2
Φ1/2
Gas
Inch
Φ3/4
Φ3/4
Φ3/4
Φ3/4
Max. Length
m
30
30
30
30
Max. Height
m
30
30
30
30

U-Match Series Service Manual
8
Model
Indoor unit
GFH60K3HI
GFH60K3H1I
Product Code
CF022N0750
CF022N0760
Outdoor unit
GUHN60NM3HO
GUHN60NM3HO
Product Code
CF021W2050
CF021W2050
Capacity
Cooling Capacity
kW
16.0
16.0
Heating Capacity
kW
18.0
18.0
Power Input
Cooling
kW
5.6
5.6
Heating
kW
5.5
5.5
EER / COP
W/W
2.8/3.2
2.8/3.2
Indoor Unit
GFH60K3HI
GFH60K3H1I
Power Supply
220-240V~ 50Hz
Heat Exchange
Cross Fin Coil
Cross Fin Coil
Fan
Drive
direct
direct
Motor Output
kW
0.50×1
0.50×1
Air Flow
m3/h
2500
2500
Rated Ext. Static Pressure
Pa
50
50
Ext. Static Pressure Range
Pa
0~100
0~100
Sound Pressure Level(H/M/L)
dB(A)
56/52/49/49
56/52/49/49
Air Filter
Standard washable synthetic
Drain Piping
mm
Φ30×1.5
Φ26×3.0
Outline Dimensions (W×H×D)
mm
1235×830×330
1235×830×330
Net Weight
kg
56
56
Outdoor Unit
GUHN60NM3HO
GUHN60NM3HO
Power Supply
380-415V 3N~ 50Hz
Heat Exchange
Cross Fin Coil
Fan
Drive
Axial-flow
Motor Output
kW
0.070×2
0.070×2
Fan Motor Speed
rpm
880/500
880/500
Compressor
Type
Rotary
Rotary
Power Input
W
5200
5200
Refrigerant
Control
Electronic Expansion Valve
Charge
kg
4.1
4.1
Outline Dimensions (W×H×D)
mm
980×410×1350
980×410×1350
Net Weight
kg
118
118
Piping
Connections
Liquid
Inch
Φ1/2
Φ1/2
Gas
Inch
Φ3/4
Φ3/4
Max. Length
m
15
15
Max. Height
m
30
30

U-Match Series Service Manual
9
3.1.2 Cassette Type
Model
Indoor unit
GKH18K3HI
GKH24K3HI
GKH30K3HI
GKH36K3HI
Product Code
ET010N1090
ET010N1110
ET010N1100
ET010N1080
Outdoor unit
GUHN18NK3HO
GUHN24NK3HO
GUHN30NK3HO
GUHN36NM3HO
Product Code
CF021W2090
CF021W2100
CF021W2110
CF021W2080
Capacity
Cooling Capacity
kW
5.0
7.0
8.5
10.0
Heating Capacity
kW
5.4
7.6
9.0
11.5
Power Input
Cooling
kW
2.0
2.5
2.7
3.5
Heating
kW
1.9
2.3
2.6
3.3
EER / COP
W/W
2.5/2.8
2.8/3.3
3.1/3.4
2.8/3.4
Indoor Unit
GKH18K3HI
GKH24K3HI
GKH30K3HI
GKH36K3HI
Power Supply
220-240V~ 50Hz
Heat Exchange
Cross Fin Coil
Cross Fin Coil
Cross Fin Coil
Cross Fin Coil
Fan
Drive
direct
direct
direct
direct
Motor Output
kW
0.03×1
0.04×1
0.04×1
0.06×1
Air Flow
m3/h
720
1450
1500
1650
Sound Pressure Level(H/M/L)
dB(A)
50/49/47/46
49/48/47/46
51/50/49/48
52/47/46/43
Air Filter
Standard washable synthetic
Drain Piping
mm
Φ26×3.0
Φ33×4.0
Φ33×4.0
Φ33×4.0
Outline Dimensions (W×H×D)
mm
665×595×240
840×840×240
840×840×240
850×850×325
Net Weight
kg
20
27
27
32
Outdoor Unit
GUHN18NK3HO
GUHN24NK3HO
GUHN30NK3HO
GUHN36NM3HO
Power Supply
220-240V~ 50Hz
380-415V 3N~
50Hz
Heat Exchange
Cross Fin Coil
Fan
Drive
Axial-flow
Motor Output
kW
0.085×1
0.085×1
0.100×1
0.100×1
Fan Motor Speed
rpm
770/640
770/640
900/665
900/665
Compressor
Type
Rotary
Rotary
Rotary
Rotary
Power Input
W
1930
2460
2760
3320
Refrigerant
Control
Electronic Expansion Valve
Charge
kg
1.3
1.5
1.8
2.2
Outline Dimensions (W×H×D)
mm
955×395×700
955×395×700
980×425×790
980×425×790
Net Weight
kg
53
61
69
69
Piping
Connections
Liquid
Inch
Φ1/4
Φ3/8
Φ3/8
Φ3/8
Gas
Inch
Φ1/2
Φ5/8
Φ5/8
Φ3/4
Max. Length
m
15
15
15
15
Max. Height
m
15
15
30
30

