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Introduction
Outside air can be introduced to the engine room for combustion.
Outside air can also be sucked into the engine room as combustion
air, or as inlet ventilation air.
The net opening size for the air inlet is determined by the size of the
duct connection:
2
- 1.81 dm
(28 sq.ins.)for 152 mm (6") duct connection
2
- 2.49 dm
(38.6 sq.ins) for 178 mm (7") duct connection.
When combustion air goes straight to the engine via a ventilation
duct, then the air inlet port is suitable for engines with a maximum
power of:
- 150 kW (200 hp) for a 152 mm (6") diameter ventilation duct.
- 210 kW (280 hp) for a 178 mm (7") diameter ventilation duct.
When fitting 2 inlet ports for engine room ventilation, fit one on the
port side and one on the starboard side. A natural through-flow of
air will be created.
The air inlet port can be installed with the ventilation duct connec-
tion pointing either up or down.
The (2) filter mats, fitted between the air inlet port and inlet chamber
remove any water which may have been carried through the grilles.
WARNING
When combustion air goes straight to the engine via a ventila-
tion duct, the air inlet port must be fitted high enough on the
superstructure of the ship, so there can be no danger of water
being sucked into the engine, even when the ship rolls heavily.
Air Inlet Plenum Chamber MOFI100
Installation
Degrease the edge of the air inlet port and apply the sealing strip.
Keep the sealing strip joint at the top. See Drawing .
If required, fit the filter mats in the air inlet port, see Drawing .
Fit the air inlet port. When fitting, take into account the extra weight
of the inlet chamber and the ventilation duct.
A 152 mm (6") diameter duct can be fitted straight to the inlet
chamber.
When a 178 mm (7") diameter duct is fitted, the 152 mm (6") diam-
eter connector should be sawn off. Carefully de-burr the sawn sec-
tion. See Drawing .
Use the self-locking nuts to fix the air inlet chamber with the angle
pieces against the air inlet port. Tighten up the self-locking nuts
evenly until the sealing strip is compressed by 50%. See Drawing Ã.
Use a hose clip to fit the ventilation duct to the inlet port. Support
the duct so that the inlet port/chamber does not carry the weight
of the ducting.
ø 152 (6")
ENGLISH
Self-locking nut
Remove burrs
Saw off
ø 178 (7")
080303.01
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