s plan

  1. R

    S Plan Help

    Hi everyone My father in law is having new Honeywell S Plan Controls fitted as the current ones are old/not working correctly. I'm starting fresh with it all from the wiring centre. The only thing which has thrown me is the boiler has an interal pump as well as the standard pump upstairs in...
  2. Y

    S plan plus UFH zone

    Hi all,I have to go look at a job, from what i understand, they have an S plan in, they have had an sunroom extension with UFH so this is to be controlled independantly of the HW/CH. the plumber has a motorised valve at the boiler for the UFH zone which is pumped to the sunroom, there he has...
  3. S

    Viessmann with s plan

    I have to wire a viessmann 100w up I have wiring the ten the boiler connections i have a L N E, in the boiler I need to remove a jumper link as I have a hard wired stat back to my ten way, do I then need a SL in this jumpers position and where should this go bk to on the 10 way. Any help would...
  4. stidge

    s plan with megaflow

    Hi all, system is as above, have a es-ctd cylinder stat with c,1,2. whats confusing me is all the schematics show this stat with y plan. ie with an extra cable from programmer hw off which links to satisfied on cyl stat !! do I need to incorporate this or just wire as normal s plan into cyl...
  5. D

    s plan with momo valves

    Heating controls not my strong point but trying to change that! I have an s plan system with momo valves and have a question with regards to the closing of the valves. To close the heating valve the white goes on its own to CH off on the programmer. To close the hot water valve the white goes to...
  6. Doomed

    s plan with back boiler

    I'm quite happy with wiring in an s plan from scratch normally, but this is the first time that I have had to incorporate a back boiler. As yet the only information I have been given is that I'm doing an s plan with back boiler - wow, thanks boss. Any clues or advice about what is different to a...
  7. P

    Underfloor heating via an s plan system

    hello Can anyone help am looking for a diagram I have an splan system with an extra valve for the u /f heating
  8. S

    s plan with combi boiler

    Wired an s plan recently and used the orange from each honeywell to send a switched live back to the boiler,after removing the link.Is this the best practise way,or should the greys and oranges of the valves be bridged across the control terminals of the boiler,as voltage free contacts?Thanks...
  9. sythai

    S plan advice please...

    Afternoon Chaps Not my favorite subject heating, after some advice please. Recently wired an S Plan system, water is boiling hot even with stat turned down to 45degrees. Back Tuesday to get my testers out and check it out. Faulty cyclinder stat maybe? Or is it possible to wire the stat the...
  10. C

    help with central heating s plan plus newbie

    Hi there, I'm currently in my 4th year, been given a job which includes wiring up the heating. Don't have any real experience in this area soo help would be much appreciated. 2 combi boilers feeding 2 seperate heating zones with rads, a underfloor heating zone and a hot water circuit which is a...
  11. E

    S plan system with 2x under floor heating zones

    Good evening all, I'm first fixing property and customer is having splan system with one rad heating zone, hot water and an additional 2x under floor heating zones. I've taken a thermostat to 3 different zones. What I'm not sure of is how many cores will I need at the programmer? The under...
  12. G

    s plan, now want UFH downstaris?

    HI all, got a property with an s plan, now she wants UFH down stairs cant get a cable down there, i can wire the valve on the system as he has put it next to boiler upstairs and can control it via wireless stat, but there will be a pump on the manafold, wondering if there was a way to do it...
  13. E

    Frost stat to s plan heating system

    Evening all, How do you wire frost stat to splan heating system? Is there a sensor that needs to be attached to pipe work? Thankss
  14. J

    new vaillant ecotec pro 630 on s plan system.

    Hi, thanks in advance for any help with this issue. I am a plumber by trade but i am competent with most central heating wiring. I need an expert's advice. I have installed a vaillant ecotec pro 630 system boiler on an S paln system. The new vaillant boiler has a different pcb to the older type...
  15. F

    s plan central heating 3 zone valves

    help!! I am working with a made plumber, he has installed a S PLAN SYSTEM, but with a diverter valve ( witch is a two port eebszone valve ) near the cylinder. so in total there are 3 zone valves apparently this gets wired to the cylinder stat??? cant find any wiring diagrams to follow, they all...
  16. V

    3 zone S plan plus with UFH problem

    Hello. I have wired an S plan plus system. 1 zone for DHW, 1 zone for CH and 1 zone for UFH (underfloor heating). 3 channel programmer, 3 motorised valves, cylinder stat, room stat for UFH, no stat for CH & 2 pumps. Honeywell motorised valves, Horstmann 3 channel programmer, Grundfos pumps...
  17. B

    S plan variation

    Hi guys I was asked to have a look at a central heating fault on what appears to be a S plan system. Plumber had already had a look and told them that it was an electrical fault. Gas boiler, immersion, 2 zone valves, honeywell wireless room thermostat, ST9400C Honeywell controller. They say...
  18. R

    How does a s plan central heating work with Thermal Solar

    Could somebody please explain to me how an s plan central heating with thermal solar suitable energy system work please?
  19. O

    S Plan Assumed Knowledge - Need General Info

    Hi All. Am about to enter into the world of S Plan heating systems and need some general knowledge as I have none when it comes to plumbing. The system comprises of the following: It is a Danfoss S Plan With 2 * 2 Port Zone Valves With Programmable Heating & Hot Water Thermostats 1 Worcester...
  20. 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.

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