Aircel AES Series, Руководство пользователя

Страница: 37 / 84

VF, DHT, AES Series Manual |
Refrigerated Air Dryer User Manual
33
Problem Probable Cause Remedy
High refrigeration
circuit head pressure
(compressor is
overloaded and
gauge is reading out
of recommended
pressure range)
Refrigeration condenser coil fouled or
dirty or air flow blocked
Clean/blow off condensing coil of dirt or debris from the
inside out. Clear area in front of condensing coil of any
items blocking airflow to coil.
Condenser fan motor not working
properly
Check fan motor for proper voltage and amp draw, repair
or replace fan motor
Defective fan control switch Repair switch or replace
Ambient temperature too high at
refrigeration dryer location
Cool ambient temperature around location of
refrigeration dryer down to a maximum of 100°F or
relocate dryer to a different area with lower ambient
temperature
Compressed air temperature entering
the refrigeration dryer is too high
Check compressed air inlet temperature to ensure it
is within the operating parameters listen in the Design
Parameters section. Check air compressor aftercooler for
proper operation.
Faulty heat exchanger, compressed air
leaking into refrigeration circuit
Repair or replace evaporator or heat exchanger and
recharge with refrigerant
Low refrigeration
circuit head pressure
(gauge is reading out
of recommended
pressure range)
Ambient temperature too low at
refrigeration dryer location
Increase ambient temperature at refrigeration dryer
location or relocate dryer. Head pressure control valve
may be required for low ambient use. Contact technical
support for assistance.
Refrigeration dryer circuit low on
refrigerant
Refrigeration circuit low on refrigerant; locate leak in
refrigeration circuit, repair, and recharge according to
specifications.
Refrigeration compressor not working
properly or faulty
Check refrigeration compressor for proper voltage and
amp draw; repair or replace refrigeration compressor.
Compressed air temperature to
refrigeration dryer too low
The inlet compressed air temperature must be higher
than 40°F. If compressed air temperature is lower than
40°F, turn refrigerated air dryer off. Air may pass through
the dryer under this condition, once the compressed
air temperature has increased to 44°F, the dryer must
be turned back on to avoid a high refrigerant pressure
situation.
7.7 AES Series Troubleshooting Guide