1. Introdución
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your Mastervolt Mass Combi Pro 24/3500-100 Power Inverter / Charger. Please read this manual thoroughly before using the device to ensure proper function and to prevent damage or injury. Keep this manual in a safe place for future reference.
2. Instrucións de seguridade
Observe sempre as seguintes precaucións de seguridade para evitar lesións persoais ou danos ao equipo:
- Persoal cualificado: A instalación e o mantemento só deben ser realizados por persoal cualificado que estea familiarizado cos sistemas eléctricos e os procedementos de seguridade.
- Risco de descarga eléctrica: Este dispositivo funciona con alto volumetages. Do not open the casing or attempt repairs unless specifically instructed by Mastervolt. Disconnect all power sources (AC and DC) before servicing.
- Ventilación: Asegúrese de que haxa unha ventilación axeitada arredor da unidade para evitar o sobrequecemento. Non bloquee as aberturas de ventilación.
- Ambiente: Do not expose the unit to water, excessive moisture, or flammable liquids. Install in a dry, protected environment.
- Seguridade da batería: When working with batteries, wear appropriate personal protective equipment. Batteries can produce explosive gases.
- Cableado adecuado: Use correct wire gauges and ensure all connections are tight and secure to prevent fire hazards or poor performance.
3. Produto rematadoview
The Mastervolt Mass Combi Pro 24/3500-100 is a powerful and versatile inverter/charger combination designed for demanding applications. It integrates an advanced inverter, a robust battery charger, and a sophisticated transfer system into a single unit.
As características principais inclúen:
- Saída de alta potencia: Provides 3500 W of continuous inverter power.
- Advanced Charging: Features a built-in solar charge controller for optimal yield and efficient battery charging.
- Parallel and 3-Phase Operation: Capable of integration into parallel or 3-phase configurations for larger load requirements up to 35 kW (requires external switching system for larger systems).
- Efficient Technology: Utilizes new inverter technology for low standby consumption and a fast digital signal processor for seamless switching between power sources.
- Power Assist: Prevents power breaks and outages, even with weak power connections or small generators.
- Funcionamento silencioso: Active Optima Cooling allows up to 50% of charging current or inverter capacity without fan cooling, ensuring quiet operation at lower loads.
- MasterBus Integration: Equipped with MasterBus for advanced system monitoring and control.
- Dual AC Inputs: Features two separate AC inputs for generator and shore power, adapted to specific power source characteristics.

Fronte view of the Mastervolt Mass Combi Pro 24/3500-100, showing the grey casing with vertical fins for cooling, the 'PRO' logo, 'MASS COMBI PRO 24/3500 - 100 INVERTER / CHARGER COMBINATION' text, and a teal control panel on the right. The control panel features indicator lights for 'Gen', 'Mains', 'Out 1', 'Out 2', and battery charging states ('Float', 'Abs', 'Bulk'), along with an 'On/Off/Inverter Off' switch.
4. Configuración e instalación
Proper installation is crucial for the safe and reliable operation of the Mass Combi Pro. It is strongly recommended that installation be performed by a certified marine or electrical technician.
- Montaxe: Mount the unit in a dry, well-ventilated area, away from heat sources and flammable materials. Ensure sufficient clearance for airflow around the unit.
- Cableado de CC: Connect the DC input to your battery bank using appropriately sized cables and fuses. Observe correct polarity.
- Cableado de entrada de CA: Connect the AC inputs (shore power and/or generator) to the designated terminals. Ensure proper grounding and circuit protection.
- Cableado de saída de CA: Conecte as cargas de CA aos terminais de saída de CA.
- Remote Control/Monitoring: If applicable, connect any remote control panels or MasterBus communication cables.
- Encendido inicial: After all connections are secure, carefully apply DC power, then AC input power. Observe the indicator lights for normal operation.
5. Instrucións de funcionamento
The Mass Combi Pro features a user-friendly control panel for basic operation and status monitoring.
