though valve cores if present may limit working pressure

this replacement regulator spring offers a reliable solution for recalibrating Model 143-80 units to meet specific jurisdictional utility standards or equipment manifold requirements

which is incompatible with R-22 mineral oil environments

making it suitable for standard North American grids and international applications requiring a 24V HVAC control relay

SPDT Switch Logic: Provides versatile wiring options for complex control circuits requiring both normally open and normally closed contacts

York S1-025-31830-000 Limit Switch though valve cores if presentThe York S1 025 31830 000 Limit Switch is a critical safety component designed for precise thermal regulation in commercial and residential HVAC systems. This SPDT (Single Pole Double Throw) control features a fixed setpoint calibrated to open the circuit at 105F and close at 165F. As a genuine York OEM replacement part, it ensures seamless integration with specific D1CG, D2CG, and D7CG rooftop units and furnace assemblies. This high temperature limit