Mastervolt Combimaster Inverter/Charger 12/1500-60 Amp 120V User Manual

Introduction

This manual provides essential information for the safe and efficient operation, installation, and maintenance of your Mastervolt Combimaster Inverter/Charger. Please read this manual thoroughly before installation and use to ensure proper functionality and to prevent damage to the unit or connected equipment.

The Mastervolt Combimaster is an advanced inverter/charger combination unit designed to provide reliable AC power from a DC battery bank and efficiently charge batteries from an AC source. This model, 12/1500-60 Amp 120V, is suitable for various applications, including marine, RV, and off-grid systems.

Safety Instructions

Always observe the following safety precautions:

• Installation must be performed by qualified personnel.
• Ensure all power sources are disconnected before installation or maintenance.
• Do not expose the unit to water or excessive moisture.
• Ensure adequate ventilation around the unit to prevent overheating.
• Use appropriate wiring and circuit protection as specified in the installation guidelines.
• Do not attempt to open or repair the unit yourself. Refer to qualified service personnel.

Product Overview

The Mastervolt Combimaster 12/1500-60A is a compact and powerful device that integrates an inverter and a battery charger into a single unit. It is designed for seamless power management, providing AC power when shore power or generator power is unavailable, and efficiently charging batteries when an AC source is connected.

Figure 1: Front view of the Mastervolt Combimaster Inverter/Charger. The unit is teal with a grey central band displaying indicator lights and product specifications.

Key features include:

• Integrated inverter and charger functionality.
• High efficiency and reliability.
• Compact design for space-saving installation.
• Advanced battery charging algorithms.
• Multiple protection features (overload, over-temperature, short circuit).

Setup and Installation

1. Unpacking and Inspection

Carefully unpack the Combimaster unit and inspect it for any signs of shipping damage. Report any damage to your supplier immediately.

2. Mounting Location

Choose a mounting location that is:

• Dry and well-ventilated.
• Protected from direct sunlight and extreme temperatures.
• Accessible for wiring and maintenance.
• Close to the battery bank to minimize DC cable length.
• On a non-flammable surface.

3. Wiring Connections

All wiring must comply with local electrical codes and standards. Use appropriately sized cables for both DC and AC connections.

DC Connections:

1. Connect the positive (+) battery cable to the positive terminal on the Combimaster.
2. Connect the negative (-) battery cable to the negative terminal on the Combimaster.
3. Ensure all DC connections are tight and secure.

AC Connections:

1. Connect the AC input (shore power/generator) to the designated AC input terminals.
2. Connect the AC output (to loads) to the designated AC output terminals.
3. Ensure proper grounding of the unit.

Refer to the wiring diagram provided in the full installation manual for detailed connection points.

Operating Instructions

1. Initial Startup

1. After all connections are made and verified, switch on the DC circuit breaker connected to the battery bank.
2. Observe the indicator lights on the Combimaster. The unit will perform a self-test.
3. If an AC input source (shore power/generator) is available, connect it. The unit will automatically switch to charger mode and begin charging the batteries while supplying AC power to the loads.

2. Inverter Mode

When no AC input is present, the Combimaster will automatically switch to inverter mode, converting DC battery power into 120V AC power for your connected appliances.

• Ensure battery capacity is sufficient for your load requirements.
• Avoid overloading the inverter beyond its rated capacity (1500W).

3. Charger Mode

When a valid AC input is detected, the Combimaster will prioritize charging the batteries. It features a multi-stage charging process to optimize battery health and lifespan.

• The charging current is 60 Amps.
• The unit will automatically adjust charging parameters based on battery type and state of charge.

4. Indicator Lights

The front panel features indicator lights that provide status information:

• Power On: Indicates the unit is receiving power.
• Inverter Active: Lit when the unit is in inverter mode.
• Charger Active: Lit when the unit is in charger mode.
• Fault/Warning: Indicates an error or warning condition (refer to troubleshooting section).

Figure 2: Detail of the indicator lights and branding on the Mastervolt Combimaster.

Maintenance

The Mastervolt Combimaster is designed for minimal maintenance. However, regular checks can ensure optimal performance and longevity.

• Monthly: Inspect all wiring connections for tightness and corrosion. Clean any dust or debris from the unit's ventilation openings.
• Annually: Have a qualified technician inspect the unit and system for any signs of wear or potential issues. Check battery terminals for corrosion and clean if necessary.

Always disconnect all power sources before performing any maintenance.

Troubleshooting

This section provides solutions to common issues. For more complex problems, contact Mastervolt technical support.

Specifications

The following table outlines the key technical specifications for the Mastervolt Combimaster 12/1500-60 Amp 120V (Model: 35511500).

Note: The product image displays a teal unit, but the provided specifications list the color as Black.

Warranty Information

The product comes with a manufacturer's warranty. Please refer to the warranty card included with your purchase or visit the official Mastervolt website for detailed warranty terms and conditions. Keep your proof of purchase for warranty claims.

Note: The provided product data indicates "Warranty Description: Warranty". For specific details, consult the official product documentation.

Customer Support

For technical assistance, service, or spare parts, please contact Mastervolt customer support. You can find contact information on the official Mastervolt website or through your authorized dealer.

When contacting support, please have your product model number (35511500) and serial number ready.