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A fouled or failing HVAC flame rod is a leading cause of intermittent short-cycling and safety lockouts in Reznor unit heaters
including the SC Series and common commercial unit heaters
this Definite Purpose (DP) contactor is built to handle the high Locked Rotor Amperage (LRA) typical of starting cycles in Rheem and Ruud cooling equipment
typically 10" W
Reznor 203933 Pressure Switch Els PW 17895 A fouled or failing HVACThe Reznor 203933 Pressure Switch is a critical safety component designed for precise airflow monitoring in commercial and industrial heating and ventilation systems. This genuine OEM part features a 0. 75" WC setpoint, ensuring the inducer motor or venter assembly is moving sufficient combustion air before allow the gas valve to energize. Built with a SPDT (Single Pole Double Throw) switch configuration, the 203933 provides versatile electrical
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