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 service 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 leave it connected until the fault has been removed.

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

If, during navigation, a remarkable and continuous voltage drop of one or 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 charger.

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.

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

Use electric devices with double isolation or grounding.

Switch OFF the service and engine battery chargers before starting the engines. Keep the service and engine battery chargers OFF while at sea.

If generator battery chargers are on board, they must be switched OFF before starting the generators themselves. Keep the battery chargers turned OFF during the entire time the generators are running.

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.

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 utilities 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.

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.

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 fire-fighting 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!

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.

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

When disconnecting the inverter by means of the switch located on the front panel, the connection with the mains is not broken off.

Do not work on the inverter or on its system if still connected to a current source. Only qualified staff can carry out interventions on the electric system.

The services supplied by the inverter highly stress the batteries that could discharge as a result.

Before operating on the battery charger, disable the generators start and cut-off the shore power supply.

Before carrying out the switching over of the AC sources (generator/ shore), it is advisable to disconnect all AC services currently operating, to prevent damaging the electronic boards of the relevant devices.

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 Service Department directly.

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

The 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.

Have the inner condition of the inverter and battery charger checked at least once a year by skilled personnel. Faults like loose connections, burnt wires, etc., with following risk of fire spreading, must be repaired immediately.

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

Do not disconnect the battery master buttons with engines running or you may damage the engine alternators.

For the correct procedures of fuses replacement refer to the on-board electric manual delivered separately.