sundial y plan

[red13]

can anyone help with the following:
can this plan be run by a single port(tempus one) controller.
the wiring at the controller is N-E-L IN LIVE LINK TO (1) boiler live and two feeds to the boiler area Hw and Ch. i have a wiring diagram which shows a hw off connection, i dont have a wire at the programmer to connect this. I assume a different method has been used???

I want to connect everything to a 10 way junction but without the hw off , i dont think it is possible.

thanks
red13

 

[D_Hailsham]

can this plan be run by a single port(tempus one) controller.

No

 

[bengasman]

As y plan is designed to independently control ch and dhw, you need more than one signal. Why would you want to stick a tempus 1 on a 3port valve?