York S1-9951-1801 Orifice 321894-709 It features a 60-inch capillary

It features a 60-inch capillary tube length and is optimized for systems utilizing R-22

ensuring the inducer motor maintains proper static pressure for safe combustion

250°F Fixed Setpoint: Provides accurate thermal protection against flame rollout to prevent manifold and wiring damage

ensuring the internal sensor stays calibrated to the room's actual temperature

Key Benefits for Technicians Direct OEM Interchange: Exact replacement for the 3900-2011-000

York S1-9951-1801 Orifice 321894-709 It features a 60-inch capillaryThe York S1 9951 1801 Orifice is a precision engineered fixed bore metering device designed for specific residential and light commercial HVAC applications. Featuring a . 180" orifice size (Sz15), this component is critical for maintaining accurate refrigerant flow control within the evaporator coil. As a genuine OEM replacement part, it ensures proper pressure drops across the liquid line, optimizing heat exchange efficiency in York, Coleman, and