1. Product Overview
The YoLink Thermostat 2 is an advanced smart thermostat designed for precise temperature control in both residential and commercial environments. Featuring dual-stage heating and cooling, heat pump support, and integration with external sensors, it ensures optimal comfort and energy efficiency. Powered by YoLink's LoRa technology, it offers an industry-leading wireless range for reliable connectivity across large spaces. Remote management is available via the YoLink app, with voice control options through Alexa and Google Home.
2. Key Features
- Precise Dual-Stage Comfort: Offers finer temperature control with dual-stage heating and cooling for ideal comfort.
- Heat Pump & Sensor Integration: Seamlessly works with heat pumps and supports up to two YS8007-UC sensors for real-time climate monitoring.
- Industry-Leading LoRa Range: Utilizes YoLink’s LoRa technology for the longest wireless range (up to 1/4 mile) suitable for large properties.
- Smart Remote Access: Control temperature, modes, and schedules from anywhere using the intuitive YoLink app.
- Energy-Saving ECO Mode: Automatically optimizes settings to reduce power consumption while maintaining comfort.
- Robust YoLink Ecosystem: Integrates with 80+ YoLink devices (Hub required, sold separately).
- Voice Control & Easy Setup: Compatible with Alexa, Google Home, IFTTT, and Home Assistant; simple DIY installation for 24VAC systems with C-wire.
3. Package Contents
- YoLink Thermostat 2 (Model YS4004)
- Mounting Hardware
- Temperature Sensor (internal)
- Humidity Sensor (internal)
Note: A YoLink Hub is required for operation and is sold separately.
4. Setup and Installation
4.1 Pre-installation Requirements
- A 24VAC HVAC system with a C-wire is required.
- A YoLink Hub (sold separately) is necessary for the thermostat to function and connect to the YoLink app.
- Download the YoLink app from your device's app store.
4.2 Physical Installation
The YoLink Thermostat 2 is designed for simple DIY installation. Follow the wiring diagrams provided in the quick start guide for your specific HVAC system type (e.g., conventional, heat pump). Ensure power is off before beginning installation.
Image: Rear view of the YoLink Thermostat 2 showing the wiring terminals and mounting plate. This illustrates the simple installation process for 24VAC systems.
4.3 App Setup and Device Pairing
Once physically installed, open the YoLink app. Use the app's pairing function (often a QR code scan) to add your Thermostat 2 to your YoLink system. You can assign it to a specific room and configure initial settings.
Image: A smartphone screen displaying the YoLink app's device pairing interface, showing options to pair with local or external sensors.
4.4 Integrating External Sensors
The Thermostat 2 supports up to two external YS8007-UC sensors. These can be paired via the app to provide temperature and humidity readings from different areas, allowing for more accurate climate control by setting an external sensor as the master temperature source.
Image: The YoLink Thermostat 2 mounted on a wall, with two external temperature and humidity sensors shown nearby, illustrating their integration for enhanced climate monitoring.
5. Operation
5.1 Basic Controls and Modes
Adjust temperature, select operating modes (heating, cooling, auto, off), and control the fan directly from the thermostat's LCD display or remotely via the YoLink app.
Image: The YoLink Thermostat 2 on a wall, with a smartphone displaying the app interface for adjusting temperature and modes, including a 'DR Event' notification.
5.2 Smart Remote Access
The YoLink app allows you to monitor and control your thermostat from any location. Adjust settings, check current temperatures, and manage schedules to ensure your home or business climate is always comfortable.
Image: A hand interacting with the YoLink app on a smartphone, showing the interface for remote temperature and mode control of the thermostat.
5.3 Smart Scheduling and Automation
Set daily schedules or create custom automations to automatically adjust heating and cooling based on time of day or your weekly routine. This feature optimizes energy usage and fits your lifestyle.
Image: A smartphone screen displaying the YoLink app's scheduling interface, allowing users to set daily heating and cooling routines.
5.4 Energy-Saving ECO Mode
Activate ECO Mode to automatically optimize settings for energy conservation, helping to reduce power bills without compromising comfort. This mode intelligently modifies temperature settings to save energy.
Image: A smartphone screen displaying the YoLink app's ECO Mode settings, allowing users to adjust temperature differentials for energy saving.
5.5 Voice Control and Third-Party Integration
The YoLink Thermostat 2 integrates with popular voice assistants like Amazon Alexa and Google Home for hands-free operation. It also supports IFTTT and Home Assistant for advanced custom automations and enhanced control within your smart home ecosystem.
6. Maintenance
6.1 General Care
Clean the thermostat's display and exterior with a soft, dry cloth. Avoid using abrasive cleaners or solvents. Ensure the device is free from dust and debris to maintain optimal performance.
6.2 Durability
The YoLink Thermostat 2 is engineered with enhanced molding for exceptional durability and long-lasting performance in various environments, from residential homes to commercial settings.
Image: Rear view of the YoLink Thermostat 2 showing the wiring terminals and mounting plate. This illustrates the simple installation process for 24VAC systems.
7. Troubleshooting
7.1 Connectivity Issues
If the thermostat experiences connectivity problems (e.g.,
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