The Johnson Controls P74FA-1 is a professional-grade differential pressure control designed for precise monitoring of pressure variations between two sensing points

Built with a rugged aluminum casing and standard quad-blade quick-connect terminals

This is the burner tube assembly itself

but the locking mechanism and SPST action remain the same

Technical specifications include a standard 3

York S1-THEH21P5S Thermostat 323613-751 The Johnson Controls P74FA-1 isAs a technician, you know that keeping a heat pump system running efficiently requires a robust interface. The York S1 THEH21P5S Thermostat is a high performance 5 2 day programmable thermostat designed specifically for 2 stage heat 1 stage cool heat pump applications. This unit features a backlit digital display that provides clear visibility in dark mechanical rooms or hallways, allowing for easy monitoring of the auxiliary heat indicator and