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All models can be serviced from one side. Oil filling can be done
on the service side and on the top. The top of the engine (rocker
cover) has to be accessible for adjustment of the valve clearance.
Please also note that in spite of the automatic oil pressure switch
the oil level must checked regularly.
2�3
P ROTECTION AGAINST DIRT, SAND AND BAD
WEATHER CONDITIONS
The unit is designed to be mounted inside a vessel rather than
on deck, where it could be exposed to (salt) water spray and bad
weather conditions. The best place is a dedicated engine room.
Even there, it should be protected against bilge water, conden-
sation, frost and other conditions that may affect the engine and
electronics.
The air inlet of the engine room must be protected against the
ingress of water and it is recommended to fit an air inlet strainer
for protection against dirt and dust .
2�4 SOUNDANDVIBRATIONREDUCTION
Position the genverter as low as possible in the vessel. The gen-
verter is secured to the base frame inside the canopy by means
of a flexible engine mountings system. This frame is must be
solidly mounted in the vessel, not using rubber mountings again
unless an additional base plate is inserted. When it is possible to
mount the unit directly on the vessel's frames this has advantag-
es in preventing vibrations by resonance.
2�4�1 Furtherrecommendations
WhisperPower genverters are standard equipped with a sound
cover canopy. This sound cover has been designed to give effec-
tive sound insulation. For optimum sound and vibration dampen-
ing, the following factors should be considered
1.
Most importantly, the structure on which the genverter
is placed must be stiff. Directly below the base frame, the
structure should be supported by the vessel's frames. When
this is not possible horizontal structures should be made
stiff by additional provisions (Figure 1).
2.
In larger vessels a separate and insulated engine room for
the genverter will help to dampen the noise even further.
3.
Avoid mounting the genverter in close proximity to thin
walls or floors that may cause resonance.
4.
Sound dampening is extremely poor if the genverter is mount-
ed on a light weight flimsy surface such as plywood which
will only amplify vibrations. If mounting on a thinner surface
X = wrong, V = OK
Piccolo 6 Marine Diesel Genverter
cannot be avoided, this should be at least be reinforced with
stiffening struts or ribbing. If possible, holes should be drilled
or cut through the surface to help reduce the resonance. Cov-
ering the surrounding walls and floors with a heavy coating
plus foam will certainly improve the situation.
5.
Never connect the base of the genverter directly to bulk-
heads or tanks (Figure 1).
2�5 VENTILATION
The genverter normally draws air from the engine room. An
engine room with natural ventilation must have vent openings
of adequate size and location to enable the genverter to operate
without overheating. To allow an ample supply of air within the
temperature limits of the genverter an opening of at least 100
cm
is required.
2
A "sealed" engine compartment must have a good extraction
ventilator to maintain reasonable ambient temperatures. High
temperature of intake air reduces engine performance and
increases engine coolant temperatures. Air temperatures above
40°C reduce the engine power by 2% for each 5°C of rise. At high-
er temperatures the electric output will be lower. To minimize
these effects the engine room temperature must not exceed the
outside ambient air temperature by more than 15°C.
Apply a combination of ventilators, blowers and air intake ducting
to meet the temperature limit. The air inlet ducts should run to
the bottom of the engine compartment to clear fumes from the
bilge and to circulate fresh air. Air outlets should be at the top of
the engine compartment to evacuate the hottest air. An engine
compartment blower should be used as an extraction ventilator
to remove air from the engine room.
In cases where it is impossible to meet the above mentioned
temperature limit by using engine compartment ventilation, con-
nections are to be made for an air inlet directly to the genverter
enclosure. With these connections the genverter can be directly
connected to an air duct.
Air inlets should be louvered, where appropriate, to protect the
engine room and to protect the genverter from water spray.
'
Fig.1:Mounting of the WhisperPower genverter
Stage V certified / EPA / Tier 4
5
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