Gree GDN10AH-K4EBB1C User manual

Service Manual
GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
Change for Life
Service Manual
Models: GDN10AH-K4EBB1C
GDN10AH-K4EBB2C
GDN10AH-K4EBB3C
GDN12AH-K4EBB1C
GDN12AH-K4EBB2C
GDN12AH-K4EBB3C
GDN16AH-K4EBB1C
GDN16AH-K4EBB2C
GDN16AH-K4EBB3C
GDN20AH-K4EBB1C
GDN20AH-K4EBB2C
GDN20AH-K4EBB3C
GDN24AH-K4EBB1C
GDN24AH-K4EBB2C
GDN24AH-K4EBB3C
(Refrigerant R134a)

Service Manual
Table of Contents
Table of Contents
Part Ⅰ: Technical Information ............................................................ 1
1.Summary ...................................................................................................... 1
2.Specications ........................................................................................... 2
3.Outline Dimension Diagram ............................................................ 11
4.Refrigerant System Diagram .......................................................... 14
5.Electrical Part .......................................................................................... 15
5.1 Wiring Diagram ......................................................................................... 15
5.2 PCB Printed Diagram ................................................................................ 16
6.Function and Control .......................................................................... 18
6.1 Control Panel Instruction ........................................................................... 18
6.2 Introduction of Basic Mode Function ......................................................... 19
Part Ⅱ: Maintenance ............................................................................ 21
7.Notes Maintenance .............................................................................. 21
8.Maintenance ............................................................................................. 22
8.1 Error Code ................................................................................................. 22
8.2 Malfunction Detection Flowchart ............................................................... 23
8.3 Maintenance Method for Common Malfunction ........................................ 25
9.Exploded View and Parts List ........................................................ 27
10.Removal Procedure ........................................................................... 37
Appendix: ...................................................................................................... 44
Appendix 1: Reference Sheet of Celsius and Fahrenheit ............................... 44
Appendix 2: Resistance Table of Temperature Sensor ................................... 45
Appendix 3: Resistance Value Table of Humidity Sensor ............................... 50

1
Service Manual
Installation and Maintenance
1.Summary
Part Ⅰ: Technical Information
Models
GDN10AH-K4EBB2C
GDN12AH-K4EBB2C
GDN16AH-K4EBB2C
GDN20AH-K4EBB2C
GDN24AH-K4EBB2C
GDN10AH-K4EBB3C
GDN12AH-K4EBB3C
GDN16AH-K4EBB3C
GDN20AH-K4EBB3C
GDN24AH-K4EBB3C
GDN10AH-K4EBB1C
GDN12AH-K4EBB1C
GDN16AH-K4EBB1C
GDN20AH-K4EBB1C
GDN24AH-K4EBB1C

