Legacy Refrigerant Compatibility: Dedicated scales for R-12

or restricted venting—before the heating cycle can resume

the 013G-8039 is specifically designed for RA-FN series (standard flow) bodies

and Pennco

York S1-025-22740-000 Pressure Control Legacy Refrigerant Compatibility: Dedicated scalesThe York S1 025 22740 000 Pressure Control is a critical high limit safety component designed for precise refrigerant management in commercial and residential HVAC systems. Engineered as a Single Pole Single Throw (SPST) switch, this OEM part is calibrated to open the electrical circuit at 325 PSI and automatically close at 225 PSI. This pressure regulation ensures that your compressor and high side components remain within safe operating parameters,