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AALBORG
INDUSTRIES
Language UK
COMMISSIONING OM5560_97#A.2
Step I: The oil pump must be filled with diesel oil prior to operation. The vent valve
installed on the outlet side
of
the pump unit must be opened until the air has
escaped from the suction side
of
the pump. As soon as diesel oil emerges,
the vent valve may be closed.
Step
J:
Start the oil pump and check that it is running with the correct direction
of
rotation. Open the vent valve again until only diesel oil emerges.
Step K: Adjust the oil pressure in the ring line on the pressure regulating valve to
minimum 20.0 barg and maximum 25.0 barg at the burner for diesel oil.
Note:
The
pressure
relief valve installed in each
pump
is
factory set
and
checked
and
should
not
be adjusted
during
commissioning.
Step L: Flush the oil system for some time with the oil pump in operation. The total
flushing time should be determined with regard to the size
of
the oil system
and the amount
of
impurities (particles, grease, etc.). Check the complete
oil system for leaks.
Step M: When flushing is completed, stop the operational oil pump and clean the oil
filters in the fuel oil supply pump unit. Vent the oil pumps after the filters
have been cleaned.
1.3.1 Check
and
adjust
the
pressure
transmitter
Step A: Open the quick closing valves for the burner unit.
Step B: Check that the oil pressure indicated on the control panel is identical to the
pressure indicated on the pressure gauge in the oil line.
Step
C:
Adjust the zero point and/or the span on the oil pressure transmitter
if
nec-
essary.
1.3.2
Check
the
low
and
high
alarm
for
oil
pressure
and
start
of
stand-by
oil
pump
Step A: Check and adjust the set point for low and high alarm in the control system.
Step B: Start the oil pump and set the other pump into stand-by mode.
Step C: Decrease the oil pressure on the pressure regulating valve gradually until the
set point
is
reached. The operating oil pump should stop, and the pump in
stand-by mode should start. The control system should indicate an alarm.
Readjust
if
necessary .
. Step D: Switch operation mode
of
the pumps and carry out the same procedure.
1.3.3 Check
the
low oil
pressure
shut
down
and
trip
function
Step A: Check and adjust the set point for low shut down and trip in the control
system.
Step B: Decrease the pressure somewhat more until the set point
is
reached. The
operating stand-by pump should stop, and a shut down should be indicated
on the
control system. Readjust
if
necessary.
Step C: Readjust the oil pressure to approximately 25.0 barg on the pressure regu-
lating valve and reset the alarms and shut downs.
1.3.4 Check the
trip
function for overload
Step
A:
Check the trip function for overload
by
pressing the test button for the pump
in
operation
on
the circuit breaker.
Step B: The pump stops, and a shut down for pump failure should be indicated
in
the control system.
Step C: Reset the circuit breakers and
all
shut downs after testing.
21-49/60·
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