Reliable Thermal Protection: Provides a mechanical high-limit safety break that operates independently of the primary thermostat logic

Standard PSC motors like this typically require a specific MFD-rated capacitor

the dual-primary voltage capability and 150VA power rating provide the necessary overhead for complex control logic and high-draw contactor coils without voltage drop

It serves as the direct R20E83 replacement valve

York S1-024-27688-001 Switch 318518-761 Reliable Thermal Protection: Provides aThe York S1 024 27688 001 Switch is a high performance OEM replacement low pressure switch engineered for precision sensing in residential and commercial HVAC systems. This single pole, normally open (SPNO) safety control is calibrated at a 0. 6 in. W. C. setpoint, providing critical protection for the compressor and blower assembly. Designed to meet strict York HVAC specifications, this pressure control monitors airflow and refrigerant levels to