Industrial Air IAD Serie Manual De Mantenimiento Y Operacion página 17

Condensate drain, strainer maintenance
The locally installed strainer on the condensate drain helps to trap dirt.
It is necessary to clean the Y-strainer depending on the quantity of the dirt present in the system to
ensure proper operation. All our models from IAD15 - 45 are equipped with this Y-strainer.
General comments
The solenoid drain is protected by a Y strainer filter to prevent damage to the solenoid valve seals from metal particles or
dust. This filter must be cleaned 1 week after the first start-up and then once per month. If this is not done, the filter will clog
and it will not be possible to purge the system correctly. Liquid phase water will appear in the compressed air network.
Procedure
1. Close the manual valve on the purging line (see the refrigeration/pneumatic circuit diagram)
2. Unscrew the filter lock nut.
3. Withdraw the metal mesh, clean and refit.
4. Check the good condition of the seal and replace if necessary
5. Tighten the filter lock nut.
6. Open the manual valve on the purging line.
*You must comply with the recommendations at the beginning of this chapter.
General comments
The solenoid valve must always be protected by a filter to ensure that solid particles do not prevent it from opening and
closing correctly. If particles do get through the filter and cause faulty operation of the solenoid purge valve, it must be
dismantled and cleaned.
Procedure
1. Close the manual valve on the purging line (see refrigeration/pneumatic circuit diagram)
2. Disconnect the solenoid valve power supply
3. Disconnect the solenoid valve from the pipework and clamp it in a vice
4. Unscrew the coil lock nut and take it off the plunger
5. Unscrew the plunger from the valve seat
6. Check the O ring and the other components. Clean carefully.
7. Re-assemble the valve by reversing operations 1 to 5;
Do not over tighten the coil lock nut as this could prevent the valve from closing.
8. Refit the solenoid valve to the pipework, respecting the direction of the air flow indicated by an arrow on the body.
9. Reconnect the power supply to the solenoid purge valve.
10. Open the manual valve on the purging line
*You must comply with the recommendations at the beginning of this chapter.
Cleaning the drain Y-strainer*
Solenoid valve maintenance *
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