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12
W-SQ PRO 15/18 kVA 60 Hz
Figure 20: Ways to prevent water to get in
A negative feature of a dry exhaust system is the heat radiated by
its components. Measures are taken to overcome the heat prob-
lem: The exhaust bent to bring the exhaust out of the canopy is
cooled by water. Insulation blankets are included in the exhaust
kit to insulate the flexible bellow and the first muffler.
When a dry exhaust has its outlet on the roof, all the pipes inside
the vehicle have to be insulated.
The exhaust pipes will be very hot and all accessible
pipes and mufflers are dangerous to people when not
insulated.
There are companies that are specialized in insulating hot pipes
and fancy systems are available to make it good looking. However
it is also possible to do it yourself by winding fibreglass or Rock-
wool around the pipes and seal it with aluminium tape.
2
THE STANDARD DRY EXHAUST SYSTEM
The standard exhaust system contains:
On the generator set:
• An insulated exhaust bent
In the exhaust installation kit:
• A stainless steel shielded flexible bellow.
• One resonance muffler
• One absorption muffler
• Clamps and rubbers for flexible mounting of the system
• Fittings, bents and pipes to make the different connec-
tions
• Blankets for thermal and sound insulation.
The mufflers are high quality industrial mufflers that are much
more effective, robust and durable than mufflers made for auto-
motive use.
3
INSTALLATION OF THE EXHAUST
Before determining the location of the generator set one has to
Mobile Diesel Generator
consider proper guiding of the exhaust. Often one can find space
below the vehicle between the chassis to mount the mufflers.
The outlet should blow the fumes away from the doors to avoid
exhaust fumes going into the compartment. When the gasses
are in the flow of air blowing from the radiators this will help to
avoid the fumes to be noticed. Under no condition the fumes
should be sucked into the flow of air into the radiators. In wind
still conditions a light smell of exhaust fumes around the vehicle
will not be avoidable.
To bring the exhaust to the top of the vehicle gives the best
results on noise and smell. However, when the pipes go through
the vehicle they should be insulated and around the hole in the
roof should be a collar to prevent rainwater to leak in. Both muf-
flers could be on the roof or one of them or both could be below
the vehicle.
In general it is better to have the mufflers wide apart: the reso-
nance muffler close to the generator and the absorption muffler
on the end of the line. A short pipe (30cm) should be on the far
end after the absorption muffler. The absorption muffler has no
flow direction and could be mounted both ways. The resonance
muffler should be mounted according to the indication on the
muffler itself.
The resonance muffler should be fitted according to
direction of the gas flow indicated.
In the kit are clamps to mount the exhaust pipes to stainless steel
bars. These bars should be mounted to the chassis of the vehicle.
It is recommend to use rubber mountings whenever possible.
However take care that the heat conducted through the brackets
will not affect the rubber. Refer to figure 21 how to mount the
rubber in a safe way. When any doubt an extra safe guard could
be constructed from steel wire or chain.
Figure 21: Mounting bracket in rubber with safe guard
2�5�4 ELECTRICAL INSTALLATION (12 VOLT)
1
DIGITAL DIESEL CONTROL SYSTEM
The electrical control system is standard in 12 Volt with negative
earth. Non- earth return is available as an option.
All electrical wiring has been prepared on the generating set to
the control panel prior to despatch from the factory. The engine
is controlled by a very advanced microprocessor based system:
Digital Diesel Control.
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