What terminates the defrost cycle?
One typical temperature cut-in used on many systems is 60°F. The defrost cycle can also be terminated by a pressure switch, where a pressure control is used as the defrost termination switch. When it senses a pressure that will ensure all the ice is removed from the evaporator, it will close and terminate defrost.Click to…
One typical temperature cut-in used on many systems is 60°F. The defrost cycle can also be terminated by a pressure switch, where a pressure control is used as the defrost termination switch. When it senses a pressure that will ensure all the ice is removed from the evaporator, it will close and terminate defrost.Click to see full answer. Consequently, what is off cycle defrost?It is a defrost cycle that occurs when the compressor is off. When the compressor is off, the evaporator fans will continue to run and the air in the cooler will defrost the ice from the evaporator coil.Likewise, how does a defrost termination thermostat work? The function of this temperature-activated switch is to “terminate” defrost when the evaporator coil has been defrosted, and also to “delay” the evaporator fans from coming on immediately after defrost. Time clocks can be programmed for certain defrost duration periods. Secondly, what happens to the evaporator fan motor when the defrost cycle is terminated? A defrost termination control may be used to end the defrost period based on temperature. Otherwise, the defrost period will end when the defrost timer runs out. After the evaporator is defrosted, the evaporator fans may need to remain off until any residual defrost condensate on the coil surface refreezes.How long does a defrost cycle last?This meant that say every 6 hours, the refrigerator would go into defrost whether it needed it or not. The duration of time it would remain in the defrost cycle was fixed and could be anywhere from 18 to 30 minutes depending on the timer design but it would always be the same length of time.
