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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 Dehumidification 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)

m

3

/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

m

2

33.6

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-fin 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-fin 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

Summary of Contents for GDN10AH-K4EBB1C

Page 1: ...ce 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...

Page 2: ...Control Panel Instruction 18 6 2 Introduction of Basic Mode Function 19 Part Maintenance 21 7 Notes Maintenance 21 8 Maintenance 22 8 1 Error Code 22 8 2 Malfunction Detection Flowchart 23 8 3 Mainte...

Page 3: ...nical Information Models GDN10AH K4EBB2C GDN12AH K4EBB2C GDN16AH K4EBB2C GDN20AH K4EBB2C GDN24AH K4EBB2C GDN10AH K4EBB3C GDN12AH K4EBB3C GDN16AH K4EBB3C GDN20AH K4EBB3C GDN24AH K4EBB3C GDN10AH K4EBB1C...

Page 4: ...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 391X3...

Page 5: ...cessive 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 B...

Page 6: ...ssible 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...

Page 7: ...e 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 3...

Page 8: ...ermissible 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 Dimensio...

Page 9: ...ssible 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...

Page 10: ...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 m2...

Page 11: ...ressure 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 Appli...

Page 12: ...ssible 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...

Page 13: ...11 Service Manual Installation and Maintenance 3 Outline Dimension Diagram 525 260 343 unit mm GDN10AH K4EBB1C GDN12AH K4EBB1C GDN16AH K4EBB1C GDN20AH K4EBB1C GDN24AH K4EBB1C...

Page 14: ...12 Service Manual Installation and Maintenance 262 525 343 unit mm GDN10AH K4EBB2C GDN12AH K4EBB2C GDN16AH K4EBB2C GDN20AH K4EBB2C GDN24AH K4EBB2C...

Page 15: ...13 Service Manual Installation and Maintenance unit mm 343 525 270 GDN10AH K4EBB3C GDN12AH K4EBB3C GDN16AH K4EBB3C GDN20AH K4EBB3C GDN24AH K4EBB3C...

Page 16: ...vaporator 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 th...

Page 17: ...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 HUMI...

Page 18: ...d 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 com...

Page 19: ...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...

Page 20: ...el to a lower setting or select Continuous for maximum dehumidification This unit has 3 min lag due to the device for protecting circuit In order to prolong the compressors working life the compressor...

Page 21: ...ively compressor and fan will stop operation Meanwhile LED will be off buttons are invalid and dual 8 nixie tube will display L1 d When theres multiple malfunctions the error codes will be displayed i...

Page 22: ...unit is off The buzzer will not give out a beep after timer time reaches Timer time is every 30min which recorded by memory function read in memory slug 6 Buzzer When the controller is energized or r...

Page 23: ...the specialized power cord or connection wire from the manufacture or distributor Prohibit prolong the wire by yourself 7 Replace the fuse with a new one of the same specification if it is burnt down...

Page 24: ...table for temperature sensor 4 Main board is broken 2 Malfunction of tube temp sensor F2 1 The wiring terminal between evaporator temperature sensor and main board is loosened or poorly contacted 2 T...

Page 25: ...no no no yes yes Malfunction is removed no yes yes no Is the wiring terminal between temperature sensor and the controller loosened or poor ly contacted Is there short circuit due to trip over of the...

Page 26: ...es yes yes yes no no no no no no End Check the connection Is malfunction eliminated Is malfunction Is malfunction eliminated eliminated Replace the display board with the same model Replace the humidi...

Page 27: ...ocked Clean the filter Placing position of water tank is improper Check whether therere obstacles around the dehumidifier blocked the air outlet Make sure therere no obstacles around the dehumidifiers...

Page 28: ...he drainage channel Possible causes Discriminating method dehumidifier status Troubleshooting Wrong wire connection or poor connection Check the wiring status according to circuit diagram Connect wire...

Page 29: ...27 Service Manual Installation and Maintenance 9 Exploded View and Parts List 1 2 3 4 5 6 11 12 13 17 16 15 14 18 24 32 31 30 8 23 22 21 40 34 37 39 43 42 33 29 26 19 35 36 25 20 27 7 9 10 28 38 44 41...

