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Discuss New wireless programmer in the Central Heating Forum area at UKPlumbersForums.co.uk.

  1. Mash

    Mash New Member

    Bought a Honeywell CMT927 yesterday and it arrived this morning, so will be fitting it in the next day or so.

    106.99 including the dreaded, free delivery, can't be bad. Got it from The tinternet

    Hopefully it will be a lot better than the existing Iflow(Drayton) that's currently there which is rubbish
    Last edited by a moderator: Dec 29, 2016
  2. Riley

    Riley Plumber GSR

    A bit of shameless advertising ??
    • Like Like x 1
  3. Rickster123

    Rickster123 Guest

    Edited for obvious reasons.
  4. Leo21

    Leo21 Trusted Plumber GSR

    They're ok, only ad a few fail. Just remember to set your off times as low temperatures.
  5. Mash

    Mash New Member

    Not entirely sure what this means mucker? But, if it means I'm advertising, then no, not guilty. I just posted here to see what you guys thought as I'm just an amatuer trying to get my heating working properly, an in a couple of instances recently, at all.

    With regards to that, I really appreciate all the helpful comments I've had on this and previous posts, thanks guys :smiley2:
    • Like Like x 1
  6. Riley

    Riley Plumber GSR

    we get a bit antsy about it as we have a very good forum sponsor Who also happens to be a merchant as I'm sure you can appreciate we like to put our business his way
  7. Mash

    Mash New Member

    Fair one Mate.

    As it happens, I've just been looking at te instructions for the stat and the boiler, and I'm confused again :confused5:

    It' a grant combi, vortex pro 21e and looking at the 927 wiring, not sure what to connect where.

    It has a Drayton wired in at present with CH and DHW switches set to constant, and I presume I wire the 927 as if it were CH burner only?
  8. Leo21

    Leo21 Trusted Plumber GSR

    Isn't a cm927 a single channel programmer? You'll have to wire it from the clock central heating common. How's you electrical competency?
    • Like Like x 1
  9. Riley

    Riley Plumber GSR

    • Like Like x 1
  10. Mash

    Mash New Member

    Yes it's single channel :( Didn't think about that when I bought it. Plumber who fitted it all did everything on the cheap(all done as part of a house extension so he was presumably on a price), so he set DHW to constant with no clock and just a stat to turn heating on and off by temperature settings. We weren't happy with the way the Drayton was working, so I decided to replace it, and have only just realised that I should have got a dual channel :(

    He also fitted a magnetic de-scaler which obviously doesn't work so it looks like I'm going to be getting a proper water softner fitted as soon as my new plumber can get here. Unfortunately he's flat out until the end of Jan :(
  11. SteveWannadoGas

    SteveWannadoGas Member

    As fa ras Im aware no magnetic/electronic scale reducers work. But happy to be proved wrong.
    • Like Like x 2
  12. Riley

    Riley Plumber GSR

    Most boiler manufacturers require them to meet install requirements
  13. Leo21

    Leo21 Trusted Plumber GSR

    Scale reducers or Magna clean type filters?
  14. SteveWannadoGas

    SteveWannadoGas Member

    I`m not sure all boilers are ok with water softeners. Might be worth checking with the manufacturer? Is there a risk of the salt-softened water causing corrosion?
    Last edited: Jan 10, 2017
  15. chris watkins

    chris watkins Plumber

    Mash, if I was you I would ask this new plumber to explain to you the requirements of Part L1 of the Building Regulations and how this should be met, regarding the requirements for time (as well as temperature control) on both the domestic hot water as well as the heating.

    Another case of "diy'er saving money" only to find out it has cost them more.
    Last edited: Jan 10, 2017
  16. Mash

    Mash New Member

    Thanks Chris, will do. Advice appreciated. It's just a shame the original guy didn't think about all that when he installed it (on the cheap I suspect).

    As for me doing a DIY to save money, I've actually spent nearly £1k on the boiler over the last year through getting a very well known and reputable plumber in to do the work. Unfortunately he was neither a Grant fan, or very knowledgeable, hence me doing some work on it in the interim just to keep it going whilst I found someone who knew Grants. As soon as he can get here, I hope to get it properly sorted, and legally as well.

    More a case of DIY'er trying to keep the system going in desperation :(