Old Genvex system thermostat

[JeverSebelin]

Will this system be able to connect with a google nest thermostat? The model name is called Genvex 315 VP -C with the  type number: 9907.7110.1321 and is very old. I am from Denmark/Europe, and would really like to switch this analog controller board out with a google nest thermostat, but don’t know if this will even be possible. The Genvex system itself has both heating and cooling.

  

[JeverSebelin]

 Also added a picture of the controller with the “lid” on

[CoolingWizard · Accepted solution]

@JeverSebelin , the Genvex thermostats used out in most of Europe operate with 220 V control power. As a result, they’re not compatible with Nest thermostats.  

AC Cooling Wizard

[JeverSebelin]

Hello CoolingWizard,

Thanks for a good explanatory answer here. Do you know if there are other alternatives regarding switching out this old controller? 

[JeverSebelin]

But would this controller which is directly connected to the system through this wire be too much? This is not the same type of wire as if I were to hang up a lamp

 

 

[CoolingWizard]

@JeverSebelin you need to check with a specialist who has Google nest certification in your country to determine that. All I know is the current nest thermostats can only handle 24 V AC power and your system is operating on 220 V of AC power.

AC Cooling Wizard