pre and post purge

Live/Learn

Hi! A question from a home owner diy . I recently installed a burnham v83 to replace an old weil that was 45 years old, My new boiler has a beckett burner with a pre and post purge feature. When ever the burner comes on it comes on with a "bang" sometimes more than at other times. I expect some noise as I realize that the pump is going from almost no pressure to 180psi all at once. My question is is this harmful to the boiler? I have noticed what appears to be small hairline cracks in the target wall when viewed from the inspection port. By the way a tech from Petro came by and set it up with instruments. Thanks learn /Live

John Starcher_4

I believe......

....that an improper "Z-dimension" setting will cause a noisy startup on these burners. My experience has been that you need to physically check the Z setting, rather than rely on the little sticker that shows the proper position of the electrode assembly. I think you need to reference the actual Beckett manual for this burner, as the Burnham manual does not specify the Z setting for a burner with an L head on it. Last V83 I installed came with the Beckett manual along with the Burnham manual.

Hope this helps.

Starch

J.C.A._3

Does this beast.....

Happen to have an outside air intake kit on it ? If it does, check Beckett for a nozzle line heater. Cold oil tends to light hard, and outside air will be flowing down that blast tube while the unit is off. This is definately NOT a diy project. It needs to be wired properly so it doesn't shut off during the off cycle! Chris

ed wallace

new burnham

oil pressure is way to high needs to be changed you need a tech to do all the adjustments using a combustion test kit it cant be done by eye

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Live/Learn

pre and post purge

Hi again and thanks for your help so far. I'll give some more information to clearify my situation. I'm running a .75-45 degree solid nozzel @180psi as stated in my Burnham literature. I had it instrument tested by a Petro tech and the readings are as follows: draft: .02-.03; stack temp: 400 net; co2: 12. I do not have or require o/s air for combustion as the boiler area has adequate ventilation. I hope this helps, Thanks again.