Offers broad ICP compatibility across multiple brands including Heil

Engineered for a seamless fit on 2x2 inch pneumatic thermostats

Designed as an automatic reset limit switch

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you ensure the coffee urn sight gauge remains a reliable diagnostic tool for the end-user

Carrier HH12ZB240 Limit Switch Offers broad ICP compatibility acrossThe Carrier HH12ZB240 is a high limit OEM replacement part engineered for precise thermal regulation and safety in Carrier, Bryant, and Payne gas furnaces. As a normally closed (NC) switch, it is designed to protect the heat exchanger from damage caused by restricted airflow or blower failure. This auto limit switch functions on a specific thermal cycle, opening the circuit when internal temperatures reach 240F to interrupt the gas valve and closing