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illilUli
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AALBORG
EMERGENCY
OPERATION
OM5560J5#A.2
INDUSTRIES
Emergency operation
1
2
21-44/60
General
In the rare event
of
a total break down
of
the control system, the burner unit with
belonging
~ystems
can be operated in manual operation (also called emergency oper-
ation). Due to the fact that the majority
of
the safety interlocks trips and alarms are
overruled in emergency mode, the safety precautions for the plant must be observed
very carefully.
.
Please
note
that
in
emergency
operation
mode
the
safety interlocks
are
reduced
to:
• Too low water level
• Flame failure
•
Low
combustion air pressure
Warning:
When
the
burner
operates
in
emergency
mode,
it
is
very
important
that
the
boiler
plant
is
carefully
and
continuously
supervised
by
the
ship
engineering personnel.
Pay
special attention to
the
steam
pressure
and
water
level.
In emergency mode, the burner unit and supply systems are operated from inside the
(local) control panel and the power panel. Various operating switches are provided
inside the panels for operating purposes.
Before emergency operation
of
the burner is initiated, attempts to restart the control
system must be performed. Ifrestart
of
the control system
is
impossible, the work steps
of
the following sections must be followed.
Manual operation
of
the burner
2.1
Start and
stop
of
the
burner
2.1.1
Start
of
the
burner
Step
A: Turn the "/MANUAL" key-operated switch inside (or mounted on the front
of)
the control panel into position manual.
Step
B:
Stm1
one
of
the fuel oil pumps on the operating switch inside (or mounted
on the front of) the power panel, "FUEL OIL PUMP
1 START/STOP" or
"FUEL OIL PUMP 2 START/STOP".
Step
C:
Switch the selector "BURNER MOTOR"
to
position "ON", andthe burner
motor starts.
Language
UK
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