Sterling 350-2100 CFM User Manual

350-2100 cfm Dryers 

Chapter 4: Control Panel 

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A pair of position switches confirm proper shifting of the valves.   

If full travel is not confirmed by the switches, the cycle will not begin on the new bed.  

 

 

This energizes or de-energizes the dryer's control power. 

Press this momentary contact switch to start the dryer.  Press this switch to shut down an 
operating dryer. The dryer shutdown sequence is: 

1.  Process heaters shut off immediately. 

2.  Process blower continues to run for 20 minutes to cool the process heater, then shuts 

off. 

3.  The regeneration cycle of the off-line bed will continue until finished, the 

regeneration heaters will shut off, followed by the regeneration blower. 

;  This meter indicates the current process air delivery moisture content. 

;  When the Push To Set button is pressed, the meter indicates the Dewpoint Shift 

point. See Section 5-10. 

This push-button is used when setting or confirming the Dewpoint Shift point. See Section 5-
6. 

This potentiometer [pot] is used when setting the Dewpoint Shift point. See Section 5-6. 

In the "ON" position, the drying temperature is raised or lowered to the ¼ DIN controller's 
alternate temperature - see Section 4-5.

  

This push-button resets the control system to allow restart of heaters and blowers after 
process air temperature has dropped below the high value programmed into the 1/8 DIN 
panel meter (4CNTL) 

This is on dryers equipped with the auxiliary hi-temperature safety option.  

;  The six current indicating meters monitor the current draw on each phase of the 

process and regeneration heaters. 

;  During normal operation, all three meters (phases) should read within one or two 

amps of each other.