Honeywell ST699 to Hive

[Benway]

Evening.

As 10PM on a Sunday night is always the best time to start messing around with your heating system can someone confirm the below. Thanks.

I'm starting with this:

St699 Honeywell Photo

• Benway
• 30 Oct 2016

HIVE say wire like this:

Hive Diagram

• Benway
• 30 Oct 2016

My plan is this......

Plan

• Benway
• 30 Oct 2016

All looks good before I kill the heating?

Cheers

 

[Echo the husky]

Yes that's fine.
Does anyone know why is there a suddenly a huge number of people wanting to change their 699 to Hive?!

 

[ollski]

Yep, just whip the links out and go like for like

 

[Benway]

Cheers dudes. As for the sudden HIVE rush, I think BG's electricity/gas deals are quite good at the moment so we just moved over to them, so BG might be pushing the HIVE?

Thanks Again.

 

[Benway]

All working like a dream. Bypassing the thermostat, removing it totally from the wiring centre rather than bridging it at the actual stat took a bit of thinking, and the Hive instructions were suitable vague about it!

Thanks again!

 

[petit_pablo]

Does anyone know why is there a suddenly a huge number of people wanting to change their 699 to Hive?!

Various offers on hive at the moment.

 

[Crusty9]

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[petit_pablo]

3rd Gen? That doesnt look like a hive diagram.

Anyways take the red link wires out of 8-5-L then its like for like except 7 goes to 4. If you have to put commons in then link L-2-5 together like the old clock was. Ive no idea if you need to link the commons on this though.

 

[Crusty9]

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[Crusty9]

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[Benway]

Dudes!

I'm getting my old boiler swapped for a Baxi combi tomorrow and was wondering if I can still use the dual channel Hive? As far as I can tell the Hive receiver is just a switch so logically it should be fine, it's just how it is wired.

The Baxi has connections bk1 and bk2.

bk1 on the Baxi I was planning on connecting to 4: Heating on (NO) on the Hive
bk2 on the Baxi though?

The single channel version has a 1: Common terminal which I'm guessing would be where you would connect bk2, but I would rather not have to shell out and use the dual channel version I already have.

Thanks.

 

[Echo the husky]

leave the BK2 terminal empty, just connect BK1 as you mentioned. The BK 2 terminal is mainly there if the built in timeclock is used, as the time clock switches power to BK2.

 

[Benway]

Cheers.

This went in yesterday morning and using the only resource I could find on the subject I wired it up as the picture http://www.alswebpage.net/wp-content/uploads/2015/12/Double-Channel-Hive-Wiring1.png

Not sure if it's using Hot Water Off (NC) as just a terminal to hold the wire but all seems to work........ So at least it saves me £100 changing the dual channel to single channel Hive.

Thanks again.

 

[frqnck]

About to engage in the same, although my ST-699 is wired slightly differently.

So I am starting with this:

ST699B-Honeywell

• frqnck
• 16 Apr 2017

And the rewiring plan:

Rewiring-Plan

• frqnck
• 16 Apr 2017

Is this plan right?

Many thanks

 

[Echo the husky]

So I am starting with this:

That's not a good start.

Is this plan right?

No, it does not match the existing wiring.

Does your heating system currently work properly? If it does what valves, thermostats etc. do you have? The existing wiring can't be matched to the hive as the connections to common are already made internally. I assume you have some sort of gravity hot water setup?