Atlas Copco QAS 275-325, Instruction Manual

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– Put the remote start/stop switch in position start.
– The unit starts a preheating cycle which takes 12
seconds.
– After the preheating period, the unit will start. The
starting attempt will take maximum 12 seconds.
During operation Qc1002™
Following points should be carried out regularly:
– Check the engine gauges and the lamps for normal
readings.
– Check for leakage of oil, fuel or coolant.
– Avoid long low-load periods (< 30%). In this case,
an output drop and higher oil consumption of the
engine could occur.
– Check, by means of the generator gauges, that the
voltage between the phases is identical and that
the rated current in the third phase (L3) is not
exceeded.
– When single-phase loads are connected to the
generator output terminals, keep all loads well-
balanced.
If circuit breakers are activated during operation,
switch off the load and stop the generator. Check
and, if necessary, decrease the load.
Stopping Qc1002™
To stop the unit locally, proceed as
follows:
– Switch off the load.
– Switch off circuit breaker Q1.
– Let the engine run for about 5 minutes.
– Stop the engine by using the STOP button on the
Qc1002™ module.
– Put the starter switch S20 in position O (OFF) to
shut down the voltage apply towards the
Qc1002™ module.
– Lock the side doors and the door of the indicators
and control panel to avoid unauthorized access.
To stop the unit when the starter
switch is in position
, proceed as
follows:
– Switch off the load.
– Stop the engine by putting the remote start/stop
switch in position stop or by using the STOP
button on the Qc1002™ module. When the unit is
stopped with the STOP button in Remote Mode, it
will automatically go to Manual Mode.
– Put the starter switch S20 in position O (OFF) to
shut down the voltage apply towards the
Qc1002™ module.
– Lock the side doors and the door of the indicators
and control panel to avoid unauthorized access.
Operating Qc2002™
Starting Qc2002™
To start up the unit locally, proceed
as follows:
– Switch on the battery switch.
– Switch off circuit breaker Q1. This is not
necessary when a plant contactor is installed
between Q1 and the load.
– Put the starter switch S20 in position I (ON).
Voltage is applied to the Qc2002™ module.
– The unit can be started manually by pressing the
START button on the Qc2002™ module.
– The unit starts a preheating cycle which takes 12
seconds.
– After the preheating period, the unit will start. The
starting attempt will take maximum 12 seconds.
– Switch on circuit breaker Q1 in case no contactor
is installed.
Avoid to let the engine run out of fuel.
If it happened, priming will speed up
the starting.
The generator’s doors may only
remain opened for short periods
during operation, to carry out
checks for example.