Control Of The Auxiliary Blowers; Diagram Of Auxiliary Blower Control System - Man B&W S50MC-C8-TII Project Manual

MAN B&W

Control of the Auxiliary Blowers

The auxiliary blowers are fitted onto the main en-
gine and controlled by a system comprising:
1 pc Control Panel
1 pc Starter Panel per Auxiliary Blower
2 pc Pressure Switches
Referring to the diagram of the auxiliary blower
control system, Fig. 14.02.02:
• The Control Panel controls the run/stop signals
to all Auxiliary Blower Starter Panels. The Con-
trol Panel consists of an operation panel and a
terminal row interconnected by a 1,200 mm long
wire harness.
• The Auxiliary Blower Starter Panels control and
protect the Auxiliary Blower motors, one panel
with starter per blower.
Alarm system
Telegraph system
Safety system
24V DC Power supply
from ship
Engine Control Room – ECR
Engine room
Aux. blower
starter panel 1
M
Auxiliary Motor
blower heater
Fig. 14.02.02: Diagram of auxiliary blower control system
MAN B&W MC/MCC, ME-B engines
Aux. blower
starter panel 2
M
Auxiliary Motor
blower heater
Power Power
cable cable
• The pressure switch 'P' controls the run/stop
signals, while pressure switch 'B' is part of the
auxiliary blower alarm circuit.
The control panel is yard's supply. It can be or-
dered as an option: 4 55 650.
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's
diagram, however, the physical layout and choice
of components has to be decided by the manu-
facturer).
Heaters for the blower motors are available as an
option: 4 55 155.
Control panel
Aux. blower
starter panel 3
M M
Auxiliary Motor Auxiliary
blower heater blower
Power
cable
MAN Diesel
On engine
PS 8603 Pressure switch P
PS 8604 Pressure switch B
Aux. blower Aux. blower
starter panel 4 starter panel 5
M
Motor Auxiliary Motor
heater blower heater
Power
cable
14.02
Page 2 of 3
Power
cable
513 53 301.0.0
198 65 86-2.3