York Parts S1-02439479000 Pressure SwitchYork pressure switch S1 02439479000 offers reliable pressure control for HVAC systems, delivering precise operation and long lasting performance. This pressure switch serves as a direct replacement designed to work with York units using 0. 33 IWC and replaces S1 02425975000, ensuring a seamless retrofit and minimal downtime. Engineered for enduring performance, this York parts component maintains accurate pressure sensing, protecting compressors and

and a pressure rating of 255 PSI at 300°F

MROSCS leaf class name valve screen for compatibility with Maxitrol systems

Modular design with adjustable shelving options

heat-resistant materials for long-lasting replacement parts

this hot surface igniter delivers quick starts

Compatible with various Bell & Gossett configurations

The Conbraco 1030310 Safety Relief Valve provides dependable overpressure protection for heating boilers and hydraulic heating systems

this board delivers steady performance you can trust year after year

Key fit: Precision geometry and the 01-15 reverse configuration ensure a snug

2‑way normally closed zone valve for efficient zoning

ease diagnostics

PDP350 and BDP250 models