cylinder

  1. M

    S plan not firing boiler for hot water

    Hello all! I'm a plumber and have a customer where the s plan is working fine for both zones (ground floor, 1st floor + cylinder) but not firing the boiler when hot water demand from the cylinder is operated. 2 port valve opens and pump runs but boiler shows no demand for heat. Any ideas why...
  2. 123

    Heating: Y-plan Cylinder Thermostat Installation And Replacement

    123 submitted a new resource: Heating: Y-plan cylinder thermostat installation and replacement - Heating: Y-plan cylinder thermostat installation and replacement Read more about this resource...
    • 123
    • Thread
    • cylinder heating installation replacement termostat thermostat
    • Replies: 0
    • Forum: UK Electrical Forum
  3. J

    Wiring thermostat

    Would the wiring on this Sunvic cylinder thermostat Sunvic SA2452 Cylinder Thermostat 3KB Pic 1 be the same as this Sunvic 4KB Pic 2
  4. T

    Combi boiler cylinder stat

    Hi all, i I have my first combi to wore up next week. I have got the drawing here for the controller and it gives me terminals for a hot water cylinde stat,The system has no cylinder in it s it's a combi so I assume that somewhere in the boiler it has a built in stat? Like I said this is my...
  5. M

    Codice cylinder stat

    Hi i need some advice on how to wire my codice 542794 stats to my boiler i have a buffer tank and like to put a stat top and bottom of cylinder ,i have a connection from my boiler for a thermostat with a switch live and perm live and neutral i need to no were they go in the stat inside stat...
  6. P

    British Gas UP2 failing to turn on Central Heating except when Hot Water is on

    OK, so I'm not a plumber but have a fairly good idea how this system works. I'm not alone with this problem either, there has been a similar post but it's old and doesn't have a resolution - though they have a temporary fix that doesn't work for me... Boiler: Baxi Solo 15HE Controller: BG UP2...
    • phatado
    • Thread
    • british british gas central central heating controller cylinder don't gas heating hot water position valve water
    • Replies: 17
    • Forum: Central Heating Systems
  7. uksparks

    Heating controls

    Hi, can anyone advise... i would like to ideally use Honeywell. i want the stats and programmer to be wireless. it needs a frost stat it also needs two stats and a programmer and it needs three channels / zones any ideas on how to achieve this?
  8. VoltzElectrical

    central heating systems help!

    I have no experience in the installation or fault finding of, central heating systems. I don't do, and have rarely done, domestic work. I volunteered recently to look at an elderly lady's situation whereby the system had been installed, then altered as the room stat was relocated from the...
  9. C

    Underfloor heating, boiler , aga and cylinder

    Just wondering if anyone has every worked on a system with all of these working together and if so what cables I will have to run ?? ( look at title )
    • CybiAnt
    • Thread
    • boiler cylinder floor heating system under underfloor underfloor heating
    • Replies: 9
    • Forum: Central Heating Systems
  10. I

    Hot water Cylinder Stat

    have noticed for a while now that the hot water cylinder stat might not be working correctly. Hot water is timed for morning and evening only however as it only comes on for a few hours i just put it down to it not heating up fully, stat is on 55c. Now this morning, i switched on the immersion...
  11. S

    Hot Water Cylinder Installation

    Hi all Just a quick question. Following the installation of a replacement hot water cylinder in a tenanted property. The tenant is demanding an Electrical Installation Certificate a Periodic Inspection Report & an entry on the Electrical Equipment Register So wanted to know if the members would...
  12. N

    Cylinder 4kw

    Was looking for some advise. Plumber has installed water tank with three 4kw elements at the moment I have ran three individual circuits. At the moment the salon is running of the boiler. I am just looking if anyone would know what 7 day time clock would be suitable for 4kw. Want the contractor...
  13. K

    Cylinder stat seems trip rcd

    Hi, My heating system is a myson apollo 30b with a 3 way valve etc. The other day wife said was a popping noise coming from kitchen where the programmer and boiler is , on investigation i have found when you turn down the tank stat which is a drayton hts 3 it when it gets below the temp and...
    • klunk1971
    • Thread
    • boiler cylinder heating rcd seems sometimes trip valve
    • Replies: 2
    • Forum: Central Heating Systems
  14. C

    Cylinder stat

    Hi guys What is the purpose of the third connection at a cylinder stat which appears to connect to the central heating pump on most wiring diagrams I have seen? The system I have is what I assume to be gravity hot water with pumped central heating . There are no motorised valves, just...
  15. robd

    Vaillant combi store cylinder stat problem

    Evening all, A job I am on as an aside the customer asked me to have a look at the heating/hot water system as the hot water is not heating up. It is an unvented system with vaillant boiler and combistore cylinder. Anyway I tested up to the tank stat/cylinder control and found power up to it...
  16. D

    worcester greenstar ri Y-Plan

    Hi all been called out to a boiler replacement with the above boiler. The problem is it wont run on heating only. have check wiring and all I can spot is that from controller there is no wire going from HW OFF to cylinder stat terminal 2 and grey on valve. Any thoughts and no spare cores in...
    • davek
    • Thread
    • boiler cylinder heating valve wiring worcester
    • Replies: 3
    • Forum: Central Heating Systems
  17. I

    Need Help Unvented cylinder with one 3 port valve.

    Hi, i have changed my hot water cylinder for a Megaflow hot water cylinder. now having problems to wire this thing in. the programmer i have (Tempus 7) has only got HTG on and DHW on options, so i it's only for 2x2 port valve system?!?! originally i have only 3 port valve at the moment, looking...
  18. J

    new solar pv set up, hot water options with combi?

    http://www.solartwin.com/wp-content/uploads/2011/08/Combi-prefeed-NONmodulating-giff.gif http://www.solartwin.com/solartwin-features/basic/plumbing-in-solar-thermal-to-a-combi-boiler-combination-boiler-geyser Hi all imhaving a 4kw solar pv system with an immersion controller(i dont have an...
  19. 9

    mega flow unvented cylinder

    Firsg time ive connected one of these System will be an s plan If uve done one, do you not thinks its a bad design with the immersion and the stat being in the same casing on the cylinder. Only reason, for safe isolation to work on one you need to isolate both.
  20. S

    Delta Sol solar thermal??

    Anyone familiar with Delta Sol solar thermal controls? Just wired a Y plan, existing cylinder was removed and replaced with a center store cylinder - not sure if the controls and cylinder are compatible Any help would be appreciated?

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