MAN B&W 14.02
Page 2 of 2
MAN Diesel
MAN B&W ME/ME-C/-GI engines 198 85 56-2.0
Control of the Auxiliary Blowers
The control system for the auxiliary blowers is
integrated in the Engine Control System. The aux-
iliary blowers can be controlled in either automatic
(default) or manual mode.
In automatic mode, the auxiliary blowers are
started sequentially at the moment the engine is
commanded to start. During engine running, the
blowers are started and stopped according to
preset scavenge air pressure limits.
When the engine stops, the blowers are stopped
after 10 minutes to prevent overheating of the
blowers. When a start is ordered, the blower will
be started in the normal sequence and the actual
start of the engine will be delayed until the blow-
ers have started.
In manual mode, the blowers can be controlled
individually from the ECR (Engine Control Room)
panel irrespective of the engine condition.
Referring to Fig. 14.02.02, the Auxiliary Blower
Starter Panels control and protect the Auxiliary
Blower motors, one panel with starter per blower.
The starter panels with starters for the auxiliary
blower motors are not included, they can be or-
dered as an option: 4 55 653. (The starter panel
design and function is according to MAN Diesel &
Turbo’s diagram, however, the physical layout and
choice of components has to be decided by the
manufacturer).
Heaters for the blower motors are available as an
option: 4 55 155.
Scavenge air cooler requirements
The data for the scavenge air cooler is specified in
the description of the cooling water system chosen.
For further information, please refer to our publi-
cation titled:
MAN Diesel & Turbo Influence of Ambient Tem-
perature Conditions
The publication is available at www.marine.man.eu
→ ’Two-Stroke’ → ’Technical Papers’.
Fig. 14.02.02: Diagram of auxiliary blower control system
Engine Control System
Engine room
Motor
heater
Motor
heater
Motor
heater
Motor
heater
Motor
heater
Power
cable
Power
cable
Power
cable
Power
cable
Power
cable
Aux. blower
starter panel 1
Auxiliary
blower
Auxiliary
blower
Auxiliary
blower
Auxiliary
blower
Auxiliary
blower
MMMMM
Aux. blower
starter panel 2
Aux. blower
starter panel 3
Aux. blower
starter panel 4
Aux. blower
starter panel 5
178 61 30-2.0
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