SPX Flow Refrigerated Type Compressed Air Dryer HPRN500

NOTE: Before corrective maintenance is done during the warranty period, call your local distributor and proceed according to instructions. Refer to the warranty for limits of your coverage.

Check the operation of the automatic drain valve

See the Field Service Guide for remedies to drain valve malfunctions.

See the AUTOMATIC DRAIN VALVE section for drain valve adjustment.

Sign off on the daily air dryer maintenance

NOTE: Before corrective maintenance is done during the warranty period, call your local distributor and proceed according to instructions. Refer to the warranty for limits of your coverage.

It is recommended to inspect the condenser coils monthly.

Inspect the condenser coils for any dirt or particles.

If necessary, remove dirt or other particles with compressed air from an OSHA-approved air nozzle that limits its discharge pressure to 30 psig (2.1 kgf/cm2).

Check if the dirt or particles have been removed.

Sign off on the weekly air dryer maintenance

CAUTION! Do not disassemble drain valve timer or attempt to repair electrical parts. Replace timer if defective.

WARNING! If power supply is not connected and unit is not depressurized before disassembly, serious personal injury and valve damage may result.

Disconnect main power supply to dryer.

Lock out and tag power supply in accordance with OSHA requirements.

Removes hoses that connect the drain valve to the drain discharge fitting and remove the valve from the drain valve strainer.

Remove screw and washer from front of the drain valve.

Remove the power supply connector and gasket (with the timer assembly if attached) from the solenoid coil housing. Do not damage or lose the gasket.