Expansion vessel position on unvented installation

[paulusgg]

My thoughts regarding the position of the expansion vessel is that as long as it's placed between the water control set and the cylinder cold feed then anywhere is acceptable. For maintenance purposes it would obviously be preferable to locate the vessel higher than the cylinder but as stated in the original post many of our cylinder installs are located in very tight locations where putting the ev high is not an option. Not if you wanted to check the pressure.
It seems that the only disadvantage to low level installation is that should the vessel fail the cylinder would need draining.
And to gain clarity on the issue I discussed it with the technical department at Kingspan (we fit mainly Albion or Tribune cylinders) who stated that anywhere between the inlet set and the cylinder was OK and that the MI's schematic showed the preferred position.

 

[Best]

And to gain clarity on the issue I discussed it with the technical department at Kingspan (we fit mainly Albion or Tribune cylinders) who stated that anywhere between the inlet set and the cylinder was OK and that the MI's schematic showed the preferred position.

The photograph I see and the drawings from MIs of the preferred position of vessel is only to simplify it for us, I believe. Guess just to show vessel last thing before cylinder feed in.