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Instruction book
Condition
Safety valve blows after
loading
Compressor element outlet
temperature or delivery air
temperature above normal
Cooling air fan does not deliver
enough air.
Faults and remedies, dryer
For all references hereafter, consult section
Condition
Pressure dew point too
high
2920 7196 21
Fault
Oil level too high
Oil separator defective
Inlet valve malfunctioning
Minimum pressure valve
malfunctioning
Safety valve out of order
Oil separator element clogged
Compressor element out of order Consult your supplier
Oil level too low
Insufficient cooling air or cooling
air temperature too high
Oil cooler clogged
Bypass valve malfunctioning
Air cooler clogged
Compressor element out of order Consult your supplier
Unit shuts down due to
overtemperature, fan overload,
too high oil consumption or less
FAD.
Air
dryer.
Fault
Air inlet temperature too
high
Ambient temperature too
high
Shortage of refrigerant
Refrigerant compressor
does not run
Evaporator pressure too
high
Remedy
Check for overfilling. Release
pressure and drain oil to
correct level.
Replace oil separator element
Have valve checked
Have valve checked
Have valve replaced
Have oil separator element
replaced
Check and correct
Check for cooling air
restriction or improve
ventilation of the compressor
room. Avoid recirculation of
cooling air. If installed, check
capacity of compressor room
fan
Clean cooler
Have valve tested
Clean cooler
Fan rotates in the wrong
direction due to wrong
electrical connection.
Remedy
Check and correct; if necessary, clean
the aftercooler of the compressor
Check and correct; if necessary, draw
cooling air via a duct from a cooler
place or relocate the compressor
Have circuit checked for leaks and
recharged
See below
See below
95
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