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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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Recent contents Top users
  1. kris

    Danfoss Randall Set2 wiring

    Hi there, I've a Danfoss Randal set2 to replace next week, I'm simply looking to obtain the installation manual for the old timeclock, I haven't attended the job yet I've only had a picture sent from the Tennant so I've not checked the wiring, so today I scoured the Internet to try and...
  2. D

    Single Zone UFH addition to main system wiring

    Advice needed please: I have an UFH installation as part of my main CH system. The UFH will never be required in isolation to HW or main CH, therefore keen to wire it completely independently of boiler and main wiring. All I want to achieve is the following: A new Room stat (in the location...
    • DIYTony
    • Thread
    • forum main plumbing single system ufh wiring zone
    • Replies: 0
    • Forum: Plumbing Zone
  3. H

    Advice on a JG UH3 Wiring Zone and how to stop the UF pump running when the HW timer kicks in

    Hi all. First post. I have a JG UH3 wiring zone and I've noticed that the UFH pump always comes on when the HW 'circuit/thermo' is triggered. Hence - rather than just heat the water in the tank - I also heat the UF circuits. I can't see a way to avoid this - it may be the way the circuits...
    • hantsgaz
    • Thread
    • advice forum plumbing pump running timer wiring zone
    • Replies: 27
    • Forum: Plumbing Zone
  4. IanHoll

    External Controller Wiring

    I recently had a Worcestershire Bosch 8000 Lifestyle installed but they also installed the inferior ESI control panel and wireless thermostat. I've just purchased Worcestershire Bosch's CT-200 EasyControl with the RF key. The app is paired with both the RF key and the thermostat and I can see...
  5. D

    Thermostat change wiring

    Hello I'm wanting to replace an old danfoss thermostat with a newer RTSI the danfoss has a live wire link to com. Can I just take that out with the new thermostat? See pics. First two pics are the old danfoss last pic is the new Drayton.
    • Donhel
    • Thread
    • america change thermostat usa wiring
    • Replies: 2
    • Forum: USA
  6. R

    3 wires from cylinder stat to programmer wiring help with pics

    Hi Just had a new boiler system and smart programmer fitted (salus IT500) Plumber wasn't to sure if the stat was wired correctly as he wasn't clued up on smart programmers . Everything works fine on the new system apart from when it calls for heat it don't like it and I have to put it on...
    • Roosie
    • Thread
    • america cylinder help programmer usa wires wiring
    • Replies: 5
    • Forum: USA
  7. H

    wiring

    Replacing an Ideal Mexico on a Y plan, fitting a Vaillant pure 425 with VRT 350f. normally have someone else do the wiring but can't attend. Does anyone have any experience having wired up something similar and have diagram please?
  8. P

    Hive wiring advice.

    I recently purchased a hive active heating. I currently have a Honeywell cm900 thermostat wired to my Worcester boiler. I'm just looking for advice as to how to wire the hive receiver which has the live, neutral, earth and 1,2,3,4. Please see pic of the Honeywell receiver. Just to add, there is...
  9. C

    UFH wiring

    Hi guys can someone explain to me how the wiring of UFH with the use of actuators is wired into an S plan please? its a 3 zone valve set up, Rads upstairs, HW, UFH downstairs. I'm okay with s plan wiring on a simple 2 channel etc but first time doing UFH with actuators and separate room stats. I...
    • Chester
    • Thread
    • america ufh usa wiring
    • Replies: 11
    • Forum: USA
  10. M

    Wiring open therm stat

    When wiring in an open therm stat. Swapping a boiler and swapping the wired stat on the wall, Honeywell one. For an open therm one. I know you take two wires I believe from the supply to the boiler to the open therm connections in the boiler. Ideal instinct. Am I right in saying open therm is...
    • Matt0029
    • Thread
    • america usa wiring
    • Replies: 20
    • Forum: USA
  11. M

    Programmer/Thermostat wiring CH problem?

