Installation Manual

HVAC System Compatibility
System Compatibility:
● Works with most 24V systems: gas, electric, oil,
forced air, heat pump, radiant, oil, boiler, solar,
and geothermal
● Heating and Cooling: 1 stage of heating (W1)
and cooling (Y1) and a second stage of either
heating (W2) or cooling (Y2)
● Power (R, Rh, or Rc)
● Fan (single-speed) (G)
● Heat pump: with auxiliary and emergency heat (O/B,
AUX)
Connectors:
Networking requirements:
● Y1
● G
● R
● W1
● C
● */OB
● Wi-Fi is required for software updates and remote
control with the Nest App
● Wi-Fi 802.11b/g/n 2.4GHz, 802.11a/n 5GHz
● Secure: AES-128, SSL/TLS, WEP, WPA/WPA2
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Technical Specifications
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Power:

- No external power required
- No common wire required with
most installations
- Built in lithium-ion battery
- Uses less than 1 kWh/month
- Voltage requirement: 20-30 VAC
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Display:
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- 24-bit color LCD
- 320x320 resolution at 182
pixels per inch (PPI)
- 4.5 cm (1.76 in) diameter
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Sensors:
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- Temperature (10 sensors) +/-
.5°F Humidity +/- 3%RH
- Far-field activity
- Ambient light
- Nest utilizes local weather data
over Wi-Fi instead of outdoor
temperature sensors
Green:

- Energy Star
- CEC Title 20
- CEC Title 24 Residential
- CEC Title 24 Nonresidential
- Recyclable packaging
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Box contents:
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- Display
- Base
- Trim kit
- Mounting screws
- Wire labels
- Installation guide
Size and weight:
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Display:
- Mass = 139 g / 4.9 oz
- Diameter = 8.1 cm / 3.19”
- Height = 2.89 / 1.14”
Base:
- Mass = 38.3 g / 1.35 oz
- Diameter = 7.6 cm / 3”
- Height = 1.1 cm / 0.42”
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