Ingersoll Rand Desiccant Dryer EH21004H000L

Depressurize dryer before performing any service.

Wear respiratory protection during the draining and filling process.

Refer to Section 10.7 for the proper way to shut down the Heat Reactivated Dryer.

Remove the caps on both fill and drain ports on each desiccant tower.

Insert a small rod into the drain port to assist desiccant flow if necessary.

Remove and clean retainer screens at the inlet and outlet piping connections.

Enter the pre-filter differential pressure

Enter the post-filter differential pressure

Are the filter cartridges in need of replacement based on differential pressure indicator?

Desiccant Inspection and Replacement

Is desiccant replacement necessary?

Clean no-loss drain valves and check valves

List any worn or damaged seats and parts replaced

Cleaning the No-Loss Drain Valves

Remove the valve bodies from the manifold

Check and replace o-rings as necessary

Troubleshooting No-Loss Drain Valves

Verify that the no-loss drain is receiving electric current

Check for burned out no-loss drain coil

Measure voltage to ensure it is within +/- 10% of nameplate readings

Depressurize the system before disassembling filters

Filter Element Change Procedure

Rotate filter bowl counter-clockwise to loosen bowl from filter head

Remove elements by grasping element and pulling downward

Tighten filter bowl such that the flat of the filter bowl is in contact with the filter head

Slowly pressurize filter, avoiding rapid introduction of compressed air

Inspect element prior to installation