5.1 Panel de control rematadoview
Refer to the product image in Section 3 for visual reference of the control panel.
- On/Off/Inverter Off Switch: This switch controls the main power and inverter function.
- En: Activates both the inverter and charger functions.
- Desactivado: Turns off the entire unit.
- Inverter Off: Disables the inverter function while allowing the charger to remain active (if AC input is present).
- Luces indicadoras: These LEDs provide status information:
- Xeración: Indicates generator AC input is active.
- Alimentación principal: Indicates shore power AC input is active.
- Out 1 / Out 2: Indica o estado da saída de CA.
- Float / Abs / Bulk: Indicate the current stage of the battery charging process.
5.2 Funcionamento básico
- Comezando a unidade: Set the On/Off/Inverter Off switch to 'On'. The unit will perform a self-test, and the inverter will begin supplying AC power from the batteries if no external AC input is present.
- Carga de baterías: When an external AC source (shore power or generator) is connected and active, the unit will automatically begin charging the batteries according to the detected charge stage (Bulk, Absorption, Float).
- Switching AC Sources: The unit automatically switches between available AC input sources (generator, mains) and inverter power to ensure continuous AC supply to your loads.
- Apagado: To turn off the unit, set the On/Off/Inverter Off switch to 'Off'.
6. Mantemento
Regular maintenance ensures the longevity and optimal performance of your Mass Combi Pro.
- Limpeza: Periodically clean the exterior of the unit with a dry, soft cloth. Ensure ventilation openings are free from dust and debris. Do not use liquid cleaners.
- Conexións: Annually inspect all electrical connections (DC and AC) for tightness and corrosion. Loose connections can cause overheating and poor performance.
- Inspección da batería: Regularly check your battery bank according to the battery manufacturer's recommendations.
- Actualizacións de firmware: Comproba o Mastervolt website for any available firmware updates for your unit. Updates may improve performance or add new features.
7 Solución de problemas
If you encounter issues with your Mass Combi Pro, refer to the following basic troubleshooting steps. For complex problems, contact Mastervolt support.
| Problema | Causa posible | Solución |
|---|---|---|
| A unidade non se acende | No DC input power; Blown DC fuse; Unit switch in 'Off' position. | Comprobe as conexións da batería e o voltage; Inspect DC fuse; Set switch to 'On'. |
| Sen saída de CA do inversor | Inverter switch in 'Inverter Off' position; Low battery voltage; Overload. | Set switch to 'On'; Charge batteries; Reduce AC load. |
| As baterías non se cargan | No AC input power; AC input breaker tripped; Faulty battery connection. | Check shore power/generator; Reset AC breaker; Inspect battery wiring. |
| A unidade está a sobrequecer | Blocked ventilation; Excessive ambient temperature; Overload. | Clear obstructions; Ensure proper ventilation; Reduce load. |
8. Especificacións
The following table details the technical specifications for the Mastervolt Mass Combi Pro 24/3500-100.
| Especificación | Valor |
|---|---|
| Marca | Mastervolt |
| Nome do modelo | 24/3500-100 |
| Número de modelo | 38523500 |
| Fonte de enerxía | Energía solar |
| Vol. De entradatage | 24 voltios (DC) |
| Potencia de saída | 3500 vatios |
| Vol. De saídatage | 24 voltios (CA) |
| Potencia máxima de saída | 35000 vatios |
| Electrical Output Waveform | Pura Sine Wave |
| Standby Power Shutoff | 95 % |
| Energy Specifications Met | UL |
| UPC | 816882020407 |
| ASIN | B08BP18LMP |
9. Garantía e soporte
For warranty information, technical support, or service, please contact Mastervolt directly or refer to their official websitio. Garda á man o recibo da compra e o número de serie do produto cando contactes co servizo de asistencia.
Mastervolt Oficial Websitio: www.mastervolt.com