While designed specifically for McDonnell & Miller RS sensors

preventing temperature tampering that often leads to excessive energy consumption or equipment strain

This part is designed for Nor East Controls globe valves and is frequently used in systems originally featuring Honeywell or DeZURIK hardware specifically requiring an industrial stem wiper

High-grade aluminum construction provides the necessary rigidity and corrosion resistance required for outdoor exposure

Common Questions What causes a transformer like the 621807R to fail

Rheem-Ruud 47-20045-02 Limit Switch While designed specifically for McDonnellThe Rheem Ruud 47 20045 02 Limit Switch is a critical safety component designed for high voltage HVAC systems. As a furnace high limit switch, this DPST normally closed switch is engineered to break the electrical circuit if internal plenum temperatures exceed safe operating parameters. This specific model features a 150F fixed open temperature and a 110F fixed close temperature, facilitating an auto reset function once the system cools to a safe