It utilizes precise timing circuits to allow for pressure stabilization during startup

this unit utilizes a 3-try ignition sequence with a 15-second inter-purge

Flexible Terminal Design: Equipped with large box lugs for high-gauge wire and dual quick connects for control circuit speed

often labeled as 396221/U

Resideo WT8840B1500 Gas Valve 321894-706 It utilizes precise timing circuitsThe Resideo WT8840B1500 Gas Valve is a professional grade standing pilot water heater control designed to replace legacy WV8840 series valves. Built for high performance Natural Gas applications, this control is a direct fit for AO Smith and Bradford White water heaters. It features a 1 2" NPT inlet and a 1 2" Inverted Flare outlet, and it is engineered for tanks with a 2" insulation cavity. The integrated NTC temperature sensor provides precise