Watts F256661 Valve 320720-756 continuous duty operation with a

continuous duty operation with a focus on quiet performance and longevity

reducing the likelihood of board-side damage caused by generic or modified wiring configurations

effectively cutting the burner circuit if the heat exchanger exceeds safe operating temperatures

making it a versatile addition to a service van’s stock for ClimateMaster heat pump repair

Watts F256661 Valve 320720-756 continuous duty operation with aThe Watts F256661 140S 3 150 210 FS is a freeze stat temperature limit control used in HVAC systems to protect coils, heat exchangers, and air handling equipment from low temperature damage. It functions by monitoring temperature and initiating a control response when conditions approach unsafe levels, helping prevent coil freeze up and system failure. In the field, this type of control is commonly used in air handlers, hydronic coil assemblies, and