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Riello 40 problem

zuluman · 2011-09-30 01:16:05

HI all, Riello 40 with following problem: OLD nozzle produces near proper shaped flame, a little dispersement. and some shooting stars. NEW nozzle (exactly same as old one re size, angle) creates dispersed, irregular flame with shooting stars. When I fire the burner outside the boiler with new nozzle, the shape is good but…

30-09-2011 1:16am

#1

zuluman

Banned (with Prison Access) Posts: 40 ✭

Join Date: November 2008

Posts: 36

HI all,

Riello 40 with following problem:

OLD nozzle produces near proper shaped flame, a little dispersement. and some shooting stars.

NEW nozzle (exactly same as old one re size, angle) creates dispersed, irregular flame with shooting stars.

When I fire the burner outside the boiler with new nozzle, the shape is good but has the shooting stars. Also some diesel is not being burned (prob that from the stars) as a small amount of diesel accumulates on the floor after firing for some minutes.

Oil pressure is 12 bar. Combustion head and air intake is set to manufacturers recommendation for nozzle size and was not changed between nozzles.

New nozzle is clean

There is no fuel filter on the oil line. I have not opened the pump to inspect its filter (if it has one?)

Any ideas for (A) the difference in flame between the nozzles (B) curing the shooting stars?

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