This Resideo Universal Defrost Control Board is a single-stage heat pump (HP) component designed to manage the defrost cycle in heating, ventilation, and air conditioning (HVAC) systems. It is equipped with an adjustable defrost time period ranging from 30 to 90 minutes and a selectable defrost interval of 30, 60, or 90 minutes. The board also features an integrated short-cycle protection delay and a high-temperature limit to prevent overheating. It operates at a voltage range of 18 to 30 VAC and can withstand temperatures from -40┬░F to 175┬░F (-40┬░C to 79┬░C). The product dimensions are approximately 6 inches by 4 inches by 1.5 inches.
