Prescriptions for safety during installation and setup. Mase IS 35-42

GENERATORS

GB

IS 29

2 Prescriptions for safety during installation and setup

- The personnel in charge of installation and starting of the generator must always wear a protective helmet, safety shoes and overalls.

- Use protective gloves.

- Do not leave disassembled parts, tools or anything else not forming part of the system on or near the engine.

- Never leave inflammable liquids or cloths soaked in inflammable liquids in proximity of the generator, near electric equipment (including lamps) or parts of the electrical system.

- Take the necessary precautions to prevent the danger of electrocution.

- Check that the earthing system has been installed and constructed in accordance with regulations.

3 INSTALLATION

3.1

Characteristics of the installation space

The generator must be installed in a sufficiently aired space, supplying a little amount of air necessary for the combustion of the motor.

The space must be separate and acoustically insulated from living areas.

The generator should be positioned so that normal maintenance operations can easily be carried out.

Propulsion motors are recommended for installation in the area as long as they comply with the above-mentioned conditions.

3.2

Fastening the unit to the ground

To fasten the unit securely, a base should be installed to absorb vibrations and support the weight.

Drill holes in the base according to the instructions in fig.1.

4 COOLING WATER CIRCUIT

The engine is cooled by an closed circuit system heat exchanger.

On installation a sea water feed circuit should be fitted for cooling and a waste system to expel the mixture of flue gas and water.

4.1

Sea water feed system

Boats usually use one of two systems to collect water

(fig. 3):

1 - Direct infeed system

2 - System with baffle

MASE recommends the direct infeed system (ref.1 fig. 3) since this system prevents water under pressure entering the suction ducts and instead forms a pressure which can easily be overcome by the water pump of the electric generator.

Do not apply any type of protective hood to the direct infeed system.

The baffle system might cause the following problems: a - If it is installed with the slots facing the prow.

In this case, during navigation and with the electric generator off, pressure is accumulated in the water infeed duct which might cause the system to fill up, even as far as the exhaust port, allowing water to enter the cylinders.

b - If it is installed with the slots facing the stern.

In this case a depression might accumulate in the water infeed duct during navigation, preventing the water pump from starting up the cooling plant, or limiting the capacity and subsequently causing the electric generator to overheat.

3.3

Ventilation

The generator is equipped with an internal forced cooling system through a water/air exchanger.

The air needed for combustion is taken in through the opening on the base (fig.2) so care must be taken to ensure that this opening is always free.

4.2.1 Typical installation with generator above the waterline (Fig.4)

1 Sea exhaust

2 Silencer

3 Muffler

4 Water filter

5 Main system tap

6 Sea intake

7 Drain tap

A - Pipes - inner diameter Ø75 mm.

B - Pipes - inner diameter Ø25 mm.

C - Pipes - inner diameter Ø16 mm.

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