Does this valve support both Natural Gas and Propane systems

meaning they can be used interchangeably in the field

What material are the 390427E bushings made of

Why did my original limit switch trip

Specifications:

York S1-024-35267-000 Pressure Switch Els PW 17895 Does this valve support bothThe York S1 024 35267 000 Pressure Switch is a critical combustion safety component designed for precise monitoring of furnace inducer blower performance. This SPNO pressure switch (Single Pole Normally Open) is engineered to close on a fall in pressure, ensuring the combustion air sequence is fully established before the ignition cycle begins. Rated with a trip point range of 0. 6 1. 05 WC, this genuine Johnson Controls HVAC part provides the exact