2
Service Manual
Installation and Maintenance
2.Specications
The above data is subject to change without notice; please refer to the nameplate of the unit.
Model GDN10AH-K4EBB1C GDN12AH-K4EBB1C
Product Code CK051026100 CK051026200
Power Supply
Rated Voltage V~ 220-240 220-240
Rated Frequency Hz 50 50
Phases 1 1
Rated Dehumidifying Volume L/h 0.17 0.18
Power Input W 220 220
Power Current A 1.20 1.20
Set Humidity Range % 35~80 35~80
Air Flow Volume(H/M/L) m3/h 150/120/100 150/120/100
Fan Motor Speed (H/M/L) r/min 930/800/650 930/800/650
Output of Fan Motor W 6 6
Fan Motor Capacitor μF 1.0 1.0
Fan Type Centrifugal Centrifugal
Diameter Length(DXL) mm Φ180X76.5 Φ180X76.5
Throttling Method Capillary Capillary
Fuse A 3.15 3.15
Sound Pressure Level (H/M/L) dB (A) 43/41/39 43/41/39
Sound Power Level ((H/M/L) dB (A) 53/51/49 53/51/49
Climate Type T1 T1
Isolation I I
Moisture Protection IPX0 IPX0
Permissible Excessive Operating Pressure for the
Discharge Side MPa 1.7 1.7
Permissible Excessive Operating Pressure for the
Suction Side MPa 0.6 0.6
Dimension (WXHXD) mm 343X525X260 343X525X260
Dimension of Carton Box (LXWXH) mm 391X310X569 391X310X569
Dimension of Package (LXWXH) mm 394X313X584 394X313X584
Application Area m214 14
Net Weight kg 13 13
Gross Weight kg 14.5 14.5
Refrigerant R134a R134a
Refrigerant Charge kg 0.08 0.09
Bucket Capacity L 4.0/4.6 4.0/4.6
Control Type Electronic Electronic
Evaporator
Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm Φ7 Φ7
Row-n Gap mm 1-1.3 1-1.3
Coil Length (LXDXW) mm 235X12.7X190.5 235X12.7X190.5
Condenser
Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm Φ7 Φ7
Rows-n Gap mm 1-1.4 1-1.4
Coil Length (LXDXW) mm 235X12.7X190.5 235X12.7X190.5
Compressor
Compressor Manufacturer/Trademark Shanghai Hitachi Electrical
Appliances Co.,Ltd/HIGHLY
Shanghai Hitachi Electrical
Appliances Co.,Ltd/HIGHLY
Model BSA418CV-R1AUA BSA418CV-R1AUA
Type Rotary Rotary
Power Input W 213 213
Overload Protector URP-191-78 URP-191-78
L.R.A. A 3.4 3.4
Working Current A 1.2 1.2

3
Service Manual
Installation and Maintenance
The above data is subject to change without notice; please refer to the nameplate of the unit.
Model GDN16AH-K4EBB1C GDN20AH-K4EBB1C
Product Code CK051026300 CK051026400
Power Supply
Rated Voltage V~ 220-240 220-240
Rated Frequency Hz 50 50
Phases 1 1
Rated Dehumidifying Volume L/h 0.33 0.41
Power Input W 300 330
Power Current A 1.35 1.50
Set Humidity Range % 35~80 35~80
Air Flow Volume(H/M/L) m3/h 180/160/140 180/160/140
Fan Motor Speed (H/M/L) r/min 950/860/740 950/860/740
Output of Fan Motor W 7 7
Fan Motor Capacitor μF 1.0 1.0
Fan Type Centrifugal Centrifugal
Diameter Length(DXL) mm Φ180X76.5 Φ180X76.5
Throttling Method Capillary Capillary
Fuse A 3.15 3.15
Sound Pressure Level (H/M/L) dB (A) 45/43/41 45/43/41
Sound Power Level ((H/M/L) dB (A) 55/53/51 55/53/51
Climate Type T1 T1
Isolation I I
Moisture Protection IPX0 IPX0
Permissible Excessive Operating Pressure for the
Discharge Side MPa 1.7 1.7
Permissible Excessive Operating Pressure for the
Suction Side MPa 0.6 0.6
Dimension (WXHXD) mm 343X525X260 343X525X260
Dimension of Carton Box (LXWXH) mm 391X310X569 391X310X569
Dimension of Package (LXWXH) mm 394X313X584 394X313X584
Application Area m222.4 23
Net Weight kg 15.0 15.5
Gross Weight kg 16.5 17.0
Refrigerant R134a R134a
Refrigerant Charge kg 0.13 0.20
Bucket Capacity L 4.0/4.6 4.0/4.6
Control Type Electronic Electronic
Evaporator
Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm Φ7 Φ7
Row-n Gap mm 1-1.3 1-1.3
Coil Length (LXDXW) mm 235X12.7X190.5 235X12.7X190.5
Condenser
Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm Φ7 Φ7
Rows-n Gap mm 1-1.4 2-1.4
Coil Length (LXDXW) mm 235X12.7X190.5 235X12.7X190.5
Compressor
Compressor Manufacturer/Trademark RECHI PRECISION CO.,LTD/
RECHI
RECHI PRECISION CO.,LTD/
RECHI
Model 39E0G3HR&F^YA 39E0G3HR&F^YA
Type Rotary Rotary
Power Input W 213 213
Overload Protector UP3-016 UP3-017
L.R.A. A 3.4 3.4
Working Current A 1.2 1.4

