zoned heating

[AWheating]

ok back to question in point the rads are pipe upstairs one circuit and down another one, so is there a valve I can put on the pipes that can control either up or down and do they wire into boiler somehow

2 x 2 port valves, room stats, timer and boiler all wired to junction box power'd by a double pole isolation point (sometimes through boiler first) pump either in boiler or external.

heating engineer or sparks needed, must be wired/tested/signed off by competent person.


are you sure the system is seperated? its not gravity upstairs?

 

[th3pony]

yes we put pipes in ourselves so have 4 rad pipes 2 for downstairs rads 2 for upstairs. I'm a spark myself let me see if I've got this right the 2 x 2 port valves the room stat/timer and the boiler all connected up in jb

 

[AWheating]

yes, you need a room stat for both zones.

http://www.google.co.uk/url?sa=t&rc...EQ9iJiESbkpX1kg&bvm=bv.44158598,d.d2k&cad=rja

follow the honeywell wiring guide and your boilers manufacturers instructions. Be careful tho, some boilers require you to be gas safe registered to remove the case.

you will need to fit a bypass valve before the port valves across the primary fow and return.

 

[th3pony]

ok I'm pretty much there on this now it's a lot to get head around the wiring diagrams alone are headb spinner but not seen anything about this bypass valve what is it for

 

[AWheating]

its to ensure min flow rate for boiler/pump is always available amoung other things. Some boilers may not require one, many do and its best practice really. When both motorised valves have shut closed or all trvs have closed for example the pump may still be running (pump overrun) and need some form of circulation.

 

[Howsie]

Why don't you get someone in to do it for you?

 

[th3pony]

because i like a challenge and i am trying to keep costs down, ive got all the electrics sorted in my head and sourced all the parts off ebay. 2 x 2 port valves, 1 x 10 way connector unit, 2 x room stats and 1 x 7 day 2 channel programmer. let me know if ive missed anything

 

[th3pony]

Enlarge

HONEYWELL ST9400C1000 - 7 Day Programmer 2 Channel

is this suitable for what i need

 

[lame plumber]

because i like a challenge and i am trying to keep costs down, ive got all the electrics sorted in my head and sourced all the parts off ebay. 2 x 2 port valves, 1 x 10 way connector unit, 2 x room stats and 1 x 7 day 2 channel programmer. let me know if ive missed anything

mop and bucket

 

[th3pony]

can anyone suggest a suitable programmer for what i need