A.O. Smith 405 Series - Manual (Page 3)

3
COMBUSTION CHAMBER ASSEMBLY COMPONENTS
INSULATION ASSEMBLY COMPONENTS
Gas Valves
Gas Train Used Description
211081 191956-2 Gas Valve, Natural Gas
211081-1 191956-1 Gas Valve, Propane Gas
211082 192454-3 Gas Valve, Natural Gas
211082-1 192454-1 Gas Valve, Propane Gas