38CDI Digital installation

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Hi all. I have a TADO and Extension Kit fitting. My boiler is a Woucester Bosch 38CDI.

Is there anyway of working out if my TADO is plummed into the digital EMS interface of my boiler. It was installed a few years back and I honestly cant remember. I could open the boiler up but was hoping there is an easier way to be able to tell.

Also can the 38CDI be connected up to Hot Water Controls. It currently isnt.

Unfortunately as my extension kit is already installed I have no way of getting back onto the TADO installation guides. Is there any way around this.

Thanks

Steve