Trianco-Heatmaker 36D27 Gas Valve Type 201

White Rogers 36D27 Gas Valve, Type 201The gas valve is a solenoid operated, negative pressureregulated valve. The outlet pressure is regulated at minus 0.2inches w.c. It is designed to operate with supply pressures of4-13 inches w.c. Within that range of supply pressures, theregulated discharge pressure may vary from minus .05 tominus .35 inches w.c. The regulator is not adjustable and theeffect of this variation in discharge pressure is not significant.Because of the fixed regulator setting, gas flow must beadjusted by changing the gas orifice.