I have a Neptronic Model TSU00-110
Those are the connected wires.
1 COM Pwr White
2 24Vac Pwr Black
3 Com (B0) Black
6 BO3 (Binary Output 3) White
7 BO4 (Binary Output 4) Black
8 BO5 (Binary Output 5) Black
9 BO6 (Binary Output 6) Green
Not sure what is the equipment installed, but It is part of a large condo complex. There is also a large unknown controller in a ceiling access panel. It is a 3 Speed fan, heat/cool.
Thanks for answering.
Thanks for reaching out and we're sorry for the delay.
Based on the wiring labels you've included, it is different from the compatible wires for Nest Thermostat. Could you share a photo of your current wiring configurations from the old thermostat?
I hope to hear from you soon.
Thanks for answering, I'm not allowed to upload images, but here is a link to the wiring.
I've asked the Condo management the permission to install a Nest thermostat, and they refused. Actually i found out that I am not paying for the cooling and heat from that HVAC 🙂
FWIW this is the wiring, it may help someone else.
Thanks for the reply.
It looks like you're in a much better situation as you're using the HVAC service for free. We'll close this thread now and if you have any other questions, let us know by creating a new thread.