U-Match Series Service Manual
10
Model
Indoor unit
GKH42K3HI
GKH48K3HI
GKH60K3HI
Product Code
ET010N1070
ET010N1060
ET010N1050
Outdoor unit
GUHN42NM3HO
GUHN48NM3HO
GUHN60NM3HO
Product Code
CF021W2070
CF021W2060
CF021W2050
Capacity
Cooling Capacity
kW
12.0
14.0
15.0
Heating Capacity
kW
13.5
14.8
16.8
Power Input
Cooling
kW
4.2
4.8
5.3
Heating
kW
4.0
4.9
5.2
EER / COP
W/W
2.8/3.3
2.9/3.0
2.8/3.2
Indoor Unit
GKH42K3HI
GKH48K3HI
GKH60K3HI
Power Supply
220-240V~50Hz
Heat Exchange
Cross Fin Coil
Cross Fin Coil
Cross Fin Coil
Fan
Drive
direct
direct
direct
Motor Output
kW
0.06×1
0.06×1
0.09×1
Air Flow
m3/h
1650
1650
1800
Sound Pressure Level(H/M/L)
dB(A)
52/47/46/43
52/47/46/43
53/51/49/47
Air Filter
Standard washable synthetic
Drain Piping
mm
Φ33×4.0
Φ33×4.0
Φ32×2.0
Outline Dimensions (W×H×D)
mm
850×850×325
850×850×325
840×840×290
Net Weight
kg
32
33
37
Outdoor Unit
GUHN42NM3HO
GUHN48NM3HO
GUHN60NM3HO
Power Supply
380-415V 3N~ 50Hz
Heat Exchange
Cross Fin Coil
Fan
Drive
Axial-flow
Motor Output
kW
0.140×1
0.140×1
0.070×2
Fan Motor Speed
rpm
830/630
830/630
880/500
Compressor
Type
Rotary
Rotary
Rotary
Power Input
W
4130
4750
5200
Refrigerant
Control
Electronic Expansion Valve
Charge
kg
3.3
3.7
4.1
Outline Dimensions (W×H×D)
mm
1120×440×1100
1120×440×1100
980×410×1350
Net Weight
kg
100
103
118
Piping
Connections
Liquid
Inch
Φ1/2
Φ1/2
Φ1/2
Gas
Inch
Φ3/4
Φ3/4
Φ3/4
Max. Length
m
30
30
15
Max. Height
m
30
30
30

U-Match Series Service Manual
11
Note: Nominal capacities are based on the follow conditions.
Mode
Indoor
Outdoor
Cooling
DB:27(80.6)
WB:19(66.2)
DB:35(95)
WB:24(75.2)
Heating
DB:20(68)
WB:--(--)
DB:7(44.6)
WB:6(42.8)
Piping
Length
18K-48K
5m
60K
7.5m
The air volume is measured at the relevant standard external static pressure.
Noise is tested in the semianechoic room, so it should be slightly higher in the actual operation due
to environmental change.
3.2 Operation Range
Mode
Range of Outdoor Temperature
Cooling
-15-43
Heating
-10-24
3.3 Electrical Data
3.3.1 Outdoor unit Table 1-4-1 Electrical Data of Outdoor Unit
Model
Compressor
Fan Motor
Fuse/Breaker
Capacity
Min.
Power
Supply
Cord
Power
Supply
Qty.
RLA
FLA
V/Ph/Hz
−
A
A
A
mm2
GUHN18NK3HO
220-240,1,50
1
8.4
<1
5/13
2.5
GUHN24NK3HO
220-240,1,50
1
11.3
<1
5/20
4.0
GUHN30NK3HO
220-240,1,50
1
12.7
<1
5/20
4.0
GUHN36NM3HO
380-415,3,50
1
6.9
<1
5/13
1.5
GUHN42NM3HO
380-415,3,50
1
7.2
<1
5/13
2.5
GUHN48NM3HO
380-415,3,50
1
8.7
<1
5/16
2.5
GUHN60NM3HO
380-415,3,50
1
9.3
<1
5/16
2.5

