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motorised valve

The Motorised Submersible Canoe (MSC), nicknamed Sleeping Beauty, was built by the British Special Operations Executive (SOE) during World War II as an underwater vehicle for a single frogman to perform clandestine reconnaissance or attacks against enemy vessels.

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  1. B

    Help with old motorised valve head replacement

    Hello all,is there anyone who could help,I have a very elderly back boiler system circa 1980 with a couple mo mo satchwell motorised valves one of which sounds like it's on it's last legs.Idealy I would prefer to just replace the head unit if poss as I don't really want to have to drain the...
  2. L

    Motorised valve position help needed.

    Hi, need some help in where to fit a motorised valve that will be connected to a cylinder stat to stop the hot water from over heating. There will be no valve on the central heating so that zone will always be open its only the hot water I will be regulating. I can gain access to the pipework at...
  3. D

    3 port motorised valve wiring question.

    Good evening everyone, Question 1 I have just replaced my 3 port motorised valve head and wired it in. When looking at my chocolate block connector the orange and grey wires are in different places than the diagram on the instructions shows. As you look at the terminal block for all the wiring...
  4. D

    3 port motorised valve wiring question.

    Good evening everyone, Question 1 I have just replaced my 3 port motorised valve head and wired it in. When looking at my chocolate block connector the orange and grey wires are in different places than the diagram on the instructions shows. As you look at the terminal block for all the wiring...
  5. P

    Motorised Valve Tripping house electrics

    Hi everyone, just to say this is my first post, I'm not a professional but have had a lot of DIY experience over the years and installed a couple of systems in my time in my houses through the years. So I'm well aware when I'm out of my depth! My problem is that I'm on my third motorised valve...
  6. Stants

    Motorised Valve setting manually

    Hi I was hoping my old Central heating would go the distance as I'm in the process of a loft conversion and I am going to upgrade .. alas its packed up , the boiler still fires up but its on for a while then goes off ( this was xmas day by the way ) when I last had it going I had hot water but...
  7. L

    Danfoss HSA3 Motorised Valve

    Could anyone please offer any advice on the wiring positions for the new valve, the old valve has numerous wires so I'm now unsure of the positioning for the new, please see attached pictures, all advice appreciated
  8. C

    Advice on 3 port motorised valve? - I have an unusual wiring requirement

    Are there any 3 port motorised valves (preferable cheap) that do not require a constant mains current to flow when the value is either open or closed (ie it just needs current while actually opening or closing)? I'm trying to cobble together something for a small diesel heater to be used in a...
  9. B

    Honeywell Motorised Valve Not Fully Sealed when Closed

    When I have my hot water on and the central heating is off, there is still a small flow of hot water through the motorised valve for the central heating. There's sufficient flow to slightly warm some of the closest radiators. Does this usually mean a new motorised valve or is there something...
  10. P

    Please Identify Ancient Motorised Valve

    More heating problems. We have a very old vented, fully pumped ch system and Thorne Olympic boiler. The heating is coming on with the hot water and I suspect the motorised valve. I think it's from the same era as the boiler, and I can't see any markings on it to identify it. From the picture can...
  11. S

    Central Heating Fault, Motorised Valve?

    Bit of an issue with my central heating this past few days, it's struggling to come on and was wondering if someone here could give me an idea of what's wrong. When I turn up the temperature to trigger the heating, it often seems to fail. It's hard to say how often, because it can work fine for...
  12. A

    Boiler constantly on although programmer is off...

    Hi, I`d really appreaciate any help regarding this new problem. We have a house with a sealed central heating system and a water tank in the A/C. Turned the heating on today for an hour, worked well, then noticed that well after the hour was up and the programmer switched off, the boiler...
  13. B

    Servicing Drayton motorised valve circlips

    Does anyone know where I can buy the correct circlip for the spindle on a Drayton motoised valve?
  14. Stanios

    Remote Switch for Motorised Valve?

    Hi all, Got a customer with an unvented which the installer didnt bother to wire in the 2 port valve so its been like this for years just manually open. Problem is the valve is on the other side of the house where wiring centre is, running cable is major work. I was wondering if anyone knows...
  15. B

    Motorised valve allowing water flow even though spindle closed

    hi. I removed actuator from motorised valve. Spindle at 12 noon so valve should be closed. However hot is flowing through the valve. I can manually turn the spindle about 20 degrees. Is it possible the gland inside is not turning even though spindle is? Many thanks.
  16. J

    Sunvic motorised valve 3 port query

    I was having a few problems (rads on with only water switch down). Engineer came and fitted a new three port valve and acutator (was Danfoss, fitted Sunvic SD2701). the Sunvic has a metal lever, one side says normal use, the other end say flushing only. The metal lever can be locked on either...
  17. Chalked

    Customer swapped motorised valve. Now it won't work!

    I wonder why? Pulled back the dodgy connection..... And ..........
  18. L

    Honeywell motorised valve playing up.

    Good afternoon – I am really stuck with a diagnosis here and hope to get your help. The system has 2 Honeywell V4043H1056 motorised valves. Their outside levers are both set to “auto”. No problems at all with the Central Heating valve or the programmer (ST6400C). The issue is with the hot water...
  19. U

    Y plan motorised valve

    If a y plan system shuts down when the last function was central heating power remains on to the motorised valve and maintains the motor in a stalled condition. This means that It can remain in this state overnight . Has anyone found a solution to this situation?
  20. MZR

    danfoss motorised valve hsa3

    hi all been called to a gloworm ultimate 60ff today with a danfoss hsa3 motorised valve, the hot water works fine the heating when called for the stat says its on but the valve is not moving if i put it on manual then it all works fine but the stat wont switch it off untill the valve is moved...
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