1. 서론
The Lennox S40 Smart Thermostat is designed to provide precise control over your home's heating, ventilation, and air conditioning (HVAC) system. This advanced thermostat integrates with Lennox communicating products to automatically configure and optimize your system for enhanced comfort, performance, and energy efficiency.
Key features include a user-friendly touchscreen display, programmable schedules, geo-fencing capabilities, remote access via the Lennox Smart app, and compatibility with smart home ecosystems like Alexa and Google Assistant. The S40 also supports advanced accessories such as the Smart Room Sensor, Air Quality Monitor, and Wireless Extender to create a comprehensive home comfort solution.

Figure 1: Lennox S40 Smart Thermostat
The Lennox S40 Smart Thermostat features a sleek design with a large, intuitive touchscreen display for easy interaction and system management.
2. 설정 및 설치
Proper installation is crucial for the optimal performance and warranty validity of your Lennox S40 Smart Thermostat. It is strongly recommended to hire a certified HVAC installer for installation. Failure to use a professional HVAC installer may void the product warranty.
2.1 호환성
- 대부분의 24VAC 난방기, 에어컨, 공기 조절기 및 열 펌프와 호환됩니다(최대 3초).tag열과 2초의 estages of cooling).
- Designed for Lennox communicating HVAC equipment.
- Supports conventional HVAC systems with the optional Equipment Interface Module (EIM).
- Requires 4-wire standard thermostat wiring. Use shielded thermostat cable to prevent noise interference.
2.2 설치 단계 (전문가 설치를 권장합니다)
- 설치: Secure the provided wall plate using the mounting kit (screws, anchors).
- 배선: Connect the 4-wire standard thermostat wiring to the appropriate terminals on the wall plate.
- 온도 조절기 부착 장치: Attach the S40 thermostat to the mounted wall plate.
- 초기 구성: Use the Lennox Smart Technician app for quick system configuration. The app assists with model and serial number recognition for hassle-free setup.
- 네트워크 연결 : Connect the thermostat to your home Wi-Fi network for remote access and smart features.

Figure 2: Lennox S40 Smart Thermostat with dimensions (2.5"D x 7"W x 4.5"H)
Ensure adequate space for installation, considering the thermostat's dimensions.
3. 온도 조절기 작동
The Lennox S40 features a 7-inch high-definition capacitive touchscreen display (1280 x 800 resolution, 16:9 screen ratio, 72dpi) for intuitive control of your home comfort system.
3.1 터치스크린 인터페이스
Navigate through menus and adjust settings directly on the touchscreen. The interface displays current temperature, humidity, system status, and weather information.

