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2 About this manual
2.1 Description of safety
pictograms
2.2 Abbreviations
2.3 Definitions
2.4 Directions
The driving direction has always been originated
with, when the sides of the unit are denoted. E.g. the
towbar is at the front and the User Interface is at the
rear right-hand side of the unit.
This symbol draws your attention to
dangerous situations. The operation
concerned may endanger persons
and cause injuries.
This symbol is followed by
supplementary information.
AC Atlas Copco
AIB Atlas Copco Instruction Book
ASB Service Bulletin
ASL Atlas Copco List
CAC Charge Air Cooler
CAN Controller Area Network Interface
ECM Engine Control Module
EOM Engine Operation Manual
HP High-pressure
LP Low-pressure
MAX Maximum
MIN Minimum
PAR Portable Energy Division
PC Personal Computer
RPM Revolutions Per Minute
Control unit This is the panel on the unit where
the User Interface, power switch, PC
connector, remote control connector,
heater switch and pressure setpoint
buttons are situated.
Technician Atlas Copco personnel allowed to
change settings of the control and
safety system.
Operator Atlas Copco personnel or user
allowed to operate the compressor
unit with the push-buttons.
Load Operating condition with inlet
compressor open and engine speed
regulated between minimum and
maximum.
Not loaded Operating condition with inlet
compressor forced to closed position
by operator command. The engine
speed is held at minimum.
Unload Operating condition with inlet
compressor forced to closed position
by working pressure command. The
engine speed is held at minimum.
ECM Engine Control Module. This is the
basic engine control module used for
the engine controls (emissions,
safeties, fuel injection, ...).
Pc4003™ Compressor Control Module. This
module is linked with the ECM and
is used for speed regulation and for
the compressor controls (unloading
system, safeties, ...). It can be
operated via PC or User Interface.
User Interface
setpoint
Max. working pressure setpoint
calibrated in the Pc4003™.
At this max. setpoint the engine
speed will be regulated between
max. and min. speed when running in
manual or automatic operation.
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