Results 1 to 4 of 4

Thread: Evohome UFH setup

  1. #1
    Automated Home Lurker
    Join Date
    Sep 2014
    Posts
    1

    Default Evohome UFH setup

    Hi, I am in the process of installing UFH in our new extension, it is the PolyPlumb kit complete with pump , motorised zone valve and actuators. Looking through all of the HCE80 info Ican't see where to wire in the Zone valve, which begs the question, do I need one at all? if I do should it be controlled by a BDR91?
    Thanks

  2. #2
    Automated Home Legend top brake's Avatar
    Join Date
    Feb 2015
    Location
    the edge of the cloud
    Posts
    827

    Default

    Quote Originally Posted by 88Hardy View Post
    Hi, I am in the process of installing UFH in our new extension, it is the PolyPlumb kit complete with pump , motorised zone valve and actuators. Looking through all of the HCE80 info Ican't see where to wire in the Zone valve, which begs the question, do I need one at all? if I do should it be controlled by a BDR91?
    Thanks
    Just wire the zone valve in parallel with the pump
    I work for Resideo, posts are personal and my own views.

  3. #3
    Automated Home Legend
    Join Date
    Jul 2014
    Posts
    1,040

    Default

    Most plumbers will want to put the boiler's flow and return directly to the UFH manifold. And that's where you require the zone valve. If your entire UFH is doing just a single zone then you don't need a HCE80, just used a normal Y87RF kit that comes with a thermostat and the wireless BDR91, that can be used as your accuator to turn on the zone valve.

    Also if you need a motorised zone valve to control the flow to the entire manifold look into the "guardian solutions smart zone valves". Apparently the honeywell zone valves are not designed to stay on for great lengths of time and will seize over time in a UFH setting.
    Last edited by bruce_miranda; 26th May 2016 at 11:26 PM.

  4. #4
    Automated Home Legend top brake's Avatar
    Join Date
    Feb 2015
    Location
    the edge of the cloud
    Posts
    827

    Default

    The Honeywell zone valves are best in class and whilst not intended for continuous operation will be perfectly suited to a UFH application. Although arguably not required when you have a fixed blended temp pumped circuit UFH with manifold.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •