Nest S3003LWES Smoke Alarm Operation Manual

The Nest S3003LWES (Nest Protect, 2nd Gen, White, Extended) is a smart smoke and carbon monoxide alarm with advanced multi-sensor detection, including photoelectric smoke, electrochemical CO, and enhanced humidity/light sensors. It provides voice alerts, wireless interconnect, Pathlight, and app notifications for superior safety. Supports 120V wired installation with battery backup. Below are the key specifications and operation instructions.

Key Specifications

• Type: Smart photoelectric smoke, electrochemical CO, and humidity alarm with extended wireless interconnect
• Compatibility:
  • 120V AC hardwired with 3 AA battery backup
  • Extended wireless interconnect (up to 100 ft with clear path)
  • Wi-Fi 802.11b/g/n (2.4 GHz) for app and voice integration
  • Compatible with Nest ecosystem (thermostats, cams)
• Power Source:
  • 120V AC ~ 60 Hz; Backup: 3 AA Energizer Ultimate Lithium batteries
  • Battery life: Up to 7 years in standby
• Electrical Rating:
  • UL 217 (smoke), UL 2034 (CO) certified
  • Extended interconnect: Up to 32 units
• Temperature Range: Operating: 32°F to 104°F (0°C to 40°C); Humidity: 20% to 95% RH
• Operating Conditions:
  • Indoor residential/commercial use
  • Lifetime: 10 years with self-expiration alert
• Dimensions: 5.3" diameter x 1.57" depth; Weight: 14.2 oz (with batteries)
• Features:
  • Voice alerts with room-specific names
  • Enhanced Pathlight with color options
  • Heads-Up and Night Guard modes
  • Advanced humidity/light sensors for false alarm reduction
  • Auto self-test and remote silencing
• Alarm Configuration Options:
  • Multi-alarm networks with extended range
  • App-customizable alerts and integrations

Operation Instructions

Initial Setup

1. Install Hardware: Follow Section 3 for wiring.
2. App Integration: Download Nest app, sign in.
3. Configure System:

• Scan QR code, connect to Wi-Fi for extended range.
• Assign room names, enable interconnect for multi-unit.
• Run extended test; calibrate sensors.

Setting the Clock and Day

1. Auto-syncs via Wi-Fi.
2. Manual: App > Settings > Device > Time Zone.
3. Configure format, DST auto-adjust.
4. Essential for timed Night Guard and maintenance.

Operating in Non-Programmable Mode

1. Continuous Mode: 24/7 monitoring with extended sensitivity.
2. Alert Handling: Voice: "Alert! Smoke in living room."
3. Hush: Press button or app for safe silence.
4. Test: Double-press button; app logs results.

Operating in Programmable Mode

1. Default Schedule: Auto-detection with weekly self-tests.
2. Custom Setup:

• App: Notifications for smoke/CO, battery, end-of-life.
• Schedule Pathlight, Night Guard activation times.
• Integrate with smart home routines.

3. Temporary Override: Remote hush via app.
4. Permanent Settings: Adjust sensor thresholds in app.
5. Disable: Offline mode for standalone operation.

Advanced Features

1. Extended Heads-Up: Progressive alerts with app escalation.
2. Pathlight Pro: Custom colors and brightness.
3. Night Guard: 24-hour monitoring with reduced false alarms.
4. Smart Interconnect: Prioritizes alerts by room.
5. Ecosystem Link: Triggers lights/cams on alert.

Troubleshooting

• Persistent Chirp: Replace batteries, check wiring.
  
• Delayed Alerts: Verify Wi-Fi, reposition for range.
  
• False Positives: Clean unit, recalibrate humidity.
  
• No App Sync: Restart, update firmware.

Installation Instructions

Warning: Disconnect power. Install per NFPA 72: Ceilings in rooms, every 10 years replacement.

Remove Old Alarm

• Power off at breaker.
• Twist counterclockwise to detach.
• Disconnect wires, cap interconnect.

Installing New Alarm

1. Wire connector: Black/hot, white/neutral, interconnect/red.
2. Mount backplate to box.
3. Insert batteries, plug connector.
4. Twist on until secure.
5. Power on, app test.

Battery Location

• 3 AA in pull-out tray at back.
• Align + ends; replace on chirp.

Wiring and Configuration

120V AC standard; extended interconnect for larger homes.

Wire	Description
Black	Hot (120V)
White	Neutral
Red	Interconnect
Ground	Bare copper

Caution: App for network config and sensor calibration.