thermostat wiring

  1. Dashy999

    Nest E compatible?

    Hi, Wondering if some kind person on here happens to know whether my Honeywell cm907 thermostat can be swapped out for a Nest E thermostat? Currently I have the honeywell connected to my gas combi boiler and the thermostat controls the heating alone. The screen on the honeywell has failed (a...
  2. Branflake98

    Nest Thermostat E Installation

    Hi, I plan on installing a Nest Thermostat E with Heat Link to my property however can’t seem to match up the wiring on the apps instructions. The property was built last year and has air source heating installed, I have, in the cupboard some sort of tank with a Daikin control panel. I have...
  3. Neil T

    Boiler Thermostat

    I’m looking to change a Honeywell T45 to a Honeywell T6R HW. Y plan system boiler with existing thermostat in the hallway and control box next to the boiler. Can anyone tell me which wires go where and which ones will become obsolete when I take out the old rotating thermostat from the hallway...
  4. Neil T

    Honeywell t6r hw

    I’m looking to change a Honeywell T45 to a Honeywell T6R HW. Y plan system boiler with existing thermostat in the hallway and control box next to the boiler. Can anyone tell me which wires go where and which ones will become obsolete when I take out the old rotating thermostat from the hallway...
  5. D

    Smart thermostat wiring advice

    Hi, Im looking to purchase a smart programmable thermostat to replace an old Honeywell T6360B, which as you can see from the pics no longer has any print left for temperature setting (was like that when we moved in!) and is pretty hit and miss clicking on and off! 20200129_224658 by DeanJenx...
  6. H

    Replacing Honeywell cm921 with Hive

    Looking for some help / guidance to replace our existing Honeywell cm921 thermostat with a Hive. I've removed the faceplate and there is a red wire connected to A a yellow wire connected to B and a blue wire going to one end of a terminal. I can also see a green/yellow wire behind this not...
  7. E

    Digistat +3 thermostat no screen

    Hi I’ll do my best to explain the issue but I’m far from knowledgeable and hope someone may be able to help with this (y) I have a digistat + 3 thermostat in a static caravan the screen has gone off, meaning I can’t control the heating Having looked on google, a few people have suggested...
  8. S

    Independent c24 to a new wireless thermistat

    Hi all, Firstly i want to thank you all for reading this, I'm pretty stuck so any help would be amazing. I currently have an Independent c24 combi boiler. This boiler has never had a thermostat fitted so had the original red cable connection, the boiler has only ever had the timer switch...
  9. N

    Replace Digital Thermostat Timer With Analogue Timer

    Hi, I wondered if you can replace a digital thermostat timer with a old style analogue timer? I ask as my wireless one is not very great and i would like to set more times and temperatures per day than my thermostat will allow me. I used to have a analogue one years ago and was happy enough. My...
  10. N

    Hive Active Heating with separate hot tank

    Good evening to all, Need a bit of help on installing a Hive Active Heating Thermostat, or to be more precise fixing a very sloppy work by a "cowboy" electrician at a friends house. So here we go. System comprises of: (1) Trianco Aztec Boiler (2) Separate hot immersion heating water tank (3)...
  11. V

    Vaillant Ecotec Pro 28 & Drayton Wiser thermostat kit 1

    Hi All, I would like to replace a Honeywell room thermostat with a Drayton Wiser (I'll also be replacing the radiator valves later). Can I just confirm that: N & L stay the same 2nd L to A loop in the Honeywell should now be L to 1 in the Drayton 2 in the Drayton stays empty B in the Honeywell...
  12. T

    Installation of a new thermostat

    Hi wondered if anyone can help can i connect a Floureon byc17.gh3 thermostat to glow worm ultracom 30cxi the old thermo was honeywell not sure what module I've added photos if that helps
  13. C

    Replacing rf thermostat with nest gen 3 thermostat

    So I decided to swap my old Salus RT500RF thermostat with a new Nest gen 3 thermostat. I thought it would be case of swapping the boxes over but I’m not sure the wiring is correct or if I’ve got the wiring correct. The boiler it’s connected to is a Vokera by Riello easy heat plus 29 c The old...
  14. B

    Honeywell to Nest - Another Thread...

    Please don't shout. I have read, searched etc but nobody appears to have the same Honeywell as me! Currently got a wireless Honeywell now, so took a look at the box on the wall (coming from boiler) and only seems to have a couple of cables, yet the nest seems to have a fair few sockets and...
  15. I

    3 wire room thermostat to 2 wire

    Hi I want to replace a 3 wire Sunvic/Honeywell TX2259 thermostat with a 2 wire Neomitis RT0. I've read a number of posts which look like they explain the wiring requirements but I just wanted to make sure. The current 3 wires are Brown=Live (connection 3), Blue=Neutral (connection 4), and...
  16. A

    Another Hive thread! Connecting to a Greenstar 30si combi.

    Another hive thread! Hi all wanting to replace my current digital timer/thermostat with a hive V2. I have a Worcester Bosch Green Star 30si Combi boiler. My current setup is as shown in the attached image. The thermostat is in my landing and boiler is in the garage. The boiler connects to a...
  17. D

    Danfoss RMT230 Thermostat

    Hi, I ordered a replacement RMT230, but when going to replace the old one, my old thermostat has 3 wires whilst the replacement does not have the terminal for the Neutral wire (Blue) which goes to the accelerator. My question is, can I simply make the neutral redundant? If so, what effect...
  18. J

    Baxi combi 105 HE - Swtichmaster SM300 upgrade to Salus RT510RF

    Hello everyone, I've got an issue with my current thermostat Swtichmaster SM300 when on it buzzes like hell and setting the timer is just terrible. I want to upgrade to a Salus RT510RF but I just wasn't too sure about all the wiring and wanted to double check. By the thermostat controller...
  19. G

    Water underfloor heating advice

    Looking for advice on UFH as well as general heating system. We have made the choice to get water underfloor heating in the middle of our refurb works for the kitchen. Rather than placing PVC pipes in plastic castellated floor panels, we will have them routed between joists and on top of...
  20. L

    Replacing thermostat connected to a ehc-Fusion boiler

    The boiler's circuit board is unlabelled, but based on the current configuration hope someone can help check my deductions/proposal... At the moment: Programmer/Timer (Sunvic Select 107XL) N/L connected to its own fused spur power supply. 1/COM is connected with a Brown/Live cable to the...
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