S PLAN Plus

[sparkykarl]

Hi Guys,

Just a bit of knowledge really, I have a customer requesting a job which involves me wiring up his heating system

Worcester Bosch 35 CDI Combi Boiler
Worcester Bosch Greenstar (believe its a condensing boiler)
3 Honeywell Zone Valves ( Undrfloor Heating, Flow and return?)
Megaflow Tank
RWB29 Programmer
2 Wireless Thermostats (not sure of make or model)

I understand the S Plan Plus wiring but not sure how to connect the second boiler into it all. He Has 3 floors of which he wants the top 2 floors working off one boiler and ground floor off other?

Any IDEAS?

 

[Timbo_1975]

I should think the plumber needs to come in first and hook up all the pipework correctly! If the 2nd boiler is only going to run the 2nd & 3 rd floor rad's, then it'll be a very simple system, and the 1st boiler doing the UFH and HW tank completely unconnected to the other system other than via the (2 or 3 channel) programmer....

 

[topquark]

I'm with Timbo ^^^^^ let the plumber weave his magic and let him tell you how he's configured it. He may derive hot water from one tank only (or both). Both boilers will prob supply CH. He may end up having to replace and reroute the gas supply as well (replacement bonding potentially to do) as these things are hungry beasts especially if the run from the gas meter is a long run.