U-Match Series Service Manual
12
3.3.2 Indoor unit Table 1-4-2 Electrical Data of Indoor Unit
Model
Power
Supply
Fan Motor
FLA
Fuse/Breaker
Capacity
Min. Power
Supply Cord
V/Ph/Hz
A
A
mm2
GFH18K3HI
220-240,1,50
<1
5/6
1.0
GFH18K3H1I
220-240,1,50
<1
5/6
1.0
GFH24K3HI
220-240,1,50
<1
5/6
1.0
GFH24K3H1I
220-240,1,50
<1
5/6
1.0
GFH30K3HI
220-240,1,50
<1
5/6
1.0
GFH30K3H1I
220-240,1,50
<1
5/6
1.0
GFH36K3HI
220-240,1,50
<1
5/6
1.0
GFH36K3H1I
220-240,1,50
<1
5/6
1.0
GFH42K3HI
220-240,1,50
<1
5/6
1.0
GFH42K3H1I
220-240,1,50
<1
5/6
1.0
GFH48K3HI
220-240,1,50
<1
5/6
1.0
GFH48K3H1I
220-240,1,50
<1
5/6
1.0
GFH60K3HI
220-240,1,50
<1
5/6
1.0
GFH60K3H1I
220-240,1,50
<1
5/6
1.0
GKH18K3HI
220-240,1,50
<1
5/6
1.0
GKH24K3HI
220-240,1,50
<1
5/6
1.0
GKH30K3HI
220-240,1,50
<1
5/6
1.0
GKH36K3HI
220-240,1,50
<1
5/6
1.0
GKH42K3HI
220-240,1,50
<1
5/6
1.0
GKH48K3HI
220-240,1,50
<1
5/6
1.0
GKH60K3HI
220-240,1,50
<1
5/6
1.0
Notes:
RLA: Rated load amperes
LRA: Locked rotor amperes
FLA: Full load current
①
Install the disconnect device with a contact gap of at least 3mm in all poles nearby the units
(Both indoor unit and outdoor unit).The appliance must be positioned so that the plug is
accessible.
②
The specifications of the breaker and power cable listed in the table above are determined based
on the maximum power (maximum amps) of the unit.
③
The specifications of the power cable listed in the table above are applied to the conduit-guarded
multi-wire copper cable (like, YJV copper cable, consisting of PE insulated wires and a PVC
cable jacket) used at 40°С and resistible to 90°С (see IEC 60364-5-52). If the working condition
changes, they should be modified according to the related national standard.
④
The specifications of the breaker listed in the table above are applied to the breaker with the
working temperature at 40°С. If the working condition changes, they should be modified
according to the related national standard.

U-Match Series Service Manual
13
4 PIPING DIAGRAM

U-Match Series Service Manual
14
CONTROL

U-Match Series Service Manual
15
CONTROL
1 OPERATION FLOWCHART
1.1 Cooling/Dry Operation

U-Match Series Service Manual
16
1.2 Heating Operation

U-Match Series Service Manual
17
2 WIRELESS REMOTE CONTROLLER
2.1 Operation and Display View
Table 2-2-1 Operation instruction of wireless remote controller
No.
Name
Function Description
Signal
transmitter
Signal transmitter
ON/OFF
button
Press this button and the unit will be turned on; press it once more and the unit will be turned off.
When turning off the unit, the Sleep function will be canceled, but the presetting time is still
remained.
MODE
button
By pressing this button, Auto, Cool, Dry, Fan, Heat mode can be selected circularly. Auto
mode is default after power on. Under the Auto mode, the setting temperature will not be
displayed; Under the Heat mode, the initial value is 28°C (82°F); under other modes, the initial
value is 25°C (77°F).
AUTO; COOL; DRY; FAN; HEAT (only for cooling and heating unit)
- button
Preset temperature can be decreased by pressing this button. Pressing and holding this button
for more than 2 seconds can make the temperature changed quickly until release this button and
then transmit this order. The temperature adjustment is unavailable under the Auto mode, but
the order can be sent by pressing this button. Centigrade setting range: 16-30; Fahrenheit scale
setting range 61-86.
+ button
Preset temperature can be increased by pressing this button. Pressing and holding this button
for more than 2 seconds can make the temperature changed quickly until release the button and
then transmit this order. The temperature adjustment is unavailable under the Auto mode, but
the order can be sent by pressing this button. Centigrade setting range: 16-30; Fahrenheit scale
setting range 61-86.