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  1. #14
    Join Date
    Jan 2006
    Posts
    4
    Originally posted by just_opinion
    8.75 Mbar is equivelant to 3.32 IWC. This reading is the inlet gas preessure or the outlet gas pressure?
    This is outlet presure

  2. #15
    Mod3 Guest
    Unfortunately, due to site rules we as members can not discuss technical issues with the general public.

    Thank you for your cooperation.


  3. #16
    Join Date
    Jul 2000
    Location
    NW IL.
    Posts
    3,935
    Originally posted by linas
    nozles are Nr.43 original, presure 8.75Mbar like recomended, gas usage in norm. I do not know what I can change.

    Gas orfices can agglutinate, restrict, just like oil nozzles with debris. Very small contaminates in the gas and at the furnace location will collect in the orfice opening. It takes a much longer period of time but it does happen. So you may have correct gas pressure to the burner orfices but not the correct flow.
    Aircraft Mechanical Accessories Technician. The Air Force changed the job title to Air Craft Environmental Systems Technician. But I've decided I'll always be a Mech Acc.

  4. #17
    Join Date
    Jul 2000
    Location
    NW IL.
    Posts
    3,935
    Originally posted by troyorr
    Slow your blower down.
    It is already on low.
    Aircraft Mechanical Accessories Technician. The Air Force changed the job title to Air Craft Environmental Systems Technician. But I've decided I'll always be a Mech Acc.

  5. #18
    Join Date
    Dec 2005
    Posts
    1,905
    You just inherite this unit or you have it for awhile?
    I don't think gas is you primary reason. Look for duct leaks
    I am surprise to hear the 3.5 IWC (EXACTLY) per manufacture recommend when you measure it at the outlet.
    If you are the home owner please call the professional
    If you are the professional, please go back to school go to the pro forum

  6. #19
    Join Date
    Dec 2005
    Location
    Newton, NJ
    Posts
    299
    Is this thing in a garage without any ductwork?

  7. #20
    Join Date
    Nov 2000
    Location
    Indiana
    Posts
    318
    High vent temp and low air temp rise? Is the inside of the heat exchanger sooted up?

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