York S1-028-04807-700 Sheave Els PW 17895 replacing the old core with

replacing the old core with this 22312902 assembly restores factory-standard heat output and maintains the integrity of the PTAC defrost cycle

While modern coatings have improved

As a standard Parker valve replacement part

R404A / R507 / R502 Capacity: 7 Ton

This specific kit contains the regulator conversion components (spring and screw)

York S1-028-04807-700 Sheave Els PW 17895 replacing the old core withThe York S1 028 04807 700 is an industrial grade single groove variable pitch sheave designed for precise airflow and speed modulation in belt driven HVACR systems. Constructed from heavy duty cast iron, this 1VM50 sheave features a 4. 75" outside diameter and a 7 8" fixed bore, making it a direct OEM replacement for York and Johnson Controls air handlers and furnace applications. The adjustable pitch range of 3. 3" to 4. 8" allows contractors to fine