Carrier HH18HA119 Limit Switch 318518-761 and Intertherm E2 and E3

and Intertherm E2 and E3 series electric furnaces

Universal Compatibility: Engineered specifically for Raypak atmospheric pool heaters and many B6000/B2000 series commercial boilers

Steam Rated Durability: Specifically built for low pressure steam up to 15 psig

For technicians managing pneumatic valve actuators

which is ideal for quick field replacements where brazing may be restricted or inconvenient

Carrier HH18HA119 Limit Switch 318518-761 and Intertherm E2 and E3The Carrier HH18HA119 is a critical safety component designed for precise thermal monitoring in high efficiency furnaces and air handlers. Engineered as a 125 35F limit switch, this bi metal snap disc functions as a formal high limit control to prevent heat exchanger damage or hazardous operating conditions. With an opening set point of 125F and a 35F differential for reset, the HH18HA119 ensures the blower assembly and burner sequence maintain safe