Thanks Andy
I Don`t think it has a coil circuit (IE going into a inner pipe) its
just vacant open space into the tank space ,as with all the holes
.....Just two 22mm Ports Standard on oneside Top and bottom..(I assume
I have to blank them off ,maybe manufactered to a standard pattern
but without the coil with the Direct, and perhaps with,coil in the
case of the indirect ..)
One hole on opposite side Top 22MM (maybe this is the draw off point
?)
and ....Bottom 15mm obviously for Drain off Plug/tap
See this link for drawing copy and paste
http://www.heatandplumb.co.uk/acatal... linders.html

It it an Albion direct combination hot water cylinder with integral
header tank the expansion pipe is built in and feed into tank .....but
no hole for ball valve or overflow , I think you have to cut them
yourself to suit positioning I guess ?
Thanks

Midboy Keith @