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Barometric Damper

RoosterBoy
RoosterBoy Member Posts: 459
in THE MAIN WALL
hi is this normal my tech just did the efficiency test today on my boiler and what happens is when the powerventer starts the door on the damper opens then when the burner turns on and fires it closes for 1-2 sec then opens back up again is this normal or should i have him back again for a recheck

thanks

Comments

  • Weezbo
    Weezbo Member Posts: 6,232
    power venter isnt speaking correctly to the burner...

    might be the pinner #9 dip switch... Ooops, Do you mean a Barometric damper?
  • john@TR
    john@TR Member Posts: 26
    draft regulator?

    What you're calling a damper is more correctly referred to as a draft regulator (I think). It sounds as though it is working correctly if that's what it is. The momentary closing on start up is caused by the sudden positive pressure in the flue at the moment of ignition. As long as it isn't thumping more than what you're used to (like it would if there was delayed ignition) it's probably alright. The draft regulator is being pulled open by the pwrventer to prevent the high stack loss that would otherwise occur. It pulls air from the room instead of heat from the flame if you know what I mean.
  • curiousity kills
    curiousity kills Member Posts: 118
    mmmmmmmmmmmmmm

    Please dont take offense but I think you have too much time on your hands.The baremetric damper will do that.
    I would not sweat it.
This discussion has been closed.

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