1. Introducció
The Y&H 300W Grid Tie Micro Inverter is a compact unit designed to convert direct current (DC) power from solar panels directly into alternating current (AC) power. This AC power can then be used to supply household appliances and connect to the electrical grid. The inverter's AC output is synchronized and in phase with the utility grid, ensuring seamless integration.
This inverter utilizes Maximum Power Point Tracking (MPPT) technology, achieving an efficiency of over 98%. The peak conversion rate is approximately 80%. When calculating the required solar panel power, consider an approximate 80% conversion rate for both the solar panel and the inverter. For example, to achieve 150W output from the inverter, connect it to a solar panel of approximately 234W (234W * 0.8 * 0.8 = 149W). The solar panel power must not exceed 300W.
2. Informació de seguretat
- Read all instructions and warnings before installation and operation.
- La instal·lació ha de ser realitzada per personal qualificat.
- Assegureu-vos que el Vmp (vol.) del panell solartage at maximum power) is within the MPPT range of 24-40V for optimal efficiency. Using 12V panels or operating in low sunlight conditions (below 18V) can lead to unstable inverter operation and potential damage.
- The solar panel power connected to this inverter must not exceed 300W.
- This Micro Grid Tie Inverter is not designed to work with batteries.
- The inverter generates heat during operation. Its aluminum alloy casing is designed for heat dissipation. It features overheat protection, which will automatically reduce output or stop operation if temperatures become too high. The unit will restart after cooling.
- Install the inverter in a well-ventilated, dry, and cool location to prevent overheating and ensure longevity.
3. Característiques del producte
- Grid Tie Inverter with MPPT Range 24-40V.
- Panell solar recomanat Voltage: Vmp 30-39V; Voc 38-46V.
- Maximum solar panel power: 300W.
- Certificat CE.
- High efficiency (over 98% with MPPT technology).
- Pure Sine Wave output.
4. Contingut del paquet
En obrir el paquet, comproveu que tots els elements hi siguin presents i que no estiguin danyats:
- 1x Y&H Grid Tie Micro Inverter (300W)
- 1x AC Cable (30CM)
- 1x Manual d'usuari en anglès
5. Configuració i instal·lació
5.1 Basic Structure and Dimensions
Familiarize yourself with the inverter's components and physical dimensions before installation.
Image: Basic structure of the Y&H 300W Grid Tie Micro Inverter, highlighting its components and connection points.
Image: Detailed dimensions of the inverter unit in millimeters.
5.2 Esquemes de cablejat
Follow the appropriate wiring diagram for your specific grid configuration. Ensure all connections are secure and comply with local electrical codes.
Image: Wiring diagram for 120/230VAC Single Phase grid connection.
Image: Wiring diagram for 230VAC 2-Phase (208/240V) grid connection.
Image: Wiring diagram for 120VAC 3-Phase (208/240V) grid connection.
5.3 Installation Environment Guidelines
Proper installation environment is crucial for the inverter's performance and lifespan.
Image: Visual guidelines for inverter installation environment.
- Eviteu la llum solar directa: Install the inverter in a shaded area to prevent excessive temperatures.
- Eviteu la pluja: Ensure the installation location protects the inverter from rain or any other liquid exposure.
- Assegurar la ventilació: The inverter requires a well-ventilated environment to facilitate proper heat dissipation.
Image: Comparison of improper and proper inverter installation positions.
Proper Installation Position: Install the inverter underneath the PV panel where it will not be exposed to water seepage, dripping, or direct sunlight. Improper installation in an open space with water seepage and dripping, exposed to the sun, will void the warranty.
5.4 Passos de connexió
A simplified connection diagram is provided below for reference.
Image: Simplified diagram illustrating the connection from solar panels to the inverter and then to the home grid.
- Connect the DC output cables from your solar panel(s) to the PV input connectors on the micro inverter. Ensure correct polarity.
- Connect the AC output cable from the micro inverter to the provided 30CM AC cable.
