Mase Generators I.S. 6.5 Manuel D'installation page 20

I.S. 6.5
50Hz
GB
4-5 should correspond exactly.
job of collecting the water in the exhaust pipes when
the generator motor is turned off, thus preventing it
from flowing into the motor through the exhaust
manifold and valve. For this reason it is essential that
the position of the muffler and the length of the pipes
indicated on the installation chart be fully respected.
4.3 Typical installation with electric generator
below the water line (fig. 5)
1 Sea intake
2 System general tap
3 Tap to drain system
4 Water filter
5 Anti-siphon valve
6 Barrel muffler
7 Silencer
8 Sea drainage nozzle
9 Generating set
10 Drainage
11 Water line
A - Tubes, internal diameter 50 mm
B - Tubes, internal diameter 16 mm
C - Clamps
4.4 Typical installation of electric generator with
"E/G" separator above (fig. 6) and below
(fig. 7) the water-line
References for figure 6:
1 Sea intake
2 General tap-water
3 Tap to drain system
4 Water filter
5 Electric generator
6 Barrel muffler
7 "E/G" Separator
8 Sea drainage nozzle
9 Silencer
10 Gas exhaust
11 Water line
References for figure 7:
1 Sea intake
2 General tap-water
3 Tap to drain system
4 Water filter
5 Anti-siphon valve
6 Barrel muffler
7 "E/G" Separator
8 Sea drainage nozzle
GB
- 12
- I.S. 7.6
60Hz
The measurements shown in fig.
The muffler (fig.4, ref.6) has the
9 Silencer
10 Gas exhaust
11 Water line
12 Drainage
13 Anti-siphon valve
A - Tubes, inside diameter 50 mm, suitable for sea
water/exhaust gas.
B - Tubes, inside diameter 16 mm, suitable for sea
water.
C - Clamps.
D - Tubes, inside diameter 40 mm, suitable for exhaust
gas (Max 70 °C).
E - Tubes, inside diameter 25 mm, suitable for sea
water.
The measurements should
correspond exactly. In order to have a better noise
damping it is recommended to adopt a silencer, on
the "D" tube, at the distance of 1 meter from the
"E/G" separator.
4.5 Components
The sea water intake system must
be separate from the one for the engines propelling
the boat.
1 - Direct sea intake 1/2"
If the unit is installed more than 1
metre above the water-line, a check valve should be
fitted after the sea intake (fig. 8, ref. 1) to prevent the
water circuit emptying when the motor is off. If this
empties, the rotor of the water pump might be
damaged during start up; for the same reason, when
the unit is first started up, the suction tube from the
valve to the pump should be filled manually.
2 - Ball tap (general) 1/2"
3 - Ball tap (drainage) 1/2"
This is used to drain the cooling system of the
electric generator for general maintenance or when
a long period of inactivity is expected.
4 - Water filter (can be inspected)
This must provide efficient protection for the cooling
circuit from the entrance of mud, sand and seaweed.
Rate of flow for IS 6.5 / 7.6 : 25-28 L/min.
The filter mesh should be very
fine. Mesh 2 - 470 micron is recommended, other
sizes do not give good filter performance.
5 - Anti-siphon valve: this is a valve that brings the
cooling circuit back to atmospheric pressure when
the motor is turned off, thus avoiding the formation