Simplified Installation: Standard 1/2 inch bore with intake-side hub alignment facilitates a quick swap-out during emergency service calls

Built on a 48Y Nema frame (5

or visible soot around the pilot door

This genuine OEM component maintains a stable electrical phase shift

5V secondary output from a 480V primary source to prevent relay chatter

York S1-363-93521-703 Heat Exchanger THPU32HP7Y Simplified Installation: Standard 1/2 inchThe York S1 363 93521 703 Heat Exchanger is a critical 3 tube OEM replacement component engineered for high efficiency thermal transfer in residential and light commercial York furnace units. Designed to withstand the rigorous thermal cycling demands of heating operations, this multi tube assembly facilitates the safe separation of combustion gases from the indoor airflow, ensuring system safety and optimal BTU output. Built from heavy duty aluminized