Sterling 90-225 CFM User Manual

 

 

Cabinet Series Dehumidifying Dryer 

 

11 

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  Audible/visual critical alarm. 

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  Fusing for blowers and heaters. 

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  Dirty Filter indicator for each individual blower. 

Dehumidifying dryers force hot, dry air through the resin in the drying hopper where the air picks 
up moisture from the material and is drawn back to the dryer. 

In the dryer, a desiccant bed strips moisture from the air. The dryer then re-heats dried process 
air, and sends it back into the drying hopper to dry material again.  

This system is a closed loop, because ambient (outside) air is never introduced into the process 
air. See Figure 2.  Our dehumidifying dryers use the closed loop system, because the process air 
is typically much drier than ambient air, even after carrying moisture out of the plastic resin. 
Recycling process air maintains drying efficiency at a consistently high level.