Cag purification LTE3 HGV, Installation, Operation, Maintenance And Parts Manual

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GB
6.3 TROUBLE SHOOTING
The troubleshooting and resultant service work should be carried out by qualified personnel.
Particular attention must be paid in case of service work on the refrigerating circuit. The
refrigerating fluid, if under pressure, can cause serious injury to skin and eyes.
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.
Verify/replace compressors electric parts (thermal protection, start
relay, start capacitor).
If the compressor still doesn’t work , replace it.
The fan doesn’t work. Verify the electric wiring.
The DMC6 is out of setting - see DMC6 “Set-Up” section.
The DMC6 is faulty - replace it
If the fan still doesn’t work , replace it.
DewPoint is too high. The dryer is OFF - switch it ON.
The refrigeration compressor doesn’t work - see specific point.
The inlet air is too hot - restore the nominal conditions - install an
aftercooler before the dryer.
The inlet air flow rate is higher than the capacity of the dryer - reduce
the flow rate - restore normal conditions.
The fan doesn’t work - see the specific point.
The ambient temperature is too high or the room aeration is
insufficient - provide proper ventilation.
The condenser unit is dirty - clean it.
The dryer doesn’t drain the condensate - 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 refrigeration circuit - contact a refrigeration
engineer.
DewPoint too low. The fan is always ON - DMC6 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 DewPoint is too low - the condensate is frozen and blocks the air
flow - see specific point.
Check for throttling of any flexible connection hoses (if used).
The dryer continuously drains
condensate.
The drain solenoid valve is jammed - remove and clean it.
Verify the electric wiring.
The DMC6 is faulty - replace it.