Page 30: ...Cover Plate 20126179 20126179 1 20 Handle 26236023 26236023 1 21 Capillary Sub assy 03000600360 03000600355 1 22 Condenser Sub Assy 01136037 01136038 1 23 Evaporator Sub Assy 01036036 01036037 1 24 F...

Page 31: ...4 1 19 Cover Plate 20126179 20126179 1 20 Handle 26236023 26236023 1 21 Capillary Sub assy 03000600263 03000600264 1 22 Condenser Sub Assy 01136038 01136039 1 23 Evaporator Sub Assy 01036037 01036047...

Page 32: ...69 1 18 Motor Support 24216094 1 19 Cover Plate 20126179 1 20 Handle 26236023 1 21 Capillary Sub assy 03000600207 1 22 Condenser Sub Assy 01136040 1 23 Evaporator Sub Assy 01036103 1 24 Filter Sub Ass...

Page 33: ...Cover Plate 20126179 20126179 1 20 Handle 26236023 26236023 1 21 Capillary Sub assy 03000600360 03000600355 1 22 Condenser Sub Assy 01136037 01136038 1 23 Evaporator Sub Assy 01036036 01036037 1 24 F...

Page 34: ...4 1 19 Cover Plate 20126179 20126179 1 20 Handle 26236023 26236023 1 21 Capillary Sub assy 03000600263 03000600264 1 22 Condenser Sub Assy 01136038 01136101 1 23 Evaporator Sub Assy 01036037 01036047...

Page 35: ...69 1 18 Motor Support 24216094 1 19 Cover Plate 20126179 1 20 Handle 26236023 1 21 Capillary Sub assy 03000600207 1 22 Condenser Sub Assy 01136040 1 23 Evaporator Sub Assy 01036103 1 24 Filter Sub Ass...

Page 36: ...Cover Plate 20126179 20126179 1 20 Handle 26236023 26236023 1 21 Capillary Sub assy 03000600360 03000600355 1 22 Condenser Sub Assy 01136037 01136038 1 23 Evaporator Sub Assy 01036036 01036037 1 24 F...

Page 37: ...4 1 19 Cover Plate 20126179 20126179 1 20 Handle 26236023 26236023 1 21 Capillary Sub assy 03000600263 03000600264 1 22 Condenser Sub Assy 01136038 01136039 1 23 Evaporator Sub Assy 01036037 01036047...

Page 38: ...69 1 18 Motor Support 24216094 1 19 Cover Plate 20126179 1 20 Handle 26236023 1 21 Capillary Sub assy 03000600207 1 22 Condenser Sub Assy 01136040 1 23 Evaporator Sub Assy 01036103 1 24 Filter Sub Ass...

Page 39: ...e water tank assembly 3 Remove front panel 2 Remove filter water tank assembly Pull the water tank onwards to remove the water tank assembly Press the 2 clasps of filter to make the groove loosened th...

Page 40: ...electric box cover screws Unscrew screws fixing face piece Open the clasps remove humidity sensor and wiring connecting main board then pull the face piece assembly outwards Unscrew 4 screws fixing c...

Page 41: ...el switch compressor wiring connect to mainboard unscrew screws fixing electric box to remove electric box assembly Remove the motor wire connect to mainboard and ground wire connect to evaporator sid...

Page 42: ...ch to remove liquid level switch Unscrew 2 screws fixing condenser and evaporator assembly unsolder spots weld of condenser and evaporator to remove them Note Discharge the refrigerant before unsolder...

Page 43: ...bly Remove suction pipe and discharge pipe from the unsoldering place of compressor Note Discharge the refrigerant first before unsoldering Unscrew 3 foot nuts with washer fixing compressor by wrench...

Page 44: ...eight upward handle the bottom panel and pull it outwards 4 Remove display board Unscrew screws fixing display board then the display board will separate from control cover plate 3 Remove control cove...

Page 45: ...nd Maintenance Procedure Step 20 Remove electric box assembly Unscrew screws fixing fan and compressor capacity then remove fan capacity and compressor capacity pull the mainboard along the two sides...

