Movincool CM25 Service Manual User Manual download pdf (Page 31)

Operation Section

For WMC supplied with the CM 25 serial number from 0113XXXXC25 to present

• If the reading of the room temperature value is not accurate, adjustment can be done by setting

the DIP switch located inside the WMC using the table shown below as reference.

• Label of model name is located on the back cover of WMC.

CAUTION

To avoid static electricity, do not touch the solder joints or the non-insulated parts on the

controller board.

< NOTE >

Set the DIP switch 4 to 8 to OFF positions.

ILL00683-00

56781234

DIP Switch

OFF

DIP Switch Position

4 ~ 8

Temperature

Values

OFF

DEFAULT

-1

OFF -2

OFF -3

OFF

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 88 89

SERVICE MANUAL 1
Nameplate Label 2
Table of Contents 3
Repair Section 5
1. PRECAUTIONS FOR SAFETY 6
2. SPECIFICATIONS 7
2.2 Technical Specifications 8
2.3 Characteristics 10
(2) Cooling capacity curve 11
(3) Power consumption curve 12
(4) Current consumption curve 13
< NOTE > 14
3. CONSTRUCTION 15
3.2 Internal Structure 16
3.4 Air Flow 17
3.3 Basic Construction 17
4. REFRIGERATION SYSTEM 18
Operation Section 19
4.2 Compressor 20
(3) Operation 21
4.3 Condenser 22
4.5 Evaporator 23
4.6 Accumulator 24
4.7 High-Pressure Switch 24
5. ELECTRICAL SYSTEM 25
5.2 Control Box 26
5.3 Power Supply Requirements 27
LCD Display 29
Unit Terminal 33
Warning Device 33
Relay Output Contactor 33
Fire Alarm Device 34
Open Dry Contact 34
5.8 Basic Operation 35
5.9 Compressor Operation 35
(1) When the WMC is connected 36
(2) When the MWT is connected 36
5.14 Anti-Frost Control 37
(Automatic Recovery Function) 37
5.17 Relay Board 38
12 12341234 39
DSW1 DSW2 DSW3 DSW4 39
5.18 Compressor 40
5.19 Fan Motor 41
5.20 Temperature Thermistor 42
5.21 Float Switch 42
6. TROUBLESHOOTING 43
6.2 Self-Diagnostic Codes 44
Alarm (buzzer) patterns 47
Alarm clear method 48
6.3 Troubleshooting Chart 50
(1) Display method 57
6.7 Initialize Fan Motor 61
6.8 TEST Mode 63
6.9 Basic Inspection 64
6.10 Inspection of Compressor 65
Temp.°F (°C) 66
(2) Refrigerant leak 67
(3) Insufficient refrigerant 67
7. DISASSEMBLY 68
7.2 Disassembly 69
(1) Relay board 76
(1) Proper brazing techniques 78
(4) Use of dry nitrogen gas 79
(5) Vertical joints 79
(2) Evacuation 82
(3) Checking vacuum 83
Refrigerant 84
Cylinder R-410A 84
(5) Evacuation (repeat) 85
(2) Removal of gauge manifold 87
9. REASSEMBLY 88

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Movincool CM25 Service Manual User Manual Page 31

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