1. Introduction
The wenzhi WZ-MK70 WiFi Thermostat Temperature Controller is a smart device designed to manage your home's heating system efficiently. It offers remote control via the Tuya/Smart Life app, voice control compatibility with Alexa and Google Home, real-time monitoring, and intuitive touch control. This manual provides essential information for the safe installation, operation, and maintenance of your thermostat.
2. Product Overview
The WZ-MK70 series includes three distinct models, each tailored for specific heating systems:
- WZ-MK70-GA: Designed for Water Heating systems (3A). This model does not include an external sensor.
- WZ-MK70-GB: Designed for Electric Floor Heating systems (16A). This model includes a 3-meter external sensor.
- WZ-MK70-GC: Designed for Gas Boiler systems (3A, Dry Contact). This model does not include an external sensor.
Key features of the WZ-MK70 thermostat include:
- App Remote Control
- Voice Control (Works with Amazon Alexa and Google Home)
- Real-time Temperature Monitoring
- Touch Control Interface
- Compatibility with Tuya / Smart Life App
3. Specifications
| Feature | Specification |
|---|---|
| Model Number | WZ-MK70 |
| Brand Name | wenzhi |
| Panel Material | Tempered Glass |
| Color Options | Black / White |
| Set Temperature Range | 5-60°C (Adjustable maximum temperature) |
| Resistive Load | 16A (GB model) / 3A (GA, GC models) |
| Control Accuracy | ±0.5°C |
| Shell Material | PC (Fireproof) |
| Control Methods | APP / Touch / Voice |
| Input AC | 95-240V |
| Mounting Type | Type 86 (Standard wall box size) |
| Certification | CE |
| Origin | Mainland China |
| High-concerned chemical | None |
Dimensions
- Front Panel: 86mm x 86mm
- Back Mounting: 50mm x 50mm
- Front Depth: 14mm
- Back Depth: 26mm
4. Installation
Important Safety Information: Always ensure the power supply is OFF before beginning any installation or maintenance work to prevent electric shock.
- Compatibility Check: Confirm that this product model (GA, GB, or GC) is suitable for your specific heating equipment (water heating, electric floor heating, or gas boiler) before proceeding.
- Mounting Plate Preparation: Slide the mounting plate upward to remove it from the thermostat unit.
- Secure Mounting Plate: Fix the mounting plate to the wall cassette using appropriate screws. Ensure the fastener is suitable for the product and wall.
- Wiring: Strictly follow the wiring diagram provided for your specific model (GA, GB, GC). Refer to Figure 4.1 for general installation steps and Figure 4.2 for detailed wiring diagrams.
- WZ-MK70-GA (Water Heating): Connect to water heating system.
- WZ-MK70-GB (Electric Floor Heating): Connect to electric floor heating system. Includes a 3-meter external sensor that must be installed.
- WZ-MK70-GC (Gas Boiler): Connect to gas boiler system using dry contact.
If using hard plastic wires, bend them to an appropriate angle in advance to avoid damage to the product.
- Attach Thermostat: After the mounting plate is secured and wiring is complete, buckle the thermostat product onto the mounting plate in the correct direction.
- Professional Installation: It is highly recommended to arrange for professional installation to ensure safety and proper functionality.
- Post-Installation Check: After installation, review this manual again to ensure normal and safe use. Keep this manual properly for future reference.
5. Operation
5.1 Display and Icon Description
The thermostat features a clear digital display and intuitive touch buttons for easy control. Refer to Figure 5.1 for an explanation of the various icons and display elements:
- Week/Time Icon: Indicates the current day of the week and time.
- Indoor Temperature: Shows the current room temperature.
- Heating Icon: Illuminates when the heating system is active.
- Mode Icon: Displays the current operating mode (e.g., manual, automatic).
- Time Display: Shows the current time.
- Locking Icon: Indicates if the thermostat controls are locked.
- Time Icon: May indicate a timer function or schedule is active.
5.2 Control Methods
- Touch Control: Use the touch-sensitive buttons on the thermostat's front panel to adjust settings, change modes, and set schedules.
- App Remote Control: Download the Tuya or Smart Life app on your smartphone. Follow the in-app instructions to connect your thermostat to your home Wi-Fi network. Once connected, you can remotely control temperature, set schedules, and monitor your heating system from anywhere.
- Voice Control: Integrate your thermostat with Amazon Alexa or Google Home. After linking the Tuya/Smart Life app with your voice assistant, you can use voice commands to adjust the temperature or inquire about the current status.
6. Maintenance
To ensure optimal performance and longevity of your wenzhi WZ-MK70 thermostat, follow these simple maintenance guidelines:
- Cleaning: Gently wipe the thermostat's screen and body with a soft, dry cloth. Avoid using abrasive cleaners, solvents, or chemical sprays, as these can damage the surface or internal components.
- Dust Removal: Periodically remove any dust accumulation around the thermostat to ensure proper airflow and sensor accuracy.
- Power Cycle: If the thermostat becomes unresponsive, try turning off the power to the heating system at the circuit breaker for a few minutes, then restore power.
- Software Updates: Regularly check the Tuya/Smart Life app for any available firmware updates for your thermostat to ensure you have the latest features and bug fixes.
7. Troubleshooting
If you encounter issues with your wenzhi WZ-MK70 thermostat, consider the following common troubleshooting steps:
- No Power/Display Off: Check the circuit breaker for your heating system. Ensure the thermostat is properly installed and connected to the power supply.
- Incorrect Temperature Reading: Ensure the thermostat's sensors are not obstructed or exposed to direct drafts or heat sources. For GB models, verify the external sensor is correctly placed.
- Heating Not Activating: Check the thermostat's mode settings (ensure it's in heating mode). Verify the set temperature is above the current room temperature. Check the wiring connections.
- Wi-Fi Connectivity Issues: Ensure your home Wi-Fi network is active and the signal strength is adequate at the thermostat's location. Try restarting your Wi-Fi router. Follow the app's instructions for re-pairing if necessary.
- App Control Problems: Ensure your smartphone has an active internet connection. Check if the Tuya/Smart Life app is updated to the latest version.
- Voice Control Not Working: Verify that your thermostat is correctly linked to Amazon Alexa or Google Home through the Tuya/Smart Life app. Check your voice assistant's settings and internet connection.
If these steps do not resolve the issue, or if you experience any equipment failure, please contact the after-sales service for assistance. Do not attempt to repair the device yourself.
8. User Tips
- Optimal Sensor Placement (GB Model): For electric floor heating, ensure the external sensor is correctly embedded in the floor to accurately measure floor temperature and prevent overheating.
- Scheduling for Efficiency: Utilize the app's scheduling features to program heating cycles that match your daily routine, optimizing energy consumption and comfort.
- Voice Command Convenience: Familiarize yourself with common voice commands for Alexa or Google Home to quickly adjust temperatures without needing to touch the thermostat or your phone.
- Screen Lock Feature: Use the screen lock function to prevent accidental changes to settings, especially useful in households with children.
9. Warranty and Support
For any product-related inquiries, technical support, or warranty claims, please contact the seller or manufacturer directly. Refer to your purchase documentation for specific contact information and warranty terms.
