Specifications
HighInletTemperatureRefrigeratedAirDryer
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gasby-passvalve(orconstantexpansion
valve) to lower refrigerant pressure to
required settings.
2. Low refrigerant readings generally indicate:
• Lowambienttemperature-Provideambient
temperaturesabove15°F.
• Refrigerantcontrolsettingtoolow-Adjust
hotgasby-passvalve(orconstantexpansion
valve) to raise refrigerant pressure to
required settings.
• Lossofrefrigerant-CallTechnicalService
or a qualified refrigeration service.
Condensate Removal
The high inlet temperature refrigerated air dryer
uses a refrigeration circuit to cool the compressed
air thus condensing the moisture. The moisture is
separated from the dry air and purged out through
an automatic drain.
1. Condensate downstream of dryer:
• Iftheunitisequippedwithautomaticdrain
override switch, push manual override
button to test drain flow.
• Ensureautomaticelectronictimer(if
applicable) is functioning properly.
• Ensuremoistureseparator(and
coalescer) drain lines are free from blockage.
• Iftheunitisequippedwithy-strainer,
disassemble and clean.
• Ifoilisdownstreamfromthedryer:
- Oil coalescer element is saturated.
-Dryernotturnedonduringairusage.
WARNING!
Before any service or maintenance
work is performed on the high inlet
temperature series refrigerated air dryer
system, disconnect power supply and
lock out power supply and depressurize
system before performing maintenance
or service work.
Other
Sometimesawateroroilproblemdownstream
from the dryer can be identified by an inadvertent
action or inaction by the operator.
• Dryernotturnedonbeforeairusage.
• By-passvalvesinwrongposition.
• Airusageexceedingdryercapacity.
• Oilcoalescerelementnotchangedas
needed.
• Automaticdrainsnotmaintained.