Typical Installation With Electric Generator Below The Water-Line; Typical Installation Of Electric Generator With "E/G" Separator Above And Below The Water-Line; Components - Mase Marine IS 9000 Manuel D'installation

GENERATORS
2.3 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 20 mm
C - Clamps
D - Tubes, internal diameter 50 mm
2.4. 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 exhaust
12 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
9 Silencer
10 Gas exhaust
11 Water exhaust
12 Water line
13 Drainage
14 Electric generator
A -
Tubes, inside diameter 50 mm, suitable for sea
water/exhaust gas.
B - Tubes, inside diameter 20 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.
- 14 -
The measurements should corre
WARNING
spond exactly.
In order to have a better noise damping it is recom-
mended to adopt a silencer, on the "D" tube, at the
distance of 1
"E/G" separator.
2.5

Components

WARNING
The sea water intake system must be separate from
the one for the engines propelling the boat.
1 - Direct sea intake 1/2"
WARNING
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 9000 / 9500: 2400L/h.
INFORMATION
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 of
siphons. It's use obligatory when the base of the
generator group is under the water line, and it
must be positioned at least 30 cm. above sea level.
(see fig. 11).
WARNING
Anti-siphon valve must be inserted between the inlet
of the sea water pump and mixing elbow as indicated
in Fig. 11
The drainage duct of the anti-siphon valve must run
beneath the valve itself in order to prevent water
IS 9000 - 9500
meter from the