ICP iDRY iRDP CT 100 Instructions For Installation And Operation Manual Download

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Maintenance, troubleshooting, spare parts and dismantling

iDRY iRDP CT 20-500

Prior to carrying out maintenance works at the dryer, switch it off and wait for at least 30 minutes.

Caution!

Hot surfaces!

During operation, several components can reach surface temperatures of more than 140°F (60°C).
There is the risk of burns.

All components concerned are installed inside of the closed housing. The housing must only be opened
by certified skilled personnel.
Some components can reach high temperatures during operation. Avoid any contact until the system or
the component has cooled down.

FAULT POSSIBLE

REASON

– SUGGESTED MEASURE



The display of DMC51

is not lit



Verify that the system is powered.



Verify the electric wiring.



If installed – HPS pressure switch has been activated – see specific point



iRDP CT 200-500 3phase - Blow of fuse (FU2 on the electric diagram) of the auxiliary
circuit - replace it and check the proper operation of the dryer.



iRDP CT 200-500 3phase – The remote control is OFF (see contact on terminals 1-2
on electric diagram)



The compressor does

not work.



If ESS=YES (see section 8.12.7) – the Dew Point displayed on DMC51 is sufficiently
low, the led

is OFF, so the compressor is not active – wait that the temperature

becomes higher.



Activation of the compressor internal thermal protection – wait 30 minutes and then
retry.



Verify the electric wiring.



If installed – the KC relay is faulty – replace it



If installed – replace the internal thermal protection and/or the start-up relay and/or
the start-up capacitor and/or the working capacitor.



DMC51 – The led

is ON – see specific point.



If the compressor still does not work, replace it.



If ESS=YES (see

section 8.12.7) - The
compressor remains
OFF unexpected short
time.



The OFF time of the compressor is related to the actual dryer thermal load. If dryer is
running in low or no-load conditions and at mild/low ambient temperatures, and the
compressor remains OFF for too short time (less than 3-5 minutes), check which of the
following reasons is creating the malfunction:

1. The DewPoint probe T1 doesn’t correctly detect the temperature - ensure the sensor

is pushed into the bottom of probe well.

2. The thermal insulation of DewPoint probe T1 is damaged – restore the thermal

insulation

3. The ambient temperature is too high or the room aeration is insufficient - provide

proper ventilation.

4. The solenoid valve EVL is not operating correctly - see specific point.
5. If installed - The check valve CHV is jammed (open) - contact a ICP service

technician to replace it.



The fan of the

condenser does not
work



Verify the electric wiring.



PV pressure switch is faulty. Contact a ICP service technician.



iRDP CT 200-500 3phase- Blow of fuse (FU1-FU2 on the electric diagram) - replace it
and check the proper operation of the dryer.



There is a leak in the refrigerant circuit – contact a ICP service technician.