Hive Install to replace Danfoss two TPOne

[Jord611]

Hi All,
Kindly asking for some help.

Moved into a new build property that has an Ariston boiler and separate water tank with 2 zones (upstairs and downstairs).

Each Zone has its own Thermostat - Danfoss TPOne with only a brown (COM) and a black (NO) wire.
The TPOne is battery operated and acts as a Thermostat and Programmer hence there is no standalone programmer near the boiler.

Looking at upgrading to a Hive thermostat.

The wiring in the TPOne is just 2 wires Brown and Black. How do I install Hive receiver which requires L, N, Earth plus switch Live?
Also behind the TPOne 2 wires are not attached to anything. Grey and Earth.

Below is a picture of the wiring centre that is next to the boiler.

Thanks in advance

 

[CountryFan]

You need to work out whether those grey wires are neutral, if so, then you could utilise those either there or at the the TPone. Looks like there's a spare brown in the Wago - if it's permanent live then you can use that, it again at the TPone. Depends on where you want Hive receivers

 

[Jord611]

Looking to have the Hive receivers next to the wiring centre and then if the wires going to the Danfoss thermostats is redundant removing them

 

[CountryFan]

Ok, so you do still need to ascertain if those greys are neutral and if they are all used - if they are you need to add an additional wago.

You need to work out which is permanent live - some greys are but could also be the brown. Then you just need to alter the switch wires.

 

[Jord611]

Perfect thanks, in relation to the hot water is there anything that needs to be considered? It also has its own Danfoss module

 

[CountryFan]

If it's unvented then you may not be able to work on it, so I was told. You'd have to alter wiring for that too.