Manitowoc QM20 Technician's Handbook page 119
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Also See for QM20:
- Installation, use and care, and service manual (28 pages) ,
- Technician's handbook (20 pages) ,
- Installation, use and care, and service manual (26 pages)
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Suction Pressure High Checklist
Improper Installation
•
Refer to "Installation and Visual Inspection
Checklist" on page 104.
Discharge Pressure
•
Discharge pressure is too high, and is affecting
suction pressure, refer to "Discharge Pressure
High Checklist" on page 150.
Improper Refrigerant Charge
•
Overcharged
•
Wrong type of refrigerant
•
Non-condensables in system
Other
•
Non-Manitowoc components in system
•
Hot gas valve leaking
•
TXV flooding (check bulb mounting)
•
Defective compressor
Part Number 80-01111-9 7/10
119
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