Installing nest learning thermostat

[ISP]

 

[chaconmorales]

Hi @ISP,

Thank you for posting here in the community. I understand that you want to check the Nest Learning Thermostat installation. But no need to worry, help is here.

It's not clear from your post the specific issues you're experiencing with your device, so I'm limited in the additional troubleshooting I can provide you. If you can share with me more details about the installation issues, that would be very helpful. I'd also appreciate it if you can let me know any troubleshooting that you have already followed.  

However you can check the following article if you want to verify the Nest thermostat compatibility.

Please keep me posted.

Best regards,

Mario

[ISP]

thank you for reply. As you see in the picture I have only 3 wires labelled as 1,2,3 so i want to know which one should go to nest

[chaconmorales]

Hi ISP,

Thanks for following up and providing more details regarding your request. I’d be happy to help you with your device. Let’s check it out.
Based on the information available and picture attached I can verify that the Nest Learning Thermostat might be compatible with your system. However wire labels such as 1 2 3 and 4 indicate a proprietary system. Proprietary systems usually only work with thermostats made by the same manufacturer. But some proprietary systems may also have the option to use standard heating system wires. Contact a Nest pro and have them check if your proprietary system can be rewired to be Nest compatible. You can also use this link if you want to verify the Nest thermostat compatibility.

Let me know if you need more assistance.

Regards,

Mario