the HH12680001 offers a reliable activation point essential for passing fire safety inspections and protecting the equipment from catastrophic overheating

The fail-safe direction (clockwise or counter-clockwise) is easily determined by the orientation of the actuator on the shaft during installation

it ensures the venting system is clear and the heat exchanger has proper airflow before allowing ignition

ensuring smooth ignition transitions and stable combustion across Burnham residential hydronic systems

this universal furnace board minimizes truck stock while ensuring high-performance compatibility across diverse hot surface ignition systems

Lochinvar & A.O. Smith 100208570 Limit 322057-301 the HH12680001 offers a reliableAs a veteran tech, you know that a nuisance trip is one thing, but a failed high limit is a direct threat to the heat exchanger. The Lochinvar & A. O. Smith 100208570 Limit is a critical safety component calibrated for a 175F high limit set point. This genuine OEM part, which is identical to TST2052, provides the precision needed to prevent runaway temperatures in residential pool heaters and water heaters. Designed with a 1 4 NPT connection, this 175