The Rayburn and its S plan

[kevplumb]

stick an e mail addy in your profile

got some bumph on auto bypass

 

[twgas]

So....are there any tees between pump and mvs? (obviously there'll be one to split the pipe to the valves - so don't count that one)

 

[picasso]

this the one

http://www.rayburn-web.co.uk/Prodin... OF Nuway/Rayburn460-99K MX OF Nuway inst.pdf

if it is the primarys need to be in 28mm, no 3 ports allowed and a bypass in 28mm, there is a diagram near the bottom of the instructions showing the bypass arrangment.

 

[Burnerman]

stick an e mail addy in your profile

got some bumph on auto bypass

Think I managed that...maybe

 

[Burnerman]

this the one

http://www.rayburn-web.co.uk/Prodin... OF Nuway/Rayburn460-99K MX OF Nuway inst.pdf

if it is the primarys need to be in 28mm, no 3 ports allowed and a bypass in 28mm, there is a diagram near the bottom of the instructions showing the bypass arrangment.

Hey Picasso thats bang on! The system is the open vented type, with cylinder stat. As I said before, I don't know about the bypass, whether its there, or a radiator is performing the same role as I can't access the flow pipes to the rads at that point. One thing is for sure though, and the first reason for the post, there isn't an expansion pipe from the heating side at all - but there is from the top of the copper cylinder, naturally. Thank you so much for this - I've been working totally blind until now

 

[Burnerman]

stick an e mail addy in your profile

got some bumph on auto bypass

Number one man, mate
Cheers John

 

[Burnerman]

So....are there any tees between pump and mvs? (obviously there'll be one to split the pipe to the valves - so don't count that one)

I'll have a look again tomorrow - I've had so much assistance from you guys I can't believe it.....lots to digest! Cheers John