Manual Reset Functionality: Requires a manual intervention after a trip

As an OEM replacement part from Johnson Controls

Versatile Application: Primarily used as an upper limit switch in gas furnaces

For service technicians maintaining Reznor unit heaters

Depending on your compressor terminal configuration

Carrier HH12ZB260 Limit Switch Manual Reset Functionality: Requires aThe Carrier HH12ZB260 Limit Switch is a critical safety component engineered for precise thermal regulation in Carrier, Bryant, and Payne furnaces. This auto reset limit switch features a Normally Closed (NC) configuration, designed to break the electrical circuit when the plenum temperature reaches its 260F opening setpoint. Once the heat exchanger cools to the 220F closing temperature, the SPST (Single Pole Single Throw) switch automatically resets,