Carrier HH18HA138 Limit Switch 011" orifice size

011" orifice size

or dry fire—has been addressed

As a specialized bimetal flame rollout limit switch

This thermal cut-off switch is commonly used in Bard wall-mount units and other packaged systems

this auto-reset limit switch features a critical temperature profile with a 130°F opening setpoint and a 100°F closing setpoint

Carrier HH18HA138 Limit Switch 011" orifice sizeThe Carrier HH18HA138 is a professional grade HVAC high limit switch engineered for precision thermal protection in Carrier, Bryant, and Payne gas furnaces and packaged units. As a normally closed (NC) disc style limit switch, it serves as a critical safety component by monitoring internal heat levels and interrupting the burner circuit if temperatures exceed safe operational parameters. This specific factory authorized part features an open