4
Service Manual
Installation and Maintenance
The above data is subject to change without notice; please refer to the nameplate of the unit.
Model GDN24AH-K4EBB1C
Product Code CK051026500
Power Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Rated Dehumidication Capacity L/h 0.50
Power Input W 330
Current Input A 1.50
Set Humidity Range % 35~80
Air Flow Volume(H/M/L) m3/h 180/160/140
Fan Motor Speed(H/M/L) r/min 1150/1000/850
Fan Motor Power Output W 10
Fan Motor RLA A 0.16
Fan Motor Capacitor μF 1.5
Fan Type Centrifugal
Fan Diameter Length(DXL) mm Φ180X76.5
Throttling Method Capillary
Fuse Current A 3.15
Sound Pressure Level(H/M/L) dB (A) 47/45/43
Sound Power Level(H/M/L) dB (A) 57/55/53
Climate Type T1
Isolation I
Moisture Protection IPX0
Permissible Excessive Operating Pressure for the
Discharge Side MPa 1.7
Permissible Excessive Operating Pressure for the
Suction Side MPa 0.6
Dimension (WXHXD) mm 343X525X260
Dimension of Carton Box(LXWXH) mm 391X310X569
Dimension of Package(LXWXH) mm 394X313X584
Application Area m233.6
Net Weight kg 16
Gross Weight kg 17.5
Refrigerant R134a
Refrigerant Charge kg 0.24
Bucket Capacity L 4.0/4.6
Control Type Electronic
Evaporator
Evaporator Form Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Φ7
Evaporator Row-n Gap mm 2-1.3
Evaporator Coil Length (LXDXW) mm 235X25.4X190.5
Condenser
Condenser Form Aluminum Fin-copper Tube
Condenser Pipe Diameter mm Φ7
Condenser Rows-n Gap mm 2-1.4
Condenser Coil Length (LXDXW) mm 235X25.4X190.5
Compressor
Compressor Manufacturer RECHI PRECISION CO.,LTD/RECHI
Compressor Model 39E073HR&F^YA
Compressor Type Rotary
Compressor Power Input W 300
Compressor Overload Protector UP3-017
Compressor LRA. A 5.5
Compressor RLA A 1.4

5
Service Manual
Installation and Maintenance
The above data is subject to change without notice; please refer to the nameplate of the unit.
Model GDN10AH-K4EBB2C GDN12AH-K4EBB2C
Product Code CK051024000 CK051025000
Power Supply
Rated Voltage V~ 220-240 220-240
Rated Frequency Hz 50 50
Phases 1 1
Rated Dehumidifying Volume L/h 0.17 0.18
Power Input W 220 220
Power Current A 1.20 1.20
Set Humidity Range % 35~80 35~80
Air Flow Volume(H/M/L) m3/h 150/120/100 150/120/100
Fan Motor Speed (H/M/L) r/min 930/800/650 930/800/650
Output of Fan Motor W 6 6
Fan Motor Capacitor μF 1.0 1.0
Fan Type Centrifugal Centrifugal
Diameter Length(DXL) mm Φ180X76.5 Φ180X76.5
Throttling Method Capillary Capillary
Fuse A 3.15 3.15
Sound Pressure Level (H/M/L) dB (A) 43/41/39 43/41/39
Sound Power Level ((H/M/L) dB (A) 53/51/49 53/51/49
Climate Type T1 T1
Isolation I I
Moisture Protection IPX0 IPX0
Permissible Excessive Operating Pressure for the
Discharge Side MPa 1.7 1.7
Permissible Excessive Operating Pressure for the
Suction Side MPa 0.6 0.6
Dimension (WXHXD) mm 343X525X262 343X525X262
Dimension of Carton Box (LXWXH) mm 391X310X569 391X310X569
Dimension of Package (LXWXH) mm 394X313X584 394X313X584
Application Area m214 14
Net Weight kg 13 13
Gross Weight kg 14.5 14.5
Refrigerant R134a R134a
Refrigerant Charge kg 0.08 0.09
Bucket Capacity L 4.0/4.6 4.0/4.6
Control Type Electronic Electronic
Evaporator
Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm Φ7 Φ7
Row-n Gap mm 1-1.3 1-1.3
Coil Length (LXDXW) mm 235X12.7X190.5 235X12.7X190.5
Condenser
Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm Φ7 Φ7
Rows-n Gap mm 1-1.4 2-1.4
Coil Length (LXDXW) mm 235X12.7X190.5 235X12.7X190.5
Compressor
Compressor Manufacturer/Trademark Shanghai Hitachi Electrical
Appliances Co.,Ltd/HIGHLY
Shanghai Hitachi Electrical
Appliances Co.,Ltd/HIGHLY
Model BSA418CV-R1AUA BSA418CV-R1AUA
Type Rotary Rotary
Power Input W 213 213
Overload Protector URP-191-78 URP-191-78
L.R.A. A 3.4 3.4
Working Current A 1.1 1.1

