Connecting Hive to a Greenstar CDI Compact Boiler

[Yehbut]

Hi,

I am trying to connect a single channel hive to my boiler. Its replacing a BOSS Therm BPS242 none wireless which only has two connections. Boiler power provided by fused spur . See pics
Please advise connections required from Hive to Boiler.
Thanks in advance

 

[flameport]

The two existing wires are 1 & 3 in the Hive, additionally the Hive requires a power supply L,N,E also taken from the boiler.
Usually done by a 5 core flex from the boiler to the Hive receiver, which will replace the existing cable.

 

[Yehbut]

Hi Flameport,

Does the blue wire on the boiler picture go to the 1 common in the Hive and brown to 3 heating on.
thanks