- Plug the AC cable into a standard electrical outlet in your home, connecting it to the utility grid.
- Verifiqueu que totes les connexions siguin segures abans d'encendre el sistema.
6. Instruccions de funcionament
Once properly installed and connected, the Y&H 300W Grid Tie Micro Inverter will automatically begin converting DC power from your solar panels into AC power and feeding it into your home's electrical grid. The inverter's status indicator light will provide feedback on its operation.
- Funcionament automàtic: The inverter is designed for automatic operation. It will start converting power when sufficient sunlight is available and synchronize with the grid.
- Grid Synchronization: The inverter will only operate when it detects a stable utility grid connection. In the event of a grid outage, the inverter will automatically shut down for safety (anti-islanding protection).
- Seguiment: While this model does not include advanced monitoring features, you can observe the status indicator for basic operational status.
7. Manteniment
Regular maintenance helps ensure the longevity and optimal performance of your micro inverter.
- Neteja: Periodically clean the exterior of the inverter to remove dust and debris. Ensure the cooling fins are clear for proper heat dissipation. Use a dry, soft cloth. Do not use liquid cleaners.
- Comprovacions de connexió: Annually inspect all electrical connections (DC input from solar panels, AC output to grid) to ensure they are tight and free from corrosion.
- Ventilació: Regularly check that the installation area remains well-ventilated and free from obstructions that could impede airflow around the inverter.
- Condicions ambientals: Ensure the inverter remains protected from direct sunlight and moisture as per installation guidelines.
8. Solució De Problemes
If you encounter issues with your Y&H Micro Inverter, refer to the following common problems and solutions:
| Problema | Causa possible | Solució |
|---|---|---|
| Inverter not producing power / Status indicator off | No DC input from solar panels; Insufficient sunlight; No AC grid connection; Overheat protection activated. | Check solar panel connections and sunlight levels. Verify AC cable is securely plugged into the grid. Allow inverter to cool down if hot. |
| Sortida de baixa potència | Insufficient sunlight; Solar panel Vmp outside MPPT range; Dirty solar panels; Overheat protection reducing output. | Ensure optimal sunlight exposure. Verify solar panel specifications match inverter requirements. Clean solar panels. Ensure proper ventilation for the inverter. |
| Inverter repeatedly restarting | Unstable DC input voltage (e.g., from 12V panels or very low light); Grid instability. | Ensure solar panel Vmp is consistently within 24-40V. Consult a qualified electrician to check grid stability. |
| Inverter is hot to the touch | Normal operation heat; Poor ventilation; Direct sunlight exposure. | Ensure the inverter is in a well-ventilated, cool, and shaded area. This is normal, but excessive heat can trigger protection. |
Si el problema persisteix després d'intentar aquestes solucions, poseu-vos en contacte amb l'atenció al client.
9. Especificacions
| Característica | Especificació |
|---|---|
| Número de model | GMI-300W-220V-IT |
| Dimensions del producte (L x A x A) | 25 x 9 x 5 cm |
| Pes | 550 grams |
| Volum d'entrada DCtage Rang | 18V-50V |
| MPPT Voltage Rang | 24V-40V |
| Vmp de panells solars recomanats | 30-39V |
| COV recomanat per a panells solars | 38-46V |
| Max Solar Panel Power | 300W |
| Vol. De sortida de CAtage | 220 V |
| Forma d'ona de sortida de CA. | Onda senyal pura |
| Efficiency (MPPT) | >98% |
| Peak Conversion Efficiency | 80% |
| Certificacions | CE |
| País d'origen | Xina |
10. Garantia i Suport
Y&H provides a 12 mesos de garantia for this product, covering manufacturing defects and malfunctions under normal use. Additionally, a Devolució gratuïta de 30 dies policy is offered.
For any questions or assistance during use, please do not hesitate to contact Y&H customer support. Please have your model number (GMI-300W-220V-IT) and purchase details ready when contacting support.