6
Service Manual
Installation and Maintenance
The above data is subject to change without notice; please refer to the nameplate of the unit.
Model GDN16AH-K4EBB2C GDN20AH-K4EBB2C
Product Code CK051023700 CK051023800
Power Supply
Rated Voltage V~ 220-240 220-240
Rated Frequency Hz 50 50
Phases 1 1
Rated Dehumidifying Volume L/h 0.33 0.41
Power Input W 300 300
Power Current A 1.35 1.5
Set Humidity Range % 35~80 35~80
Air Flow Volume(H/M/L) m3/h 180/160/140 180/160/140
Fan Motor Speed (H/M/L) r/min 950/860/740 950/860/740
Output of Fan Motor W 7 7
Fan Motor RLA A 0.13 0.13
Fan Motor Capacitor μF 1 1
Fan Type Centrifugal Centrifugal
Diameter Length(DXL) mm Φ180X76.5 Φ180X76.5
Throttling Method Capillary Capillary
Fuse A 3.15 3.15
Sound Pressure Level (H/M/L) dB (A) 45/43/41 45/43/41
Sound Power Level ((H/M/L) dB (A) 55/53/51 55/53/51
Climate Type T1 T1
Isolation I I
Moisture Protection IPX0 IPX0
Permissible Excessive Operating Pressure for the
Discharge Side MPa 1.7 1.7
Permissible Excessive Operating Pressure for the
Suction Side MPa 0.6 0.6
Dimension (WXHXD) mm 343X525X262 343X525X262
Dimension of Carton Box (LXWXH) mm 391X310X569 391X310X569
Dimension of Package (LXWXH) mm 394X313X584 394X313X584
Application Area m222.4 28
Net Weight kg 15 15.5
Gross Weight kg 16.5 17
Refrigerant R134a R134a
Refrigerant Charge kg 0.13 0.2
Bucket Capacity L 4.0/4.6 4.0/4.6
Control Type Electronic Electronic
Evaporator
Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm Φ7 Φ7
Row-n Gap mm 1-1.3 1-1.3
Coil Length (LXDXW) mm 235X12.7X190.5 235X12.7X190.5
Condenser
Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm Φ7 Φ7
Rows-n Gap mm 1-1.4 2-1.4
Coil Length (LXDXW) mm 235X12.7X190.5 235X12.7X190.5
Compressor
Compressor Manufacturer/Trademark RECHI PRECISION CO.,LTD/
RECHI
RECHI PRECISION CO.,LTD/
RECHI
Model 39E0G3HR&F^YA 39E073HR&F^YA
Type Rotary Rotary
Power Input W 265 300
Overload Protector UP3-016 UP3-017
L.R.A. A 5.5 5.5
Working Current A 1.2 1.4

