Carrier HH18HA138 Limit Switch Key Benefits: Multi-Series Compatibility: Engineered

Key Benefits: Multi-Series Compatibility: Engineered for seamless fitment in Series 221

System Compatibility: Ideal for use as a pneumatic restrictor tee in Johnson Controls and other manufacturers' air-operated systems

we recommend verifying your specific model’s parts manual to ensure this kit meets the required depth and clearance for your application

Versatile Joining: Designed for compatibility with various soldering and brazing alloys for secure

it guarantees exact form-fit-functionality for contractors performing high-stakes repairs on residential and commercial furnaces

Carrier HH18HA138 Limit Switch Key Benefits: Multi-Series Compatibility: EngineeredThe 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