Manitowoc QD0422A Especificaciones Pagina 78
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70 Part Number STH044 10/13
Discharge Pressure Low Checklist
NOTE: Do not limit your diagnosis to only the items
listed in the checklists.
Problem Cause
Improper
installation
Refer to “Installation/Visual Inspection
Checklist.”
Improper
refrigerant
charge
Undercharged
Wrong type of refrigerant
Other
Low ambient temperature
Non-Manitowoc components in system
High side refrigerant lines/component
restricted (before mid-condenser)
Suction pressure is too low and affecting
discharge pressure. (Refer to “Suction
Pressure Low Checklist.”)
No water or insufficient pressure
Expansion valve incorrectly adjusted
Defective compressor
Moisture in refrigeration system
- Manitowoc 1
- Safety Notices 3
- Procedural Notices 3
- ! Warning 4
- Table of Contents 9
- 2 Part Number STH044 10/13 10
- Part Number STH044 10/13 3 11
- 4 Part Number STH044 10/13 12
- General Information 13
- Commercial Warranty 14
- Part Number STH044 10/13 7 15
- 8 Part Number STH044 10/13 16
- Residential Warranty 17
- 10 Part Number STH044 10/13 18
- Part Number STH044 10/13 11 19
- 12 Part Number STH044 10/13 20
- Installation 21
- Ice Machine Heat of Rejection 22
- Electrical Service 23
- Supply and Drains 24
- Part Number STH044 10/13 17 25
- 18 Part Number STH044 10/13 26
- Operation 27
- 20 Part Number STH044 10/13 28
- Part Number STH044 10/13 21 29
- SEQUENCE OF OPERATION CHART 30
- Part Number STH044 10/13 23 31
- 24 Part Number STH044 10/13 32
- Maintenance 33
- 26 Part Number STH044 10/13 34
- Part Number STH044 10/13 27 35
- 28 Part Number STH044 10/13 36
- Amount of Cleaner 36
- Part Number 000000084 36
- Part Number STH044 10/13 29 37
- 30 Part Number STH044 10/13 38
- Part Number STH044 10/13 31 39
- Part Number STH044 10/13 33 41
- Part Number STH044 10/13 35 43
- And Sanitizing 44
- Part Number STH044 10/13 37 45
- 6. Remove front cover 46
- A. Lift up on front cover 46
- 7. Remove side panels 46
- 8. Remove ice chute cover 47
- B. Lift to remove cover 47
- 9. Lift out ice damper 48
- Part Number STH044 10/13 41 49
- 42 Part Number STH044 10/13 50
- Part Number STH044 10/13 43 51
- 44 Part Number STH044 10/13 52
- Part Number STH044 10/13 45 53
- 46 Part Number STH044 10/13 54
- 18. Remove ice deflector 55
- 48 Part Number STH044 10/13 56
- Part Number STH044 10/13 49 57
- 50 Part Number STH044 10/13 58
- Dump Valve Disassembly 59
- 52 Part Number STH044 10/13 60
- Part Number STH044 10/13 53 61
- 54 Part Number STH044 10/13 62
- Troubleshooting 63
- 56 Part Number STH044 10/13 64
- SafeGuards 65
- 58 Part Number STH044 10/13 66
- Reset Procedure 67
- 60 Part Number STH044 10/13 68
- Ice Machine Will Not Run 69
- 62 Part Number STH044 10/13 70
- Part Number STH044 10/13 63 71
- 64 Part Number STH044 10/13 72
- Part Number STH044 10/13 65 73
- Refrigeration Diagnostics 74
- WATER SYSTEM CHECKLIST 75
- 68 Part Number STH044 10/13 76
- Component Check Procedures 81
- Part Number STH044 10/13 75 83
- Step 3 Check for Continuity 83
- Reading Result 83
- Open Replace the switch 83
- 76 Part Number STH044 10/13 84
- Part Number STH044 10/13 77 85
- 78 Part Number STH044 10/13 86
- Part Number STH044 10/13 79 87
- 80 Part Number STH044 10/13 88
- Part Number STH044 10/13 81 89
- 82 Part Number STH044 10/13 90
- Depressed Closed 90
- Released Open 90
- Part Number STH044 10/13 83 91
- Part Number STH044 10/13 87 95
- 88 Part Number STH044 10/13 96
- Part Number STH044 10/13 89 97
- 90 Part Number STH044 10/13 98
- 92 Part Number STH044 10/13 100
- Important 101
- 94 Part Number STH044 10/13 102
- System Contamination Clean-Up 103
- Contamination Cleanup Chart 104
- Part Number STH044 10/13 101 109
- USING PINCH-OFF TOOL 109
- 102 Part Number STH044 10/13 110
- Component Specifications 111
- Refrigerant Pressure Charts 113
- SELF-CONTAINED AIR-COOLED 114
- 108 Part Number STH044 10/13 116
- Diagrams 117
- 110 Part Number STH044 10/13 118
- Electronic Control Board 119
- 112 Part Number STH044 10/13 120
- RNS012 - RNS020 121
- 114 Part Number STH044 10/13 122
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