Help wiring Tado Hot water receiver

AM70

Hi, I'm trying to install Tado myself and I ran into something and would love some help. I live in a new build. There are 2 zones for heating and 1 for hot water tank. There are 2 thermostat (ground floor Honeywell home analogue and upstairs Honeywell Cm707. Lastly I have 1 programmer (Honeywell ST9400C) which is underneath the boiler Logic System s15. I bought the wireless starter kit with hot water control and wired add on thermostat for upstairs (advised by tado).

Now I managed to install the wireless thermostat and bridge. The problem I have is the wireless receiver. There are 3 wires N, 3 wires L, 2 wires 1, 1 wire 3 and 1 wire for 4. See image attached,

My question is should I use all of the wires and connect to tado? So N, all 3 wires in tado? The L is really difficult as there is a bride already in L from tado and I still have 3 other L wires. Should they all go in the other slot in L? Similar question for terminal 1.

Thanks in advance.

wateroakley

After careful looking, four of the wires are obvious. Blue (N) neutral and Live (L) feed, HW ON (3) and CH ON (4). You'd still need to check which pair are the mains feed. Without any sleeves or labels to help, the use for the other wires is unclear? Maybe power to the boiler and/or room stats? I can't see a reason for the two wires on HW NC (1) in a typical system? It may help with deciphering to post pictures of your analogue and CM907 thermostat wiring.

AM70

Thanks for looking into it @wateroakley. I went through multiple posts to see if anyone had similar setup as mine and came across this tread. https://community.tado.com/en-gb/discussion/comment/54752#Comment_54752

According to @GrilledCheese2 comment you can't replace 3 zone controller as a DIY install because the Tado controller only controls 2 zones. So the option he suggested and the one I want to setup is: Install Tado's 2 zone controller, but join the wires for CH 1 and CH2 together, so you are reduced to a single heating zone. You can re-zone the system using smart TRVs.

Back to your question, the installation assistant advised to follow this for the receiver.

Here is the picture of the analogue wiring of honeywell home.

And lastly here is the pic of honewell cm707 only 2 wires

Underneath again the pic for current receiver Honeywell st9400C

I think now I'm understanding a bit better after putting everything together (but I might be way off as well). So since the analogue thermostat is being replaced by the wireless stat I had to decommission it and securely wago fitting. That would mean the whole wiring for that analogue can be also decommission (all Live wire related to analogue and any other wire??) when fitting the wireless receiver right? Since the CM707 will be replaced by Tado wired thermostat this then all of the wires have to be fitted in receiver right? The question is which wire belongs to analogue and which to the CM707 and how to find that out.

Sorry for the long post and really appreciate your help as tado support hasnt responded to my question which I messaged them yesterday.