and flame sense (S1/FC) align with your actual equipment layout

Simplified Professional Installation: Equipped with a factory-correct

This specific pressure regulator spring is engineered to deliver a precise outlet tension range of 10" to 22" Water Column (WC)

This HVAC dual run capacitor ensures that both the compressor and the fan motor receive the required phase shift allowed by its +/- 6% tolerance

5 gallon dispensers

System Sensor 2151 Smoke Detector Els PW 17895 and flame sense (S1/FC) alignThe System Sensor 2151 is a professional grade, low profile photoelectric smoke detector designed for precise performance in commercial HVAC and fire alarm systems. This 100 Series plug in head utilizes a state of the art optical sensing chamber and is engineered to provide stable detection in diverse environments. Technicians should note that this unit is the direct replacement for 2151+ and the 70 540000 001 models, ensuring seamless integration