Sterling 350-2100 CFM User Manual

350-2100 cfm Dryers 

Chapter 6: Maintenance 

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Dryer models 350 through 2100 Dryers have four or eight three-phase regeneration heaters wired in the 
wye formation mounted in the insulated box directly above the lower valve. 

 

1.  Access the regeneration heaters from the rear of the dryer. Remove the cover plate secured by 

two bolts. 

3.  Sketch the heater wiring configuration so the heaters may be re-assembled properly. Also, note 

that the loops of the heaters are vertical to prevent drooping when hot. 

4.  Remove the jumper wires for the heater(s) being removed and/or replaced. 

5.  Remove the four bolts securing each heater's 3 1/2" mounting plate. Slide out the heater, taking 

care to not damage the gasketing. 

6.  Re-install the new heaters in reverse order. Be sure their loops are vertical, like the original 

heaters were. Securely tighten all fasteners. 

7.  Re-install the jumper wires according to the sketch made earlier. 

8.  Re-secure the regeneration heater access cover.