Scania DI09 User manual

02:02 Issue 4.0 en-GB
© Scania CV AB 2018, Sweden
Installation manual
Intake system and ventilation
Marine engines
DI09, DI13, DI16
338 170

INSTALLATION
MANUAL
© Scania CV AB 2018, Sweden
02:02 Issue 4.0 en-GB 2
Changes from the previous issue............................................................................ 3
Intake air .................................................................................................................. 4
Intake air taken from outside engine room.......................................................... 5
Intake air taken from engine room ...................................................................... 8
Air cleaner..............................................................................................................10
Air cleaners with precleaner.............................................................................. 11
Air cleaners without precleaner......................................................................... 11
Turbo-mounted filter ......................................................................................... 12
Clean air ............................................................................................................ 12
Air pressure............................................................................................................13
Crankcase ventilation............................................................................................14
Important data.......................................................................................................15

INSTALLATION
MANUAL
© Scania CV AB 2018, Sweden
Changes from the previous issue
02:02 Issue 4.0 en-GB 3
Changes from the previous issue
The changes made in this document compared with the previous issue are marked
with a line in the left-hand margin. The changes are also described below.
• Information about the safety cartridge for the air cleaner with precleaner has been
removed, as a safety cartridge is no longer included. See Air cleaner.
• Clearances for Air cleaners with precleaner and Air cleaners without precleaner
have been corrected.

INSTALLATION
MANUAL
© Scania CV AB 2018, Sweden
Intake air
02:02 Issue 4.0 en-GB 4
Intake air
If the intake line is located close to exhaust pipes or other hot parts, radiation protec-
tion should be used to limit unnecessary heating of the intake air.
REQUIREMENT!
The intake air temperature upstream of the turbocharger must be below 30°C.
Measure the temperature when the installation is complete. Refer to 02:08 Measur-
ing instructions for installation inspection.
If the intake air temperature upstream of the turbocharger continuously exceeds
30°C, then engine power may drop. If the engine is enclosed in some manner, make
sure that there is an adequate flow of intake air.
The dependence of the engine power on intake air temperature is shown in the chart
on the right. 100% engine power is shown under actual test conditions at the factory.
The engine air consumption in kg/min at full power and at different engine speeds is
indicated in the tables showing the air consumption and radiated heat for the relevant
engine type in 02:06 Technical data.
100
95
90
%
A
B
10 20 30
25 40 50 °C
340 422
Engine power dependence on intake air temperature. 100 % at 25°C, 1,000 mbar, en-
gine power setting not corrected.
A = Engine power.
B = Intake air temperature.

INSTALLATION
MANUAL
© Scania CV AB 2018, Sweden
Intake air
02:02 Issue 4.0 en-GB 5
Intake air taken from outside engine room
In engine systems where the engine intake air comes from outside the engine room
and is led via a fresh air line to the engine, the vacuum for the intake system should
be measured.
The air intake should be located so that the intake air is as clean as possible and so
that neither the engine exhaust gases nor heated air from the engine room can mix
with the intake air. The air intake should be designed to exclude water, snow and con-
tamination.
The intake air must not contain chemical pollutants, such as CFCs.
REQUIREMENT!
The maximum permissible vacuum in the intake system is 30 mbar. This value in-
cludes the vacuum in the new air filter, connected coarse filter and in the fresh air
line.
Measure the vacuum when the installation is complete. Refer to 02:08 Measuring in-
structions for installation inspection.

INSTALLATION
MANUAL
© Scania CV AB 2018, Sweden
Intake air
02:02 Issue 4.0 en-GB 6
The following applies to the fresh air line:
• The fresh air line must not be routed with any sharp bends.
• The inside of the fresh air line must be flat and even.
• If a hose is used as a fresh air line, it must be reinforced so that it does not collapse
onto itself.
It is not necessary to check the vacuum in the following cases:
• If the intake system is comprised of air hoses and air pipes from Scania's standard
range.
• If the fresh air line is a maximum of 5 m and has an inner diameter of a minimum
of 210 mm.
If the planned fresh air line is longer than 5 m, the required diameter must be calcu-
lated as illustrated. The vacuum upstream of the turbocharger must then be measured.
Refer to 02:08 Measuring instructions for installation inspection.
REQUIREMENT!
The total vacuum in the intake system with a blocked air filter must not exceed
65 mbar.
Engine damage will not occur up to 100 mbar, but fuel consumption and smoke will
increase. Above 100 mbar there is a risk that the air volume to the engine will be in-
adequate, resulting in breakdowns.
B (kg/min)
365 744
A (mm)
500
400
300
200
100
0
0
10 20 30 40 50 60
25 m
50 m
Calculation of minimum diameter of the intake line.
A = Intake line diameter.
B = Air consumption.

