ACS 561 Service Manual
Robert Bosch GmbH
SP00D00517
2018-07-11
23
Diagnostics and Testing
During this calibration, the airflow from the unit
fan is being measured by a smaller fan. The
out put voltage of the sensor fan is used to per-
form this calibration. If there is no airflow or the
airflow is below the acceptable minimum, the
calibration will fail with the following displayed:
Set Tank Tare
Tank tare is the empty weight of the ISV tank.
The tare is subtracted from the total weight of
refrigerant plus the tank to arrive at the amount
of refrigerant present in the ISV.
1. Scroll to Set Tank Tare in the Service Menu.
Press Select (F1). The following displays:
Press Retry (F1) to attempt another airflow
calibration, or press Exit (F2) to return to the
Service Menu.
3. If the airflow calibration is accepted, the fol-
lowing displays:
Press Exit (F2) to return to the Service Menu.
Confirm by pressing Save (F1).
Service Clear
Performing a Service Clear allows the unit to
perform a 1st Stage Recover. This is an auto-
matic process. When complete, the unit returns
to the Service Menu.
Service Vacuum
Perform Service Vacuum test with
Internal tank empty.
Service vacuum is a manually operated test
used to perform minor vacuum checks after
service is performed on the unit such as a part
replacement in the plumbing system. The ser-
vice hoses must be connected to the storage
ports for this test.
1. In the Service Menu, scroll to Service
Vacuum and press Select (F1). If the Inlet,
ISV, or Accumulator pressure is less than
or equal to 0.35 bar, the following displays:
Summary of Contents for ACS 561
Page 1: ...ACS 561 en Repair instruction A C Service Unit ...
Page 95: ......