help with unvented cylinder, cobi with dual channel hive

[cm electical]

hi need help with wiring this.
basically new build with combi boiler, unvented cylinder with dual channel hive
ive attached pics with the wiring diagram giving but im now using a hive instead
so ive altered it to what i think is correct
obviously ive never sleeved any or added earths in diagram as shown

the kit come pre wired with 2 zone valves and thats the way plumber has left it, so ive doubled zone 1 and 2 up in wiring centre with link from 12 to 6.
ive ran a 4core n earth to boiler from wiring centre. but only connected brown, blue, black to switch live out.
is this correct as ive alter the diagram as it was shown live from 15 to boiler, so i changed it and went from 1 to live in boiler to give it perm live.???

i also ran a 4core n earth to hive reciever into live,neutral, 3 and 4.

 

[davesparks]

Something is very wrong there!

A combi boiler and an unvented cylinder just don't go together for a start.
What is the point of the unvented cylinder in this arrangement?

The plumber has joined the outgoing side of both valves together which is wrong.

You have bare copper links between the terminals of the joint box, they need to be insulated links.

 

[UNG]

With the number of pipes to the boiler it would suggest you have a system boiler and not a combi, also there would be no point in having an unvented cylinder with a combi

 

[davesparks]

As per the clearly written warning label on the boiler terminals the supply to the external controls must be taken from terminal 2 and the switched live to the boiler connect to terminal 1.

 

[cm electical]

Something is very wrong there!

A combi boiler and an unvented cylinder just don't go together for a start.
What is the point of the unvented cylinder in this arrangement?

The plumber has joined the outgoing side of both valves together which is wrong. One of those valves must be connected to the coil of the unvented cylinder.

You have bare copper links between the terminals of the joint box, they need to be insulated links.

sorry its a system boiler,

 

[cm electical]

the links are the way it was sent like this

 

[cm electical]

so why does this diagram only show 1 cable from outgoing side of boiler, do i need to use the grey aswell?

 

[cm electical]

can you draw me a diagram please

 

[davesparks]

so why does this diagram only show 1 cable from outgoing side of boiler, do i need to use the grey aswell?

I would guess it is because that diagram is not supplied by the boiler manufacturer.

It looks like that diagram has been drawn by someone who doesn't understand what they are doing, where is it from?

 

[cm electical]

I would guess it is because that diagram is not supplied by the boiler manufacturer.

It looks like that diagram has been drawn by someone who doesn't understand what they are doing, where is it from?

off a website.
so does the boiler need live, neutral,earth and 2 more cores or does its just need sw live from 15 in wiring centre,neutral,earth and then leave link in 1 and 2?