Ranco defrost timer are used in domestic and commercial application
Defrost timer is a single cam control which activates a SPDTswitch
Its cycle consists of transferring the switch of a preset duration once every 4, 5, 6, 8, 10, 12, 16 or 24 hours
Both the operating cycle and switch transfer duration are pre-set at the factory and are not adjustable
The cycle will repeat as long as the motor is energized
An internal clutch mechanism permits initial adjustment of the cycle starting time