I have to go back to a make up air unit in the morning where I think I have a bad Modulating gas valve on a make up air unit.
It runs on LP and I get Pilot and I sens Flame just like I should. It tells me that the Main valve is on but my burner is only 1/3 lit.
about 23 volts DC to my Modulator (I am pretty sure that means It is supose to be full open) but like I said the burner is only 1/3 lit.
I know how dumb this might sound to all of you but I cant for the life of me see where to measure gas PSI from on this modulaiting Valve.
It is close to below Zero Temps up here in Milwaukee WI and I am trying to rule out if a regulator is frozen up or somthing like that before I condem this valve. (I am sure it is not a cheap one)
I only had 1.5 hours to look at this thing before I had to go home so I am going back tomarrow to look at it closer.
dose anyone have some any Ideas of stuff I can rule out before I send this valve to the Maxitrol grave yard.
Its a MR series gas modulator. Main valve is opening I have not varified the exact gas PSI to it yet because I did not find a port to hook up my Magnahelic yet but I know it is at least getting some.
Most of my hour and a half in to it so far was just finding the thing and shovleing the snow from around it. a little time making sure the LP tank was full too.