Thlevel 20A 12V/24V Solar Charge Controller User Manual

1. Producte acabatview

The Thlevel 20A 12V/24V Solar Charge Controller is designed to manage the power flow from your solar panel to your battery, ensuring efficient charging and protecting the battery from overcharge and over-discharge. It features a clear LCD display for monitoring system status and adjustable parameters for various battery types and load requirements. This controller is suitable for home, commercial, and industrial solar power systems.

Figure 1: Thlevel 20A 12V/24V Solar Charge Controller front view.

Característiques principals:

• Corrent de càrrega: 20A; Sortida USB: 5V/2A max; Voltage: 12V/24V auto-identification.
• Protecció de seguretat integral: Built-in short-circuit protection, open-circuit protection, reverse connection protection, and overload protection.
• Advanced Charge Management: Features 3-level PWM charge management for optimal battery health.
• Paràmetres ajustables: Integrated industrial micro-controller allows for adjustable charge and discharge parameters, and configurable load operating modes.
• Dissipació de calor eficient: Dual MOS reverse current protection ensures low heat generation and high reliability.
• Interfície fàcil d'utilitzar: LCD screen displays real-time status and data, making setup and operation straightforward.

2. Installation and System Connection

Follow these steps for proper installation. Ensure all connections are secure and correct to prevent damage to the controller or other components. Always connect the battery first.

Figure 2: System Connection Diagram.

1. Connect Battery (1): Connect the battery to the charge controller first. Ensure correct polarity (+ to + and - to -). The controller will automatically detect 12V or 24V battery systems.
2. Connect Solar Panels (2): Connect the solar panel(s) to the charge controller. Again, observe correct polarity.
3. Connect DC Load (3 - Optional): Connect your DC loads (e.g., LED lights) to the controller's load terminals. Ensure correct polarity.
4. Connect Inverter (4 - Optional): If using an inverter for AC loads, connect it to the battery terminals. The inverter should not be connected directly to the load terminals of the controller.

Nota important: Connect in strict accordance with the sequence: 1. Battery, 2. Solar Panel, 3. Load. Disassembly should be in the reverse order to prevent damage.

Muntatge:

• Mount the controller on a vertical surface to allow for proper heat dissipation.
• Ensure adequate clearance around the controller for air circulation.
• Avoid mounting in direct sunlight, high temperatures, or areas prone to water exposure.

3. Funcionament i configuració

The controller features an LCD display and three buttons for navigation and parameter adjustment.

3.1. Interfície de pantalla LCD

Figure 3: LCD Display and Button Functions.

• Botó MENÚ: Short press to switch between display interfaces. Long press (3-5 seconds) to enter or exit parameter setting mode.
• Botó amunt: In parameter setting mode, press once to increase the parameter value.
• DOWN/ON/OFF Button: In parameter setting mode, press once to decrease the parameter value. In normal display mode, press to turn the load on or off.

The LCD displays various information including voltage, ampere-hour, load output status, battery status, and solar panel charging light indicators (On: Direct/Boost Charge; Slowly Flash: Float Charge).

3.2. Configuració dels paràmetres

To adjust parameters, long press the MENÚ button for 3-5 seconds to enter the setting interface. Use the UP i ABAIX buttons to modify values. Long press the MENÚ button again to save and exit, or long press ABAIX to restore default parameters.

Figure 4: Parameter Setting Flow.

The common adjustable parameters include:

• Float Voltage: El voltage at which the battery is maintained after full charge.
• Discharge Reconnect Voltage: El voltage at which the load will reconnect after low voltage desconnexió.
• Discharge Stop Voltage: El voltage at which the load will be disconnected to protect the battery from over-discharge.
• Mode de treball: Configures how the load operates (e.g., 24 hours, dusk to dawn, timed).
• Tipus de bateria: Select the battery type (e.g., B01 for GEL, B02 for Sealed, B03 for Flood). This controller is only applicable to lead-acid batteries (Open type, VRLA, GEL, etc.).

4. Manteniment

Un manteniment regular garanteix un rendiment òptim i una llarga vida útil del controlador de càrrega solar.

• Neteja: Mantingueu el controlador net i lliure de pols i brutícia. Feu servir un drap sec per netejar-lo.
• Connexions: Periodically check all wiring connections to ensure they are tight and free from corrosion. Loose connections can cause overheating and damage.
• Ventilació: Ensure that the ventilation openings are not blocked to allow for proper heat dissipation.
• Condicions ambientals: Verify that the controller is operating within its specified temperature and humidity ranges.
• Salut de la bateria: Superviseu l'estat i el volum de la bateriatage regularly. A healthy battery is crucial for the overall system performance.

5. Troubleshooting and Safety Protections

The Thlevel solar charge controller is equipped with multiple safety features to protect itself and your solar power system. Understanding these protections can help in basic troubleshooting.

Figure 5: Built-in Security Protections.

• Protecció contra curtcircuits: Automatically disconnects if a short circuit is detected in the load or solar panel circuit. Check wiring for shorts.
• Protecció de sobrecàrrega: Disconnects the load if the current exceeds the rated capacity (20A). Reduce the load or use a higher-rated controller.
• Protecció sobre corrent: Similar to overload, protects against excessive current flow.
• Protecció de sobrecàrrega: Stops charging the battery once it reaches the set overcharge voltage, preventing damage.
• Baix voltage Protecció: Disconnects the load when the battery voltage drops below the set under-voltage threshold, protecting the battery from deep discharge.
• Sobrevoltage Protecció: Protects the system from excessively high voltage entrades.
• Protecció de polaritat inversa: Protects the controller from damage if the battery or solar panel connections are reversed. However, always ensure correct polarity during installation.

Problemes comuns:

• Sense pantalla/Sense alimentació: Check battery connections and ensure the battery has sufficient charge.
• La bateria no es carrega: Verify solar panel connections, ensure panels are receiving sunlight, and check for any shading. Confirm battery type setting is correct.
• La càrrega no funciona: Check load connections, ensure the load is within the controller's current limits, and verify the load work mode settings. The battery might be too low (under-voltagprotecció electrònica activada).

6. Especificacions tècniques

Figura 6: Dimensions del producte.

7. Informació de seguretat

Please read and follow all safety instructions carefully before installation and operation.

• This controller is designed for 12V/24V lead-acid batteries only (GEL, Sealed, Flooded). Do not use with other battery types (e.g., Lithium-ion) unless explicitly stated by the manufacturer.
• Ensure all wiring is correctly polarized before connecting. Incorrect polarity can damage the controller and other components.
• Install the controller in a well-ventilated, dry, and cool environment, away from flammable materials and corrosive gases.
• No intenteu desmuntar ni reparar el controlador vosaltres mateixos. Demaneu el servei tècnic a personal qualificat.
• Keep children away from the solar power system components.
• Utilitzeu l'equip de protecció individual (EPI) adequat, com ara guants i ulleres de protecció durant la instal·lació.

8. Garantia i Suport

This product is manufactured by Thlevel. For warranty information or technical support, please refer to the retailer or contact Thlevel customer service directly. Keep your purchase receipt as proof of purchase.

While specific warranty details are not provided in this manual, most electronic devices come with a standard manufacturer's warranty covering defects in materials and workmanship under normal use.