Atlas Copco QAS 275-325, Instruction Manual

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To start up the unit from a remote
location, proceed as follows:
– Put the starter switch S20 in position I (ON).
Voltage is applied to the Qc2002™ module.
– Switch on circuit breaker Q1.
– For remote start:
• Put the unit in Island mode. Push the
AUTOMATIC button. Use an external switch
to start the machine.
or
• Put the unit in AMF mode. Push the
AUTOMATIC button. The machine will start
automatically when Mains fails.
– 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 Qc2002™
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 Qc2002™
To stop the unit , 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
Qc2002™ module.
– Put the starter switch S20 in position O (OFF) to
shut down the voltage apply towards the
Qc2002™ module.
– Lock the side doors and the door of the indicators
and control panel to avoid unauthorized access.
To stop the unit when the Qc2002™
module is in AUTOMATIC operation
mode, proceed as follows:
– Switch off the load.
– For remote start:
• When operating in Island mode, use the
external switch to stop the machine.
• When operating in AMF mode, the machine
will automatically stop when the Mains
returns.
– Cooldown period default 15 sec.
– Put the starter switch S20 in position O (OFF) to
shut down the voltage apply towards the
Qc2002™ module.
– Lock the side doors and the door of the indicators
and control panel to avoid unauthorized access.
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.
When the unit is stopped with the
STOP button in Automatic
operation, it will automatically go to
Manual Mode.