York S1-025-37481-000 Temp Control 30067439-890 though an upright position is

though an upright position is recommended when utilizing specific vent limiting devices for indoor installations

engineered for precise fluid control in closed-loop hydronic systems

Built with the industry-standard Erie PopTop design

Key Benefits for Contractors: Direct OEM Replacement: Engineering-matched performance for legacy HH12ZA230 models to reduce diagnostic time

This OEM-spec Johnson Controls A-4000-635 ensures that your HVAC pneumatic system remains compliant with nominal industry standards for clean

York S1-025-37481-000 Temp Control 30067439-890 though an upright position isThe York S1 025 37481 000 Temp Control is a critical safety component engineered for high limit temperature regulation in residential and commercial HVAC systems. This Single Pole Single Throw (SPST) snap action switch is designed to monitor and respond to thermal extremes, providing reliable limit control for York furnaces, air handlers, and cooling units. Featuring a fixed setpoint, this temperature control switch automatically opens the circuit