Sullair Heatless Desiccant Compressed Air Dryer DHL-4000

• Replace the adsorption material. The estimated average life of the adsorption material is 3-5 years, with 10-minute cycle times and 3000 hours/year in any case it depends on the quality and temperature of the inlet air and on the correct programmed maintenance.;

• Check if the inlet filter condensate drain works regularly.

• Check the clogging state of the filters by reading the differential pressure gauge installed.

• Check that the tower switching operation takes place correctly and in the set cycle times.

• Check that the differential pressure gauge, of the regenerating tower, indicates 0 bar.

• Replace the inlet and outlet filter cartridge.

• Clean the silencers or if necessary replace them.

• Check if the regeneration drain solenoid valves (PVA e PVB) work regularly.

• Check if all screws of the electrical wiring are correctly tightened.

• After the checking operating, control the working of the dryer.

In addition to the programmed maintenance, every year:

• Replace the membrane of the regeneration drain solenoid valves (PVA and PVB).

• Replace the techno-polymer of the shuttle spool valves.

• After the control operation, control the working of the dryer.;