10. Emptying The Acs 810; Automatic Emptying; Extraction Of Internal Refrigerant Circuit With Second A/C Service Unit - Bosch ACS 810 Repair Instructions

10. Emptying the ACS 810

!
When repairing internal components, we
recommend extracting the internal hoses on the
ACS 810 to ensure that no refrigerant can escape
when the hose lines are opened.
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This extraction is carried out by automatic
emptying or, if there is a technical defect, by using
a second A/C service unit.
Warning – Risk of frostbite from escaping
refrigerant
Refrigerant causes severe frostbite on the
skin.
¶
Check the service hoses for damage.
¶
Firmly connect the service quick-release
couplings to the service hoses.
¶
Wear safety goggles.
¶
Wear protective gloves.
10.1

Automatic emptying

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Refrigerant in the internal hoses is extracted into
the internal refrigerant cylinder.
1. Service hoses (T1, T2) are not connected to the
vehicle.
2. Close service quick-release couplings.
3. Open HP and LP valves on the ACS 810.
4. Start recovery.
"
Automatic emptying is performed.
Robert Bosch GmbH
Emptying the ACS 810 | ACS 810 | 23 |
10.2 Extraction of internal refrigerant
circuit with second A/C service unit
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If recovery cannot be performed due to a defective
compressor, a second A/C service unit or an
external compressor is required to remove the
refrigerant from the internal refrigerant circuit. To
do this, start the "Recycle" function to open the
corresponding solenoid valves.
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The compressor power supply for the ACS 810
must be disconnected before extraction.
1. Close shutoff valves V1, V3, V2, and V4 on the
refrigerant cylinder and disconnect the blue and
red hoses from the refrigerant cylinder.
2. Connect the blue hose to the low pressure side of
the second A/C service unit.
3. Connect the red hose to the high pressure side of
the second A/C service unit.
4. Open the valves V1 and V2.
5. Open both valves on the second A/C service unit
and recover the refrigerant from the first, defective
A/C service unit.
 A pressure increase test is performed at the end
of recovery.
6. Close the two valves on the second A/C service
unit and disconnect the hoses from the refrigerant
cylinder.
"
Repairs can be performed.
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1 689 975 253 2021-01-26