Page 46: ...62 60 8 16 84 85 84 2 29 39 40 39 2 4 63 62 6 17 86 87 86 30 41 42 41 5 64 65 64 4 18 88 89 87 8 31 43 44 42 8 6 66 67 66 2 19 90 89 6 32 45 44 6 7 68 69 68 20 91 92 91 4 33 46 47 46 4 8 70 71 69 8 2...

Page 47: ...72 2 439 111 0 737 5 63 46 34 10 2 73 2 358 112 0 717 4 60 23 35 9 779 74 2 28 113 0 697 3 57 18 36 9 382 75 2 206 114 0 678 2 54 31 37 9 003 76 2 133 115 0 66 1 51 59 38 8 642 77 2 064 116 0 642 0 49...

Page 48: ...34 13 59 73 3 144 112 0 956 4 80 31 35 13 04 74 3 04 113 0 93 3 76 24 36 12 51 75 2 94 114 0 904 2 72 41 37 12 76 2 844 115 0 88 1 68 79 38 11 52 77 2 752 116 0 856 0 65 37 39 11 06 78 2 663 117 0 83...

Page 49: ...32 101 3 22 15 362 9 24 51 41 63 10 93 102 3 13 14 342 8 25 49 19 64 10 54 103 3 04 13 323 9 26 47 08 65 10 18 104 2 96 12 306 2 27 45 07 66 9 83 105 2 87 11 289 6 28 43 16 67 9 49 106 2 79 10 274 29...

Page 50: ...6 438 812 32 73 954 70 17 370 108 5 191 5 416 865 33 70 902 71 16 782 109 5 042 4 396 114 34 67 993 72 16 217 110 4 898 3 376 487 35 65 218 73 15 673 111 4 758 2 357 918 36 62 572 74 15 150 112 4 624...

Page 51: ...76 232 0 317 143 2 032 173 1 038 203 0 565 233 0 311 144 1 983 174 1 017 204 0 553 234 0 305 145 1 936 175 0 996 205 0 542 235 0 300 146 1 890 176 0 975 206 0 531 236 0 295 147 1 846 177 0 956 207 0 5...

Page 52: ...0 28 42 26 34 24 42 22 65 64 48 75 44 81 41 48 38 59 36 05 33 77 31 24 28 93 26 80 24 83 63 53 64 49 31 45 65 42 48 39 68 37 17 34 34 31 74 29 36 27 15 62 59 14 54 36 50 32 46 82 43 73 40 97 37 83 34...

Page 53: ...84 22 13 20 51 18 97 17 73 16 55 15 42 14 34 61 30 33 28 17 26 14 24 23 22 42 20 71 19 37 18 10 16 88 15 72 60 33 47 31 05 28 78 26 64 24 62 22 70 21 24 19 84 18 50 17 23 59 37 00 34 31 31 77 29 39 2...

Page 54: ...15 942 75 863 43 787 81 715 55 646 36 30 1906 00 1731 91 1568 38 1414 20 1268 36 1130 00 1034 60 943 64 856 73 773 51 29 2300 00 2089 81 1892 37 1706 22 1530 13 1363 08 1244 55 1131 54 1023 56 920 17...

Page 55: ...0 00 74 13 68 48 63 03 57 78 52 70 49 02 45 46 42 00 38 65 44 89 00 82 54 76 32 70 33 64 54 58 96 54 75 50 69 46 74 42 92 43 101 00 93 48 86 25 79 28 72 55 66 06 61 28 56 65 52 17 47 82 42 115 00 106...

Page 56: ...4 10 3 91 3 73 3 55 3 37 3 20 3 07 2 94 2 82 2 70 2 58 68 4 40 4 19 3 99 3 79 3 60 3 41 3 27 3 13 2 99 2 86 2 73 67 4 71 4 49 4 27 4 06 3 85 3 65 3 49 3 34 3 19 3 05 2 90 66 5 08 4 83 4 59 4 36 4 13 3...

Page 57: ...162 29 148 50 135 08 122 00 114 10 106 40 98 87 91 52 84 34 31 227 00 209 28 192 04 175 27 158 93 143 00 133 62 124 46 115 52 106 79 98 25 30 268 00 247 75 228 05 208 88 190 20 172 00 160 04 148 37 1...

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