Nest Thermostat 3rd Gen with Bosch BVA-36WN1-M20

[AMIRKAR12]

Hi, I am looking for making the Nest thermostat work for heating and cooling for Bosch BVA-36WN1-M20. Can someone share the wire diagram best to make it work with this model ? Will there be issues in the future ? 

Also if we keep the eco mode off will that work better with this model ? 

Thank you

[AMIRKAR12]

@RenzJ can you help with this one thanks 

[luciaaa]

Hi, @AMIRKAR12,

Thank you so much for posting in the community! We're happy to help you get your heating and cooling systems working with your new thermostat.

To provide you with better assistance:

• Would you be able to share a picture of your previous thermostat and wiring configuration?

This information will help to check the compatibility and the wiring configuration.

Keep me posted.

Best regards,

Ana.

[AMIRKAR12]

Hi, I can share a picture on Friday if that's ok. I am currently out of town. Thank you for responding 

[luciaaa]

Hi, @AMIRKAR12,

Thank you so much for confirming you will share the picture. I really appreciate it. I will be here to assist you further.

Best regards,
Ana. 

[AMIRKAR12 · Accepted solution]

Hi here is the link for the wires for the current system https://photos.app.goo.gl/NeMaqsCgGxKdnZs68

[AMIRKAR12]

 

  

[luciaaa]

Hi, @AMIRKAR12,

Thank you so much for the pictures about your wiring configuration. I'm happy to assist you further.
 

After reviewing the pictures you shared, it seems your system is only compatible with the Nest Learning Thermostat (3rd generation). However, for safe and proper installation, we recommend consulting an HVAC technician to handle the wiring configuration.

You can refer to this article to check the compatibility of your system: Nest thermostat compatibility.

Keep me posted.

Best regards,

Ana.