offering the exact footprint required for rapid field installation during emergency repairs

Technicians should consult the specific furnace rating plate and altitude adjustment tables to confirm the exact drill size required for the local BTU content of the gas

and Day & Night condensing units and refrigeration systems

leak-proof engagement even in high-vibration environments

Carrier HH18HA461 Rollout Switch offering the exact footprint requiredThe Carrier HH18HA461 Rollout Switch is a critical safety component designed for furnace combustion chambers, specifically engineered to detect flame rollout conditions. This fixed temperature limit switch is calibrated to trip at 160 degrees F, providing a reliable thermal cutoff to prevent heat exchanger damage or fire hazards. Featuring a Single Pole Single Throw (SPST) configuration, this device breaks the electrical circuit to the gas valve when