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Finicompressors Artic 134-EVO luchtdroger Manual

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40069 Zola Predosa (BO) - ITALY
info@finicompressors.it
- GB -
6.2 TROUBLESHOOTING
The troubleshooting and the eventual checks have to be worked out by qualified personnel. Pay
particular attention in case of interventions on the refrigerating circuit. The refrigerating fluid, if
under pressure, while expanding could cause freezing burns and serious damage to the eyes,
should it get in contact with them.
SYMPTOM POSSIBLE CAUSE - SUGGESTED ACTION
The dryer doesn't start. Check for mains failure.
Verify the electric wiring.
The compressor doesn’t
work.
Activation of the compressor internal thermal protection - wait for 30
minutes, then retry.
Verify the electric wiring.
Replace the internal thermal protection of the compressor.
If the compressor still doesn’t work, replace it.
The fan of the condenser
doesn’t work.
Verify the electric wiring.
Pv pressure switch is faulty - contact a refrigeration engineer.
If the fan still doesn’t work, replace it.
DewPoint too high. The dryer doesn't start - see specific point.
The DewPoint probe doesn’t correctly detect the temperature - ensure the
sensor is pushed into the bottom of copper tube immersion well.
The condenser is dirty - clean it.
The dryer doesn’t drain the condensate - see specific point.
The ambient temperature is too high or the room aeration is insufficient -
provide proper ventilation.
The inlet air is too hot - restore the nominal conditions.
The condenser fan doesn’t work - see specific point.
The refrigerating compressor doesn’t work - see specific point.
The hot gas by-pass valve is out of setting - contact a refrigeration engineer
to restore the nominal setting.
There is a leak in the refrigerating fluid circuit - contact a refrigeration engineer.
The inlet air pressure is too low - restore the nominal conditions.
The inlet air flow rate is higher than the rate of the dryer - reduce the flow
rate - restore the normal conditions.
DewPoint too low. The fan is always ON - Pv pressure switch is faulty - replace it.
The hot gas by-pass valve is out of setting - contact a refrigeration engineer
to restore the nominal setting.
Excessive pressure drop
within the dryer.
The FS 018 Inlet filter - 1 micron is clogged - replace the cartridge.
The dryer doesn’t drain the condensate - see specific point.
The DewPoint is too low - the condensate is frost and blocks the air - see
specific point.
Check for throttling the flexible connection hoses (if installed).
The dryer doesn’t drain
the condensate.
The condensate drain service valve is closed - open it.
The condensate drain mechanical strainer is clogged - remove and clean it.
The drain solenoid valve is jammed - remove and clean it.
Verify the electric wiring.
The coil of the condensate drain solenoid valve burned out - replace it.
The DewPoint is too low - the condensate is frozen - see specific point.
The DTT11 Electronic Instrument is faulty - replace it.
The dryer continuously
drains condensate.
The drain solenoid valve is jammed - remove and clean it.
Try to remove the electric connector on the solenoid valve - if drain stop the
DTT11 Electronic Instruments is faulty - replace it.
Water within the line. The dryer is OFF - switch it ON.
Untreated air flows through the by-pass group - close the by-pass.
The dryer doesn’t drain condensate - see specific point.
DewPoint too high - see specific point.
… 19


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