The Carrier HH18HA211 Rollout Switch is a critical safety component designed for Carrier

For most compatible M&M series

this L175-40F manual reset control is engineered to interrupt the burner circuit if heat exchanger temperatures exceed the 175°F safety threshold

Constructed for compatibility with a wide range of Amana

For systems requiring a higher amperage draw

York S1-025-27792-708 Limit Switch The Carrier HH18HA211 Rollout SwitchThe York S1 025 27792 708 is a high precision 170F M R Limit Switch engineered for critical high limit protection in residential and light commercial HVAC furnaces. As a safety critical auxiliary limit switch, this manual reset component monitors internal heat exchanger temperatures, providing a fail safe cutoff to prevent dangerous overheating if airflow is restricted or the primary limit fails to trip. Designed to fit York P2DPD12N06401A models and