Glossary; Setup Menu - Bosch ACS 653 Repair Instruction

Introduction
BLUETOOTH indicates that the
Bluetooth connection is enabled.
HS LS to set which side to charge
thru (high pressure, low pressure or
both sides).
ml oz to set the unit of measurement
(ml or oz).
kg oz lb to set the unit of measurement
(kg, oz or lb).
USB to export data onto a USB key.

Glossary

A/C System: The vehicle air conditioning
system being serviced.
Evacuation: Moisture and other incondensables
are removed from an A/C system by using a
vacuum pump.
Internal Storage Vessel (ISV): The tank
designed specifically for this machine has
refrigerant disposable capacity of 17.4 kg,
except the ACS 653 has a disposable capacity
of 19.4 kg.
Machine: Model No. ACS 653 or ACS 663.
PAG/POE: Different oil types in the vehicle
air-conditioning system depending on the
vehicle manufacturer.
Recovery/Recycling: Refrigerant is recovered
from an A/C system, filtered, and stored in the
ISV.
Refrigerant: R134a (ACS 653) or R1234yf.
Source (or External Tank): A disposable tank
of new refrigerant used to refill the ISV; not
included.
SP00D00624 2021-04-08
ACS 653, ACS 663 Service Manual

Setup Menu

The machine launches into the initial Setup
mode (the first time the machine is powered up).
NOTE: It is needed to complete all the setup
procedure sequence before to use the A/C unit.
Carry out the following setup:
1. Language selection.
2. License agreement review.
3. Units (Metric/Imperial) selection.
4. Date and Time adjustment.
5. Edit Print Header.
6. Identifier setting (except the RI and R134a
variants).
7. Service Vacuum.
8. Internal Tank Fill.
At the end of the initial setup procedure it is
suggested to:
• Perform air flow calibration (for R1234yf
only).
Functions Menu
1. Call up the Main Menu.
2. Select NEXT icon.
3. Select MENU icon.
• Select Functions to access the following
functions.
A/C Perfomance Test
Performs a pressure test on an A/C system of
a vehicle with a refrigerant already present.
N2H2 or N2 Test (only if enabled)
To search the leaks of the A/C system of a ve-
hicle by means of an external bottle of Nitrogen
or a mixture of nitrogen and hidrogen.
Flush Hoses
Flushes residual oil from the machine to prepare
for the service of next vehicle.
System Flush
Provides a method of removing oil and impurity
by forcing liquid refrigerant through an A/C
system or components of an A/C system. After
flushing, the refrigerant is recovered by the
machine and filtered by the recycling circuit.
Tank Fill
Use this function to transfer refrigerant from a
source tank to the ISV. The tank fill value may
be adjusted up or down to suit the user's needs.
Refer to "Tank Fill" in the Maintenance section.
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Robert Bosch GmbH