Atlas Copco ZR 132 User Manual

Condition Fault Remedy
Dryer inlet temperature too
high (due to increased
aftercooler air outlet
temperature or regeneration
cooler air outlet temperature
On ZR compressors :
• Check cooling water temperature and
regulate cooling water flow (Refer to
the Starting section.)
• Consult Atlas Copco Customer
Center in case of restriction in cooling
water system due to formation of
scale or dirt deposits
On ZT compressors :
• Check clogging of coolers, and solve
as described in section Coolers.
• Check for insufficient cooling air or
too high cooling air temperature, and
correct it
If temperature cannot be decreased
sufficiently, consult Atlas Copco Customer
Center.
Regeneration air outlet
temperature too low
Consult Atlas Copco Customer Center
Drain system malfunctioning
Inspect system and replace parts where
necessary
Dryer in normal operation, but
without any functioning of the
low load heater
Heater function desactivated, or possibly in
protection state. Consult Atlas Copco
Customer Center
Regeneration air inlet
temperature too low
Shut-off valve closed for dryer
by-pass
Open the valve
Operating pressure too low
Do not operate the dryer at a pressure
lower than the one specified in Compressor
data
Compressor loading periods
too short
Take necessary action to increase duration
of loading periods
Nozzle of ejector partly
obstructed
Remove and clean nozzle. Investigate
cause
Warning on heater outlet
sensor
Consult Atlas Copco Customer Center
Dryer rotation warnings for Full-Feature compressors
Fault/warning Action
Dryer rotation direction
Check that the fan of the dryer motor is rotating during load of the
compressor.
Check that the rotation direction of the dryer motor fan corresponds with the
arrow on the motor:
• OK: Check all connections of the rotation sensor following the
electrical diagram. Consult your Atlas Copco Customer Center.
• NOK: Switch off the voltage and reverse two of the input line
connections. Consult your Atlas Copco Customer Center.
Dryer rotation too slow Consult your Atlas Copco Customer Center.
Rotor standstill
Check that the fan of the dryer motor is rotating during load of the
compressor.
Instruction book
296 2920 1815 04

Atlas Copco ZR 132 Specifications

General

Brand	Atlas Copco
Model	ZR 132
Category	Air Compressor
Language	English