Gardner Denver Air Dryer RCD400W4

Warning: Disconnect and lock out power supply before disassembly to avoid personal injury and valve damage.

Main power supply to dryer disconnected

Power supply locked out and tagged in accordance with OSHA requirements

Screw and washer removed from front of valve

Power supply connector and gasket removed from the solenoid coil housing

13mm nut and spring washer removed from top of solenoid coil housing

Solenoid coil housing lifted off solenoid core in valve body

Solenoid core unscrewed from valve body

Inspect the condenser coils for air-cooled condensers.

Remove dust, dirt or other particles with a soft brush or with compressed air from an OSHA-approved air nozzle that limits its discharge pressure to 30 psig.

If the coils are coated with oil, grease or other substances that reduce the cooling efficiency, clean the coils with a solvent.

Follow the solvent manufacturer’s directions for proper use and disposal, including the use of proper protective equipment.

Sign off on the monthly air dryer maintenance

1. Check the operation of the automatic drain valve at least once during each 8-hour shift. Inspect and clean (if necessary) the drain valve strainer.

2. Dryers with the Energy Management Controller

Check the following front panel lights:

- If either alarm light is lit, shut down the dryer and refer to the Controller section to determine the cause. An accurate record of system operating parameters can aid in troubleshooting, and can indicate gradual reductions in system efficiency. Using the DISPLAY SELECT button on the control panel, check the system temperatures, and record in the Operator’s Log provided in the back of this manual.;