67coupe390
Well-Known Member
I'm having valve issues and am wondering if I'm using the wrong valve. This HVACR > Controls > Gas Valves > Valve,Combination : Grainger Industrial Supply is what I am using. The problem is that the valve will not always shut off when the controller tells it to. When the controller ( A cal 9900 CAL 9900 Temperature Controller ) calls for heat a light will come on and when it is suppose to turn off the valve the light goes off. I hear the solnoid click on and off but the valve doesn't always turn the gas off. My setup is this I'm using a 20 psi regulator hooked up to a 20lbs ( ? ) propane tank. This is plumbed into a 1/2" black pipe manifold that feeds all three burners in my rig. The HLT and the boil burners have just ball valves. The mash tun burner has a ball valve and the combo valve. This problem happens even when just the mash tun burner is going Any ideas? Thanks.