7
Service Manual
Installation and Maintenance
The above data is subject to change without notice; please refer to the nameplate of the unit.
Model GDN24AH-K4EBB2C
Product Code CK051023900
Power Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Rated Dehumidication Capacity L/h 0.50
Power Input W 330
Current Input A 1.50
Set Humidity Range % 35~80
Air Flow Volume(H/M/L) m3/h 180/160/140
Fan Motor Speed(H/M/L) r/min 1150/1000/850
Fan Motor Power Output W 10
Fan Motor RLA A 0.16
Fan Motor Capacitor μF 1.5
Fan Type Centrifugal
Fan Diameter Length(DXL) mm Φ180X76.5
Throttling Method Capillary
Fuse Current A 3.15
Sound Pressure Level(H/M/L) dB (A) 47/45/43
Sound Power Level(H/M/L) dB (A) 57/55/53
Climate Type T1
Isolation I
Moisture Protection IPX0
Permissible Excessive Operating Pressure for the
Discharge Side MPa 1.7
Permissible Excessive Operating Pressure for the
Suction Side MPa 0.6
Dimension (WXHXD) mm 343X525X262
Dimension of Carton Box(LXWXH) mm 391X310X569
Dimension of Package(LXWXH) mm 394X313X584
Application Area m233.6
Net Weight kg 16
Gross Weight kg 17.5
Refrigerant R134a
Refrigerant Charge kg 0.24
Bucket Capacity L 4.0/4.6
Control Type Electronic
Evaporator
Evaporator Form Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Φ7
Evaporator Row-n Gap mm 2-1.3
Evaporator Coil Length (LXDXW) mm 235X25.4X190.5
Condenser
Condenser Form Aluminum Fin-copper Tube
Condenser Pipe Diameter mm Φ7
Condenser Rows-n Gap mm 2-1.4
Condenser Coil Length (LXDXW) mm 235X25.4X190.5
Compressor
Compressor Manufacturer RECHI PRECISION CO.,LTD/RECHI
Compressor Model 39E073HR&F^YA
Compressor Type Rotary
Compressor Power Input W 300
Compressor Overload Protector UP3-017
Compressor LRA. A 5.5
Compressor RLA A 1.4

8
Service Manual
Installation and Maintenance
Model GDN10AH-K4EBB3C GDN12AH-K4EBB3C
Product Code CK051026000 CK051025800
Power Supply
Rated Voltage V~ 220-240 220-240
Rated Frequency Hz 50 50
Phases 1 1
Rated Dehumidifying Volume L/h 0.17 0.18
Power Input W 220 220
Power Current A 1.20 1.20
Set Humidity Range % 35~80 35~80
Air Flow Volume(H/M/L) m3/h 150/120/100 150/120/100
Fan Motor Speed (H/M/L) r/min 950/860/740 950/860/740
Output of Fan Motor W 6 6
Fan Motor Capacitor μF 1.0 1.0
Fan Type Centrifugal Centrifugal
Diameter Length(DXL) mm Φ180X76.5 Φ180X76.5
Throttling Method Capillary Capillary
Fuse A 3.15 3.15
Sound Pressure Level (H/M/L) dB (A) 43/41/39 43/41/39
Sound Power Level ((H/M/L) dB (A) 53/51/49 53/51/49
Climate Type T1 T1
Isolation I I
Moisture Protection IPX0 IPX0
Permissible Excessive Operating Pressure for the
Discharge Side MPa 1.7 1.7
Permissible Excessive Operating Pressure for the
Suction Side MPa 0.6 0.6
Dimension (WXHXD) mm 343X525X270 343X525X270
Dimension of Carton Box (LXWXH) mm 391X310X569 391X310X569
Dimension of Package (LXWXH) mm 394X313X584 394X313X584
Application Area m214 14
Net Weight kg 13 13
Gross Weight kg 14.5 14.5
Refrigerant R134a R134a
Refrigerant Charge kg 0.13 0.20
Bucket Capacity L 4.0/4.6 4.0/4.6
Control Type Electronic Electronic
Evaporator
Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm Φ7 Φ7
Row-n Gap mm 1-1.3 1-1.3
Coil Length (LXDXW) mm 235X12.7X190.5 235X12.7X190.5
Condenser
Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm Φ7 Φ7
Rows-n Gap mm 1-1.4 1-1.4
Coil Length (LXDXW) mm 235X12.7X190.5 235X12.7X190.5
Compressor
Compressor Manufacturer/Trademark Shanghai Hitachi Electrical
Appliances Co.,Ltd
Shanghai Hitachi Electrical
Appliances Co.,Ltd
Model BSA418CV-R1AUN BSA418CV-R1AUN
Type Rotary Rotary
Power Input W 213 213
Overload Protector UP3-016 URP-191-78
L.R.A. A 3.4 3.4
Working Current A 1.1 1.1
The above data is subject to change without notice; please refer to the nameplate of the unit.

