Search:

Type: Posts; User: rvb99

Page 1 of 4 1 2 3 4

Search: Search took 0.00 seconds.

  1. Replies
    28
    Views
    2,580

    Fot us we only have a day and night setting for...

    Fot us we only have a day and night setting for the ufh zones. We have 14 radiators in the system controllered by HR92s ( some in groups using Y87RF
    sensors ) . No open therm. Input temp to ufh...
  2. Replies
    28
    Views
    2,580

    Im not sure fitting flow sensors and HM80...

    Im not sure fitting flow sensors and HM80 actuators will make much difference. The ufh pipes are run at fixed mixed temp or they are off. The heat regulation is a function of evohome turinÓg the ufh...
  3. Replies
    28
    Views
    2,580

    There are 2 techniques you can use - both only...

    There are 2 techniques you can use - both only need a single BDR91. In my proposal you wire the ufh circulating pump in parallel with the actuators. When the zone requests heat via the YRF87 temp...
  4. Replies
    28
    Views
    2,580

    Power draw from the manifold actuators and pump...

    Power draw from the manifold actuators and pump is negligable. In any ufh you should ensure the pipe circuit lengths are more or less the same within a few metres.
  5. Replies
    28
    Views
    2,580

    Since you have a single zone ( just the kitchen)...

    Since you have a single zone ( just the kitchen) the simplest and cheapest is to wire the ufh 3 manifold valves in parallel to a bdr91 also with the ufh circulation pump ( use a connection box) . You...
  6. Replies
    2
    Views
    720

    https://homecomfort-techlit.resideo.com/emeadocume...

    https://homecomfort-techlit.resideo.com/emeadocuments/uk01/wirelessbinding-ig-uk01r0317.pdf
  7. In all but the simplest room configurations I use...

    In all but the simplest room configurations I use a separate room stat. I think itís pretty obvious that if you have a sensor such as a HR92 mounted on the radiator itís never going to give you the...
  8. Using iPhone 7, with ios12. For just reading...

    Using iPhone 7, with ios12. For just reading parameters generally ok. Occasional crash when adjusting parameters but no worse than with ios11.x
  9. When the ufh is operating the aim is to keep the...

    When the ufh is operating the aim is to keep the manifold temperature and water parameters constant. The temperature set up in the system is such that under normal operating the floor will never go...
  10. These thermostats only trigger in exceptional...

    These thermostats only trigger in exceptional circumstances and have to be manually reset . In our system the safety cut off thermostat is mounted on the side of the output manifold . if the temp...
  11. Hi Peter, All the temperature safety aspects...

    Hi Peter,

    All the temperature safety aspects of water ufh are done in the ufh circuit, and are nothing to do with the smart controls that are setting room temp and schedule. Either you have a...
  12. Replies
    16
    Views
    1,973

    Thereís a bridge on eBay for £63.45 with postage...

    Thereís a bridge on eBay for £63.45 with postage and a few Y87RFs starting at £50
  13. You can have a bdr to switch ch flow to each...

    You can have a bdr to switch ch flow to each zone, BUT you need a temperature sensor for each zone . Evohome requires this . Hence if you want to switch based on time schedule only you will need to...
  14. You will still need a temperature sensor for each...

    You will still need a temperature sensor for each zone controlled by a bdr, even for the non trv ( none zone valve?) bathroom zone. In the later case simply set the sensor to the lowest value Temp...
  15. Replies
    3
    Views
    1,335

    You will also need to wire the ufh mixing pump to...

    You will also need to wire the ufh mixing pump to either the bdr or the other option is via the switch output of the zone valve( if fitted) . With no zone valve I guess all actuators would have to...
  16. Replies
    16
    Views
    4,208

    Your set up seems a little confusing. The heating...

    Your set up seems a little confusing. The heating bdr should be bound to the evohŰme which it seems it is as the ufh comes on and the boiler fires.

    Now for the upstairs .Is it that the boiler...
  17. Replies
    16
    Views
    4,208

    If all radiators are HR92s there is no need for...

    If all radiators are HR92s there is no need for zone valves actuators. As you suggest it seems to be a zone valve problem so I would start by disconnecting the zone valves and manually opening them...
  18. Replies
    5
    Views
    1,450

    Weíve got a couple of TF87RFs . They work fine...

    Weíve got a couple of TF87RFs . They work fine and the non techies have no trouble using them . Btw if you buy via the French or German amazon they are around Ä68. Search for T87RF2059 - instructions...
  19. Replies
    6
    Views
    1,687

    Anything showing on the controller .such as...

    Anything showing on the controller .such as window icon for the zone , error messages in the fault log etc ?
  20. Replies
    13
    Views
    2,242

    Usually the radiator circuit pipe is much too...

    Usually the radiator circuit pipe is much too small to feed the ufh . We have 90m2 of ufh with 7 hydraulic circuits of 80m each. To feed this Iím running 32mm diameter Multilayer pipes some 15m from...
  21. Replies
    12
    Views
    6,022

    I donít believe you can mix hcc controller and...

    I donít believe you can mix hcc controller and HR92s in the same zone. You could I guess use one of the hcc ports to control a wired radiator actuator , rather than use the HR92. This will ensure...
  22. Replies
    12
    Views
    6,022

    Have you tried increasing the ufh mixing (...

    Have you tried increasing the ufh mixing ( manifold ) temperature . You can usually increase to around 45-50deg , still keeping the floor temp itself to the max recommended 26-27deg. Also check the...
  23. Replies
    3
    Views
    993

    No sure if you need to rebind the dts92 as the...

    No sure if you need to rebind the dts92 as the zone may take the sensor off the last HR92 added. Is a change in the dst92 setting being correctly reflected in the HR92s and is the desired zone...
  24. Replies
    7
    Views
    2,149

    Interesting. I just checked the valve positions...

    Interesting. I just checked the valve positions of our 5 radiator zone and they are all absolutely identical at 37 and all are mid-warm. One of those radiators is larger than the other 4. However Iím...
  25. Thread: EvoHome Zones

    by rvb99
    Replies
    17
    Views
    4,621

    They have to operate in tandam For a single zone...

    They have to operate in tandam For a single zone as the HR92 acting as sensor could be replaced with a room thermostat . In that case the system would have to synchronize the 2 HR92s .
    Btw in my...
Results 1 to 25 of 76
Page 1 of 4 1 2 3 4