The Efficient Home Forum

Thanks. A couple more questions: Will this unit work with any 230v on/off actuator (i.e. the ones I have already)? The installation instructions talk specifically about the honeywell actuators. Is the Resideo Pro app required to set up the HCC100? The app seems to be designed exclusively for ...

I’m thinking of getting an HCC100 to replace an existing JG unit to control my underfloor heating and to integrate better with my existing Evohome system and my newish heat pump. I was thinking it should be a fairly straightforward swap but I see that there are a few connections on the HCC100 that I ...

I have an HR91 on a radiator in a hallway and I basically use this to drive all the towel rails along with any other radiators without smart trvs. It is programmed with a high target temperature for a couple of hours in the mornings and evenings when towels might need warming/drying. The towel rails ...

OK - so I think I’ve managed to get this partly working. The main heating circuit is set up with its BD91 as the Boiler relay and several HR92s as Radiator Zones. This has been working fine for a while. The second circuit feeds a couple of radiators with HR92s and I have managed to set these up as t ...

My heating system is set up with two physical central heating circuits each with a motorised zone valve. Each circuit has a number of radiators which are individually controlled by HR92s. The boiler is triggered by one or other of the zone valves. I have a BDR91 wired to each of the zone valves. But ...