This comprehensive kit provides the necessary components to restore the internal pressure differential

ensure the operating frequency and current stay consistently above the fixed 0

The switch operates on a precise cut-out/cut-in logic: it triggers a system shutdown if the discharge pressure exceeds 600 PSI and allows for a manual or automatic reset once the pressure successfully drops to 420 PSI

OEM Compatibility: Guaranteed fit for Trane VAL8750 systems

Key Benefits: Precision Fit: Designed specifically for Series 4270 pumps to ensure a zero-leak seal

Supco SLP0520 Pressure Switch R-410A This comprehensive kit provides theThe Supco SLP0520 Low Pressure Switch is a high precision, non adjustable SPST safety control engineered to protect compressors from damage due to loss of charge or freeze up conditions. Built for professional HVAC and refrigeration applications, this encapsulated pressure switch features a 5 PSI cut out and a 20 PSI cut in, providing a reliable automatic reset mechanism. It serves as the direct updated replacement for the legacy Supco 5731 series,