heating connections

[jmc1683]

so I've got an s plan heating system in 3 story house, separate valve and stat for each floor, then the hot water valve and then another valve for underfloor heating in extension. altogether 5 valves. so this wont work on standard 10 way honeywell junction box right? I'm learning these systems and want to understand them better, please talk me through it a bit and if possible direct me to suitable wiring diagram that would be close to this, i'm looking at the standard s plan, im thinking you would need larger junction box to have each stat operating each valve seperatly?

 

[jaydee81]

would suggest looking at the honeywell wiring guide issue 16 the s plan plus shows 3 zone valves one hot water and two heating zones would just need to incorporate a couple more connectors in wiring centre

 

[bigspark17]

Same as 2port s plan system but extra 3 zones! Be carefull you dont back feed your UFH pump when other zones call..

 

[jaydee81]

would need to control ufh pump through a relay honeywell u plan shows set up

 

[onions1066]

Download the honeywell app its pretty basic from there.

 

[Redvanman]

Use a time guard connection box, loads of room, loads of connectors or even two if it's easier
As said above the same as a 2 x 2 port system with additional valves
spend a bit of time drawing out the wiring and you will see its only basic switching
good luck