Lennox 43G44 Defrost PSI Switch

The Lennox 43G44 Defrost PSI Switch is an essential part made for defrost functions in Lennox refrigerators and freezers only. This small device works as a watchman; it measures pressure in the refrigerant line to trigger defrosting at the most appropriate time. The switch controls defrost cycles based on refrigerant pressure and starts the process immediately when frost accumulates to a certain point. The switch assists your refrigerator or freezer to work effectively, possibly saving on energy costs for a frequency of defrost cycles a specific frequency 50Hz defrost PSI switch is made to be durable in the cold environment of your freezer.