Samsung VRF with Google Nest

[Achint]

Hi

i have Samsung VRF and want to connect and use google nest with them. Can it be done? If so please let me know how

[CoolingWizard]

VRF system use a proprietary control system that is not a conventional HVAC control system.  The key is the old thermostat. Does it have 5 wires, R, Y, G, W, C or just 2 or three, D+, D-, G or 1,2,3.  

Ken, The AC Cooling Wizard

[Jenelyn_O]

Hi there,

Thanks for reaching out. Could you please share with us the photo of the wires you have on your current thermostat? It will help us to move forward. Also, you can visit this support article for more compatibility information. 

I appreciate your help, @CoolingWizard.

Best,

Jenelyn

[Jake]

Hey there,

I wanted to check in and see if you managed to see Jenelyn's post. Please let me know if you have any questions from here. I would be happy to assist, and make sure you are good to go.

Best regards,
Jake

[Achint]

Hi

i want to know how to connect google nest with VRF. The VRF system works on 5volt with 3 wire proprietary design 

so wanted to understand how to do it

[CoolingWizard]

Achint,

The VRF system use a proprietary control system utilizing digital communications between the Thermostat and the outdoor unit.  This communication is based on an RS-485 serial interface. This system is not compatible with the Nest or any conventional thermostat that uses 24Volt AC control system. 

The AC Cooling Wizard

[Jenelyn_O]

Hi there,

I'm sorry for the delay. I hope you get the answer you're looking for provided by CoolingWizard. For additional, some proprietary systems can be rewired by a pro installer to be compatible.

I appreciate your help, @CoolingWizard and Jake.

Thanks,

Jenelyn

[EmersonB]

Hey everyone,

@Achint, we wanted to follow up and see if you are still in need of any help. Please let us know if you are still having any concerns or questions from here, as we would be happy to take a closer look and assist you further.

I appreciate the help, Jenelyn, CoolingWizard and Jake.
 
Regards,
Emerson

[Jake]

Hey there,

I wanted to check in, and let you know that I will be locking the thread in 24 hours.

Best regards,
Jake