central heating

  1. P

    book on central heating

    anyone recommend me a good simple book, or a book with a chapter or two, or even online resource that goes into how different central heating systems work and how to diagnose faults. The 2330 never mentioned them :( Cheers
  2. D

    Anyone know how to Clea your Central Heating ?

    I was thinking of purchasing one of these 5ltr bottles of central heating cleaner but how on earth do I put it in the system without making a mess? Sentinal X400...
  3. A

    Central Heating Schematics

    Hope the attached diagrams are useful. AIM
  4. R

    Central Heating Issue - Wiring.

    Hi, Need some advice, I've got a Vaillant combi boiler with a programmable timer (Danfoss) and a seperate stat in the hallway (Danfoss). The radiators all get hot to whatever temperature the boiler is set at - even when the programmable timer is off and the stat set to zero... I'm sure...
  5. M

    urgent helpplezzzzz central heating mix up

    its a gravity pumped system. i have a seimens rwb2e timer and iv mixed the wires. from the fcu there are two twe wires on the load side. on the timer there is L N 1 2 3 4 SO ON CABLE ONE THE LINE WIRE GOES TO L BUT THE BLACK WIRE ON THAT CABLE DONT GO TO THE NEUTRAL IT GOES TO NUMBER 2 R 3...
  6. C

    What Central heating system is this?

    Ok , I've got underfloor heating with 4 zones, one programmable timer, gas boiler Vailliant Ecotech, Megaflow cylinder in loft, 4 (I think) thermostats and a pump. Which central heating plan is this please?
  7. sythai

    central heating controls....

    Hello there.... Hope someone can advise me correctly here. Have got to do the control wiring for an 's' plan.... havent done any heating systems for years. Just wondering what regs are regarding the following.... Megaflow and programmer are going to be up on first floor, boiler is down on...
  8. U

    help connecting up a s plan central heating.

    hello just doing my first s plan not much experience in central heating controls.the system is a vailiant boiler, vailiant cylinder. 2 x 2 port zone valves, a danfoss 2 channel programmer,and a danfoss electronic room stat. i have just 1st fixed and 2nd fix monday morning.happy with the...
  9. R

    Central heating - vaillant system boiler

    A plumber friend of mine has asked for some help wiring up a Vaillant Ecotec system boiler in an S plan configuration. I am familiar with S plan but can’t work out how to do it with this boiler, and the Vaillant manual whilst very good on the gas side is a bit lacking electrically… The boiler...
  10. E

    Central heating controls in bathroom airing cupboards.

    It used to be common for central heating controllers and switches to be placed in airing cupboards within bathrooms. I this permissible under current regs? In years gone by there was often a three pin socket as well.
  11. B

    looking for central heating diagrams

    hi guys lookin for any help, advice or diagrams for wet systems thanks
  12. S

    Central Heating Controller/thermostat

    I was just wandering if anybody can help me. The controller to the combi has gone missing during a refurb all that is left is a 4c cable and the backplate. My question is that all the central heating controllers you see eg:siemens, honeywell ect will these be suitable or do i need to get a...
  13. K

    Central heating systems

    HI guys, i will be quite honest im not that good on wiring central heating systems proberly as i have done very little with it. went to a job today where there was a problem, when you switch the water on the heating comes on aswell, even though there are seperate switches on the controller for...
  14. P

    central heating override

    Got a customer who wants to lock his vaillant eco tec boiler controls up and over ride the central heating with a remote 60minute manual reset timer. He says that tenants just put it on constant and leave it on - then they open windows when it all gets too hot. Anyone got an idea across which...
  15. M

    central heating control panel

    Hi, how much would you guys charge to change a central heating control panel from the old clockwork timer one to a digital one?
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