Carrier HH12ZB280 Limit Switch THPU32HP7Y Natural gas requires a larger

Natural gas requires a larger orifice diameter to account for the difference in energy density and manifold pressure

How do I handle the capillary tube during installation

Industrial-Grade Materials: The nickel-chromium alloy construction resists corrosion and heat deformation for extended service life in 24/7 operations

you would typically look for the NC/S versions or a 4-wire variant

Key Benefits Direct OEM Replacement: Drop-in compatibility for the 326628-762 assembly

Carrier HH12ZB280 Limit Switch THPU32HP7Y Natural gas requires a largerThe Carrier HH12ZB280 Limit Switch is a critical safety component designed for high temperature monitoring in Carrier, Bryant, and Payne gas furnaces and residential heating systems. This genuine OEM HVAC replacement part is engineered to open the electrical circuit when internal plenum temperatures exceed the factory defined safety threshold of 280F. It features a 40F differential, ensuring the system remains deactivated until temperatures drop to a