Defrost Termination Temperature Sensor

Adjustable temperature termination controls allow for better tweaking of the system to prevent this condition.

Defrost termination temperature sensor.

Defrost controlled by rts al61 al61 al61 heaters failure improper current draw from heater turn on or off. The interior temperature may rise 10 20 f during the defrost. The refrigerator defrost sensor also known as the defrost bi metal termination thermostat trips when it detects that the temperature of the evaporator is getting hot enough that it might overheat. This is where defrost termination and fail safe comes in.

When it trips the defrost bi metal shuts off the defrost heater. After a run period of approximately 6 hours the evaporator coil will be frosted and require a defrost. Run with a return temp. If the temperature sensor or thermostat isn t working correctly it will still go back to refrigerating once the time is complete.

Of 7 c 45 f. When the defrost sensor trips it shut off power to the defrost heater. Expedited shipping availability may vary. Omnitemp 37t32 defrost termination switch.

Your still sensing temperature. 0 125 because this item is not stocked in our warehouse processing transit times and stock availability will vary. If you need your items by a certain date please contact us prior to placing your order. Al60 al60 al60 defrost termination sensor failure dts htt open or dts fails to open afer 2 hrs of defrost dts fails to close after 1 5 hrs of comp.

If the time is set way too long for defrost the temperature termination will stop the defrost and send it into refrigeration mode before the product gets too warm. It may be necessary to change the defrost cycle times to fit your work schedule. The idea behind defrost termination is to know the coil temperature. Instead lower the termination temperature or move the termination sensor on the coil.

And what you need to sense is coil temperature. The freezer defrost sensor also known as the defrost bi metal or defrost termination thermostat is next to the evaporator. The evaporator coil cannot go above 32ºf so long as there is still ice in that area so it stands to reason that if heaters are running on the coil and the coil is still at 32ºf or lower then there is still ice. Instead of the use of a klixon which is attached to the coil your using an anolog temperature sensor to a cpc input.

It trips when the evaporator temperature gets too high to protect the evaporator from overheating.