Heating system wiring - can anyone help?

[eliot]

Alucidnation said:

You picked the wrong one!
The problem with internet diagnostics is knowing the persons abilities

I agree, but the fact he posted a schematic which was correctly colour coded with specific questions rather than a load of photos at a jaunty angle and expecting to be spoon fed the answer gave me some confidence in the o/p's ability to essentially identify the correct place to attach two wires.

[Alucidnation]

So, you were assuming his schematic was correct and that he wouldn't put 240V to a 12V or volt free connection?

Righto.

Edited by Alucidnation on Thursday 27th October 12:55

[eliot]

Alucidnation said:

So, you were assuming his schematic was correct and that he wouldn't put 240V to a 12V or volt free connection?

Righto.

Edited by Alucidnation on Thursday 27th October 12:55

I guess you are a pro and don't like it when someone shows what a piece of piss this stuff is.

[Alucidnation]

eliot said:

Alucidnation said:

So, you were assuming his schematic was correct and that he wouldn't put 240V to a 12V or volt free connection?

Righto.

Edited by Alucidnation on Thursday 27th October 12:55

I guess you are a pro and don't like it when someone shows what a piece of piss this stuff is.

Yes i am, and I honestly don't give a fk what anyone shows someone ( and yes, it is a piece of piss) however, i am more than happy to help out if i am confident there will be no comebacks and the person asking seems competent enough to understand.

Seen it happen a few times on various forums.

[Moonhawk]

Wondering about another modification. Currently the HW re-circulation pump is controlled separately by a manual Danfoss timer.

Given that the heating of the HW system is now controlled by the Nest - I was wondering whether I should bypass the Danfoss and allow the Nest to control HW re-circulation too.

That way - whenever the Nest is heating the water, it will recirculate (providing it instantly in the house) - but would shut off re-circulation when the heating is done, allowing whatever hot water remains in the system to stay insulated in the tank. It would also allow me to use the Nest's HW "boost" function to provide instant hot water on demand too and would also ensure that the re-circulation is synchronised properly with the HW heating (currently it may be out of sync owing to the fact that the Danfoss timer is not precise).

I believe this will be a single wire mod - moving the live wire of the HW pump from the "out" pin on the Danfoss to pin 6 on the Heat Link. I don't even have to remove the Danfoss timer - just switch it off. That way I can put things back simply if it doesn't work out.

Edited by Moonhawk on Friday 28th October 16:01

[brickmi72]

brickmi72 said:

good morning

would like to ask for advice as i bought nest third generation thermostat with hot water.

it supposed to be easy to set it up but i seem have issue with my current wiring as im component person do the electrics but want to make sure if i do it right or i could damage the nest!

i have attached 2 diagrams - one current and one for new nest wiring and real picture to show the wiring i got at the moment.

my issue is the yellow / green wiring - i know it is earth colour and connect to earth port but i suspect it is common live am i right? or it is earth? which i doubt

have a look at the diagrams and can you reply asap what should i do and simple diagram from you will help. i hope to install later today as i had nest not install for over a month! dont want waste it as i have ask the nest installer for info but they will charge me at last £90 for simple wiring NO thanks!

help

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http://thumbsnap.com/sc/hUCNDCMe.jpg[/img]|http://t...

[dirkgently]

brickmi72 said:

brickmi72 said:

good morning

would like to ask for advice as i bought nest third generation thermostat with hot water.

it supposed to be easy to set it up but i seem have issue with my current wiring as im component person do the electrics but want to make sure if i do it right or i could damage the nest!

i have attached 2 diagrams - one current and one for new nest wiring and real picture to show the wiring i got at the moment.

my issue is the yellow / green wiring - i know it is earth colour and connect to earth port but i suspect it is common live am i right? or it is earth? which i doubt

have a look at the diagrams and can you reply asap what should i do and simple diagram from you will help. i hope to install later today as i had nest not install for over a month! dont want waste it as i have ask the nest installer for info but they will charge me at last £90 for simple wiring NO thanks!

help

http://thumbsnap.com/sc/UGIdpkiY.jpg[/img]|http://t...http://thumbsnap.com/sc/GS7RHoaM.jpg[/img][url]
http://thumbsnap.com/sc/hUCNDCMe.jpg[/img]|http://t...

Looking at your wiring and, I would respectfully suggest you lack of competence I would say £90 is a bargain.

[eliot]

dirkgently said:

Looking at your wiring and, I would respectfully suggest you lack of competence I would say £90 is a bargain.

indeed.