potterton heatmax combi 28 he

[plumbbobshan]

Morning lads and lasses.
Just a quick one , I am having no end of chew on with air in a 7 rad system in a bungalow. Dose the said boiler have a high level AutoAV on top of the heat exchanger (back rear under the condensation tray ? )can't find a exploded view of it !
Thanks in anticipation

 

[Gasmk1]

its on the pump rear of pump housing on left

 

[plumbbobshan]

Thanks for that , I can see that one. Is this only one on the boiler high ?
There is what looks like a dust cap on top of the heat ex with a steel retaining clip in it !

 

[AMGasServices]

The earlier models (those with the bypass) have an aav above the heat exchangers however those without the bypass don’t have it.

 

[plumbbobshan]

Thanks AMG I am going to have to install an additional AAV say at ceiling height to vent. I have worked on gravity systems that a less hassle. Cheers

 

[AMGasServices]

Thanks AMG I am going to have to install an additional AAV say at ceiling height to vent. I have worked on gravity systems that a less hassle. Cheers

Do you have heating pipes in the loft? If so install an aav in the loft.

 

[plumbbobshan]

Unfortunately not but I have a boiler room/ store in the middle of the bungalow so the the pipe work is not a problem

 

[Gasmk1]

Fit an air separator then instead of aav