**** Charland

Ragu

Is something restricting the draft? Most of the afterdrip problems I've run into usually were caused by a draft problem, resulting in excessive heat retention in the chamber, thereby cooking the nozzle. Good luck.

Ken D.

**** Charland

****, I have a Carlin 801CRD burner we did not install that is a year old. It is mounted on an older medium sized Weil-McLain pressure fired boiler.The problem is nozzle afterdrip that ends up on the floor under the burner. The boiler is slightly pitched toward the burner that I would like to correct, but the customer and boss both balk. The boiler feet are set in concrete, so it will not be easy to level, but we should as long as the customer pays for it. Is there anything else that can be done? The pump cutoff is good as well as the pump seal. Nozzle adapter checks out and I have been sure to bleed any air in the nozzle line. The nozzle has been Replaced. Of course the customer says that the old burner never had this problem even though the boiler has been out of level for years. Any advice will be greatly appreciated. As always, Thank you.

Firedragon_4

I haven't seen ****

here in a while and are you aware he is no longer with Carlin?

You're on the right track with the burner pitch. It must be from 2 degrees to 22 degrees downhill towards the chamber depending on the application, never towards the burner, NEVER! In your case about 5 degrees should do it.

I'd refer you to my latest article, which has a lot to do with this, but Fuel Oil News is having problems with their web-site, sorry!

If you want, you can also call either Dave Rousayne or Marc Bryden at CCT on Monday at 800-989-2275.

RonWHC

If the flange

is welded to the tube, you could try removing the gasket & replacing w/ fiber rope. Small diameter on top & larger on the bottom. If you can get a pressure tight seal, that might give you enough pitch toward the boiler.

Dick Charland

Ken, still alive!!

The after drip definitely sounds related to the boiler not being plumb/level. A small pocket level in the air tube should help check that out. Not sure what they had for a burner on the unit previously, I do know that they did use ABC pressure fired burner which was flange mounted and supported with pedestal. I would guess that if this is installed with universal flange and not OEM welded tube flange, the burner has "settled" back down and is pitched improperly. I'd figure what dimension I need to correct to and get some washers and refractory rope to shim and seal around air tube and flange. That should be a lot easier than correcting boiler orientation.

George is correct, I no longer work for Carlin but if I can be of any assistance cell phone # is still the same or you can reach me here. Although I don't post as frequently, I'm still monitoring on a daily basis. Glad to be of assistance, let us know how you make out.

Ken D.

****,

I did not know your were no longer wuth Carlin. Their loss. The boiler in question is a new customer and I have no idea of the make of the old burner. This does have a universal flange and I tried to pitch the burner as best as possible to no avail. It is most definately pitched the wrong direction. It is a pressure fired boiler. I have the combustion per specs and I don't know what else I can do for the off cycle draft. As I mentioned, all the Boss and customer see is they say they did not have this problem with the old burner, nevermind the reality. I'm thinking the old burner must have had something that allowed for a proper pitch or more off cyle draft. Have you had any good luck with the check valves that replace the nozzle strainers. I think that might be my next move, although I have found most times trying to compensate for a bad installation usually does not work. A pedastal mount might just be the solution. I'll let you know. Thanks to you and all.

RonWHC

Don't want to

steal ****'s thunder. But the problem might be w/ the universal flange. If this is on an 86 or 88 Weil, the large flange for positive pressures should be used. It does not allow flue gasses to work back past the tube to flange connection, which keeps heat @ the nozzles.

Dick Charland

Forgot to mention

Ken, Ron is correct, they make a pressure fired flange for that burner, wasn't sure what model boiler you had. I can't remember the model which had cleanouts up the side of the sections. It used an ABC lo/hi fired (3450 rpm) burner which worked very well in the boiler. Usually, someone didn't understand how the burner worked and thought they'd improve on things and put a new burner in. With the pedestal it was very easy to hold the pitch on the burner.

Dick Charland

Forgot to mention

Ken, Ron is correct, they do make a pressure fired flange for this burner. Check your bolt pattern dimensions, if I remember well, it had a smaller diameter overall. It would be advisable, not as much "slop" so to speak in opening diameter. If the boiler is out of plumb it still might not correct problem. I would venture a good guess that they had an old ABC burner on this. It was a 3450 rpm lo/hi fire burner which worked very well in this application. Unfortunately, lack of understanding of the burner, setup etc. often caused people to change it out to a "new" burner. The weight of the unit required a pedestal (steel pipe) to support the unit. I can't remember if the 801 has a threaded tapping on the bottom or not. No mattter, as I said yesterday, get your dimension, shim and support the burner with a piece of pipe to hold the pitch, floor flange etc., ingenuity is the mother of invention. I wouldn't worry about off cycle draft unless you have a bad chimney or something, what are the off cycle draft readings?? Personally, I'd stay away from a check valve in the nozzle, was never a big fan, I don't think that's the fix, again my personal opinion. Let us know.

Dave Palmer_3

are you

sure your still alive?

Firedragon_4

I'm starting to wonder

that myself Dave, LOL :-)

I think he's spending too much time around other burners. The 801 has always used a CCT pedestal, never a pipe mount.

'I can't remember if the 801 has a threaded tapping on the bottom or not.'

Ken D.

Ken D.

Thanks All

Thank you.