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  1. Jacob S

    Heat Link wiring Nest Thermostat

    Hi all, New here so thanks for having me! I am changing my old RF thermostat (BRITISH GAS WR1 - a rebadged Drayton) to a Nest 3rd gen on Glowworm Flexicom. I've installed a nest before but this is to a different system.. looked at the wiring diagrams but none seem to match my current wiring...
  2. J

    Installing Nest ain't easy!

    Trying to replace the ticking programmer of my nightmares with a shiny Nest unit. Stuck on the swapping of wires as shown in the pics below. Any ideas on which wires go to which other than N and L which seem pretty obvious! https://photos.app.goo.gl/cpIXziTVpa3F3Pbw2
  3. Sibley14

    Nest Installation Advice to replace Honeywell CM927 / BDR91

    Hi there, i have zero electrical experience, but am looking to replace my wireless honeywell CM927 / BDR91 Control unit with the Nest 3. This is to control a Ferroli combi boiler. I could pay a professional, but It doesn't look to complicated to fit.....but then what do i know :-) Looking at...
  4. J

    Nest wiring for combi boiler

    Boilers a glow worm home30c combi I have run a 5 core from boiler to where my spur+nest heat link will be Am I right by following: Spurs LNE into LNE of nest heat link Link out L to common (terminal 2 in heat link) Rt boiler connection to terminal 3 of heat link Then 12v from heat link...
  5. Soulsurfer

    Nest protect ?

    Anybody used / using nest protect alarms ? Presently working on a house extension and need to fit smoke alarms and according to planning dept need to link to new alarms in living area downstairs and to landing on first floor also which would be difficult to get link cables to ! I thought smoke...
  6. L

    Nest Pro Installer

    Morning everyone, just wondering if anyone has any experience with being a Nest Pro Installer and what is involved in getting set up and if it was worthwhile, many thanks.
  7. G

    Little help with Nest Gen3 please

    I have one of these and want to install on a newly installed Viessmann 050-W which has a Vitotrol 100 xontriller/wireless fitted. I'd love to pay someone to come out and do it all for me, but have had to retire so funds are short! I'm reasonably confident and the heatlink etc, is in place, but...
  8. N

    Sense check on Nest / Worcester Bosch 280 wiring

    I’m looking to self install a Nest Learning Thermostat on my Worcester Bosch 280 boiler, mainly as it’s a rented house, and I need to be able to remove the Nest when I leave, or when the boiler is serviced. The wiring looks straight forward, but I just wanted to sense check before I go ahead...
  9. G

    Nest installation wiring help

    Hi all, I am trying to wire a nest 3rd generation thermostat into what I believe to be a s plan heating system and am after a bit of help please. Upon removing the cover for the old programmer, there appear to be two wires to each port please excuse my ignorance, but why would this be as it...
  10. S

    Nest 3G install help please, replacing Honeywell

    Hi I ordered a Nest 3G and want to install it replacing a Honeywell system. Everything I know is: Potteron Boiler Megaflow Tank Honeywell ST9100C1006 2 x Honeywell Thermostats The 2 Honeywell thermostats do upstairs and downstairs but I would like the nest to just do the whole house...
  11. A

    Nest 3G wiring help

    Hi all, this is my first post so please be kind. I installed a Nest thermostat a few months ago I have a gravity fed system powered by a Baxi Bermuda Back Bolier, I have a Honeywell 4043 2 port valve, I based the insatallation around a c plan as the wiring appeared to follow this logic although...
  12. N

    Nest Heat Link on a Worcester Bosch 280

    I have an old Worcester Bosch 280 combi. Currently it doesn't have a stat connected so the connectors on the board are N (Unused) 1 & 2 (marked as Room Stat) are jumpered, and I get 240V from 2 when metered out, but nothing from 1 (assumed to be stat switch on) 3 is unused and unmarked 4 is...
  13. D

    Installing Nest 3

    Can anyone advise on the right way to replace the danfoss tp9000 thermostat and ts2 sensor with the nest. I have attached pictures showing the current setup. Thanks in advance,
  14. R

    Connecting nest thermostat to valiant eco tec pro 28

    Afternoon all, Just wanted some clarification about connecting nest to a valiant eco tec pro 28 boiler. They way I have read the installation manual is that you take a l/n 230v to l/n on heatlink . Then terminals 2 and 3 which are the common and call for heat are wired to the rt230v . The link...
  15. D

    Nest 3rd Gen installation with y-plan system

    Hi Hoping to get some advice... I’m planning to install a Nest 3rd Gen into my house why has a y-plan system Boiler is glow worm flexicom 24hx Programmer is British Gas Model UP2 (Invensys) Room Thermostat is British Gas RS1 There is a wiring centre in the airing cupboard next to the...
  16. M

    Nest 3rd Gen Thermostat

    Hi I have a Nest 3rd Gen Thermostat and am wanting to replace my old Danfoss T9000. I have remove the Danfoss from the wall however I have 4 Live and 3 Neutral wires plugged into that and can't work out where why or where they are supposed to go. Has anyone had anything similar or know what...
  17. J

    Quick opinion on nest wiring.

    Hello, I'm currently working on a new rewire, and the client decided to use a nest system after I had wired in for a basic S plan system. I've noticed the link from the box to the thermostat is 12v, however i've wired this in 1.5mm cable. I'm assuming this will be ok as in the instructions it...
  18. L

    Nest Install

    I installed my first Nest system today and thought id share my experience. I installed two, nest third generation room stats, their not cheap at around £200 each. The reason i installed them is for a disabled person, this way they can turn on the heating without clambering into a wheelchair...
  19. S

    Nest Protect Notification alerts

    PLEASE READ THE POST ATTACHED AND COMMENT / FORWARD TO ANYBODY WHO COULD BENEFIT OR ASSIST IN REACHING AN OUTCOME! I will be adding a link to the Nest community so they can also see your responses. Thanks in advance! Kim https://community.nest.com/message/59544
  20. S

    Nest Protect query

    Having recently fitted a Nest Protect Smoke / Carbon Monoxide alarm in a hallway (no more than 3mtrs away from any headboards) I've become aware that the decide has a 85db alert tone. Isn't the minimum level for building regs 90db at the headboard of a bedroom?

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