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15, 30, & 60 cfm Compact Dryers 34
Replacing the Process/Regeneration Heater
The dehumidifying dryers utilize a single-phase Calrod-type heater element. This heater
element is mounted in the center compartment in the desiccant beds. Although the
replacement procedure is the same for each heater, the wattage varies by model, voltage,
temperature range, etc.
WARNING! Hazardous electrical current present.
Disconnect and lock out power before you replace heater elements!
Figure 12: Process/Regeneration Heater Location and Disassembly
Procedures
1. Disconnect electrical power to the dryer.
2. Using a 1/8” Allen wrench, remove the 10-24 button head screws holding the top,
back and side panels to the dryer frame.
3. Disconnect the plug for the valve motor, valve switch, and blower (15 only).
4. Remove the four (4) nuts at each corner of the top casting.
Valve & Air
Manifold Casting
Desiccant
Assembly Rod
Regeneration
Heater
Wire Conduit
Assembly
Lower Air Manifold Casting
Gasket
Hollow
Desiccant
Tank