York S1-R72DB0004 TXV Kit 318172-701 because the internal elastomer components

because the internal elastomer components and diaphragm structures are identical between AC and DC models of the same series

The unit features Rotolock fittings: the suction side is 2-1/4" and the discharge side is 1-3/4"

Designed to handle the rigorous duty cycles of outdoor HVAC environments

managing the timing of heating elements and blower motor activation to prevent high inrush current and circuit breaker trips

including the LH33WZ515 and LH33WZ521

York S1-R72DB0004 TXV Kit 318172-701 because the internal elastomer componentsThe York S1 R72DB0004 is a precision engineered thermal expansion valve designed specifically for integration with a Mortex evaporator coil. Serving as the direct replacement for the legacy R72DB0004, this TXV kit is essential for maintaining accurate refrigerant metering and evaporator superheat during high demand cooling cycles. For field technicians servicing York, Luxaire, or Coleman equipment, utilizing this OEM HVAC part ensures the system