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  1. Sid Viscous

    RF Room Stat wiring

    Electrics not my strong point, got a Siemens rf room stat to wire into this: Looks decidedly home made! Where the bloomin' heck do I start? Reciever req's permenant L & N ( the easy bit! ) LX=common, L1=switched live. All ideas welcome
  2. H

    frost stat.... and room stat wiring

    Have a Ferroli Domi compact 24b.. with the integral thermostat, and timer... i have run a wire out from pins 1 and 2 external stat... now if this wire is shorted it brings on the boiler regardles of whether the boiler is on override... what i wanted to know.. was Where the boiler is...
  3. B

    Quiet room stat

    Anyone know of a quiet wired digital room stat? I recommended a Honeywell DT90 but customer researched and reckons it's reported to be noisy when switching.
  4. J

    immersion heater stat

    Just fitted a emmersion heater stat i get the humming but also crackling in side the tank. any advice would be great thanks jpb
  5. B

    frost stat

    fitting a greenstat 34 cdi,in a garage, i'm just wondering if i should fit a frost stat as there's one here from the old boiler, or sould i disconnect and do away with it relying on the boilers integral one.what would the experience guys do.
  6. A

    replace old Honeywell T40 stat with Wireless DT92E

    Please can someone give me some advice I want to change the old fixed stat with the Honey BDR91 Relay Box so I can have wireless just not sure on connection I am using a two way multi zone system Old stat Earth Blue wire in 2 / yellow wire in 3 / Red wire in 1 New Relay Box Do i put...
  7. J

    Boiler won't switch off when cylinder stat is satisfied

    Hi I visited a customer this morning. They have just bought the house and have noticed that the boiler will not switch off when the cylinder stat is satisfied. I have checked the operation and voltage outputs of the cylinder stat, 3 port valve and time clock and all are ok. What I have noticed...
    • jaw
    • Thread
    • boiler cylinder stat
    • Replies: 4
    • Forum: Boilers
  8. D

    UFH pipe stat help

    Hi folks, I have a friend asked me to take a look at their business UFH. I found the flow temp up to 68 degC and return 50!!!! The control stat is gooshed. Can any of you help me identify it or offer an alternative? The UFH setup is a Pettinaroli 7019 - A+ & the stat identity I believe is an...
  9. T

    Rf stat

    Hi all got to put in 28 greenstar next week and the old lady is 80 odd so was wondering what the easiest to use timer room stats are, I normally fit the Honeywell cm927 so not familiar with many others. Cheers Martyn.
  10. M

    Suprima 40 wont start CH on timer but starts manually by turning stat down and up

    This is first post so here goes, CH wont start on timer in the morning but by manually turning down room stat and up again the boiler fires up and runs no problem for the duration of the timer programme. Control board in boiler is new and so is the timer and Honeywell room stat, any guidance...
  11. D

    Glo Worm 45 60 and wireless stat/controller

    I have stored gravity fed hot water system with pumped rads, is it possible to fit a wirless room stat and controller unit to this boiler ? Thanks D
  12. C

    Central Heating room stat - How much gas savings over TRV only?

    Does anyone know (or can point to a reference) of how much gas (percentage) can be expected to be saved by fitting a room stat, over a combi system with TRV on all rads only?
    • cascas
    • Thread
    • central central heating gas engineer heating room stat
    • Replies: 1
    • Forum: Central Heating Forum
  13. M

    Rf stat

    ​Can anyone recommend a reliable rf stat for combi boiler
  14. P

    RF programmable stat with manual overide on the reciever?

    Does any one know if any manufacturer makes a programmable rf stat that you can manually switch on the heating if the wireless part fails?
  15. O

    Vaillant ecotek 837 - stat?

    Hiya, I've currently got 2 CH engineers & an electrician friend of theirs who are trying to work out how to add a thermostat into the wiring for a Vaillant ecotek 837 - they say there is no information in the installation manual. The boiler is working fine, HW & CH, we just want to add a room...
  16. C

    Water won't heat up in cylinder though immersion & stat seem fine

    Hello guys, I am having problems with a cylinder in a flat that is failing to supply hot water at the taps. The top element or (top up) was renewed three years ago, yet even when both elements are turned on, the water will not heat up. Both immersion elements and both stats have tested okay...
    • Connor Williams
    • Thread
    • cylinder heat immersion stat water
    • Replies: 11
    • Forum: Bathroom Advice
  17. S

    help with wiring a wireless stat/reciever please

    I fitted a remeha avanta 28c (there new combi think its an avanta plus but not 100 percent) anyway, I fitted a mechanical timeclock which was easy enough, just goes to terinal x2 on pcb, all wires labeled so you cant get it wrong. From what I made out you needed l, n, e from fused spur to...
  18. K

    overheat stat on solar thermal

    what would be the solution if the cylinder has only one overheat stat but the job needs east west panels
  19. T

    worcester dt20 twin ch prog n room stat, question

    Got a call today, custards got no heating but they gt hw. The Roomstat unit is apparently dead no display(could have been dropped he said), batteries changed apparently still nothing. Are both these units coded together? can I just get a new thermostat unit. cheers boys
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