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Doble wires Nest Termostat

ivanmishanin
Community Member

I have an issue connecting the Nest thermostat. Can you pls help me with the wiring? 

That is my old wiring. The issue is W1/B/O (has 2 wires in one socket) and C (has 2 wires in one socket). 

For reference - my old thermostat datasheet.

Quastions:

  • Old G3 I connected to Y2. Is that correct?
  • How I should connect 2 C wires in Nest?
  • How I should connect 2 wires from old W1(B/0) to Nest?

IMG_1793.jpgfmt24-hp21-2s-fp-prog_sci.jpg

3 REPLIES 3

Sebnestuser
Community Member

I don’t really understand your hvac system but this guy on YouTube explains all the wiring for nest thermostat I hope it helps check out the link

 

https://youtu.be/CCNIko3iZIE

Jake
Community Specialist
Community Specialist

Hey ivanmishanin,

 

Please let me know if you are still having trouble, as I will be locking the thread in 24 hours due to inactivity. 

 

Thanks for the help Sebnestuser.

Best regards,
Jake

Jake
Community Specialist
Community Specialist

Hey ivanmishanin,

 

It has been a few days since the last reply, and I am going to lock the thread at this time. If you have any questions, please feel free to create a new post. 

Best regards,
Jake