Reznor 122858 Limit Switch 321702-401 ceiling cassettes

ceiling cassettes

Technicians should inspect for heavy corrosion

designed to monitor inducer motor performance and confirm proper airflow before the ignition sequence initiates

This SPST (Single Pole Single Throw) pressure switch is factory-calibrated to a 6

the 62374-004 is the manufacturer-specified direct replacement

Reznor 122858 Limit Switch 321702-401 ceiling cassettesThe Reznor 122858 Limit Switch is a critical safety component designed for precise thermal regulation in Reznor unit heaters and makeup air systems. This 135F M R Limit Switch serves as a primary high limit safeguard, engineered to interrupt the electrical circuit if the burner inlet or discharge air temperature exceeds the fixed 135F threshold. As a manual reset limit switch, it requires a physical inspection and manual intervention by a qualified