Nest Thermostat Compatibility

[delta07d]

Green, Yellow, White with RH RC jumped , will Nest work with this?

Thanks

[HVAC]

Nest would work but you’re a missing a wire that would connect to C to power up nest all time. Otherwise you have to keep charging it from time to time. You can use the 4 wires only that you have & rewire system to get power but you would loose the ability to use the fan only function. Good luck. 

[delta07d]

Thanks for the response but can this control both heating and A/C with just the red wire used? 

[HVAC]

it can need to connect

red to Rh on nest 

yellow to Y/Y1

white to W/W1

Green to G

good luck 

[delta07d]

Hmm must have a different nest thermostat only has R no RH

[HVAC]

Ok that’s fine you connect to R they have different models didn’t know which one  is yours. Good luck. 

[Jenelyn_O]

Hi folks,

Thanks for posting in the Google Nest Community forum. I'm sorry for the delay. It looks like you have a conventional system. It is compatible with the Nest Learning Thermostat or Nest Thermostat E. However, if you prefer to have the Nest Thermostat 2020, you might be needing to have a C wire of a Nest Power Connector.

Wiring guide:

• W/W1 - White (Heating)
• Y/Y1 - Yellow (Cooling)
• G - Green (Fan)
• R/RC/RH - Red (Power)

You can visit this support article for more information.

I appreciate the help, @HVAC.

Best,

Jenelyn