Manitowoc S model Dokumentacja Strona 151

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Part Number 80-1230-9 10/10 151
ANALYZING SUCTION PRESSURE
NOTE: Analyze discharge pressure before analyzing
suction pressure.
High or low discharge pressure may be causing high
or low suction pressure.
Suction Pressure High Checklist
Problem Cause
Improper
installation
Refer to “Installation/Visual Inspection
Checklist.”
Discharge
pressure
Discharge pressure is too high and is
affecting suction pressure. Refer to
“Discharge Pressure High Checklist.”
Improper
refrigerant
charge
Overcharged
Wrong type of refrigerant
Non condensables in system
Other
Dump valve leaking
Non-Manitowoc components in system
TXV flooding (check bulb mounting and
insulation).
Defective compressor
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