Article Summary:
The technical specifications of the 2nd generation Nest Learning Thermostat.


HVAC Compatibility

The Nest Learning Thermostat works with 95% of 24V heating and cooling systems, including gas, electric, forced air, heat pump, radiant, oil, hot water, solar, and geothermal. This is based on data gathered through the Nest’s on-line compatibility checker, available here.

The Nest Learning Thermostat can control:

  • Heating: 1, 2 and 3 stages (W1, W2, W3)
  • Cooling: 1 and 2 stages (Y1, Y2)
  • Heat pump: with auxiliary and emergency heat (O/B, AUX, E)
  • Humidifier or dehumidifier (HUM, DEHUM)
  • Fan (G)
  • Power (C, Rh, Rc)

The Nest Learning Thermostat is designed to work even if your home doesn’t have a common “C” wire, but installing a new C wire may be required in rare cases.

Note: only one of the wires that go in the connector (HUM, DEHUM, E, W3) can be connected to the Nest Thermostat.

If you have dual fuel or a whole-home humidifier/dehumidifier we strongly recommend that you use professional installation.


Wire Connectors

  • Y1
  • Y2
  • G
  • O/B
  • Rc
  • W1
  • W2/AUX
  • C
  • Rh

The Nest Thermostat’s connector can accept only one of these wires:

  • W3, E, HUM or DEHUM

 


Technical Specifications

  • 24 bit color
  • 320 x 320 pixel display
  • 44.5 mm/1.75 in diameter

  • Temperature
  • Humidity
  • Proximity
  • Far-field activity
  • Near-field activity
  • Ambient light

  • 802.11b/g/n @ 2.4GHz
  • 802.15.4 @ 2.4GHz

  • English
  • English (British)
  • Spanish
  • French (Québécois)
  • French
  • Dutch

  • Built-in rechargeable lithium ion battery

  • Bandwidth less than 50MB/month upload and 10MB/month download (for software updates mainly)

  • 2 years

 

  • Less than 0.03kWh per month


Size


In the box

  • Mass = 215 g/7.6 oz
  • Diameter = 83.0 mm/3.27 in
  • Height = 8.0 mm/1.10 in

Base

  • Mass = 37 g/1.3 oz
  • Diameter = 76.5 mm/3.01 in
  • Height = 10.7 mm/0.42 in

Trim plate

  • Width = 150 mm/5.92 in
  • Height = 112 mm/4.41 in

  • Mass = 252 g/8.9 oz
  • Diameter = 83.0 mm/3.27 in
  • Height = 32.0 mm/1.26 in









Environmental

  • RoHS
  • Arsenic free
  • Mercury free
  • PVC free
  • Recyclable packaging

  • 0º C to 40º C / 32º F to 104º F
  • up to 90% RH (unpackaged)
  • pressure = 7500 ft altitude

  • -20º C to 45º C/ -4º F to 113º F
  • up to 80% RH (in packaging)
  • pressure = 1600 ft altitude

LCD Display

Sensors

Wireless

Languages

Battery

Bandwidth

Warranty

Power consumption

Display

Assembled Unit (Display + Base)

 
  • Display
  • Base
  • Nest screwdriver
  • Welcome Guide
  • Installation Guide
  • Optional mounting kit
  • Mounting screws & labels
 

Green

Operating

 

Storage