Description
The Nordyne 1048460 Defrost Control Board is an electronic part that regulated the cycles in heat pump HVAC systems and is used to monitor temperature sensors and start defrosting when the presence of frost is detected on exterior coils. It takes the inputs of coil and ambient sensors, opens the reversing valve and auxiliary heat when necessary, and ends defrost conditions to ensure efficient work. Fitted in the control compartment of the outdoor unit, in heat pump systems.