INSTALLATION
MANUAL
© Scania CV AB 2018, Sweden
Intake air
02:02 Issue 4.0 en-GB 7
Ventilation of the engine room with fresh air line to the engine
If the intake air to the engine is taken from outside the engine room, it is important
to check that the temperature in the engine room does not get too high.
REQUIREMENT!
The temperature in the engine compartment must not exceed 60°C.
Measure the temperature when the installation is complete. Refer to 01:08 Measur-
ing instructions for installation inspection.
If the temperature exceeds 60°C, there is a risk of malfunction in the engine electrical
components and engine control unit. If there is a risk that the temperature will exceed
this value, the engine room must be ventilated.
When dimensioning the engine room ventilation, other air consumers in the engine
room must also be considered. The amount of radiated heat emitted by the various
engines is indicated in 02:06 Technical data.
The exhaust pipes should be insulated to reduce the radiated heat in the engine room.
See 02:04 Exhaust system.

INSTALLATION
MANUAL
© Scania CV AB 2018, Sweden
Intake air
02:02 Issue 4.0 en-GB 8
Intake air taken from engine room
When the engine intake air is taken from the engine room, the air intake must be lo-
cated in the engine room. The opening area should be large enough to ensure that no
vacuum arises in the engine room. The air intake should also be designed and posi-
tioned so that it cannot be closed or accidentally blocked by water, snow or contam-
inants.
The air intake should be located so that the intake air is as clean as possible and so
that neither the engine exhaust gases nor heated air from the engine room can mix
with the intake air to the engine.
In the chart on the right-hand side, the recommended minimum area for the air intake
can be read from the engine air consumption.
If several engines or other air consumers are located in the same engine room, the
diameter should be increased correspondingly.
REQUIREMENT!
The vacuum in the engine compartment must not exceed 2 mbar.
Measure the vacuum when the installation is complete. Refer to 01:08 Measuring in-
structions for installation inspection.
10
0,1 0,2 0,3 0,4
20
30
40
50
60
kg/min
m
2
25
o
C
340 420
Calculation of minimum air intake area.

INSTALLATION
MANUAL
© Scania CV AB 2018, Sweden
Intake air
02:02 Issue 4.0 en-GB 9
For installations where the engine draws the intake air directly from the engine room,
the engine room must normally be equipped with a ventilation system. This system
should extract the air heated by radiation etc. in order for the requirement of a low
intake air temperature to be met.
If there is a refrigerator compressor in the engine room, it is important that any leak-
age of refrigerant does not contaminate the intake air.
The radiated heat from the engine exhaust pipe downstream of the engine must also
be taken into account. The heat radiation depends on how much of the line is inside
the engine room and how much of it is insulated.
There is also additional heat due to efficiency losses in driven units located in the en-
gine room.
The amount of radiated heat emitted by the engine is indicated in the tables showing
the radiated heat for the relevant engine type in 02:06 Technical data .

INSTALLATION
MANUAL
© Scania CV AB 2018, Sweden
Air cleaner
02:02 Issue 4.0 en-GB 10
Air cleaner
The engines can be supplied with a turbo-mounted air filter or with an air filter
mounted separately. The air cleaner is available with or without integrated self-clean-
ing precleaner.
Bear in mind the following when installing the air cleaner:
• The air cleaner must be fitted so that it is easily accessible for cleaning and filter
renewal.
• The vacuum indicator must be positioned so that it can be read easily.
• In order to be able to remove the filter element, clearance in the air cleaner exten-
sion is required. Refer to the subsequent page.
• The intake line between the air cleaner and the turbocharger must be sealed so that
no unfiltered air can be drawn into the engine. The intake line must be designed
in such a way that it cannot collapse onto itself as a result of a large pressure drop.
The intake line should be able to withstand a vacuum of 200 mbar before it col-
lapses onto itself.
• The material and composition of the intake line between the air filter and turbo-
charger must be such that it cannot release rust or objects that could damage the
engine.
It is also important to make sure that any insulation in the engine room and around
the exhaust pipes cannot come loose and be drawn into the intake line.
If a non-Scania air filter is used, engine air consumption and filter element pore size
must be considered.

