Reznor 150771 Vent Motor Freon The silver cadmium oxide contacts The silver cadmium oxide contacts are specifically built to minimize arcing and resist welding under high inrush loads common in compressor contactor and motor starter applications Fail Safe Operation: Mechanical spring return design ensures the valve stem raises to the safe position during total air loss The factory measured torque and draft inducer performance ensure that pressure switches close consistently Key Benefits for Technicians: Precise OEM Specifications: Matches the factory 3200 RPM and 115V requirements to ensure correct air fuel mixture and venting