Nest with boilermate 2000

Hi, I want to use a nest thermostat with my boilermate 2000.
I'm kind of clueless how to get it working though, I assume I just swop the old basic dial thermostat over to the nest one which is easy enough. By swopping over wires to nest it's on connection 9, 10, 11

but what do I do with the heatlink with a boilermate system?
Is it connected to the boiler or to the boilermate upstairs or not used at all?

Any help appreciated

Wiring diagram:h**ps://ibb.co/fWrf0Q

HeatLink N -> BoilerMate N (terminal 9)
HeatLink L -> BoilerMate L (terminal 10)

HeatLink 1 -> Not Connected
HeatLink 2 -> HeatLink L (small jumper cable)
HeatLink 3 -> BoilerMate SL (terminal 11)

HeatLink T1 -> Original Thermostat N wiring
HeatLink T2 -> Original Thermostat L wiring

https://gledhill-repairs.forumotion.net/t1802-nest-thermostat-with-boilermate-2000

Thanks, I havent got the nest yet so a little hard to figure it out (the guy we bought house from said he tried to put one in and couldnt).
So from what I can gather the heatlink is installed upstairs next to boilermate and connected as you listed directly to the boilermate, nest thermostat installed where old one was and the wires from that that went into boilermate now go into the T1 and T2 connections on the heatlink?

Correct. Main thing to remember that T1 and T2 are 12V. Don't mix it with anything else. Those two wires must be disconnected from BM, connected to T1/T2 on heatlink and on other side will be connected to nest. It is 12V supply to nest from heatlink.
See Page 13 here http://www.plumbcity.com/wp-content/uploads/2016/02/Nest-Thermostat-Installation-Guide-UK.pdf

Great, thanks for help

scorp wrote:HeatLink N -> BoilerMate N (terminal 9)
HeatLink L -> BoilerMate L (terminal 10)

HeatLink 1 -> Not Connected
HeatLink 2 -> HeatLink L (small jumper cable)
HeatLink 3 -> BoilerMate SL (terminal 11)

HeatLink T1 -> Original Thermostat N wiring
HeatLink T2 -> Original Thermostat L wiring

https://gledhill-repairs.forumotion.net/t1802-nest-thermostat-with-boilermate-2000

I am going to buy the Nest at the end of the month and looking at setting this up myself. Seems fairly straight forward but can anybody send some photos of the their install and the specifically the terminals? With regards to the above I noticed that for example Heatlink N goes to terminal 9 (N) on boilermate however the manual suggests that the N terminal on the BM is terminal 10. Similarly the Heatlink L goes to terminal 10 as suggested above but the BM manual suggest the BM L is terminal 9, so essentially the L and N are swapped. All on P22 on the manual within the documents section. Filename is bm2000-iss10.pdf (I can't post links). Could somebody please clarify for me please?

Thanks

Craig

Hi I have installed the nest now and can confirm it's all working fine, really wasn't hard to do using the above info.
Although whoever wrote that mixed up the terminals as terminal 9 is L and terminal 10 is N on mine too. So like this:

HeatLink N -> BoilerMate N (terminal 10)
HeatLink L -> BoilerMate L (terminal 9)

HeatLink 1 -> Not Connected
HeatLink 2 -> HeatLink L (small jumper cable)
HeatLink 3 -> BoilerMate SL (terminal 11)

HeatLink T1 -> Original Thermostat N wiring
HeatLink T2 -> Original Thermostat L wiring

Thanks for the advice.

Does it matter about the clock on the BM? Does this have to be disconnected or left on, off or timer?

Thanks

I just leave the clock on full time and all works fine

What’s the jumper cable do ? Does that really need to be connected ?

Just moved into a house with a BoilerMate 2000 which seems to work well but now want to install a Nest 3rd Gen to control the heating. I can see threads with wiring diagrams which sound quite simple but I need to ask some stupid / simple questions;

Where do you actually connect the HeatLink to the BM2000? Inside by the timer? To a certain connection block? From the Junction box on the wall next to it?
What do you do with the wall thermostat, disconnect or leave it in place and connected?

Has anyone got any photos of their install?

Thanks in advance..

Just moved into a house with a BoilerMate 2000 which seems to work well but now want to install a Nest 3rd Gen to control the heating. I can see threads with wiring diagrams which sound quite simple but I need to ask some stupid / simple questions;

Where do you actually connect the HeatLink to the BM2000? Inside by the timer? To a certain connection block? From the Junction box on the wall next to it?
What do you do with the wall thermostat, disconnect or leave it in place and connected?

Has anyone got any photos of their install?

Thanks in advance..

Appreciate that this is dragging up an old thread but thanks to this I managed to get my Nest up and running.

A word of caution though, if you're connecting to a BoilerMate II the terminals are different and if you follow the scheme above you'll continually blow 3A supply fuses until you work it out!

For a BoilerMate II you need the following connections:

Heatlink Live - Terminal 9
Heatlink Neutral - Terminal 11
Heatlink 2 - Heatlink Live (small jumper)
Heatlink 3 - Terminal 10
Heatlink Earth - Terminal 12