Wiring of an Drayton acl 2 port motorised valve

[Rfreeman2]

I'm re wiring a heating system and have sused out most of the wiring the entire system wires to an old mechanical time clock and converting it to a new Danfoss 2 channel programmer and wondering where in that timer I can wire the valve to inside in the new timer 1 being -dhw off, 2-htg off , 3- dhw on , 4-htg on also the orange and grey of the 2 port are in the same terminal , any help is much appreciated

 

[twgas]

Have you just the one motorised valve? Bit unusual these days, but not unheard of.

 

[Justin Passing]

You might have the old "C Plan" setup. If you google that you'll find loads of diagrams.