Adding wires for Tstat

[lithiumus]

At the moment, I have 2 NEST thermostats. A 5 wire Tstat wire was installed at both Tstat locations. We realized that the NEST wanted a common to properly charge so a Venstar add a wire was used to provide the common. We also have a dual stage cooling unit (Goodman). How do we get one more wire to the Tstat? Is is possible to use 2 Add a Wire units to get a 5 wire to 7 wire?

[wahoo]

If you are a "pro" then get your post count up and join the pro section. You can ask tech questions there. Otherwise, this is not a DIY site. Sorry

[tedkidd]

If you are a "pro" then get your post count up and join the pro section. You can ask tech questions there. Otherwise, this is not a DIY site. Sorry

Switch to Ecobee, then you only need 4 wires from stat to interface module, which lives at your ahu.

[beenthere]

2 Nest thermostats. Do you have 2 units?

[Shophound]

I thought the Nest stats did not do multi-stage heating or cooling, but just today saw an article about the next gen Nest that does. It's a sweet looking thermostat but strikes me as a little overpriced, when competing stats, while perhaps not as sexy, do almost everything a Nest can do, but cost less.

[mattt787]

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[54regcab]

+1, i didn't think the nest stats were compatible with anything but the most basic systems. Any other thermostat in the Nest price range can easily handle a 2 stage unit.

[jpsmith1cm]

matt787

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[beenthere]

I thought the Nest stats did not do multi-stage heating or cooling, but just today saw an article about the next gen Nest that does. It's a sweet looking thermostat but strikes me as a little overpriced, when competing stats, while perhaps not as sexy, do almost everything a Nest can do, but cost less.

If they add a few more abilities to the Nest, they'll have an Edsel.

[tedkidd]

lmao

(thanks)

[Shophound]

If they add a few more abilities to the Nest, they'll have an Edsel.

Well, at least it does not look like a horse collar!

[chuckcrj]

If they add a few more abilities to the Nest, they'll have an Edsel.

That's awesome!

[mark beiser]

Assuming you have a 2nd generation Nest thermostat, that is capable of 2 stage cooling and up to 3 stages of heating, they make Add-a-Wire units that add more than one wire.

Until I looked it up today, I didn't realize the 2nd generation Nest was out yet.

It still doesn't have the capability to run both humidification and dehumidification, there is only one terminal for it, so you have to pick the one you want, and it can't do ventilation control.