    Hi Guys, Hoping someone can help me, we have a 2-zone heating system that consists of 3 honeywell 2-port valves on a system/hot water tank gas boiler. Recently the HW motorised valve broke - so I replaced it (motor/housing only) and problem solved. However when diagnosing this, I also noticed...
    • marmadiy
    • Thread
    • america problem usa wiring
    • Replies: 4
    • Forum: USA
  12. M

    little wiring help 🙏❤

    pricing up a heat only swap here just want to know what's involved. Baxi solo2 customer wants the main compact (no pump over run I believe). Haven't looked for the compact wiring diagram yet but is this going to be straight forward for me? Thanks in advance 🙏
  13. F

    Boiler Wiring

    Afetrnoon, I have had a new boiler fitted and the plumber didn't connect up the controller, the boiler only works by the on - off switch. I an an electrician but don't normally deal with central heating and need some advice on how to connect up the controller. The boiler only has a L and N...
  14. S

    Best way of wiring underfloor heating?

    Good afternoon. We have just finished our single storey extension and due to costs, I have done quite a lot of the work myself (GRP roof, kitchen fitting, joinery etc) I also laid all of our underfloor heating pipes and connected to the UFH manifold having spent hours researching both online...
    • sbracken88
    • Thread
    • america central heating system heating ufh help underfloor underfloor heating usa wiring
    • Replies: 6
    • Forum: USA
  15. J

    Wiring for ufh zone Worcester greenstar heatslave 18 25

    Hi, first im gas safe registered so know a bit about wiring but my own boiler is giving me a head ache. Worcester greenstar heatslave 18 25 oil i fitted a nest just linked ch from boiler demand to programmer demand all good. I now want to wire in another stat for my ufh but dont know what to use...
    • jakeh83
    • Thread
    • forum greenstar heatslave plumbing ufh wiring worcester zone
    • Replies: 3
    • Forum: Plumbing Zone
  16. A

    Wiring help needed TADO dual zone to one

    Hi I’ve replaced a dual zone system with one TADO system, pictures attached. The old system had two controllers with two valves which I’m replacing with one system that operates both valves simultaneously. picture of wiring attached (the TADO controller goes over the top) The thermostat...
    • Aaronbrett
    • Thread
    • dual dual zone forum help help needed needed plumbing tado wiring zone
    • Replies: 2
    • Forum: Plumbing Zone
  17. Reddwarf4ever

    Honeywell V4073A 3 Port Motorised Valve Wiring question

    Hi i checked the wiring colours are the same from the junction box to the current 3 port valve, as the new one. But although I could turn off the house mains, I would prefer not to, is it easy to tell if the wires are live, using a multimeter, ? Have an isolation switch, but not 100% sure if...
    • Reddwarf4ever
    • Thread
    • 3 port america honeywell motorised motorised valve question usa valve wiring
    • Replies: 10
    • Forum: USA
  18. Spike47

    Wiring 3 Port valve Wiring Station

    Hi Can anyone have a look at a picture of a Wiring Station for a 3 port mid way Valve, against a drawing that I have tried to do, wanting know if the black wire going into 8 could be the feed to the Boiler ! . cheers Spike
    • Spike47
    • Thread
    • 3 port 3 port valve america station usa valve wiring
    • Replies: 6
    • Forum: USA
  19. Spike47

    HELP Conundrum Midway Actuator wiring problem

    Hi I have just changed a Siemens 3 port midway Actuator, now I only changed like for like at the Main terminal box, but when I switched the system on only the hot water is working, turn tank stat down and wind up the room stat nothing. After fitting the same for same actuator, I noticed a bit...
    • Spike47
    • Thread
    • actuator america conundrum help problem usa wiring
    • Replies: 0
    • Forum: USA
  20. eagleeye

    Which UFH wiring centre is this

    Just put a new boiler in a property that only has UFH and old boiler switch live came from the UFH wiring Centre which is 230 volt. Problem is now that the new boiler sw/l is only low voltage so cant use the same cable. I'm trying to find out what make of unit this is so I can get some info on...
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