INSTALLATION
MANUAL
© Scania CV AB 2018, Sweden
Air cleaner
02:02 Issue 4.0 en-GB 11
Air cleaners with precleaner
IMPORTANT!
Air cleaners with precleaners must be fitted horizontally with the drain pipe pointing
downwards.
Air cleaners with precleaners are available for all engines. Available sizes are
15 inches for DI09 and DI13 and 2 x 13 inches for DI16.
Air cleaners without precleaner
IMPORTANT!
Air cleaners without precleaners must be fitted horizontally with the air intake (1)
pointing downwards. The air cleaner may also be fitted vertically, but only if it is fit-
ted indoors or in such a way that water cannot get into the air filter. The cover should
then face downwards.
A 15 inch air cleaner without precleaner is available for DI09 and DI13. The amount
of free space required for prefilter renewal is shown in the illustration.
A = free space required for prefilter renewal (mm).
15 inches 1,010
13 inches 900
A
165
152
397 188
165
1
152
1010
397 191

INSTALLATION
MANUAL
© Scania CV AB 2018, Sweden
Air cleaner
02:02 Issue 4.0 en-GB 12
Turbo-mounted filter
The engines can also be supplied with a simpler 8 inch light duty unit filter.
Clean air
Air cleaners without precleaner and turbo-mounted filters clean efficiently but may
have an unacceptably short service life if the intake air to the engine compartment is
not sufficiently clean.
Therefore, Scania recommends that these type of filters are not used in the following
engine installations:
• Boats used in harbours, canals and near coasts where traffic, wind or any type of
industrial activity can stir up dust.
• Boats which load and unload dusty goods.
• Boats which travel through areas where the soot content of the air is high due to
traffic or industrial combustion.
• Engine installations where insulation in the engine compartment or around the ex-
haust pipe is in a condition where fibres can shake loose.
• Engine installations where crankcase gases or exhaust gases can be drawn into the
air filter.
338 173
Turbo-mounted filter for DI09 and DI13.
338 171
Turbo-mounted filter for DI16.

INSTALLATION
MANUAL
© Scania CV AB 2018, Sweden
Air pressure
02:02 Issue 4.0 en-GB 13
Air pressure
On delivery, the engine control unit is set so that the maximum fuel injection quantity
provides 100% engine power when the intake air is at a pressure of 1,000 mbar.
Contact a Scania distributor to check the engine power if the engine is to be used at
heights. If the engine power is set incorrectly, this will cause abnormal smoke levels
and result in high thermal stress.
The turbocharger may also be damaged by the raised exhaust temperature due to en-
gine overspeed.
In cases of continuous operation at air pressures below 1,000 mbar, it may therefore
be necessary to reduce engine power. Available engine power is reduced as shown in
the illustration on the right.
The lowest air pressure which is permissible for short periods without adjusting the
engine power setting is 750 mbar, which corresponds to 2,500 metres above sea lev-
el.
Engine output dependence on air pressure.

INSTALLATION
MANUAL
© Scania CV AB 2018, Sweden
Crankcase ventilation
02:02 Issue 4.0 en-GB 14
Crankcase ventilation
Scania offers closed crankcase ventilation systems. In a closed crankcase ventilation
system, the crankcase gases are routed to the intake line between the air filter and the
turbocharger via a centrifugal oil cleaner.
Note:
It is not permissible to lead the crankcase gases to the intake upstream of the engine
air filter.
338 172
Closed crankcase ventilation for DI09 and DI13.
338 169
Closed crankcase ventilation for DI16.

INSTALLATION
MANUAL
© Scania CV AB 2018, Sweden
Important data
02:02 Issue 4.0 en-GB 15
Important data
Max. recommended temperature for engine intake air 30 °C
Requirements which must be met for the fresh air line so that the vacuum does not need to be checked Length: max. 5 m
Inner diameter: at least 210 mm.
Maximum permissible vacuum in the intake system with cleaned or new filter 30 mbar
Maximum permissible vacuum in the intake system with blocked filter 65 mbar
Maximum temperature in the engine compartment when the intake air is taken from outside the engine compartment 60 °C
Max. permissible vacuum in engine compartment (pressure difference) 2 mbar