Does this require a c wire ? null

I have installed my nest in an older system which did not have a C wire. This worked for a one zone configuration. If your home has more that one zone, you will need to run a C wire. If your controller does not have a C terminal, you can use a relay to create one.

No it does not, but we actually installed one from our furnace so now we do not have to worry at all about batteries going dead. Much easier! I really recommend using the C wire if you can.

Not all HVAC systems require a common wire for the Nest to work. You can check for compatibility here: https://nest.com/support/article/How-to-tell-if-your-heating-and-cooling-system-will-work-with-the-Nest-Thermostat

“Does this require a c wire ?”

Asked by Fed425 6 years ago

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I have installed my nest in an older system which did not have a C wire. This worked for a one zone configuration. If your home has more that one zone, you will need to run a C wire. If your controller does not have a C terminal, you can use a relay to create one.
Answered by Joey 6 years ago
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No it does not, but we actually installed one from our furnace so now we do not have to worry at all about batteries going dead. Much easier! I really recommend using the C wire if you can.
Answered by Mizshutterbug 6 years ago
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No
Answered by Diha 6 years ago
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Not all HVAC systems require a common wire for the Nest to work. You can check for compatibility here: https://nest.com/support/article/How-to-tell-if-your-heating-and-cooling-system-will-work-with-the-Nest-Thermostat
Answered by Nest Support 6 years ago
Sorry, there was a problem. Please try again later.