Hi folks, called out to the above boiler (balanced flue), going to lockout. Everything very sooted up. Nothing has been done to it for about 10 years.
Motor was screeching so changed bearings, set pump pressure to 100psi as per tag on burner, cleaned out baffles, combustion chamber etc and fired up.
Nozzle 0.50 80 W, Smoke level 0-1, put Combusion Analyser probe in and gave me a reading of 8% CO2 and 1,400ppm CO. Some fumes in boiler area. Shut off and isolated (getting dark and running out of time). Noticed that the outlet part of the balanced flue seems to have a seam in it which has come open so I guess tha fumes are getting drawn back into the fan and that must be the problem. Will go back tomorrow to investigate further.
Anyone any experience of this particular boiler? Is the flue a common problem? Do you think it's the flue which is causing the problem?
Motor was screeching so changed bearings, set pump pressure to 100psi as per tag on burner, cleaned out baffles, combustion chamber etc and fired up.
Nozzle 0.50 80 W, Smoke level 0-1, put Combusion Analyser probe in and gave me a reading of 8% CO2 and 1,400ppm CO. Some fumes in boiler area. Shut off and isolated (getting dark and running out of time). Noticed that the outlet part of the balanced flue seems to have a seam in it which has come open so I guess tha fumes are getting drawn back into the fan and that must be the problem. Will go back tomorrow to investigate further.
Anyone any experience of this particular boiler? Is the flue a common problem? Do you think it's the flue which is causing the problem?
