This proving switch is designed to detect positive

stainless steel snap-action sensor to ensure long-term set point stability even in high-vibration environments

allowing for seamless integration into existing control architectures while maintaining UL listing and CE compliance for global project standards

this York OEM replacement part ensures precise timing and reliable operation under demanding thermal conditions

The components are manufactured to resist chemical degradation from common HVAC condensate additives

Johnson Controls P32AC-8 Pressure Control Els PW 17895 This proving switch is designedThe Johnson Controls P32AC 8 is a high precision differential pressure control designed for sensing air flow and pressure differentials in commercial HVACR systems. Built with a Buna N diaphragm and a NEMA Type 1 enclosure, this SPDT pressure switch is engineered for critical applications like air flow proving with electric duct heaters, clogged filter detection, and de icing cycles. This specific model features an adjustable set point range of 0. 5"