9
Service Manual
Installation and Maintenance
Model GDN16AH-K4EBB3C GDN20AH-K4EBB3C
Product Code CK051025900 CK051025600
Power Supply
Rated Voltage V~ 220-240 220-240
Rated Frequency Hz 50 50
Phases 1 1
Rated Dehumidifying Volume L/h 0.33 0.41
Power Input W 300 330
Power Current A 1.35 1.50
Set Humidity Range % 35~80 35~80
Air Flow Volume(H/M/L) m3/h 180/160/140 180/160/140
Fan Motor Speed (H/M/L) r/min 950/860/740 950/860/740
Output of Fan Motor W 7 7
Fan Motor Capacitor μF 1.0 1.0
Fan Type Centrifugal Centrifugal
Diameter Length(DXL) mm Φ180X76.5 Φ180X76.5
Throttling Method Capillary Capillary
Fuse A 3.15 3.15
Sound Pressure Level (H/M/L) dB (A) 45/43/41 45/43/41
Sound Power Level ((H/M/L) dB (A) 55/53/51 55/53/51
Climate Type T1 T1
Isolation I I
Moisture Protection IPX0 IPX0
Permissible Excessive Operating Pressure for the
Discharge Side MPa 1.7 1.7
Permissible Excessive Operating Pressure for the
Suction Side MPa 0.6 0.6
Dimension (WXHXD) mm 343X525X270 343X525X270
Dimension of Carton Box (LXWXH) mm 391X310X569 391X310X569
Dimension of Package (LXWXH) mm 394X313X584 394X313X584
Application Area m222.4 28
Net Weight kg 15.0 15.5
Gross Weight kg 16.5 17.0
Refrigerant R134a R134a
Refrigerant Charge kg 0.13 0.20
Bucket Capacity L 4.0/4.6 4.0/4.6
Control Type Electronic Electronic
Evaporator
Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm Φ7 Φ7
Row-n Gap mm 1-1.3 1-1.3
Coil Length (LXDXW) mm 235X12.7X190.5 235X12.7X190.5
Condenser
Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm Φ7 Φ7
Rows-n Gap mm 1-1.4 2-1.4
Coil Length (LXDXW) mm 235X12.7X190.5 235X12.7X190.5
Compressor
Compressor Manufacturer/Trademark RECHI PRECISION CO.,LTD/
RECHI
RECHI PRECISION CO.,LTD/
RECHI
Model 39E0G3HR&F^YA 39E0G3HR&F^YA
Type Rotary Rotary
Power Input W 213 213
Overload Protector UP3-016 URP-191-78
L.R.A. A 3.4 3.4
Working Current A 1.2 1.4
The above data is subject to change without notice; please refer to the nameplate of the unit.

