York S1-R72DB0004 TXV Kit 322057-301 verifying the Nordyne 621912 motor

verifying the Nordyne 621912 motor specs against the existing motor’s frame size and shaft diameter (typically 1/2 inch) is critical for ensuring proper fan blade pitch alignment and airflow performance across the condenser coils

specifically for liquid line service

While this model features a standard 40 to 90°F range

removable deburring tool integrated into the chassis

While it supports LP applications

York S1-R72DB0004 TXV Kit 322057-301 verifying the Nordyne 621912 motorThe 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