system boiler with copper vented cylinder.

[Ermintrude]

Ok so it's a complete new fix but using old cyl. Defo set it up as an S plan and run in the d2 while your on.

 

[the_d_o_t]

i am getting my mate in at the end of the week who is more experienced to wire up the s plan but i need to get everything in before he comes so all will be checked over,
but I've got my head round it now.
thanks to all the guys who helped.

 

[chris watkins]

i am re piping the heating system and installing new rads anyway and new boiler is going into a different location so all its all new pipework with new controls.

So it does need a new cylinder then !!! Once you start re-pipeing it is classed as a new system.

Please read the Part L compliance guide link I posted. If not sure then ask away but when you sign off the boiler with GS you are supposed to have your part L ticket & self cert it as being fully compliant with the Building Regs with notification going off to local Building Control.

 

[the_d_o_t]

so even if i install a conventional boiler the cylinder has to be replaced because i am upgrading everything else?

 

[chris watkins]

so even if i install a conventional boiler the cylinder has to be replaced because i am upgrading everything else?

New boiler (whatever it is) with new pipework & rads = new system & cylinder has to be up-graded to a compliant Part L cylinder.

 

[the_d_o_t]

Ok so it's a complete new fix but using old cyl. Defo set it up as an S plan and run in the d2 while your on.

Run in the d2? the boiler has blow off and hot water cylinder will have water expantion into cold tank.
what do you mean by "run the in d2 while your on"?

 

[SimonG]

If at a later date they do go unvented then whilst everythings a mess run a couple of lengths of pipe under the floor for the future discharge.

 

[the_d_o_t]

If at a later date they do go unvented then whilst everythings a mess run a couple of lengths of pipe under the floor for the future discharge.

ahh i seee! will do.

 

[Ermintrude]

But you need to size the d2 accordingly. Wop in 35mm

 

[doitmyself]

http://www.planningportal.gov.uk/uploads/br/domestic_building_services_compliance_guide.pdf
Table 4 Page 19, Yes if Gravity Primary's but its worth a read through the rest of it.

Its the controls that have to be ungraded, not the cylinder itself i.e. fully pumped, separate control, cylinder stat, etc.

Please read page 9 Para 1.7 of the above link.