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Discuss Nest e thermostat wiring question in the UK Electrical Forum area at ElectriciansForums.net
I would agree with Tele ,and would agree with your self .I just want to make sure it’s compatible before I get someone to install it
possible that is a two wire system .Does seem unusual not to have a neutral at an old existing room stat. Someone moved the existing stat in the past
N is indeed neutral.Is N neutral?
Gas was only installed about ten years ago
so, if i read your right. ( bear in mind i have no knowlege of nest), he needs a 3core/E (or 4 core flex) from boiler to receiver, and just a pair to the actual stat., which mus be RF to the base unit?The nest thermostat is a combination of time clock and thermostat.
The base “receiver” unit can be fitted next to the boiler where there will be all the cables that you require.
The control or thermostat unit would normally be placed wherever the old thermostat is mounted and only needs 2 cores. This is to supply power from the base unit to the stat unit, as per the instructions.
All the control signals are sent wirelessly from the stat to the base unit.
Although this could be done by someone good diy skills and electrical knowledge, I would recommend getting a professional in to do it.
A mistake in the wiring could do any of the following.
1. Write off the boiler control board
2. Write off the nest thermostat
3. Cause a shock or other injury
4. All of the above at the same time.
As long as you have a wire with at least 2 cores going from the boiler to the old stat, a professional should have you up and running within the hour.
P.s. for the techs reading this, the only function of the link wire from base unit to stat is to supply 12v dc to the stat for its own power.
op I would ask the people at nest to sort you out .I’ve just spoken to nest tech support and told her that I only have a 2 wire system and she seemed very confident that they will connect to the C and NO and that the system will work.
have you written permission from them to alter the wiring for the nest .It’s also a housing association property
Reply to Nest e thermostat wiring question in the UK Electrical Forum area at ElectriciansForums.net
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