Nest Thermostat E Operation Manual

The Nest Thermostat E is a smart, Wi-Fi enabled thermostat designed for simple, affordable home temperature control. It supports most 24V heating and cooling systems and integrates with the Nest app for scheduling and remote access. Below are the key specifications and operation instructions.

1. Key Specifications 2. Operation Instructions 2.1. Initial Setup 2.2. Setting the Clock and Day 2.3. Operating in Non-Programmable Mode 2.4. Operating in Programmable Mode 2.5. Advanced Features 2.6. Troubleshooting 3. Installation Instructions 3.1. Remove Old Thermostat 3.2. Installing New Thermostat 3.3. Battery Location 3.4. Wiring and Configuration

Key Specifications

Type: Smart Wi-Fi thermostat for heating and cooling control
Compatibility:
- 85% of 24V HVAC systems: gas, electric, forced air, heat pump, radiant, oil, hot water, solar, geothermal
- Heating: 1-2 stages (W1, W2)
- Cooling: 1 stage (Y1)
- Heat pump with aux (O/B, AUX)
- Fan: (G)
- Power: (C, Rh, Rc); C-wire optional (Nest Power Connector if needed)
Power Source:
- Battery: Built-in rechargeable lithium-ion
- Voltage: 20-30 VAC
- Consumption: Less than 1 kWh/month
Electrical Rating:
- Works without C-wire in most cases
Temperature Range: Operating: 32°F to 104°F (0° to 40°C); Storage: -4°F to 113°F (-20° to 45°C)
Operating Conditions:
- Humidity: Up to 90% RH
- Altitude: Up to 10,000 ft
Dimensions: Display: 3.19" D x 0.97" H (105 g); Base: 2.83" D x 0.43" H (34 g); Assembled: 3.19" D x 1.14" H (139 g)
Features:
- 24-bit color LCD (320x320, 1.76" diameter)
- Sensors: Temperature, humidity, proximity, motion, ambient light, magnetic
- Wi-Fi: 802.11 a/b/g/n (2.4/5 GHz), Bluetooth LE
- Memory: 256 MB
- Energy Star certified
Thermostat Configuration Options:
- Max stages Heat/Cool: 2/1
- Nest app integration

Operation Instructions

Initial Setup

1. Download App: Install Nest app on iOS/Android, create account.
2. Power On: After installation, thermostat powers up.
3. Configure System:

Scan QR code or select model, connect to Wi-Fi.
Answer questions about system and home.
Run test; enable Auto-Schedule if desired.

Setting the Clock and Day

1. Syncs automatically via Wi-Fi.
2. Manual adjustment via app: Settings > Display > Clock.
3. Set format (12/24-hour), time zone.
4. Day auto-set from location services.

Operating in Non-Programmable Mode

1. Select Mode: Press ring toward wall, turn to Heat, Cool, Off, Eco.
2. Adjust Temperature: Turn ring to raise/lower setpoint.
3. Fan Control: Auto or On via app.
4. Manual Override: Turn ring for temporary change; resumes schedule.

Operating in Programmable Mode

1. Factory Schedule: Default Comfort, Eco, Sleep temps.
2. Custom Schedule:

Open Nest app > Thermostat > Schedule.
Set times/temps for periods.
Save; enable Auto-Schedule to learn habits.

3. Temporary Override: Turn ring.
4. Permanent Hold: Pause schedule in app.
5. Disable Programming: Set manual in app.

Advanced Features

1. Early-On: Pre-heats/cools to reach setpoint on time.
2. Safety Temperatures: Prevents extremes.
3. Energy Saving: Eco mode, Home Report for usage insights.
4. Remote Control: Via Nest app.
5. Voice: Compatible with Google Assistant, Alexa.

Troubleshooting

Won't Turn On: Check power, charge battery (blinking red light).
No Heat/Cool: Verify mode, setpoint; run app test.
Wi-Fi Issues: Restart, check signal; update app.

Installation Instructions

Warning: Turn off power at breaker. Use app for custom wiring; professional recommended if unsure.

Remove Old Thermostat

Switch off HVAC power (check multiple breakers).
Remove cover, take photo of wiring.
Remove jumper wires, label others (use provided stickers).
Disconnect wires, remove base; wrap wires to prevent falling.

Installing New Thermostat

App Guide: Start in Nest app for custom diagram.
Mark Base: Level and mark holes; use trim plate if needed.
Attach Base: Drill if hard surface, secure with screws.
Connect Wires: Insert per diagram; press connectors down.
Snap Display: Align and push until click.
Power On: Restore power; complete app setup.

Battery Location

Built-in rechargeable lithium-ion in display.
Charges from 24V AC; blinking red light if low.
No user replacement; wait to charge if needed.

Wiring and Configuration

Follow app diagram; strip 1/4", no polarity. Incompatible: high voltage, stranded wires.

Terminal	Description
R/Rh/Rc	Power (24V hot)
W1	Heat Stage 1
W2	Heat Stage 2
Y1	Cool Stage 1
G	Fan
O/B	Changeover
AUX	Aux heat
C	Common (optional)

Caution: Only connect labeled wires; configure in app.