Hive - Dual Zone / Multithermostat Wiring Installation

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Hi All,

I've checked the other threads and can't seem to iron this one out myself as my system set up is a bit different to the examples i've seen so looking for some help.

I have an Ideal Heat2 H15 boiler (Ground Floor) with a ESI Therma tqx0027 programmer; unvented cylinder with it's wiring centre on the 1st floor - with two ESI ESRTP5 thermostat's on either floor.

I know I would need a Hive Dual Channel Receiver and a Hive Single Channel Receiver in place of the current programmer.

My understanding would be that both receivers - to pick up the L, N & E from the current programmer feed's cable. The Dual Channel receiver would also take the cable 3 & 4 from the current programmer into the new receiver. The single channel receiver would have it's link between L and 1; with the cable from programmer's 6 position to the receivers' 3 position. Is this correct?

The switch live from the 4-core from the boiler direct comes into the back box and then it's goes into a connector block and direct up to the wiring centre - albeit not sure at this point which cable that is at the wiring junction box.

I'm used to the more standard wiring junction box 10/15 ways and never worked on the set up i have now - so currently above my knowledge set.

For extra information for the wiring junction box -
The thick black cable to the top right is for the system pump; the three cables to the immediate right of the pump cables (black, grey & brown) are for room stat 1.
The three cables mid-right by themselves are under the programmer section (HW On, CH1, CH2 - top to bottom).
Top left is marked up for the mains feed; directly beneath are the three cables for room stat 2.
Then there is an extra earth and black cable for L/S those i must admit it doesn't seem clear to me what that cable specifically does.

How would i go about this area's work? Would it be easier to link out at the existing programmer's position and have the receivers upstairs somehow?

Ideally i would just decommission the wires at the existing thermostat positions and have the wireless Hive Thermostats in the same positions.

Any help or guidance would be much appreciated - thank you :)
 

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Can you confirm that this image matches your wiring centre?

Screenshot_20250104_151912_Adobe Acrobat.jpg


If so:

Personally, I would decommission the existing controller and stat wiring - it may be useful to keep it in place for future needs, but safely isolate it.

I would wire up the dual and single channel Hives directly to the wiring centre.

These two connections;

Screenshot_20250104_152547_Chrome.jpg

that would connect to terminals 4 and 6 on the programmer (CH1 on & CH2 on), I would bridge both to the L feed with a couple of short link wires, I.e.

Screenshot_20250104_153903_Pocket Paint.jpg


The HW on terminal - that would connect to terminal 3 of the programmer, would connect to terminal 3 of the dual channel Hive.

Then connect the heating zone 1 terminals to the dual channel Hive - N/O to Hive terminal 4

Connect the heating zone 2 terminals to the single channel Hive - N/O to Hive terminal 3 and add a link wire between L and terminal 1 on the Hive.

I hope that makes sense!

Edit:
The board isn't quite the same, but the principle stands!
 
Last edited:

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