Nest High Voltage Installation

This illustration is only an example.

Nest high voltage installation.

Link before the nest thermostat otherwise high voltage current will irreparably damage the nest thermostat 12. You must get your own custom wiring diagram with our compatibility checker. Each system s wiring is different. 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.

Install the thermostat and heat link. The nest thermostat should be installed by a professional. Install nest thermostat with line high voltage i am new to reddit so i put my step by step instructional guide with pictures on how to install a nest thermostat when you have line voltage and baseboard electric heat in home improvement instead of directly into the nest subreddit. Spot install nest somewhere new using the included power plug and cord or using the stand for nest learning thermostat sold separately.

Check your thermostat s wiring. 12v power to thermostat call for heat. In some cases it is possible to make a high voltage system nest compatible. 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. Thermostats are designed to handle either low current or high current. If it reads something like 110 vac 115 vac or 120 vac then you have a high voltage system and the nest won t work. A typical high voltage thermostat with 2 4 black and red wires.

The nest thermostat only supports low current systems since they are by far the most common. It learns your habits and is controllable using smartphone applications when situations arise and you need to change the settings. However some systems that are high voltage use a higher current sometimes as high as 16a or higher for example electric radiators or electric underfloor systems. Symptoms caused by wiring issues usually occur when you re first installing your thermostat.

4 the nest learning thermostat is compatible with almost all central heating systems including. Connecting a nest thermostat to an incompatible system such as a millivolt proprietary or high voltage system won t deliver the power needed to charge your thermostat s battery and can damage your nest thermostat. A typical low voltage thermostat with multiple small wires in different colors. Contact a local pro and have them install a step down transformer to 20 30v.