Bosch ACS 553 User manual

en Repair instruction
A/C Service Unit
ACS 553 - ACS 553-P - ACS 563 - ACS 563-P

ACS 553, ACS 563 Service Manual
1 689 975 295 2021-04-13 Robert Bosch GmbH
2
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Robert Bosch GmbH
Franz-Oechsle-Straße 4
1119D-73201 Plochingen
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ACS 553, ACS 563 Service Manual
1 689 975 295 2021-04-13Robert Bosch GmbH 3

  4
 7
   7
   7
   
  9
 
   
   
  
 
   
   39
   
 
 
   
  
 
   
   79
   
  94
  

ACS 553, ACS 563 Service Manual
1 689 975 295 2021-04-13 Robert Bosch GmbH
4

Carefully read all instructions.
Do not use in open air in case of rain or high humidity.
Wear gloves.
Wear protection goggles.
Alternating voltage.
Grounding protection.
Electrical shock hazard.


Safety signal words designate the degree, or level, of hazard seriousness.
: Indicates an imminently hazardous situation which, if not avoided, will result in
death or serious injury.
: Indicates a potentially hazardous situation which, if not avoided, could result
in death or serious injury.
: Indicates a potentially hazardous situation which, if not avoided, may result in
minor or moderate injury.
: Used without the safety alert symbol indicates a potentially hazardous situation which,
if not avoided, may result in property damage.
These safety messages cover situations Bosch is aware of. Bosch cannot know, evaluate, or
advise you as to all possible hazards. You must verify that conditions and procedures do not
jeopardize your personal safety.

ACS 553, ACS 563 Service Manual
1 689 975 295 2021-04-13Robert Bosch GmbH 5
Beforeoperating
the machine, read and follow all instructions and warnings in this manual. The operator must
be familiar with air conditioning and refrigeration systems, refrigerants, and the dangers of
pressurized components. If the operator cannot read this manual, all operating instructions
and safety precautions must be read and discussed in the operator’s native language.
 Using the machine in a manner for
which it was not designed will compromise the machine and nullify the protections provided.




Contact with
refrigerant may cause personal injury, including blindness and frozen skin. Wear protective

Ensure the phase has been completed before disconnecting the machine to prevent the
release of refrigeration to the atmosphere.
 Refrigerant


󰀨
mechanical ventilation that provides at least one air change per hour. If accidental system
discharge occurs, ventilate the work area before resuming service.
 Such a precaution
is necessary to prevent the possible presence of refrigerant in the working environment.
The refrigerant R1234yf (for ACS 563 only) is heavier than air and tends to concentrate
in the pits of the workshop.
do not use the machine in the vicinity of spilled or open



with a minimum size of 14 AWG.

hot surfaces.

, do not use the machine in environments containing

D
or areas. Protect the machine from conditions that may cause electrical failure or other
hazards relating to ambient interaction.
 