BEP 717-140A-DVSR Battery Distribution Cluster User Manual

Product Overview

The BEP 717-140A-DVSR is a sophisticated battery distribution cluster specifically engineered for twin engine marine installations. This system efficiently manages power across three battery banks: a Port start battery, a Starboard start battery, and a common House battery. Its primary function is to allow each engine to charge its respective start battery and the house battery when its Digital Voltage Sensing Relay (DVSR) is engaged. This design facilitates a combined charge from both engines into the house battery until the engine's voltage regulators take over. It also provides the flexibility to charge the house battery even when only one engine is running.

Image: The BEP 717-140A-DVSR unit, showing its compact design with multiple battery switches and integrated Digital Voltage Sensing Relays (DVSRs) for managing power distribution across three battery banks in a marine setting.

Key Features

• Twin Engine Compatibility: Designed specifically for boats with two outboard engines.
• Three Battery Banks: Manages Port Start, Starboard Start, and House battery banks.
• Digital Voltage Sensing Relays (DVSR): Automatically combine battery banks for charging when a charging source is detected.
• Combined Charging: Allows both engines to contribute to charging the House battery.
• Pre-wired and Bused: Simplifies installation with pre-assembled components.
• Marine Grade Application: Constructed for durability and reliability in harsh marine environments.
• International Standards Compliant: Meets relevant international marine electrical standards.

Setup and Installation

Installation of the 717-140A-DVSR should be performed by a qualified marine electrician or experienced individual. Always disconnect all power sources before beginning installation. Refer to the detailed wiring diagram provided with your product for specific connections.

General Installation Steps:

1. Mounting: Select a dry, accessible location for mounting the cluster. Use the supplied mounting fastenings to secure the unit firmly.
2. Battery Connections:
   • Connect the Port Start battery to the designated "PORT START" terminal.
   • Connect the Starboard Start battery to the designated "STBD START" terminal.
   • Connect the House battery to the designated "HOUSE" terminal.
   • Ensure all battery cables are of appropriate gauge for the expected current draw and are properly crimped and insulated.
3. Engine Alternator Connections: Connect the positive output from each engine's alternator to the corresponding DVSR input on the cluster.
4. Grounding: Ensure a robust common ground connection for the entire system.
5. Emergency Parallel: The "EMERG PARALLEL" switch allows for manual combining of battery banks in an emergency. Understand its function and proper use.
6. System Check: After all connections are made, carefully inspect all wiring for correctness and security before re-applying power.

Image: An example of a marine electrical panel integrating BEP switches, demonstrating how the cluster might appear once installed within a boat's electrical system.

Operating Instructions

The BEP 717-140A-DVSR is designed for largely automatic operation, simplifying battery management. The Digital Voltage Sensing Relays (DVSRs) are key to its functionality.

Automatic Charging with DVSRs:

• When the Port engine is running and its alternator voltage reaches a preset level (typically 13.0V for 12V systems), the Port DVSR will engage. This connects the Port Start battery to the House battery, allowing both to be charged by the Port engine.
• Similarly, when the Starboard engine is running and its alternator voltage reaches the preset level, the Starboard DVSR will engage, connecting the Starboard Start battery to the House battery.
• This allows for efficient charging of all three battery banks from either or both engines. The DVSRs will disengage when the voltage drops below a certain threshold (e.g., 12.7V), isolating the batteries to prevent discharge from one bank to another.

Manual Operation (Emergency Parallel):

• The "EMERG PARALLEL" switch provides a manual override to combine all battery banks. This is typically used in emergency situations, such as when a start battery is depleted and needs assistance from another bank to start an engine.
• Caution: Use the emergency parallel function sparingly and only when necessary. Prolonged use can lead to over-discharge of healthy batteries or damage to the system if there is a fault in one of the batteries. Always return the switch to its normal operating position once the emergency is resolved.

Image: A close-up view of a marine electrical panel, showcasing the individual battery switches and the integrated DVSRs, which are central to the cluster's operation.

Maintenance

Regular maintenance ensures the longevity and reliable performance of your BEP 717-140A-DVSR battery distribution cluster.

• Visual Inspection: Periodically inspect all wiring connections for corrosion, fraying, or loose terminals. Ensure all connections are clean and tight.
• Cleanliness: Keep the unit clean and free of dirt, dust, and moisture. Use a damp cloth for cleaning; avoid harsh chemicals.
• Battery Health: Regularly check the health and charge level of all connected batteries. A faulty battery can negatively impact the entire system.
• DVSR Functionality: Occasionally verify that the DVSRs are engaging and disengaging correctly by monitoring voltage levels during engine operation and shutdown.
• Ventilation: Ensure adequate ventilation around the unit to prevent overheating, especially in enclosed compartments.

Image: A marine fuse block and bus bar setup, illustrating the type of robust electrical connections that should be regularly inspected for cleanliness and integrity as part of routine maintenance.

Troubleshooting

If you encounter issues with your BEP 717-140A-DVSR, consult the following common troubleshooting steps:

Specifications

Warranty and Support

For detailed warranty information and technical support, please refer to the official documentation included with your BEP 717-140A-DVSR product or visit the official BEP Marine website. Contact information for customer service and technical assistance can typically be found there.

Manufacturer: Marinco Electrical Group