The gas valve output is rated for a maximum of 2

ensuring compatibility with virtually any controller

as well as various semi-hermetic configurations

Durable Construction: Built to endure the thermal stress of continuous operation in commercial and industrial settings

Carrier HH18HA279 Defrost Sensor 321142-301 The gas valve output isWhen you're out on a service call for a heat pump that is "iced up" or failing to initiate a defrost cycle, the Carrier HH18HA279 Defrost Sensor is often your primary point of failure. This OEM temperature activation switch is specifically calibrated to a 65 33 degree range, naturally closing at approximately 32F to signal the Carrier defrost control board and opening at 65F to terminate the cycle. Engineered for heavy duty heat pump maintenance, it