Before undertaking any navigation, check that the batteries are in good condition and that they supply the correct nominal current.

During navigation both the button-switch of the user batteries and the button switch of the engine batteries must always be connected, that is positioned to ON. The parallel button switch on the two sets must be normally disconnected and therefore set to OFF.

If during navigation an operation fault on the re-charging alternators occurs, set to ON the button switch of the parallel connection between the batteries sets and let it connected until the fault has been removed.

Never start navigation without having set to ON both the engines batteries switch and the uses batteries switch and do not disconnect them during navigation.

If, during navigation, a remarkable and continuous voltage drop of one nor both battery banks occurs, check the recharging efficiency (alternator recharge on monitoring system) of the relevant alternator. If the alternator is not operating, it is necessary to start the power generator and to activate the independent electrical battery chargers.

The parallel system between battery banks is used to increase the inrush current during the start-up phase of engines, in particular weather conditions or state of charge, and for a limited period of time.
This system must be activated only if the button switches connecting the engines and user battery banks are positioned to ON.
Do not use in case of faults on the batteries recharging circuits, for instance on the engines alternators. We advise to use this system only in emergency cases.

Do not modify the electric systems or relevant drawings. The installation, the modifications or the maintenance must be carried out only by a skilled naval electrician.
Inspect the system at least once a year.

Refrain from performing any modification or intervention on the system and on the panel and take advantage of experienced Companies and skilled staff. Avoid particularly derivations on electric lines and splices of services not provided for on the same panel. Finally, if you need to assign services to the switches available, make sure that their characteristics are suitable with the device installed.

The engine control systems: accelerator and gears engagement remote controls are electronic. Their reliability is very high, but in case of a sudden black-out, it is necessary to immediately switch off the engine which is not controllable any more by means of the relevant buttons located in the main helm station.

Do not modify the electric systems or relevant drawings.
The installation, the modifications or the maintenance must be carried out only by a skilled naval electrician.
Inspect the system at least once a year.

Use electric devices with double isolation or grounding.

If your are compelled to use the “battery parallel connection”, turn off all electronic devices, so as not to jeopardize their correct operation.
In emergency conditions, use the battery parallel set for the shortest reasonable time.

Before carrying out any intervention on the electric system, disconnect all circuits (shore, generators and inverter):

• Disconnect the shore sockets;
• Set to OFF the magneto-thermal switch of generators;
• Set to OFF the magneto-thermal switches at inverter output and turn off the inverter (off button on the front).

To reduce shock and fire hazards to the minimum:

• Open the ground power connection switch of the unit before connecting or disconnecting the ground power cable;
• Connect the ground power source;
• Disconnect the shore power cable first from the power source (shore power column) and then from the unit.

We recommend, in order to operate in complete safety, to carefully read the safety rules relevant to the maintenance and contained in this manual.

Disconnect the shore power supply connections when the system is not in use.

Do not allow the cable end of shore power supply to float in the water. This can cause an electric field and following injuries or even the death of the swimmers nearby.

Do not modify connectors of shore power supply cable, use only plug compatible connectors.

The 230V system is similar to a domestic system in terms of features and risks and, if “wrongly” used, mishandled or serviced, it statistically represents one of the most frequent reasons for fire on board.

Before starting to work on electrical panels or devices, prevent the generators’ operation by disconnecting the electric power supply from shore and the inverter.

NEVER:

• Work on the electric system while under voltage.
• Modify the electric systems of the system or relevant drawings: the installation, the modifications and the maintenance must be carried out only by a skilled marine electrician.
• Alter or modify the intensity of rated current of protections against overcurrent.
• Install or replace electric equipment or devices with components exceeding the rated current intensity of the circuit.
• Leave the yacht unattended with the electrical system powered, except for the circuits of the bilge automatic suction pumps, of the firefighting protection and of the alarms (directed to battery).

Electrocution hazard! Turn the power off before removing the cover and servicing any electrical equipment internal component.

All electrical systems (included those at low voltage) if wrongly handled or subjected to overloads, can originate short-circuits and dangerous overheating with potential fire hazards!

RIVA suggest to examine very carefully the whole documentation delivered by the manufacturers of the various components; and for any problem relevant to maintenance, to contact RIVA After Sales & Service Department directly.

Before stopping the power generator, disconnect the various on-board services supplied by this; stopping the power generator under load can irreparably damage the electronic control units of the various uses and have a negative influence on the generator operation.
However, please refer to the manual of the power generator to obtain more detailed information about the starting and stopping procedures.

Before carrying out any maintenance operations, disconnect all electrical power sources.