Recent content by Onlydiy

Hi @SUNRAY, yes, it was following your instruction on post 17 is what i connected the grey (you did said it could be either grey or orange) to the boiler live which helped in isolating the 2 valves and they now work independent of each other. After doing this the UFH is NOT receiving hot water...

If i connect only one valve to the boiler, then how would i enable the boiler from the other valve if i use it enable the pump?

I FIXED IT! Feel so happy. Yes, there is no doubt that the wiring centre instructions are incomplete, in fact, incorrect. Sometimes, we are so much into the the jungle that don't see it, you need to come out of it to see it. As I said before, the 2 valves had 2 thermostats, if both were...

Lol..I bought this expensive unit for it to work but guess was wrong. I tried that way but the boiler doesn't react, the valve opens and the pump starts but the boiler doesn't kick in. No clear instructions hence posted here. Any cheap wiring centre recommendations . Maybe that's the last...

Thanks, but then going with your diagram, how would the ufh valve and pump enable the boiler?

@EFLImpudence, both valves turn on individually, and turn off also individually but if both are on at any given time, then either of the ones don't turn off unless the other is turned off as well. Mind you the thermostats do turn off but the valves don't. This is exactly how it is connected and...

Thanks, this is making sense and I get a feeling this is exactly how i have it connected. But what do you mean by a controller? And the orange cable is connect to the boiler enabler at port 10, which is the LS port in the heatmiser UH4 wiring centre, how would the same above diagram look like...

Hi, Thanks for your reply, but sorry I do not understand few bits here. When you say "Switched live goes from controller to thermostat" by controller do you mean the boiler enable cable? I thought, it goes to LR port on the heatmiser UH4. And also I have 2 thermostats, one for each valve...

Hi, I am looking for advise on a zoneing issue on heating system. I last year migrated to heatmiser uh4 wiring center, I believed I did the wiring correct and lived with it for a year. But this time being cautious about the utility bills I have been monitoring my usage. But I found an which...

Hi I have a valiant protec 28 combi boiler and is wired thru a honeywell 10 way junction box. I have to add some new zones so thought of getting a heatmiser uh4 wiring box but I am confused as to how do I migrate the wiring connections from the old to the new heatmiser UH4. All the connections...