At Wits end w/ my own boiler

RopeaGoat

Thanks a bunch for the help. I made the adjustments to the PV last night, however, the stack temp shot up to 950 F. I did some more research today and think I need to take apart the Power Vent and clean that out. I do now have the SS2 literature and should be able to get to it on Saturday. Thank goodness for the ol woodstove and mild weather. Any other thoughts would be appreciated. Thanks again.

RopeaGoat

At Wits end w/ my own boiler

First let me say I'm a rookie oil burner tech. I've had my license for 1 1/2 years and took the NORA class through the New England Fuel Institute in Watertown. Passed the class and the state exam with flying colors. I service only a handful of burners so far (mostly friends and relatives) but that list is growing. I am very meticulous and follow a written procedure and usually get results between 82 and 85% efficiency ratings with 0 to T smoke. UNTIL I GOT AROUND TO DOING MY OWN OIL BURNER... I cannot seem to get it set up correctly. I own a Burnham V8 boiler with a Beckett AFG burner. Today I was bound and determined to set it up "right". I set the pump pressure to 140 psi, set the air band to 1.5 and the shutter to 10, replaced the nozzle to a .85 60 A (as recommmended in liturature, set electrodes and head properly and fired her up. My stack temp shot up to 650 F, I got a 0 smoke, a draft of 0.075, and a CO2 of 9. For a grand efficiency of ~74%. So for the next 1 1/2 hours I tweaked the air and the Pump pressure and could not get anything over a T smoke and a stack temp ~550 F and an efficiency not over 76%. I need to defer to the Wall Gods for some guidance and insight. What am I doing wrong? I'll be on and off the old computer throughout the night. Any help would be appreciated.

Maynard

Soot?

Sounds Like Boiler Needs A Vacuum Cleaning To Lower Stack Temperature?

Stewy_2

dont know if this is an idea

The follow info was in another post "steam Heat Woes" but this might help. If it is of any use let me know because Id like to try it.

--Also, if that Beckett AFG burner still has the centrifugal air damper in it, have it removed and a standard coupling installed. These dampers tend to stick, choking the burner's air supply and making it create smoke and soot.--

Unknown

That's alot of draft

The extra draft will help you pull the heat up the chimney!

RopeaGoat

Vacced the whole thing out. Took off the panels and top and brushed every crevass also. The powervent is a Side Shot. I have not made any adjustments to it. Maybe I'll turn the knob labelled "less draft" and see what happens?

Unknown

I agree with rw

That`s ALOT of draft,,is it a TJ?,, if so what model?

RopeaGoat

It's a TJ Model SS2. I cannot find the literature on this but I can pick some up at the supply house this week. Thanks for the help fellas, I really appreciate it.

GW

hummm

when you mention draft, are you negative? one would assume so, but please clarify. if it's negative, why so high? Are you familiar with draft adjustment on power venters? there's gotta be something here, keep us posted. your boiler sections are clean?


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TK03

Yes way too much draft. It should be about -0.02" not -0.07. This will cause the flame to leave the head, create soot, increase stack temp, lower co2 and lower efficiency. Get the draft down.

bruhl_2

HO here, so for what it is worth...
My Burnham V8, Beckett AFG lists the following:
Firing Rate GPH 1.05
Head Setting V1 [0]
Air Shutter 10
Air Band 0
Nozzle 1.00 x 60B
Pump Pressure 140

Unknown

Draft

The power venter damper or cone has to be adjusted to maintain a draft over-fire of approximately -0.02" w.c.. Also make sure that the burner swing door is secured correctly as air leakage there can also be problematic. We see numerous power venter applications like this where the venters damper has never been adjusted to maintain proper draft over fire.

Glenn Stanton

Manager of Technical Development

Burnham Hydronics

U.S. Boiler Co., Inc.

Steamhead (in transit)

Sometimes

you have to go thru the entire spec sheet and check everything. But the others are right, there's way too much draft.

Especially listen to Glenn Stanton, who posted below. No one knows Burnhams better than he does.

If controlling the draft doesn't help, make sure the proper static disk is in place and the head adjustment is correct. That is a V-83, correct?

Regarding Stewy's post below, I think Beckett had quit using centrifugal dampers by the time the V-8 series boilers came out.

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Unknown

I am aware of

the draft adjustment Glenn speaks of, but can find no mention of it for the SS2 model.
That being said, perhaps these are the instructions you`re looking for? (Pgs.15-16)

tommyoil

Beckett AFG

and a 60 degree hollow?? That doesnt sound right but without the spec sheet in front of me I cant be sure.

Unknown

Draft Adjustment

Depending on the age of the SS2 venter, the draft adjustment is either made outside on the discharge plate or inside on the back of the venter where there should be a black knob you turn to adjust the draft. This adjustment needs to be done with a draft gauge inserted in the front test port door to adjust for over-fire draft. Assuming this is a V83 Water boiler, the burner does in fact take a 0.85-60A Delavan nozzle. Also make sure the L1 head Z dimension is properly set when setting the burner up. Here are the burner specs for this boiler.

Glenn Stanton

Manager of Technical Development

Burnham Hydronics

U.S. Boiler Co., Inc.

Paul Fredricks_3

Yeah

According to the Beckett application guide, a V-83 takes a .85 60 A at 140 PSI.

Steamhead (in transit)

Tom, the reason for the 60° nozzle

is that this AFG variation has the adjustable "L" head. Some of the larger V-8 boilers take 45° nozzles in their AFGs. We're all used to the fixed "F" heads which usually take 80° nozzles.

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tommyoil

thanks

Thanks Frank

Maine Ken

950 should have tripped the reset on the SS2. If it didn't, I would highly recommend an extremely close inspection as to why not. Until I found the answer that power venter would not be used in my house!!!

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