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wiring

Electrical wiring is an electrical installation of cabling and associated devices such as switches, distribution boards, sockets, and light fittings in a structure.
Wiring is subject to safety standards for design and installation. Allowable wire and cable types and sizes are specified according to the circuit operating voltage and electric current capability, with further restrictions on the environmental conditions, such as ambient temperature range, moisture levels, and exposure to sunlight and chemicals.
Associated circuit protection, control and distribution devices within a building's wiring system are subject to voltage, current and functional specification. Wiring safety codes vary by locality, country or region. The International Electrotechnical Commission (IEC) is attempting to harmonise wiring standards amongst member countries, but significant variations in design and installation requirements still exist.

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  1. 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
  2. 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...
  3. 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
  4. 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...
  5. M

    Glow Worm Ultimate3 Stat Wiring

    Hi, can anyone clarify wiring and Honeywell 927 and BDR91 to a glow work ultimate 3. The BDR91 is currently set up as a 240v feed with 4 core cable. LNE are going straight from the receiver to the boilers LNE. I then have L bridged to A in the receiver. Does B from the receiver just go to RT...
  6. 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...
    • razvan_rich
    • Thread
    • forum it500 plumbing problem pump pumps salus wiring zone zones
    • Replies: 7
    • Forum: Plumbing Zone
  7. M

    Wiring from 3rd Gen nest heat link to greenstar heatslave

    Hi, I have a worcester greenstar heatslave ii 25/32 external oil combi boiler and i am wanting to connect a nest 3rd generation and be able to control the hot water and also the central heating on the Y plan. It all looks very simple but on youtube Videos, it shows something different mainly...
  8. D

    Wiring up a it500 stat

    Im new to this so i was looking for some advice on how to wire up correctly a it500 recevier to a greenstar 30i boiler. I need to wire up for heating and water and i not sure on the correct connections. Any hep woud be appreciated... Thanks....
  9. 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
  10. 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...
  11. M

    wiring a Salus it500 to a worcester, Help needed

    I have a Worcester greenstar heatslave ii 25/32 external oil combi boiler and need to connect up to a salus HW/CH IT500 control After speaking to salus this morning regards wiring up a salus HW/CH IT500 control, They have sent me the wiring instructions. As anyone on the forum ever installed...
  12. B

    Hive wiring for system that had a CH relay

    Hi all. Got a Hive install where the HW works fine, however the CH isn't. Currently the CH seems to be switched on via this Honeywell relay that's in the airing cupboard. Anyone know how to wire this thing up? I'm guessing the relay needs to be removed, and the HW on from the Hive needs to be...
  13. A

    Changing thermostat from static to wireless( wiring issue)

    Hi all, I would be very thankful if somebody knows the connection status of my problem listed as following: I have a new Drayton Digistat +3RF programmable wireless thermostat. I wish to connect this unit to a Worcester Greenstar 30CDI combi boiler. I would like to have an explanation of how to...
  14. 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...
  15. M

    CH only works when HW on (no HW off on programmer)

    Hi - first post here Trying to resolve an issue with our system at the moment. We have a Potterton Suprima boiler with a Sunvic 207 XLS programmer. I’m only able to get CH to work when HW is active. There is no HW off wiring into the programmer which I imagine could be the issue after doing...
  16. D

    Vaillant Ecotec 630 wiring to Nest 3rd Gen

    Hi, I hope someone can answer the question or point me to an appropriate thread please. Currently the system is wired as per the S Plan from Nest and is fully operational for both Hot Water and the Central Heating, however the issue is that the boiler switches off when HW and CH demands have...
  17. A

    Wiring up bathroom fan from pull cord. Correct?

    Hi everyone, I have a bathroom fan to wire up tomorrow evening. I have had a look through the instructions but wanted to double check a few things. The fan has no timer just a neutral and live. The light pull cord has just L1 and com and earth connections so can I use this? I am fitting...
  18. G

    Vaillant VR 61 wiring center wanted.

    Anyone have one spare?
  19. R

    W plan wiring using midposition valve

    Hi is it possible to wire up to work has a W plan using a mid position valve? If so any advise? Thanks
  20. M

    Timer wiring installation

    Hi guys need help wiring up a programmer to glowworm betacom ... usually have an electrician that charges me £40 but has today let me down, have done basic wiring before before never installed stats. Will attach a few photos and beg for guidance (manufacturers either arent clear or i cant look...
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