For installations above this range

This Permanent Split Capacitor (PSC) motor is built for the rigorous duty cycles of Modine unit heaters

ensuring reliable fail-safe positioning during power loss

By mitigating these electrical "noise" spikes

York S1-028-12012-700 Sheave 328140-751 For installations above this rangeThe York S1 028 12012 700 Sheave is a precision engineered OEM replacement pulley designed for high demand HVACR mechanical drive systems. Featuring a specific 1. 1875" bore (1 3 16 inch), this fixed pitch sheave is critical for maintaining the correct blower RPM and ensuring optimal static pressure within your air handler or rooftop unit. This single groove sheave (BK110 series) typically accommodates 4L, A, 5L, or B section V belts, providing the