Wizard WEC / WDC Electric Defrost Step Chart

Electric Defrost
Defrost Step Step Name Range Relay / Valve / Circuit
Liquid Line Solenoid Evaporator Fan Suction Stop Pre-Heat Stage Electric Defrost Equalizer Valve
1 Normal   Cycling On Open Closed Closed Closed
2 Pump Down 0-250 min Closed On Open Closed Closed Closed
3 Pre-Heat Cycle 0-250 min Closed Off Closed Open Closed Closed
4 Defrost Cycle 0-250 min Closed Off Closed Closed Open Closed
5 Drip Cycle 0-250 min Closed Off Closed Closed Closed Closed
6 Equalizing Cycle 0-250 min Closed Off Closed Closed Closed Open
7 Fan Start Delay 0-250 min Open / Cycling Off Open Closed Closed Closed
8 Normal   Cycling On Open Closed Closed Closed