For field service professionals

ensuring the intermittent pilot or direct spark ignition sequence remains stable under high-demand cycles

Precise Union Fitting: Specifically designed for 1-1/4 inch 3001 series dielectric unions to ensure zero-leak performance

NEMA 4 Enclosure: Provides a moisture-tight seal for installations in mechanical rooms or outdoor locations

which is required for proper lubrication when using R134A refrigerant

York S1-9951-1771 Orifice Freon For field service professionalsEnsure precise combustion performance with the York S1 9951 1771 Natural Gas Burner Orifice, a critical component for maintaining the correct manifold pressure and thermal output in compatible York HVAC systems. This #16 drill size orifice is engineered for a 0. 177 inch inside diameter, specifically calibrated for natural gas burner applications. Designed to handle throughput for systems typically ranging between 30,000 and 60,000 BTU h, this OEM