With 1/4-inch quick connect terminals and a 26VAC maximum rating

Enhanced Reliability: The thermal-magnetic trip unit provides precise protection against overloads and short-circuit events

High-Efficiency ECM Technology: Significantly lowers amperage draw under partial load

making it a reliable standard for veteran contractors handling liquid level verification

With a 5 Cv flow factor and a required operating pressure differential of 5-125 PSI

York S1-9951-1801 Orifice 320788-704 With 1/4-inch quick connect terminalsThe 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