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s plan

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  1. S

    S plan wiring diagram

    Hi, I am looking for a S plan wiring diagram, Its for my AM2 test which I am taking in may, but I have never touched central heating systems, and we don't do any in work so a diagram is the next best thing this is the only thing worrying my about my AM2, cheers.
  2. A

    worcestor bosch combi boiler and s plan system

    hi i'm doing the wiring for a s plan system with the boiler being a worcestor bosch combi, Problem is i can't see a switch live on the boiler to feed the honeywell junction box terminal 8 to the m/valves. The instructions show only a switch live which is used for a room stat which has a link...
  3. B

    S Plan with UFH

    Hi, I have wired an S Plan with a 3rd valve for UFH. The system runs with 2 pumps, one dedicated to the UFH. at present I have the boiler and both pumps wired in parralel and called from the orange wire out of the zone valves. How can I wire up to have each pump seperate as at the moment the...
  4. A

    S plan plus - underfloor heating

    Hi guys, just recently wired up an s plan plus system however, the third valve is for an underfloor heating system which has its own pump, what i want to know is how do i connect this pump into the system? My switch lines for the 3 valves (orange) are connected up to the switch line from the...
  5. U

    s plan with wood bolier

    hi can anyone help with a wiring diagram for a s plan with the bolier being a wood burner.many thanks.
  6. E

    y plan / s plan mixed

    Is there such a thing as a 2 port and 3 port valve heating sytem and can they work in unison. saw one today and it kind of baffled me
  7. S

    S PLAN Plus

    Hi Guys, Just a bit of knowledge really, I have a customer requesting a job which involves me wiring up his heating system Worcester Bosch 35 CDI Combi Boiler Worcester Bosch Greenstar (believe its a condensing boiler) 3 Honeywell Zone Valves ( Undrfloor Heating, Flow and return?) Megaflow...
  8. L

    s plan

    Doing my first complicated heating system in a few days time , only ever done combi boilers so a bit unsure about a few things. If I follow the wiring diagram just like it is will everything work okay? surely thats to easy im thinking there must be more to it. Also ive been told the boiler needs...
  9. E

    couple of questions regarding y plan and s plan heating system question

    If the cylinder isn't full of hot water and you turn a hot tap on, will boiler give you hot water or does cylinder need to fill up 1st?? daft question i know... And connected potterton boiler and read in the manual that there was no need for a permanent live if system is completely trv'd. So...
  10. I

    S Plan Plus

    I have an S Plan plus to do Worcester Bosch,2 boilers with wireless stats, does anyone have a wiring diagram and/or give me some advice?
  11. D

    From Y plan to S plan, what do you do with the cylinder stat 'satisfied' wire

    The question is pretty much in the title, if you were converting from Y plan to S plan I'm not sure what you would do with the cylinder stat satisfied wire, would you simply put a connector on the other end in case it were ever needed in the future? Thanks for any help Down2earth
  12. 1

    S plan plus (zoned) with combi? Help required

    Hi guys, I have offered to help a neighbour out by wiring up their new CH. They have the following kit: Honeywell ST9500C controller DT90e thermostats (one upstairs, one downstairs) 2off 2 port valves Worcester Bosch 25si condensing Combi They've lost the wiring diagram for the controller -...
  13. F

    AM2 and S plan and solar

    Hi, can you tell me what is required for the AM2 particularly concerning the S plan heating, also how is the solar part of it linked to the S plan part? I have a wiring diagram for the Splan connections but can't see how the solar will link. Thank you
  14. E

    honeywell s plan programmer & glow worm boiler argghhhhhh

    Can some one advise me on a problem im having with this heating system. Ive wired the programmer exactly how the instrustions said. it exactly like this diagram S-Plan the thing i dont understand is the boiler has a seperate output which is L-N-E to the pump Then L-N-E & R(switched...
  15. L

    s plan heating system with pump in boiler not out side what do i do ?????

    Iv done a few heating systems now but no where near an expert yet but im a bit stuck because all the s plan systems iv done in the past have an external pump but this system is a vaillant boiler with an internal pump. So just need to know how to alter the wiring from external pump to internal...
  16. L

    s plan heating system with pump in boiler not out side what do i do ?????

    Iv done a few heating systems now but no where near an expert yet but im a bit stuck because all the s plan systems iv done in the past have an external pump but this system is a vaillant boiler with an internal pump. So just need to know how to alter the wiring from external pump to internal...
  17. U

    s plan with wood burner.

    just been asked to install a s plan by a plumber.not a problem but a bit confused on how the boiler works .its a wood burner thats all the info i have ,the customer is going to use the domestic immersion htr in the summer to avoid the bolier being on , do i treat it as a normal boiler and supply...
  18. M

    s plan 8 zone ufh diagram?

    as part of a re wire the house is having underfloor heating, via the boiler. having spoken to the plumber he says they are going to be using a john guest 8 way mains voltage system John Guest Speedfit - The World Leader in Push-fit Fittings, Pipe and Plastic Plumbing Systems - Mains Voltage...
  19. S

    Need help with S plan with a 3rd zone for under floor heating!

    Hi i am wiring up an S plan heating system tomorrow which has a 3rd 2 port valve with separate controls for underfloor heating, does anybody know how to wire these as i am thinking i will end up with 2 switch lines at the boiler witch will back feed to either one that is not activated. Thanks
  20. J

    S Plan, 2 Houses, 2 Pumps, 2 Programmable Controllers, 1 Shared Gas Boiler

    S Plan, 2 Houses, 2 Pumps, 2 Programmable Controllers, 1 Shared Gas Boiler Is this possible? Do you just wire up the boiler as per the S-Plan Wiring Diagram, and wire the boiler switched live from both...

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