Carrier HH18HA282 Defrost Thermostat/Sensor

The Carrier HH18HA282 is a defrost thermostat sensor a crucial component found in Carrier heat pump systems. It as a double-edged sword in protecting the system during defrosting period it works as a temperature sensor by the coil. The sensor is in a position to identify this change as frost builds up on the outdoor coil during cold weather operation. Second it works as a thermostat to help begin the defrost mode when the temperature goes down to a certain level. This leads to the turn of the refrigerant flow and hours of frost and Iced Subcooler is thawed and cleared.