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9 Options available for QAS 200-250 Volvo units
9.1 Circuit diagrams
The engine control circuit diagrams and the power
circuit diagrams for the standard QAS 200-250 Volvo
units, for the units with options and for the units with
combined options are:
Controller circuit
Unit Circuit
QAS 200-250 Qc1002™ 9822 0993 25
QAS 200-250 Qc2002™ 9822 0993 26
QAS 200-250 Qc1103™ 1636 0052 38
QAS 200-250 Qc2103™ 1636 0052 40
QAS 200-250 Qc4002™ MkII 1636 0041 02
Power circuit
Unit Circuit
QAS 200-250 Qc1002/2002™ 9822 0993 02
QAS 200-250 Qc1103/2103™ 1636 0041 39
QAS 200-250 Qc4002™ MkII 1636 0041 02
9.2 Overview of the electrical
options
The following electrical options are available:
– Automatic battery charger
– Engine coolant heater
– Outlet sockets (S)
– “Electricité de France” (EDF)
–COSMOS™
– Power Transfer Box (PTB)
9.3 Description of the electrical
options
9.3.1 Automatic battery charger
The automatic battery charger charges the battery
completely and is disconnected once the unit starts
up.
Besides the output terminals (secondary side) the
automatic battery charger has a trim potentiometer for
setting of the output voltage. By means of an insulated
slotted screwdriver or adjusting pin the output voltage
can be set in the range.
Setting:
– Lower output voltage = counter clockwise
rotation
– Higher output voltage = clockwise rotation
The LED on the front indicates that the unit is
operational.
To use the battery charger:
– Provide the X25 connector, located at the side of
the power cubicle, with external power to use the
battery charger.
9.3.2 Engine coolant heater
To make sure that the engine can start and accept load
immediately, an external cooling water heater
(2000 W, 240 V) is provided which keeps the engine
temperature between 38°C and 49°C.
DEIF
-power in control
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