1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your EVTSCAN Digital Thermoregulator. This device is designed to precisely control heating equipment, such as wall-mounted boilers and gas boilers, ensuring a stable and energy-efficient temperature environment. Please read this manual thoroughly before installation and use to ensure proper function and safety.
2. Safety Information
Always observe the following safety precautions to prevent damage to the device or personal injury:
- Ensure the power supply is disconnected before installation or maintenance.
- Installation should be performed by a qualified professional if you are unsure about electrical wiring.
- Do not expose the device to water or excessive humidity.
- Use only the specified battery type (2 AA batteries) and ensure correct polarity.
- Keep the device away from flammable materials.
3. Product Overview
The EVTSCAN Digital Thermoregulator features a clear LCD display for easy monitoring and a simple interface for temperature control. Its compact design allows for discreet integration into your living space.
Figure 3.1: Front view of the Digital Thermoregulator. The LCD screen displays current settings and room temperature, with a rotary knob below for adjustments.
Key Components:
- LCD Display: Shows set temperature, room temperature, time, and operational icons.
- Control Knob/Button: Used for navigating menus and adjusting settings.
- Battery Compartment: Located on the rear or side for 2 AA batteries.
- Wiring Terminals: For connection to the heating system.
4. Specifications
| Feature | Specification |
|---|---|
| Model | EVTSCANok0g9ct2zq |
| Power Mode | 2 AA batteries (not included) |
| Screen Accuracy | 0.5 ℃ |
| Probe Sensor | NTC (10k) 1% |
| Contact Capacity | Greater than 30-230 V DC working voltage, lower current. Reference: 5 A 30 V (HF relay) or 2 A 30 V (NEC relay) |
| Temperature Display Range | 1 to 40 ℃ |
| Default Temperature Adjustment Range | 5 to 35 ℃ |
| Operating Temperature Range | 0 to 50 ℃ |
| Running Program | Set once a week |
| Output | Switching relay |
| Material | Flame-retardant polycarbonate |
| Weight | 170 g |
5. Setup and Installation
The EVTSCAN Digital Thermoregulator is designed for simple installation. Follow these steps carefully:
5.1. Unpacking and Inspection
Carefully remove all components from the packaging. Verify that all items listed in the package contents are present and undamaged.
- 1 Digital Temperature Controller
- 2 Screws
5.2. Battery Installation
The device requires 2 AA batteries for operation. These are not included in the package.
- Locate the battery compartment on the back of the thermoregulator.
- Open the battery compartment cover.
- Insert 2 AA batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
Figure 5.1: Angled view of the thermoregulator, illustrating its compact size and potential location for battery access or mounting points.
5.3. Mounting and Wiring
The thermoregulator is designed for wall mounting. Ensure the power to your heating system is turned off before proceeding with wiring.
- Choose a suitable location on an interior wall, away from direct sunlight, drafts, or heat sources that could affect temperature readings.
- Mount the backplate (if detachable) to the wall using the provided screws.
- Connect the thermoregulator to your boiler or heating system according to the wiring diagram provided with your boiler and the thermoregulator's terminal markings. This typically involves connecting the switching relay output to the boiler's control input.
- Secure the thermoregulator onto the mounted backplate.
Note: For wiring, consult a qualified electrician if you are unfamiliar with electrical installations.
6. Operating Instructions
The EVTSCAN Digital Thermoregulator uses a microcomputer control technology to maintain your desired temperature efficiently.
6.1. Powering On and Initial Display
Once batteries are installed, the LCD display will illuminate, showing the current room temperature, set temperature, and time.
Figure 6.1: Detailed view of the LCD display. It shows the set temperature (SET), room temperature (ROOM), a lock icon, a program icon (P2), a signal icon, a flame icon indicating heating, and the current time.
6.2. Setting the Temperature
To adjust the desired temperature:
- Rotate the control knob to increase or decrease the set temperature. The "SET" value on the display will change accordingly.
- The device will automatically activate or deactivate the heating system to maintain the set temperature within the range of 1 to 40 ℃. The default adjustment range is 5 to 35 ℃.
6.3. Programming Weekly Schedule
The thermoregulator supports a weekly programming schedule. This allows you to set different temperatures for various times of the day across the week.
- Press and hold the control knob (or a designated button, if available) to enter programming mode.
- Use the control knob to navigate through days of the week and time slots.
- Adjust the desired temperature for each programmed period.
- Confirm your settings to save the weekly program. The device will then operate according to this schedule.
6.4. Understanding Display Icons
- SET: Indicates the target temperature you have set.
- ROOM: Displays the current ambient room temperature.
- Flame Icon: Illuminates when the heating system is active.
- Lock Icon: May indicate a keypad lock feature to prevent accidental changes.
- P1/P2 Icon: Indicates the current program mode (e.g., P1 for comfort, P2 for economy, or specific weekly program segments).
- Signal Icon: May indicate wireless communication status if applicable.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your thermoregulator.
- Cleaning: Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Battery Replacement: Replace batteries when the low battery indicator appears on the display. Always replace both batteries simultaneously with new AA batteries.
- Sensor Area: Ensure the temperature sensor area (usually a small vent on the device) is free from dust and obstructions for accurate readings.
8. Troubleshooting
If you encounter issues with your EVTSCAN Digital Thermoregulator, refer to the following common problems and solutions:
- Display is blank:
- Check if batteries are correctly installed.
- Replace old batteries with new ones.
- Heating system not responding:
- Ensure the thermoregulator is powered on and the flame icon is displayed when heating is expected.
- Verify wiring connections to the boiler are secure and correct.
- Check the boiler's power supply and status.
- Ensure the set temperature is higher than the current room temperature.
- Inaccurate temperature readings:
- Ensure the device is not exposed to direct sunlight, drafts, or heat sources.
- Clean any dust or debris from the sensor area.
- Cannot change settings:
- Check if the lock icon is displayed. If so, refer to the operating instructions to unlock the keypad.
If the problem persists, contact customer support.
9. Warranty and Support
Specific warranty information for this product is not provided in the available data. Please refer to the product packaging or the retailer's website for warranty details.
For technical support or further assistance, please contact EVTSCAN customer service through their official channels or the retailer from whom you purchased the product.
You can visit the EVTSCAN store on Amazon for more information: EVTSCAN Store