The Reznor 10120 Blower Shaft is a precision-engineered 1-inch diameter replacement shaft measuring 39

meaning the internal orifice is slightly smaller than the pipe diameter

Integrated Ignition-Sensing: Combines the pilot burner and flame sensor to streamline the ignition sequence and improve response times

System Longevity: Prevents repeated overheating cycles that can lead to costly repairs of the blower motor or control board

using a higher limit can lead to a cracked heat exchanger or fire hazard

Nidec-US Motors LX7930 Motor R-407C The Reznor 10120 Blower ShaftThe Nidec US Motors LX7930 is a heavy duty direct drive blower motor engineered for commercial and industrial HVACR applications requiring a 460V single phase power supply. Rated at 3 4 HP with a synchronous speed of 1075 RPM, this 3 speed motor allows for precise airflow modulation to match system static pressure and load requirements. Built on a 48Y NEMA frame, it features an Open Air Over (OAO) enclosure designed for continuous duty in the blower's