10
Service Manual
Installation and Maintenance
The above data is subject to change without notice; please refer to the nameplate of the unit.
Model GDN24AH-K4EBB3C
Product Code CK051025700
Power Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Rated Dehumidication Capacity L/h 0.50
Power Input W 330
Current Input A 1.50
Set Humidity Range % 35~80
Air Flow Volume(H/M/L) m3/h 180/160/140
Fan Motor Speed(H/M/L) r/min 1150/1000/850
Fan Motor Power Output W 10
Fan Motor RLA A 0.16
Fan Motor Capacitor μF 1.5
Fan Type Centrifugal
Fan Diameter Length(DXL) mm Φ180X76.5
Throttling Method Capillary
Fuse Current A 3.15
Sound Pressure Level(H/M/L) dB (A) 47/45/43
Sound Power Level(H/M/L) dB (A) 57/55/53
Climate Type T1
Isolation I
Moisture Protection IPX0
Permissible Excessive Operating Pressure for the
Discharge Side MPa 1.7
Permissible Excessive Operating Pressure for the
Suction Side MPa 0.6
Dimension (WXHXD) mm 343X525X270
Dimension of Carton Box(LXWXH) mm 391X310X569
Dimension of Package(LXWXH) mm 394X313X584
Application Area m233.6
Net Weight kg 16
Gross Weight kg 17.5
Refrigerant R134a
Refrigerant Charge kg 0.24
Bucket Capacity L 4.0/4.6
Control Type Electronic
Evaporator
Evaporator Form Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Φ7
Evaporator Row-n Gap mm 2-1.3
Evaporator Coil Length (LXDXW) mm 235X25.4X190.5
Condenser
Condenser Form Aluminum Fin-copper Tube
Condenser Pipe Diameter mm Φ7
Condenser Rows-n Gap mm 2-1.4
Condenser Coil Length (LXDXW) mm 235X25.4X190.5
Compressor
Compressor Manufacturer RECHI PRECISION CO.,LTD/RECHI
Compressor Model 39E073HR&F^YA
Compressor Type Rotary
Compressor Power Input W 300
Compressor Overload Protector UP3-017
Compressor LRA. A 5.5
Compressor RLA A 1.4

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Service Manual
Installation and Maintenance
3.Outline Dimension Diagram
525
260
343
unit:mm
GDN10AH-K4EBB1C GDN12AH-K4EBB1C GDN16AH-K4EBB1C GDN20AH-K4EBB1C GDN24AH-K4EBB1C

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Service Manual
Installation and Maintenance
262
525
343
unit:mm
GDN10AH-K4EBB2C GDN12AH-K4EBB2C GDN16AH-K4EBB2C GDN20AH-K4EBB2C GDN24AH-K4EBB2C

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Service Manual
Installation and Maintenance
unit:mm
343
525
270
GDN10AH-K4EBB3C GDN12AH-K4EBB3C GDN16AH-K4EBB3C GDN20AH-K4EBB3C GDN24AH-K4EBB3C

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Service Manual
Installation and Maintenance
4.Refrigerant System Diagram
air in
evaporator
capillary
condenser
fan motor
air out
compressor
Dehumidifying principle of dehumidier:
When temperature is decreased to the temperature point of dew, water vapor in humid air will condensate. Dehumidier is
dehumidifying the air by using this principle.
During operation of the system, air will pass through evaporator and condenser in turn and then be discharged due to centrifugal
blade. When the air is passing through evaporator, refrigerant will absorb the heat in air to let its temperature decrease to the
temperature point of dew, water vapor in air will condensate. Condensate water comes into water tank through water tray, or is
discharged directly through drainage hose. The saturated low-temperature air passed through the evaporator will absorb the heat
when owing along the condenser, and then become the dry air. Under normal condition, the nearby air will become warm during
operation of dehumidier.

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Service Manual
Installation and Maintenance
Symbol Symbol Color Symbol Symbol Color Symbol Name
WH White GN Green COMP Compressor
YE Yellow BN Brown Grounding wire
RD Red BU Blue / /
YEGN Yellow/Green BK Black / /
VT Violet OG Orange / /
5.Electrical Part
5.1 Wiring Diagram
●Instruction
These circuit diagrames are subject to change without notice ,please refer to the one supplied with the unit.
PE
YEGN
CN4
SENSOR
ST
HUMIDITY
AC-L
YEGN
C1
C
RD
YEGN(GN)
BU(WH)
BN(BK)
CN1
AP2
CN1
CN3
AP1
L
N
COMP.
M
WATER LEVEL SWITCH
N1
PE
POWER
FAN
MOTOR
PE
YEGN
PE
COMP
SA
COM NO
BU BN
CN2
K1
N
PE
TUBE
RT1
TUBE
TEMP.SENSOR
ELECTRIC BOX
C2
YE
BU
BU
R
S

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Service Manual
Installation and Maintenance
Silk Screen on Main Board
5.2 PCB Printed Diagram
● Top view
● Bottom view
No. Name Description No. Name Description
1Needle stand of board
connection wire Connect to display board 4 Interface of neutral wire Connect to neutral wire of commercial wire
2 Needle stand of fan Connect to fan 5 Interface of compressor Connect to compressor
3 Interface of live wire Connect to live wire of
commercial wire 6Needle stand of water blow protection switch
Connect to water blow
protection switch
6 3 5
4
1
2

