For safety and appliance certification

As a veteran-grade HVAC limit control

maintaining a consistent propane burner nozzle discharge coefficient

it includes a universal mounting bracket and multi-point terminal options

Precision Alignment: Ensures the solenoid remains in the required vertical and upright orientation for optimal pilot-operated performance

Rheem-Ruud 47-21663-09 Limit Switch For safety and appliance certificationThe Rheem Ruud 47 21663 09 Limit Switch is a critical safety component designed for precise thermal regulation within HVAC equipment. This SPST normally closed switch features a fixed open temperature of 150F and a fixed close temperature of 120F, ensuring reliable high limit protection for the heat exchanger. As a green color coded general purpose control, it operates with an automatic reset function, eliminating the need for manual intervention