Electrical System On Board; Dc System - Bavaria VIRTESS 420 Owner's Manual

7.3. Electrical system on board

Caution - Adhere to the below, these are the fundamental rules to follow
» Always check the batteries and the charging system condition before going to sea
» Always disconnect and remove the battery when the craft is in winter storage (cold
weather areas) or long term storage.
» Remove the negative cable first, only then the positive cable. To replace the cables, first
replace the positive cable, then the negative one.
» Never work on the electrical installation while the system is energized.
» Never disconnect shore-power connections when the system is in use.
» Never modify the craft's electrical system or relevant drawings: installation, alterations
and maintenance should only be carried out by competent marine electrical technicians;
» Never alter or modify the rated current Amperage of overcurrent protective devices;
» Never install or replace electrical appliances or devices with components exceeding the
rated current of the circuit;
» Never leave the craft unattended with the electrical system energized, except automatic
bilge-pump, fire protection and alarm circuits.

7.4. DC system

The direct current (DC) electrical system derives its power from the series of batteries listed below. The batteries sup-
ply the components listed in the tables below which also show the settings of the overload protection breakers/fuses.
The Virtess 420 features a modular system, with four DC panel/boxes spread in the lower deck level. The system is
controlled via a touch sensitive display at the helm position and also features a sensor box which captures the soun-
dings (Black water, grey water; fresh water; consumer battery bow thrusters battery, linked on a RS485 BUS-System.
Pos Number Description
1 1 Consumer battery AGM 140 Ah (Series)
2 1 Consumer battery AGM 140 Ah (Option)
3 2 Starter batterie, AGM 92 Ah
4 1 Service batterie Tender lift 140Ah
5 1 Service batterie (Bow thruster) 92Ah
(Option)
Position of the battery
Engine room, starboard
Engine room, starboard
Engine room, port
Engine room , starboard
Below the drawers under the owner's berth, to be
accessed from the aft end of the berth face
21
Systems (some optional)