Reznor 100799 Limit Control which typically points to a

which typically points to a restricted or fouled distributor orifice

Built for the rigors of HVAC induction monitoring

the Maxitrol 12A34 vent limiter provides a reliable fail-safe for industrial gas regulators installed in critical indoor spaces

check for continuity across the terminals while the switch is below 140°F

or a failing transformer

Reznor 100799 Limit Control which typically points to aThe Reznor 100799 Limit Control is a critical safety component designed for precise thermal regulation within Reznor unit heaters. This L150 25F high limit switch operates with a fixed temperature setpoint, featuring an open on rise configuration at 150F and a 25F differential for reset. Engineered for rapid response to heat exchanger over temperature conditions, this SPST limit switch ensures the burner circuit is interrupted if airflow is restricted