ACS 553, ACS 563 Service Manual
1 689 975 295 2021-04-13Robert Bosch GmbH
95
Parts and Components
Supplies main power to the
unit.
Spring-loaded
safety valve to release pressure from internal
(362 psi).
Controls power to all
electrical components.
Measures the amount
of refrigerant in the ISV being charged into or
Used to view vacuum pump
oil level.
Allows
Allows
Energized
When
energized, allows refrigerant from ISV to enter
of system being serviced.
— Energized
at the end of the Recover process to drain oil.
When
energized, allows a vacuum or deep recovery
When
energized, provides the primary pathway of
removing refrigerant from the system being
serviced. This solenoid is also powered during
the Flush process.
When
energized, it returns compressor oil from the
compressor oil separator to the compressor
and equalizes the pressure on the high and low
side of the compressor.
Allows the unit to be turned
ON and OFF.
Monitors
the temperature inside the ISV.
Measures the pressure
within the system oil separator.
Measures the
system. Pressure readings are then relayed to
the control board.
Pump designed to removed
in the recovery process by performing a deep
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