this Type 122 component features 40-amp contacts and a 208/240V AC coil

thermocouple or flame sensor

Standardized Integration: 1/2" NPT threading allows for seamless installation in existing piping schedules

you must select the stainless steel trim equivalent (VG1245 series)

System Compatibility: Serves as a direct replacement for ZR19M3E-TWD-961

Resideo VR8304M3509 Gas Valve 321702-401 this Type 122 component featuresThe Resideo VR8304M3509 Gas Valve is a heavy duty single stage intermittent pilot dual automatic valve engineered for high capacity atmospheric boilers, commercial water heaters, and furnaces. Featuring a 1 2" x 3 4" inlet outlet configuration, this 24VAC gas valve delivers a capacity of up to 270,000 BTU, making it a versatile component for demanding mechanical rooms. Designed for natural gas applications, the kit includes a natural to LP conversion