White-Rodgers 1311-103 Zone Valve R-410A If your controls require DC

If your controls require DC power

This duct averaging temperature sensor is compatible with any system accepting a 10K-T3 thermistor curve

Can I use this switch in a universal HVAC application

Standard Lennox replacement fan blades generally include the necessary set screw for securing the hub to the 1/2 inch motor shaft

White-Rodgers 1311-103 Zone Valve R-410A If your controls require DCThe White Rodgers 1311 103 is a professional grade, 1" sweat zone valve engineered for precision flow control in hydronic heating systems. Designed for 24v 3 wire configurations, this normally closed valve features a high flow capacity (37 Cv), ensuring minimal resistance in 1 inch ID tubing applications. A critical feature for any veteran installer is the built in auxiliary switch (end switch), which simplifies wiring by providing direct signaling to