ACS 653, ACS 663 Service Manual
SP00D00624
2021-04-08
Robert Bosch GmbH
111
Plumbing and Mechanical
Figure 4-19. Pre-Charge
PRE-CHARGE PROCESS (for R1234yf only if enabled)
During the pre-charge process (before to perform the charge), the unit charges a small amount of refrigerant in the
A/C system and performs a pressure test to check any leaks.
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ir
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ir
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ort
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igh
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d
RI variants only