Discuss Replacing Heating Controller With Nest Heat Link in the Central Heating Systems area at ElectriciansForums.net

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Hi,

I'm installing a nest in a vicarage where we'll only be temporarily (3-6 years) so hoping to be able to take it with us when we go, and reinstall the original timer.

I've had a look at the wiring to the heating controller, and it seems to my mind that this would be the most sensible place to put the heat link (ie. Replacing the heating timer, pictured below). Of course we'd then need to set the main thermostat so that it always was always triggering "on" (ie. Set it to max/30°C)
Replacing Heating Controller With Nest Heat Link IMG_20171112_110513 - EletriciansForums.net
Replacing Heating Controller With Nest Heat Link IMG_20171112_110542 - EletriciansForums.net
Replacing Heating Controller With Nest Heat Link IMG_20171112_104001 - EletriciansForums.net

The black wires in 3 and 4 here I think must correspond with 3 and 6 on the nest heat link below.
Replacing Heating Controller With Nest Heat Link nestheatlinkwiri - EletriciansForums.net

So my question is, do I need to loop from the live/neutral to 2 and 5?

Does this all make sense, or am I missing anything?

Many thanks in advance!

Mike
 
Remember the nest thermostat needs wiring back to heat link as it is 12v
Unless u are not putting it in old thermostat position, and are plugging it in somewhere
 

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