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wiring

Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws

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  1. townfanjon

    Unvented wiring .

    Strange request for Easter Sunday lol , its just in my head . have any of you fine chaps got a wiring diagram for a y-plan with a new 2 port wired in for an upcoming unvented installation. I usually change them to an s-plan but the boiler is miles away from the cylinder and would cause a load...
  2. Best

    S plan probable wiring fault?

    I replaced a programmer on an S plan system in a small bungalow and when checking zone valves operation, I discovered an existing problem. There is the usual 2 port MV for radiators, (controlled with hall stat), plus a second 2 port MV for hot cylinder, (controlled with cylinder stat)...
  3. J

    salus wiring diadram help

    Hi I know there is similar questions to Salus wiring on the forums, but I didnt see anything related to mine , My apologies if Im wrong , I bought a new Salus receiver and battery thermostat to replace an older Salus one . I did like for like on the wiring as in attached pics, but...
  4. Scott_D

    Wiring diagram combi

    would anyone have a wiring diagram for a combi with 2 heating zones? Been asked to fit 2x nests Maybe out if my league but wanted to do some research
  5. P

    Salus IT-500 wiring help

    Hi pretty new to this forum so bare with me. I've fitted these before but only on combi boilers and now I need to fit one on a separate hot water and heating system. It's the salus it-500 and I have attached my wiring scheme. Just need to know which one goes where on the salus it500 if you are...
  6. 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...
  7. spanner

    Three port wiring question

    Hi guys. Hoping for a quick Three port answer. When wired to programmer tined switch?,is this the common wire to cylinder stat??. As what I'm trying to retrieve is when the water is used and goes below set temperatures to fire up boiler. Just trying to get heads up about the wiring again. This...
  8. M

    Vaillant ecoTEC settings for use with vSmart and VR66 wiring centre?

    We have a new Vaillant ecoTEC 624 boiler (installed in November), operating as a system boiler. It wasn't getting on well with our Honeywell thermostat, so we decided to get the vSmart thermostat and VR66 wiring control centre, which should work better with it. One thing that seems to be...
  9. MikeJhn

    Horstmann Wiring Guide App

    Anyone been able to download the above, I can't seem to find it.
  10. M

    help with wiring up new boiler

    hi I have just replaced a potterton promax he and cant get my head around the wiring to replace it. 5 cables in as marked on the original boiler are SL E N and 2 PFs but where was it getting the 240 from? And also why is there just 2 pump feeds going into same connector and nothing returning...
  11. J

    Nest wiring question

    If this is going into an existing system with a programmer and room stat is it just a case of wiring the nest stat into the old room stat and the heat link into the old programmer wires? Cheers
  12. J

    Replacement Wireless Thermostat Wiring

    I am replacing my old RF thermostat (Tower RF-205) with a Heatmiser RF-Switch but just wanted confirmation on the wiring. The old thermostat has 4 terminals. Live and Neutral I'm happy with but for some reason they have labelled the other two Out 1 and Out 2. The new receiver has a ton of...
  13. M

    Basic Thermostat Wiring Help

    Hi everyone I hope you all had a good Christmas and New year. I really good do with some help in wiring a TR1 2 wire thermostat to my trusty old Danfoss 103 heating timer. All I need to know is which connections from the timer to the thermostat do I need to wire together? So I can use both the...
  14. A

    Wireless thermostat Wiring live and neutral from boiler terminal

    I am a gsr and just wanted clarification as to why its not recommended to just use a 5 core cable connecting live, neutral, com and nc from combi boiler terminal box rather then feeding another cable from spur socket just for live and neutral for reciver box. Any advise
  15. S

    Wall Thermostat wiring. HELP...

    Hi, I’m new here and would appreciate any help and advise. I have a Towerstat Rs wall thermostat. See pics below. I have bought a new tower thermostat but the wiring looks different. I tried to wire it but it blew a fuse. Could anyone tell me which colour wires need to go into slot 1 2 and 3...
  16. M

    sunpro 2000 wiring diagram help

    im going to replace a honeywell ST772 programmer with a sunvic sunpro 2000 but cant find a wiring diagram that shows connections from it to a wiring center only a very simple diagram of the back of the programmer can anyone help please Thanks
  17. L

    Wiring for Valliant combi with nest and ufg

    Hi everyone, I had put in a Valliant combi with nest thermostat for the house with rads and all working and ok. The client has just added a zonal ufh circuit. To the kitchen area. Is there somewhere I can check with regards to wiring this all up? I have put 2no zone valves in for each...
  18. R

    Wiring problem 2 zones pumps + salus it500

    Hello! Please help me! I have a thermostat salus IT 500 and it300, Ariston Genus One 35kw and 2 pumps for 2 heating zones. What I want: to independent control each zone, floor no1 and no2, with the pumps. When the temperature that I seted up reaches, the thermostat to command a pump to close the...
  19. O

    Nest wiring..........

    Hi lads, I just wanted to find out How you guys connect a jest 3rd gen. To Vaillant ecotec plus 825? I usually install the Vsmart only but in case a customer would like to use the nest I wanted to be prepared how to connect it with a 3 core wire. Kind regards, Ron
  20. M

    2 way port valve wiring help please.

    My Altech 010 seized (motor & valve), so I ordered another off eBay. After it arrived, I removed my duff one, and when I opened the new box it was actually a Salus! Not the end of the world I thought, so I swapped over the valves, but now I'm connecting the wiring, there's one white wire left...

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