Type KH Split Phase, Type KC Capacitor Start - Capacitor Run, Babbit Sleeve Bearings for Long Life and Smooth Operation, Precision Windings for Low Noise, Resilient Base Applications: For Driving Conventional Types of Belted Fans and Blowers - Recommended for Furnace Fan and Central Air Conditioning Applications. * Two Speed Motors are Series Connected and will run on Low Speed Continuously and Switch to High Speed with Furnace Plenum Control Switch.