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Service Manual
Installation and Maintenance
Silk Screen on Display Board
● Top view
● Bottom view
No. Name Description No. Name Description
1Needle stand of pipe
temperature sensor
Connect to pipe temperature
sensor 12 Set humidity button Increase set humidity button
2 Timer 4H indicator Timer 4H indicator is on 13 Set humidity button Decrease set humidity
button
3 Med fan step indicator Med fan step indicator is on 14 Fan speed button Preset fan speed button
4 High fan step indicator High fan step indicator is on 15 Low fan step indicator Low fan step indicator is
on
5 Dual-8 digital display tube Display ambient humidity or
preset temperature 16 Timer button Preset timer time button
6 Power supply indicator Power supply indicator is on 17 Timer 2H indicator Timer 2H indicator is on
7
Neddle stand of humidity
and ambient temperature
sensor
Connect to humidity and
ambient temperature sensor // /
8 Connection wire of board Connect to mainboard / / /
9 Filter reset button Filter reset button / / /
10 Remind indicator of
cleaning lter
Remind indicator of cleaning
lter is on / / /
11 On/off button On/off button / / /
1
23 4 5 6
7
8
9101112
1314151617

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Service Manual
Installation and Maintenance
6.Function and Control
6.1 Control Panel Instruction
Clean the Filter
indicator light
Continuous operation on
indicator light
Bucket full light indicates
bucket needs to be emptied
or it is not in the proper place.
4 hour or 2 hour
delay on/off
indicator lights
High，Mid and Low fan
indicator lights
Power On
indicator light
1.ON/OFF Pad
Press to turn the dehumidier on or off.
2.FILTER Pad
After 250 hours of operation, the Clean the Filter indicator light will glow to remind you to clean the lter. Remove the lter and
clean it. Press to turn off the Clean the Filter light. See the Care and Cleaning section.
3.Humidity Set Control Pads
The humidity level can be set within a range of 80% RH (Relative Humidity) to 35% RH (Relative Humidity) in 5% reduce or at
CO for continuous operation.
NOTE: If CO (Continuous) is selected, the dehumidier will operate continuously at its maximum dehumidication settings if
attached to a hose to drain or until the bucket is full.
For drier air, press the - pad and set to a lower percent value (%).
For damper air, press the + pad and set to a higher percent value (%).
When you first use the dehumidifier, set the humidity control to 45% or 50%. Allow at least 24 hours for the dehumidifier to
achieve the humidity level. If you still have damper air than desired, set the humidity level to a lower setting or select Continuous
for maximum dehumidication.
This unit has 3-min lag due to the device for protecting circuit .In order to prolong the compressors working life, the compressor
will not start until the unit has run for 3 minutes.
4.Display
Shows the set % humidity level while setting, then shows the actual (+/– 5% accuracy) room % humidity level.
5.FAN SPEED Pad
Controls the fan speed. Press to select High or Mid or Low fan speed.
Set the fan control to High for maximum moisture removal. When the humidity has been reduced and quiet operation is preferred,
set the fan control to Mid or Low.
6.TIMER Pad
If unit is turned on and running in timer mode for 2hr or 4hr,can turn off the unit. When unit stand by and running in timer mode
for 2hr or 4hr can turn on the unit.
Other Features
BUCKET FULL Light
Glows when the bucket is ready to be emptied, or when the bucket is removed or not replaced in the proper position.
Alarm
If the bucket is full or missing for more than three minutes, an alarm will sound for about 10 seconds to remind you to empty and
replace the bucket.
Auto Shut Off
The Water Level Control Switch shuts off the dehumidier when the bucket is full, or when the bucket is removed or not replaced
in the proper position.
Auto Defrost
When frost builds up on the evaporator coils, the compressor will cycle off and the fan will continue to run until the frost
disappears.
Power Outage
In the case of a power outage or interruption, the unit will automatically re-start, in the settings last used, after the power is
restored.