Ah interesting, it looked like a generic kindof silver box to me so I wondered whether it was powered both ways or not, good to know! Did you get it?
Indeed - the photos look like a grey box on the side of a T. I’ve bought one and it looks nothing like the photo. It’s in an L configuration (ie the feed goes into the left and either goes straight ahead or turns 90 degrees). This is different from how my original valve was installed so I’m awaiting someone to come to refit the pipes. My original diverter valve has the flow going into a T junction whereby the flow either turns left or right.
HPID120 is powered in both directions and is not a spring return device. It takes three wires: live, switched live and earth.
Ah right, sounds like one of the ESBE valves - one of those did the same, e.g. could go straight ahead or 90 degrees, I got the one which can go left or right, t-junction style, mainly for this purpose I guess - so pipework didn’t have to be messed with too much.
You’ll be glad when that damn banging is gone at least! Mine sounded horrible. It’s lovely and quiet now, just the sound of the actuator and some whooshing as the ports gradually open and close.
Slightly unrelated note - my air issues returned, I do not believe my installer used inhibitor when commissioning the system which is flipping annoying, so I think this is the source of my issues, well fingers crossed anyway (as I have now added Fernox F1).