joe90 Posted January 8, 2022 Share Posted January 8, 2022 (edited) As some of you will have seen I am having problems with my UFH and need to change the way it’s designed, this raises a problem in that I have no wiring from the room stat to the ASHP bit went to the UFH manifold) but I need to signal between the two. I have heard of kinetic switches, is their a product you would recomend to do this fir me? Edited January 8, 2022 by joe90 Link to comment Share on other sites More sharing options...
ProDave Posted January 8, 2022 Share Posted January 8, 2022 Don't re invent the wheel. if you need to convey the signal from a room thermostat to a remote location without wires, start with a wireless room thermostat e.g. start with this selection https://www.screwfix.com/c/heating-plumbing/wireless-thermostats/cat4600004?cm_sp=managedredirect-_-plumbing-_-wirelessthermostat For just "simple" i would choose this one https://www.screwfix.com/p/danfoss-ret2001rf-rx1-s-wireless-room-thermostat-and-receiver/856jt 1 Link to comment Share on other sites More sharing options...
joe90 Posted January 8, 2022 Author Share Posted January 8, 2022 Thanks @ProDave, only problem I have is it needs to also switch the manifold pump which is in a different location so I was going to put the wireless switch next to the manifold pump (and hopefully be mains driven as I hate batteries?) so when the room stat turns on the pump the wireless bit fires up the ASHP ? Link to comment Share on other sites More sharing options...
Temp Posted January 8, 2022 Share Posted January 8, 2022 There are plenty of wireless systems for general use but perhaps see... https://plumbbox.co.uk/product/mains-switch-rf-solution-alternative-to-cabling/ 1 1 Link to comment Share on other sites More sharing options...
ProDave Posted January 8, 2022 Share Posted January 8, 2022 24 minutes ago, Temp said: There are plenty of wireless systems for general use but perhaps see... https://plumbbox.co.uk/product/mains-switch-rf-solution-alternative-to-cabling/ That's a neat solution and would allow your one existing thermostat to continue driving it's existing load and at the same time switch another remote load via radio. Link to comment Share on other sites More sharing options...
joe90 Posted January 8, 2022 Author Share Posted January 8, 2022 Thanks @Temp and @ProDave that is the answer, well done. I am still ploughing through my old wiring as I can’t remember what I did ?, I must draw a proper diagram and schematic. ? Link to comment Share on other sites More sharing options...
ProDave Posted January 8, 2022 Share Posted January 8, 2022 13 minutes ago, joe90 said: I am still ploughing through my old wiring as I can’t remember what I did ?, I must draw a proper diagram and schematic. ? I am using my present slack period to start compiling the "house manual" to document everything, before I forget it. 1 Link to comment Share on other sites More sharing options...
MJNewton Posted January 9, 2022 Share Posted January 9, 2022 I had to do something recently - enable the connection between a wired thermostat and the heating wiring centre, but without a wire as the renovation work that will provide that opportunity to run one hasn't started yet. What I opted for was a pair of Shelly 1 smart relays with the thermostat output connected to the switch input on first relay which is configured to remotely activate/deactivate the relay on the second relay which in turn is wired into the wiring centre. It is only intended to be temporary hence didn't want to spend too much (it was only £20) but it hasn't skipped a beat, or at least not since fitting an RC snubber a few months back on the output of the second relay and it seems that when turning off the zone valve (or CH pump?) was inducing some sort of spike that kept resetting the relay - seems to be a known issue with inductive loads and I later found out they sell their own snubber for this sort of application. Link to comment Share on other sites More sharing options...
joe90 Posted January 10, 2022 Author Share Posted January 10, 2022 Sit rep, I found a spare cable the electrician put in, have decided on the new wiring so later this week will re plumb and re wire ? 1 Link to comment Share on other sites More sharing options...
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