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128 | ACS 651/751 | Technical data
9.
Technical data
Property
Operating voltage
Frequency
Refrigerant
R134a scale
Pressure sensor PTV (For ACS 651/751)
Pressure sensor PTA (For ACS 651/751)
Pressure sensor (For ACS 651/751)
LP manometer
HP manometer
Refrigerant cylinder capacity
Maximum system pressure PS
Pset
Medium group
Power
Permissible ambient temperature TS
Optimum filling weight of R134a for
operation
i
The ACS 651/751 adheres to Low Voltage Directive
(LVD).
Dimensions and weights
Unit type
Dimensions
H x W x D (mm)
ACS 651
1261 x 652 x 778
ACS 751
1261 x 652 x 778
|
1 689 988 238
2012-11-06
10. Glossary
R
Value/Range
Recovery phase
230 V
The refrigerant is extracted from the vehicle A/C
50 / 60 Hz
system, cleaned and filled to the internal refrigerant
R134a
cylinder on the ACS 651/751. The recovered
50 kg
refrigerant oil is discharged into the used oil bottle
VAC to 10.3 bar
on the ACS 651/751.
R
VAC to 10.3 bar
Vacuum phase
0 to 34.5 bar
A vacuum is generated in the vehicle A/C system.
Once the vacuum is created, the pressure drop mea-
-1 bar - 15 bar
± 1% of final value
surement is started.
-1 bar - 34 bar
R
Oil injection phase
± 1% of final value
Refrigerant oil is injected into the vehicle A/C system
22 l
refrigeration circuit.
20 bar
R
UV dye injection phase
18 bar
A specified quantity of UV dye is added to the vehicle
Group 2
A/C system.
900 W
R
Filling phase
5
C - 50
C
O
O
A specified quantity of refrigerant is filled into the
5 kg - 9 kg
vehicle A/C system.
R
Delta oil
The quantity of oil that needs to be topped up in the
vehicle A/C system. The delta oil quantity depends
on the quantity of oil recovered during the recovery
phase.
R
Absolute oil
The quantity of refrigerant oil that needs to be
Weight (kg)
added to the vehicle A/C system after service. This
quantity is independent of the quantity recovered
110
during the recovery phase.
110
R
SAE J2788 standard
The SAE J2788 standard specifies the minimum
performance requirements for recovery and recharge
of R134a in vehicle A/C system service using A/C
service
R
Air purging
The process of removing the non-condensable gases
from the refrigerant tank of the ACS 651/751.
R
Pset
The maximum pressure at which the compressor
switches off. For the ACS 651/751, the maximum
pressure value is 18 bar.
R
Absolute oil
The quantity of absolute oil can be set either in the
automatic mode or in the manual mode.
The quantity of compressor oil to be charged into
the vehicle A/C system. The quantity of absolute oil
is specified in the service parameters.
The quantity of compressor oil that is recovered
from the vehicle A/C is not considered.
If compressor oil need not be fed into the vehicle
A/C system, the value of absolute oil in the service
parameters is "0 ml".
equipment.
Robert Bosch GmbH
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