topic Re: Need help with wiring in Nest Thermostats

Need help with wiring

Mikeaus — Thu, 09 Feb 2023 00:55:00 GMT

Hi Folks

I have business heating cooling system in my office.

When I opened the old thermostat I have these wires -

I was hoping someone could confirm the mapping between this and the Nest (3rd gen) please?

(followed the prompts on the app as well...still not cooling?)

Thanks in advance,

Mike

Re: Need help with wiring

Patrick_Caezza — Thu, 09 Feb 2023 04:10:00 GMT

I can not read all of the labels. can you post a better picture clearly showing the label and wire color?

Re: Need help with wiring

Markjosephp — Sun, 12 Feb 2023 17:46:33 GMT

Hello folks,

I wanted to ensure that everything was covered here.

Thanks for assisting, @Patrick_Caezza.

@Mikeaus, thanks for posting the photo of your thermostat's wiring. To determine its compatibility, could you confirm the terminals behind the blue and purple wires? Also, what's the make and model of your HVAC system?

I'll look forward to your response.

Regards,

Mark

Re: Need help with wiring

Mikeaus — Sun, 12 Feb 2023 23:18:24 GMT

Thanks for the help here and sorry about the average photos. The system is a heating and cooling unit approx. 25 years old.....works well. It's by a company called EmailAir. (one word).

The current thermostats are over complicated - 12 buttons no info of the buttons really or manual 😞

Many thanks for the help again, cheers Mike

Re: Need help with wiring

Mikeaus — Tue, 14 Mar 2023 02:58:44 GMT

Hi all been a while, any further updates please...

Thanks, Mike

Re: Need help with wiring

Markjosephp — Wed, 15 Mar 2023 17:34:13 GMT

Hello there,

I'm sorry for the delay. Your system is compatible with a Nest Thermostat, but the wires connected to your thermostat are stranded wires. You may be able to contact a local HVAC professional to cap, solder, or replace stranded wires with a solid core wire, which will work with the Nest Thermostat. The method may depend on your local electrical code requirements.

Let me know if you have more questions.

Regards,

Mark

Re: Need help with wiring

Markjosephp — Sat, 18 Mar 2023 19:10:51 GMT

Hey there,

I wanted to see if you still needed help. Please let us know if you have any other questions or concerns.

Thanks,

Mark

Re: Need help with wiring

Mikeaus — Sat, 18 Mar 2023 22:50:10 GMT

Many thanks, I have reached out to an installer and shared your message regarding what to do. Once completed Ill come back with a final update. Thanks again, Mike

Re: Need help with wiring

Markjosephp — Tue, 21 Mar 2023 19:21:45 GMT

Hi there,

Awesome! Keep me posted, as I would be glad to know what the result would be.

Regards,

Mark

Re: Need help with wiring

EmersonB — Fri, 24 Mar 2023 19:49:06 GMT

Hi everyone,

@Mikeaus, I'm dropping by to ensure that everything is covered here. How's it going with your Nest Thermostat? We would appreciate it if you could share your update here with us.

I appreciate the help, Patrick_Caezza and Mark.

Thanks,
Emerson

Re: Need help with wiring

EmersonB — Sat, 25 Mar 2023 23:31:12 GMT

Hey Mikeaus,

Just one quick final check in here since activity has slowed down. We'll be locking the thread in the next 24 hours, but if you still need help, we would be happy to keep it open. If there's more we can do, just let us know.

Best,
Emerson