Description
This Lennox 63K46 Defrost Stat L70-28°F is a necessary part of your Lennox heating and cooling system. It serves as a defrost thermostat that controls the defrost process in your unit without having to be programmed. The evaporator coil can freeze during operation and therefore its efficiency will be affected. This defrost thermostat is designed to feel when frost has accumulated to a certain point around 28°F and start the defrost cycle. A defrost cycle adjusts the circulation of the refrigerant in order to warm the inner parts to dissolve the frosted layers and achieve proper air circulation.
