Rheem-Ruud 47-102684-204 Defrost Control Board Kit

The Rheem-Ruud 47-102684-204 Defrost Control Board Kit is one of the components that are utilized in controlling the defrosting process of HVAC systems with special focus on heat pumps. It works at 24V, and controls the defrost cycle to avoid ice build up on the evaporator coil. It is applied in heat pump systems to control the defrosting process, It has temperature sensors that assist it in checking for ice formation and it defrosts when it is required to do so. This involves turning on the defrost heaters as well as turning off the compressor for a while in order to melt ice that has formed and this enhances heat transfer and efficiency of the system.