Your nest thermostat uses the voltage from your system s wires to keep its internal battery charged.
Nest thermostat e high voltage.
In addition to the basics explained before in regard to wiring a nest learning thermostat to a high voltage system i want to use the nest to set the fan speed of which there are 3.
High voltage wires if your thermostat is labeled 120v or 240v or has thick wires with wire nuts or has l1 and l2 terminal blocks your system is high voltage and isn t compatible with the nest thermostat.
I have had my nest gen1 for almost 16 months now and i probably could not go back to a regular dumb thermostat given the choice.
The nest thermostat e will list a device id that s unique to your display.
Your thermostat will also turn off features like wi fi to preserve battery life before it must turn off completely.
Contact a local pro and have them install a step down transformer to 20 30v.
You would love to have the nest thermostat but you have line voltage heaters.
If the power to your system is switched off or there s a blackout the battery has enough capacity to keep working for a while.
Use it just like a normal thermostat turn the ring up when you want it a little warmer and turn it down when you want it a little cooler.
The nest charging problem has been solved by connecting the c ac common wire from my furnace to the nest.
Select your thermostat below.
The fan coil unit is new high voltage and has a motor with 3 speed settings.
Your nest thermostat s display has a unique serial number.
In some cases it is possible to make a high voltage system nest compatible.
The time zone for the nest thermostat is based on the zip code entered during setup.
High voltage thermostats are usually labeled 110 115 120 or 240 vac note.
The 2018 nest learning thermostat 3rd generation is not only compatible with high voltage systems but it works as your best friend who is an agoraphobe and never leaves the house.
12v power to thermostat call for heat common satisfied optional 230v ac live and neutral input power thermostat install heat link 5.
Nest learning thermostat 3rd gen nest thermostat basics.
This lets you see if your nest thermostat e is locked or unlocked.
Nest thermostats don t have a touch screen.
Link before the nest thermostat otherwise high voltage current will irreparably damage the nest thermostat 12.
Well now you can control your 240v heaters with this solution and get control o.
Nest thermostat update and voltage measurements.