Installation Manual
HVAC System Compatibility
System Compatibility:
● Works with 95% of 24V systems: gas,
electric, oil, forced air, heat pump & radiant
● Heating: 1, 2 and 3 stages (W1, W2, W3)
● Cooling: 1 and 2 stages (Y1, Y2)
● Power (C, Rh, Rc)
● Fan (including multi-speed) (G or G1,G2,G3)
● Humidifier or dehumidifier (HUM, DEHUM)
● Heat pump: with auxiliary/alternate and emergency
heat (O/B, AUX, ALT, E)
Connectors:
Networking requirements:
● Y1
● Y2
● G
● O/B
● Rc
● W1
● W2/AUX
● C
●
● Rh
● Wi-Fi is required for software updates and remote
control with the Nest App
● Wi-Fi 802.11 b/g/n, 2.4 GHz
● Secure: AES-128, SSL/TLS, WEP, WPA/WPA2
Technical Specifications
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: 20-30V AC
Display:
- 24-bit color LCD
- 480x480 resolution at 229 pixels
per inch (PPI)
- 5.3 cm (2.08 in) diameter
Sensors:
- Temperature (10 sensors) +/-
.5°F Humidity +/- 3%RH
- Near-field activity
- 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
Box contents:
- Display
- Base
- Trim kit
- Mounting screws
- Wire labels
- Installation guide
- Welcome guide
Size and weight:
Display:
- Mass = 205.4 g / 7.25 oz
- Diameter = 8.4 cm / 3.30”
- Height = 2.69 / 1.06”
Base:
- Mass = 38.3 g / 1.35 oz
- Diameter = 7.6 cm / 3”
- Height = 1.1 cm / 0.42”
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