selecting the correct Sensus 243-12-2 or 243-8-2 orifice size is essential to prevent hunting and ensure stable downstream pressure

this is the "less flange" model (VLF)

this SPST switching relay ensures high-reliability interfacing between low-voltage thermostats and line-voltage components like circulator pumps or inducer motors

this specific part is manufactured with a 5/8-inch bore

Resideo VR8205Q2555 Valve 323269-701 selecting the correct Sensus 243-12-2The Resideo VR8205Q2555 is a high performance 1 2" dual automatic combination gas valve engineered specifically for two stage gas furnaces utilizing direct spark ignition (DSI) or hot surface ignition (HSI) systems. This 24VAC gas valve features a standard opening profile with a dual stage regulator factory set at 1. 7" W. C. for low fire and 3. 5" W. C. for high fire. With a flow capacity ranging from 20 to 200 CFH and a 0. 5 PSI pressure rating, it