Rated as Class F for high-temperature resilience

the BUB models are typically required

because it utilizes an SPDT switch

This 1 1/8" sweat connection valve utilizes a pilot-operated diaphragm to ensure high flow rates and reliable opening even under low pressure differentials

This valve is rated for a maximum operating pressure differential (MOPD) of 15 PSI for fuel gas applications

York S1-MTR-136PK Blower Motor 322055-301 Rated as Class F forThe York S1 MTR 136PK Blower Motor is a high performance OEM replacement part engineered specifically for York power venter assemblies. As a dedicated left hand (LH) rotation motor, this component is critical for maintaining the negative pressure required to safely exhaust combustion gases from high efficiency furnaces and drafting systems. This model is technically identical to the MTR 136PK, ensuring a drop in fit for technicians performing field