MUND CLIMA MH-10-V5 User manual

HU10530 to HU10531
DESHUMIDIFIER MH-V5
Service manual
English
MH-10-V5
MH-20-V5

Service Manual
Table of Contents
Part Ⅰ: Technical Information ............................................................ 3
1.Summary ...................................................................................................... 3
2.Specications ........................................................................................... 4
3.Outline Dimension Diagram .............................................................. 6
4.Refrigerant System Diagram ............................................................7
5.Electrical Part ............................................................................................8
5.1 Wiring Diagram ...........................................................................................8
5.2 PCB Printed Diagram ..................................................................................9
6.Function and Control .......................................................................... 11
6.1 Control Panel Instruction ........................................................................... 11
6.2 Introduction of Basic Mode Function ......................................................... 12
Part Ⅱ: Maintenance ............................................................................ 14
7.Notes Maintenance .............................................................................. 14
8.Maintenance ............................................................................................. 15
8.1 Error Code ................................................................................................. 15
8.2 Malfunction Detection Flowchart ............................................................... 16
8.3 Maintenance Method for Common Malfunction ........................................ 18
9.Exploded View and Parts List ........................................................ 20
10.Removal Procedure ........................................................................... 23
Appendix: ...................................................................................................... 30
Appendix 1: Reference Sheet of Celsius and Fahrenheit ............................... 30
Appendix 2: Resistance Table of Temperature Sensor ................................... 31
Appendix 3: Resistance Value Table of Humidity Sensor ............................... 36
2

1.Summary
Part Ⅰ: Technical Information
Models
MH-10-V5
MH-20-V5
Service Manual
3

The above data is subject to change without notice; please refer to the nameplate of the unit.
Model
Product Code CK051024000
Power Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Rated Dehumidifying Volume L/h 0.17
Power Input W 220
Power Current A 1.20
Set Humidity Range % 35~80
Air Flow Volume(H/M/L) m3/h 150/120/100
Fan Motor Speed (H/M/L) r/min 930/800/650
Output of Fan Motor W 6
Fan Motor Capacitor μF 1.0
Fan Type Centrifugal
Diameter Length(DXL) mm Φ180X76.5
Throttling Method Capillary
Fuse A 3.15
Sound Pressure Level (H/M/L) dB (A) 43/41/39
Sound Power Level ((H/M/L) dB (A) 53/51/49
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 m214
Net Weight kg 13
Gross Weight kg 14.5
Refrigerant R134a
Refrigerant Charge kg 0.08
Bucket Capacity L 4.0/4.6
Control Type Electronic
Evaporator
Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7
Row-n Gap mm 1-1.3
Coil Length (LXDXW) mm 235X12.7X190.5
Condenser
Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7
Rows-n Gap mm 1-1.4
Coil Length (LXDXW) mm 235X12.7X190.5
Compressor
Compressor Manufacturer/Trademark Shanghai Hitachi Electrical
Appliances Co.,Ltd/HIGHLY
Model BSA418CV-R1AUA
Type Rotary
Power Input W 213
Overload Protector URP-191-78
L.R.A. A 3.4
Working Current A 1.1
MH-10-V5
2.Specications
Service Manual
4

The above data is subject to change without notice; please refer to the nameplate of the unit.
Model
Product Code CK051023800
Power Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Rated Dehumidifying Volume L/h 0.41
Power Input W 300
Power Current A 1.5
Set Humidity Range % 35~80
Air Flow Volume(H/M/L) m3/h 180/160/140
Fan Motor Speed (H/M/L) r/min 950/860/740
Output of Fan Motor W 7
Fan Motor RLA A 0.13
Fan Motor Capacitor μF 1
Fan Type Centrifugal
Diameter Length(DXL) mm Φ180X76.5
Throttling Method Capillary
Fuse A 3.15
Sound Pressure Level (H/M/L) dB (A) 45/43/41
Sound Power Level ((H/M/L) dB (A) 55/53/51
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 m228
Net Weight kg 15.5
Gross Weight kg 17
Refrigerant R134a
Refrigerant Charge kg 0.2
Bucket Capacity L 4.0/4.6
Control Type Electronic
Evaporator
Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7
Row-n Gap mm 1-1.3
Coil Length (LXDXW) mm 235X12.7X190.5
Condenser
Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7
Rows-n Gap mm 2-1.4
Coil Length (LXDXW) mm 235X12.7X190.5
Compressor
Compressor Manufacturer/Trademark RECHI PRECISION CO.,LTD/
RECHI
Model 39E073HR&F^YA
Type Rotary
Power Input W 300
Overload Protector UP3-017
L.R.A. A 5.5
Working Current A 1.4
MH-20-V5
Service Manual
5

Service Manual
262
525
343
unit:mm
3.Outline Dimension Diagram
6

Service Manual
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.
7

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
Service Manual
8

Service Manual
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
9

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
Service Manual
10