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15th October 2020, 07:17 PM
#1
Automated Home Lurker
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16th October 2020, 06:40 PM
#2
Automated Home Ninja
I’m sorry but I can’t seem to view your diagram.
Why use Heatmiser at all? If you don’t want to use HCC80 you can instead control each zone’s actuator by a BDR91. Then use a T87RF, DTS92 thermostat or EvoHome itself as the sensor in each zone. Simple.
You use another BDR91 or OpenTherm bridge as your boiler control.
And the hot water kit BDR91 controls the hot water valve, opening it and shutting any CH valve if you want DHW priority heating.
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21st October 2020, 08:07 AM
#3
Automated Home Lurker
Hi Kevin,
Thank you for your response and apologies for the delay in coming back to you.
You have simplified it one stage further beyond what I thought possible - good suggestion. The only reason I am using the Heatmister is to have a physical connection to the boiler, and means all electrical connections are made within the same unit. Just preference on my part.
The main take away for me is that my proposed layout is feasible
The wiring diagram I plan to install is shown on pages 6/7 of the manual below:
https://www.underfloorheating.co.uk/...127465/UH4.pdf
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21st October 2020, 07:25 PM
#4
Automated Home Ninja
I think the recommendation according to the installation manual, when you have HR92s, is to have a wirelessly connected BDR91 or R8810 boiler control, not a wired connection.
You can still use your UFH wiring centre for controlling the actuators and pump.
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