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The deep-seated threads and consistent hex sizing allow for proper torque application
Ease of Installation: Standard 2-wire 10k ohm design allows for rapid field replacement during routine maintenance or emergency HVAC repair
For technicians performing routine maintenance or a full steam trap repair
ideal for furnace heat exchanger and airflow sensing
Carrier HH18HA449 Rollout Switch The deep-seated threads and consistentThe Carrier HH18HA449 Rollout Switch is a critical safety component designed to detect and respond to flame rollout conditions in gas fired furnaces. This genuine OEM part serves as the advanced replacement for the obsolete HH18HA350, ensuring full compatibility with a wide range of Carrier, Bryant, and Payne heating systems. Engineered as a Single Pole, Single Throw (SPST) switch, it features a factory calibrated trip point of 350 degrees F. When the
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