firebird enviromax combi lock out

[dave176]

You seem to have 2 problems here.
Combustion problem, a indoor model will take he air for combustion from outside, you might see a small hole in the wall underneath or above where the exhaust leaves the building, can you trace these and post a photo of your boiler front?. The combustion gases may be short circuiting the air somewhere, maybe at the boiler.

EV problem, what is the vol of the EV and how may rads have you got?

I'm out at the moment but I'll put up a photo and video if possible later today. The EV is a 18ltr and there's 23 radiators on the system

 

[John.g]

The 18L, with precharge/filling pressures of 1.0bar/1.5bar will sufficient for a130L system with a hot pressure of 2.0bar, 190L at 2.3bar and 220L at 2.5bar.

I will PM you a well known Irish site which should recommend a good service person in your neck of the woods.

PM sent.

 

[dave176]

The 18L, with precharge/filling pressures of 1.0bar/1.5bar will sufficient for a130L system with a hot pressure of 2.0bar, 190L at 2.3bar and 220L at 2.5bar.

I will PM you a well known Irish site which should recommend a good service person in your neck of the woods.

PM sent.

Thank you John, very much appreciated

 

[dave176]

Thank you John, very much appreciated

finally got this sorted. actually did it myself. error code of green and red flashing light indicates extraneous light but this was only happening on the post purge causing the burner to lock out. I checked the burner that was just service a couple of weeks ago. I could see that the electrodes were arcking to the nozzle instead of each other so I adjusted the gap and tried again, still the same so I replaced the photocell and hey presto no lock out.
I won't be getting the same guy back for the next service anyway. Appreciate the help and suggestions lads

 

[dave176]

finally got this sorted. actually did it myself. error code of green and red flashing light indicates extraneous light but this was only happening on the post purge causing the burner to lock out. I checked the burner that was just service a couple of weeks ago. I could see that the electrodes were arcking to the nozzle instead of each other so I adjusted the gap and tried again, still the same so I replaced the photocell and hey presto no lock out.
I won't be getting the same guy back for the next service anyway. Appreciate the help and suggestions lads

Hi John, I hope you don't mind me messaging you directly. apologies in advance if you do. I'm just wondering about the nozzle that was fitted when the boiler was serviced. I'm running 23 radiators various sizes of course but I downloaded a manual for the boiler and the suggested nozzle for 31kw is a 0.85/80 ES but he fitted a 0.85/80 EH Could this be causing the burner to use more kerosene than it should?

 

[John.g]

Hi Dave,
I don,t think it will cause it to use more fuel, its probably just the spray pattern that's different although I suppose its best to keep to Firebirds recommended nozzle.

John.

 

[dave176]

Hi Dave,
I don,t think it will cause it to use more fuel, its probably just the spray pattern that's different although I suppose its best to keep to Firebirds recommended nozzle.

John.

Thank you John

 

[John.g]

Have a read of this Dave, or anyone else,you may find it interesting, I'm the one with the 16/17/year old Firebird that has never tripped on combustion failure in all this time, what a burner, a Riello G5X.

Thought I was PMing you!!.

Edit: I've removed this link and PMd you as I don't think its allowed on here.

 

[dave176]

Have a read of this Dave, or anyone else,you may find it interesting, I'm the one with the 16/17/year old Firebird that has never tripped on combustion failure in all this time, what a burner, a Riello G5X.

Thought I was PMing you!!.

Edit: I've removed this link and PMd you as I don't think its allowed on here.

lots of information there
especially regarding nozzles and pump pressure settings. from what I could see regarding the older boilers an average of 85% efficiency is pretty much as good as it gets?

 

[John.g]

lots of information there
especially regarding nozzles and pump pressure settings. from what I could see regarding the older boilers an average of 85% efficiency is pretty much as good as it gets?

Yes, that about the size of it, my 17 year old 20kw SE Firebird still runs with the same flue gas temperature as when new of 230/250C, gives around 83% efficiency, condensing loss of ~6% (for oil) + 11% flue gas loss).