Gordon Piatt Gas Burner MN#FL

Options
Servicewiz_3
Servicewiz_3 Posts: 77
in THE MAIN WALL

I am currently working on a Gordon Piatt MN # FL Gas Burner. My Question is , what is the purpose of the Automatic positioning air cylinder & how is it properly set up ( in respect to) the modulation set up for combustion results ? Thanks in advance for this help !!

Comments

  • EBEBRATT-Ed
    EBEBRATT-Ed Posts: 21,328

    Are you referring to a "BIMBA" cylinder used to open air dampers on a G & P or a PowerFlame oil burner by using oil pressure to drive the cylinder? Never seen one on a gas burner. Air dampers on those gas burners are usually opened by linkage between the gas valve operator and the damper.

    Do you have pictures and a model # of the burner. G & P is out of business.

    Maybe it is a burner I am not familiar with.

  • Servicewiz_3
    Servicewiz_3 Posts: 77

    This burner MN is FL16 - GO - 75. I have the O& M manual. Even though GP

    Has been out of business for a while , I have found a good resource.

    This Prim./ Sec. Cylinder is linked directly to the burner modulation linkage. ( HW MOD MTR)

    I do see a section in the manual , describing , but I have never performed this. Just looking for some pointers on setting this damper up.

    17923498085283898585729987426392.jpg
    17923496434793243454547308238253.jpg
  • EBEBRATT-Ed
    EBEBRATT-Ed Posts: 21,328
    edited October 18

    I never worked on one of those burners with the linkage hooked to the modulate.

    I have worked on their burners with the manual knob as depicted on the upper half of the page you posted. Basically "Primary air" goes down the blast tube in the middle. Primary air is considered to be air introduced at the ignition/combustion zone,

    Secondary air is air added to the flame after the flame is burning. Hence primary/secondary.

    The knob or linkage is to vary the relationship to split the same air flow to "more primary" "less secondary" or "less primary" more secondary.

    In general, you want enough primary air to support the flame, so the burner runs smoothly. Lack of primary make the flame lazy and wandering and quiet. Too much primary will give you a harsh short hard flame that is noisy and may give you rough ignition. The manual shows how to adjust it. Thats about all I got. Usually the best approach is to start with minimum primary air and increase the primary just enough to get good combustion and let the secondary do the rest.

    Hope this helps.

Categories