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Thread: House Heat Wireless Radiator valve - will not open beyond 61%

  1. #11
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    Quote Originally Posted by fredd500 View Post

    I

    As a test, switch off your boiler and allow the thermostats to still try and control the heat. Whacking them up to 30 should open them quite a bit. Leave them a while and keep watch, when the temperature doesn't start rising, they should open a bit more, then a bit more and so on. If they never open fully then either your room is too warm already or I suspect you do have something faulty.

    Hope this helps
    Have done as you suggest. After some time of manually setting 30 c the stat value increased to 94%. The room temp however was only 20 c.

    I think 2 things are important here. 1) The rad which are giving me this problem are towel rail type rads 2) the rooms are small - bathrooms.

    Things work in the sense that when the temp is set low the rad turns off and when it comes on it heats the room.

    But all the same I should have been able to open fully - so to me this means changing the values. I don't want 30c but I should be able to set things up to open fully.

    All my other normal rad work perfectly - from 0 to 100% with warmer days only opening to 50 or 60%.

  2. #12
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    I think I have found out what is happening. My normal rads can easily be driven to 100%. The towel rail go to 60% + and slowly increase but never to 100%.

    If, however, I link a towel rail rad and a normal rad with the thermostat then I get 100% readings.

    As I believe that the values and thermostats "Know" what is best I have now bought 2 more thermostats and accept the fact that the towel rail rads get very hot even when on 60% open.

    Now I'm about to install a boiler connect. Does anyone know if I can run this with a timer switch so that heat is NOT called for during the night ?

  3. #13
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    Quote Originally Posted by longview View Post
    Now I'm about to install a boiler connect. Does anyone know if I can run this with a timer switch so that heat is NOT called for during the night ?
    Hi Longview,

    I'm not an electrician, but I believe you CAN do this - all that the boiler connect (and other timers) does is to open or close a switch to allow power to flow into the boiler.

    Therefore, you can connect daisy-chain timers together so that when either is off, no power goes into the boiler. (Alternately you can theoretically connect them in parallel so that when either is on, the boiler is on)

    Hope that makes sense,

    Russ

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