Manitowoc Q130 Dokumentacja Strona 120

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120 Part Number 80-01111-9 7/10
Suction Pressure Low Checklist
Improper Installation
Refer to “Installation and Visual Inspection
Checklist” on page 104.
Discharge Pressure
Discharge pressure is too low, and is affecting
suction pressure, refer to “Freeze Cycle Discharge
Pressure Low Checklist”
Improper Refrigerant Charge
Undercharged
Wrong type of refrigerant
Other
Non-Manitowoc components in system
Improper water supply over evaporator refer to
“Water System Checklist” on page 105.
Loss of heat transfer from tubing on back side of
evaporator
Restricted/plugged liquid line drier
Restricted/plugged tubing in suction side of
refrigeration system
TXV starving
NOTE: Do not limit your diagnosis to only the items
listed in the checklists.
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