Aircel VF-10 Installation And Operation Manual page 25

Problem
High refrigerant suction
pressure, suction gauge
reading out of range and
water downstream of
refrigeration dryer.
Low refrigerant suction
pressure, suction gauge
reading out of range and/
or refrigeration compressor
covered with ice.
Compressor oil
downstream of
refrigerated air dryer.
Probable Cause
Refrigeration circuit
hot gas bypass valve out of
adjustment or defective.
Refrigeration expansion
valve or TXV adjustment
fitting out of adjustment.
Refrigeration circuit hot
gas bypass valve out of
adjustment or defective.
Refrigeration expansion
valve or TXV adjustment
fitting out of adjustment
and is not feeding enough
refrigerant to the evaporator.
Excessive pressure drop
on the high side of the
refrigeration circuit.
Check optional prefilter
condensate drain for
failure.
Failed or plugged
prefilter element.
Air compressor injecting
excessive oil into the
airstream.
Non-Cycling Refrigerated Air Dryer
Remedy
Contact technical support for assistance.
Contact technical support for assistance.
Contact technical support for assistance.
Contact technical support for assistance.
Check for a plugged in line filter dryer or receiver
on the refrigeration circuit that could be causing
these restrictions.
Dismantle prefilter drain and clean or replace.
Check optional prefilter and replace element.
Check air compressor for oil leak into the air
stream, check air oil separator element for
failure.
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