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valve

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  1. I

    high voltage levels affecting equipment

    Has anyone had any experience with increased voltage levels caused by PV systems affecting any of the installed equipment on site? Had to reset an SB 4000TL to G83/1 on a domestic install recently as the voltage levels were to high for the G59 settings particularly on sunny days. There seem to...
  2. M

    Strange fault with Drayton programmer

    Weird one this. 3rd UP2 Programmer fitted by BG since January to replace an older version of the same type, which was a pretty basic model..(can't remember the model no). Anyway this one is a Drayton LP722 rebranded as a UP2 which should be a direct match to the existing wall plate..wired as...
  3. A

    Please Help with Wiring Diagram !I was wondering if somebody could help me with a wir

    Hi fellas, I was wondering if somebody could help me with a wiring diagram please, it is an existing system that has had underfloor heating added. The system is: Oil fired fully pumped system ie motorised valve on heating motorised valve on the dhw Addition: Underfloor heating manifold...
  4. S

    Awkward Heating System

    Can anyone give me a bit of advice on this please, On an extension the original house has a Y-plan system installed and there are two new zones for wet system ufh being installed, however the new boiler (ehc eco-save) which is a combi and feeding the DHW and CH through a 3-port valve, only has...
  5. BigSi

    2-Port valve wiring?

    Hi all. I’m currently wiring an S-Plan heating system (normally don’t get involved in this, but it’s been dumped on me). I’m using a Honeywell DT90E room stat, and a Honeywell V4043H 2-port valve. In the room stat I’ve got A as live in, and B as live out (C not used, neutral not...
  6. Top Cat

    Adding wet under floor heating to a Y plan

    Hi as i am a new guy i can't do a diagram so will have to explain. Have just done a job for a plumber adding a wet under floor heating system to a Y plan heating system. I have got a time clock operating a new 2 port Honeywell motorised valve. When the time clock is calling for heat the valve...
  7. L

    Underfloor Heating / Rads Ufh3 Heatmiser

    Good evening, my knowledge with heating isn't great, so thought ide seek some advice. At current there is a heating system (Gas boiler) which is serving heating (rads) / hot water. The plumber has said he's slightly puzzled from the system to weather its a Y or an S plan. They've had an...
  8. S

    telemecanique limit switch query

    Hi allwe have got a telemecanique limit switch on a sprinkler valve to indicate a fault situation if the main valve is to be shut for any reason. The client has now asked for the intruder alarm to be linked to this valve also in order to fulfill these requirements , both parties need a clean...
  9. D

    Central heating problem.

    calling all fellow Sparkys...this may or may not be an electrical issue, but I've noticed for the last few days the radiators in my house are all "luke warm". I've done the obvious, like bleeding them all..and yes the room stat is turned up!....but they are all consistantly a mild...
  10. C

    honeywell 4073a valve staying hot

    Hi, I have recently updated my central heating controller to a st6400c.I do not have a room thermostat.The controller works fine,central heating,hot water and /or both when asked for.The problem is when the central heating has been on the 4073a motor casing remains very hot even when the water...
  11. L

    Confused, can anyone shed some light?

    Hey, been to look at a job this evening its not your standard S, Y or Combi system. The plumbers gone in and only changed the boiler but disconnected all the cables to it. Scenario: Boiler, with pump above it, basic programmer (HW ON, CH ON) Then in the airing cupboard theirs one 2port valve...
  12. M

    Safety shut off valve for boiler??

    Hi all, had a call out friday afternoon to assist a gas engineer to a boiler not working in a bank. Job was to: - get boiler working- DONE - sleeve main Gas pipe through floor- being done tomorrow - install bonding to Gas meter- DONE - install SSOV to boiler ??? The boiler is rated...
  13. grimysparks80

    Honeywell room stat orange light always on.

    Hi guys. Tomorrow im going to a job where the orange light on the honeywell thermostat is always on faintly and comes on properly when the room stat is turned up. I have seen this loads of times and i think its getting a back feed from the 3 port valve. I have tried to explain to the customer...
  14. i=p/u

    motorised valve

    had someone today said there mortorised valve has gone 2nd time in a year.... ive never looked at 1 is this common which i doubt so any input will help me . could i just replace like for like no probs?
  15. yellowvanman

    UFH and other heating

    Got to wire up the heating system in a house later this week and its not totally straightforward: UnderFloorHeating on ground floor - 6 zones, radiators on 1st and 2nd floor, hot water cylinder and a set of towel rails, all of which need to be on different timers (4). Problem is when joining...
  16. J

    Motorised Valve on central heating

    Hi, In my central heating system the oil burner seems to be over riding the clock/timer. The following is seen: When the clock/timer is on (all 3 channels) and the thermostats in the house reach the required temperature, the motorised valves close as expected. However the oil burner does...
  17. V

    help...unknown heating system

    hi all got a job to re install an existing heating system. i have a danfloss three port valve,four wire brown,white-grey-orange-blue no tank stat room stat controler with ho****er only or ho****er and heating any ideas...ive wired a good few systems but not come across this. ta all vito
  18. A

    3 port valve to cylinderstat connections help!

    I need to connect a new cylinder stat to a 3 port valve. I have on the cylinderstat C, 1 and 2. On the 3 port I have brown blue and white wires but these are not labeled or identified and there's no instructions to refer to. How do I know I've connected the stat to the valve correctly...
  19. V

    Drayton 3 port valve wiring - Y Plan

    I have a old (1970s) Draton 3 port valve that I am trying to wire into my wiring centre on my heating. The coloured wires are as follows: yellow, black, blue, white and green/yellow. I have managed to track these down to (at the bottom of this wiki page): Yellow - CH & HW Black - Neutral Blue...
  20. V

    heating problem HELP PLEASE

    immergas victrix 26 kw boiler i wired one of these boilers today and was not sure how to bring the switched to back to activate the boiler i have done this job many times but i was told that this boiler is volt free and im not sure how to switch it if this is the case i bought two wires back...

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