The gas valve is a gas distribution device. When there is a need for more gas in the burner, a signal is sent from the PCB to the gas valve, which opens and allows gas to flow through the valve in to the burner or the pilot assembly dependant on the type.
Part fits 7176541 Vitodens 200-W WB2A 26kW Combi Boiler and 7176543 Vitodens 200-W WB2A 26kW System Boiler
Technical specification
Manufacturer Model No7824779Brand NameViessmann
Reviews
Viessmann Gas Combi Regulator VK4115V WB2A 7824779