central heating

  1. R

    New Zone on central heating.

    I have just fitted a new Zone on the central heating and need to wire it up. The new Zone will be controlled by a Carel S90 digital thermostat. Where the Zone valves have been fitted, the timer/thermostat cable runs past, so I've cut into the cable and it has 2 lives, earth and neutral. Because...
    • Rampage
    • Thread
    • cable central central heating electricians' talk heating junction new power thermostat zone
    • Replies: 2
    • Forum: Central Heating Systems
  2. O

    Central Heating wiring mess - help please

    All, Just been to see a chap who let a "friend" look at his boiler controls. The actual controller is a very old Drayton Tempus Seven Its now not working!! and you'll see from the picture that its a bit of a muddle and most of the wires are white. There are 5 cables entering this box so is...
    • Octopus
    • Thread
    • boiler cables central central heating electricians' talk heating help help please please white wires wiring
    • Replies: 4
    • Forum: Central Heating Systems
  3. 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...
    • jonnystewart
    • Thread
    • central central heating clock electricians' talk heating timer valve
    • Replies: 2
    • Forum: Central Heating Systems
  4. N

    Central Heating query

    Hi, I've was called to look at a heating system that the plumber believes has a wiring fault. Everything works electrically and looking at the diagrams is all connected as per ..... however when the cylinder stat reaches temperature, the system stops pumping round the radiators. If you turn up...
    • NG1965
    • Thread
    • aus central central heating diagrams electricians' talk heating query system wires wiring
    • Replies: 2
    • Forum: Australia
  5. S

    Bit of help needed testing of central heating system

    Hi guys im normally ok with testing but not too sure when it comes to central heating systems. When testing water heater do i disconnect heater element first before doing i-r test ? And when testing r1=r2 do i have to test all valves and pump ? Also as there is electronic control on oil boiler...
  6. S

    Help needed with Central Heating Wiring

    Hi Need some help with rewiring part of the central heating system in my house. I am not a qualified electrician, but I wish to carry out as much of the work myself to save a few pounds and then get a qualified electrician to check and carry out the final connection at the fuse box. The person...
    • shazz316
    • Thread
    • central central heating electrician electricians' talk heating help house needed timeclock wiring
    • Replies: 1
    • Forum: Central Heating Systems
  7. B

    central heating fed from spur

    bit of advice please guys. when doing a pir or cu change do you test the central heating wiring which is fed from a fcu off a ring or radial circuit. thanks neil.
  8. S

    Central Heating courses

    Can anyone recommend a good central heating course ideally covering s and y plan, underfloor heating systems and maybe ground source??? By the way, has anyone done the NIC PV course? The lad I work for has just done it and said it was a total waste of time and money with roofers and kitchen...
    • Sid
    • Thread
    • anyone central central heating course courses electricians' talk heating systems
    • Replies: 1
    • Forum: Central Heating Systems
  9. A

    Bonding central heating pipes

    Cross bonding central heating pipes, good practice to wire in 4mm2 ? any thoughts...
  10. B

    Central Heating Controls

    Hi, Does the wiring runs and wiring up of central heating controls come under BS7671. Would a cert be required for this type of work. Thanks in advance
    • Buzzman
    • Thread
    • central central heating controls electricians' talk heating heating controls under wiring
    • Replies: 2
    • Forum: Central Heating Systems
  11. D

    Domestic central heating need help.

    Hi im new to this board so sorry if this is in the wrong place. Currently there is work going on in my house and the boiler is moving from one room to another along with time clock and thermostat. Now there was a 3 core from time clock and a 3 core from stat going to boiler spur with 5 core flex...
    • david_s
    • Thread
    • aus central central heating domestic electricians' talk heating help need help
    • Replies: 3
    • Forum: Domestic Electrician Forum
  12. L

    Electric Underfloor Heating Vs Water Pipe Underfloor Vs Central Heating

    hi guys In two minds about underfloor heating, am wondering what the advantages and disadvantes are with these types of heating. I´ve installed a few electric underfloor heating systems but only on a small scale. Never come across the water pipe underfloor heating, what do you guys think is...
  13. S

    Central heating price work

    Hi all Just wondering what kind of rates you guys would expect if doing price work on installing central hearing systems. Bonding has to be upgraded if not there and all main earths 16mm regardless of supply due to the contract. Combi, y and s plan prices please. Also please add for the need...
    • slocm3105
    • Thread
    • central central heating electrical work electricians' talk heating price price work work
    • Replies: 12
    • Forum: Business Related
  14. B

    help central heating programmer

    Been called to a job where the client tried to change a central heating programmer. He took the wires out the backplate and forgot to note down where they went! Monkey! So I have the brown and blue from spur which go to L and N of the back plate but then I also have a brown and blue from...
    • brizospark
    • Thread
    • boiler brown central central heating combi electricians' talk heating help programmer
    • Replies: 15
    • Forum: Central Heating Systems
  15. I

    central heating pipe over capped cables

    common sense tells me that over time a hot central heating pipe over my capping for socket is bad news,an is there a minimum distance a socket should be from radiator?i av put my points were builder asked then plumber has come along an done this ready to be plastered over.way i see it 1st in...
    • ian1511
    • Thread
    • aus cables central central heating cooker electricians' talk fitted heating pipe pipes socket
    • Replies: 16
    • Forum: Australia
  16. S

    My first central heating job

    My first ever central heating job. Simple combi replacement. Timeclock and receiver wired in for wireless stat. Happy days.
  17. D

    Wireless control of Valves in a Y Plan Central Heating system

    Does anyone know if any companies do wireless control of the valves in a Y plan system? I have looked at the Honeywell solution using ST9420C as the controller but this is WIRED. The room stats (DT92E) are wireless to the controller though which is a start. What I ideally want is a system...
    • dos1001
    • Thread
    • boiler central central heating control controller cylinder electricians' talk heating plan system valves water wireless y plan
    • Replies: 5
    • Forum: Central Heating Systems
  18. S

    Help !! Wiring Underfloor Heating With Central Heating

    This is my first attempt at wiring underfloor heating and i need URGENT advice if possible. The attached diagram is how wired. 2 zone valves, first for central heating with its own stat, second for UFH with three actuators. Actuator 1 is for bathroom with one stat and actuators 2 and 3 are...
  19. S

    Central heating problem

    Seen this somewhere before. Guy calls me to say in the last 3 weeks his street has had a few power cuts. Since then his central heating system which controls both the boiler and the hot water has had the following problem. He can turn both heating and hot water on separately. But when he...
    • SimpleSimon
    • Thread
    • aus central central heating electricians' talk heating problem somewhere these together water
    • Replies: 4
    • Forum: Australia
  20. S

    Central heating thermostat wiring

    Hi guys, I am currently on level 3 2330 at night school, and have decided I want to move my stat for my central heating as it is upstairs and I want it downstairs. My question is: the stat is wired in 3core and earth not sure whether 1 or 1.5mm - if I want to extend the cable do I need 1 or...
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