Figure 3: Annotated Lennox S40 Thermostat Display
This image highlights key areas of the S40 display, including time and date, menu access, temperature adjustments, system status, indoor humidity, and weather data.
3.2 스마트 기능
- 다양한 일정: Create and customize various heating and cooling schedules to match your daily routine.
- 원터치 외출 모드: Quickly activate an energy-saving "Away" setting with a single touch.
- Smart Away (Geo-Fencing): Utilizes geo-fencing technology to automatically adjust temperature settings based on your proximity to home, optimizing energy usage.
- Weather-On-Demand: Access live weather data and a seven-day forecast directly from the thermostat screen.
- Smart Zoning System (iHarmony): If equipped with a Smart Zoning System, the S40 allows for whole-home zoning control, managing comfort in different areas of your home.
- Smart Room Sensor Integration: Enhance temperature balance across rooms by integrating Smart Room Sensors.
- Smart Air Quality Monitor Integration: Detects air pollutants and triggers air cleaning on demand when connected to a Lennox Smart Air Quality Monitor.
- 무선 확장기: The Lennox Wireless Extender can nearly double the connection coverage area for your communicating equipment, ensuring reliable operation.
3.3 원격 접속 및 음성 제어
- Lennox Smart App: Control your thermostat remotely from anywhere using the Lennox Smart app on your smartphone or tablet.
- 음성 지원: The S40 is compatible with Amazon Alexa and Google Assistant for convenient voice control.
4. 유지관리
The Lennox S40 Smart Thermostat helps you maintain your HVAC system's efficiency and longevity through various alerts and diagnostic tools.
- System Warnings and Maintenance Alerts: The intuitive interface displays alerts for system issues or routine maintenance reminders (e.g., filter changes).
- Run Tests: Perform diagnostic tests on the complete system or individual components directly from the thermostat.
- Service Dashboard: Real-time monitoring of installed smart systems is available through the Service Dashboard, providing insights into operational parameters.
- Remote Diagnostics Sharing: If your system goes out of tune, the S40 can automatically alert you and allow you to remotely share diagnostic information with your local Lennox dealer for efficient service.
- Air Quality Management: When paired with a Smart Air Quality Monitor, the system can trigger air cleaning cycles based on detected pollutants. Fan options can also be configured to ensure minimum air circulation for improved air quality.
5. 문제 해결
If you encounter issues with your Lennox S40 Smart Thermostat, refer to the following common troubleshooting tips. For complex problems, contact a certified HVAC professional.
- 전원이 들어오지 않음/화면이 비어 있음:
- Check your circuit breaker for the HVAC system.
- Ensure the thermostat is properly seated on its wall plate.
- Verify 24VAC power supply to the thermostat.
- 잘못된 온도 측정값:
- 온도 조절 장치가 직사광선, 통풍구 또는 열원에 노출되지 않도록 하세요.
- If using Smart Room Sensors, verify they are placed correctly and communicating with the S40.
- Wi-Fi 연결 문제:
- 집 와이파이 네트워크가 활성화되어 있고 범위 내에 있는지 확인하세요.
- 와이파이 공유기와 온도 조절기를 재시작하세요.
- Verify correct Wi-Fi password entry during setup.
- Consider using a Lennox Wireless Extender if signal strength is weak.
- 시스템이 설정에 응답하지 않음:
- Check system status messages on the thermostat display.
- Ensure the system mode (Heat, Cool, Auto, Off) is correctly selected.
- If connected to a communicating Lennox system, verify all components are powered and communicating.
- Screen Brightness Issues:
- Adjust screen brightness settings in the thermostat's menu.
- If automatic brightness is enabled, try disabling it and setting a manual level.
For further assistance, the Lennox Smart Technician app can provide diagnostic information, or you can contact your local Lennox dealer.
6. 사양
| 특징 | 세부 사항 |
|---|---|
| 상표 | 레녹스 |
| 모델명 | 레녹스 S40 (22V24) |
| 제품 치수 | 2.5인치 깊이 x 7인치 너비 x 4.5인치 높이 |
| 컨트롤러 유형 | 아마존 알렉사, 애플 홈킷, 컨트롤4, 구글 어시스턴트 |
| 특별 기능 | 자동 전환, 팬 제어, 필터 교체 표시기, 지오펜스 기술, 프로그래밍 가능 |
| 색상 | 검은색 |
| 특정 용도 | 에어컨, 난방기, 히트펌프 |
| 온도 제어 유형 | 난방, 냉방 |
| 연결 기술 | 와이파이 |
| 포함된 구성 요소 | 7" HD Display with 4-wire Connection, Mounting Kit (Screws, Anchors), Wall Plate |
| 전원 | 24V 교류 |
| 권tage | 22 Volts (Nominal 24V AC) |
| 디스플레이 유형 | LCD, Capacitive Touchscreen |
| 화면 크기 | 7 인치 |
| 화면 해상도 | 1280 x 800 |
| 제어 방법 | 앱, 리모컨, 터치 |
| 장착 유형 | 벽걸이형 |
| 백라이트 | 예 |
| 품목 무게 | 1.68파운드 |
7. 보증 정보
The Lennox S40 Smart Thermostat comes with a 10년 보증 covering manufacturing defects or malfunctions.
중요 보증 조건: To maintain the validity of this warranty, it is mandatory to have the thermostat installed by a certified HVAC installer. Installation by a non-professional HVAC installer may void the warranty. Products not professionally installed are also non-returnable and non-refundable.
Instructions for warranty registration are included in the product packaging.
8. 지원 및 연락처
For technical support, service, or further inquiries regarding your Lennox S40 Smart Thermostat, please contact your local authorized Lennox dealer. They are equipped to provide expert assistance, diagnostics, and maintenance services for your system.
You can also utilize the Lennox Smart app for remote monitoring and to share diagnostic information with your dealer.
9. 비디오 자료
9.1 Lennox Smart Thermostat S40 (22V24) Overview
영상 1: 공식 종료view of the Lennox S40 Smart Thermostat, highlighting its features and benefits for home comfort and system control.





