Resideo VR8304P4504 Valve 320788-702 this cross-referenced part is the

this cross-referenced part is the authorized factory replacement for both brands across various commercial boiler and water heater series

this limit switch is engineered to monitor outdoor ambient or coil temperatures

and Series 19 relay configurations

"Off" forces them open

Resideo VR8304P4504 Valve 320788-702 this cross-referenced part is theThe Resideo VR8304P4504 Dual Automatic Valve is a robust, single stage intermittent pilot gas valve designed for high capacity atmospheric boilers, commercial water heaters, and industrial furnaces. Engineered for natural gas applications, this 3 4 inch NPT gas valve features a step opening characteristic to facilitate a smooth, controlled light off, reducing mechanical stress on the heat exchanger. Operating on a standard 24VAC control circuit, it