The National Comfort Products 14262097 Blower Heat Relay is an electrical switching component designed to control blower operation in compatible HVAC equipment. It works by responding to the heating control signal and switching power to the blower motor, helping ensure proper airflow during the heating cycle. This relay is used in compatible National Comfort Products packaged terminal... https://www.partshnc.com/14262097-national-comfort-products-blower-heat-relay