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62 | ACS 663 | Instructions for use
6.6
Recharging the A/C system of the
vehicle
WARNING: to prevent injuries while
working with the refrigerant, read and
follow the instructions and warnings in this
manual, and wear protective clothing, such
as safety glasses and gloves.
1. Call up the Main Menu.
2. Select
.
3. Enter the service data and select
vehicle data through the database. Confirm with
(see chapter 6.1).
4. Enter the quantity of refrigerant to be charged with
the numeric keypad.
5. Select the "type of charge" with the Down arrow
button and set with
charge the vehicle (high pressure side, low pressure
side or both sides).
6. Select
to continue.
7. Select
to enable the oil injection. If you set not
to perform the oil injection, go directly to phase 11
displaying.
8. Enter the amount of oil to be charged with the
numeric keypad.
9. Select the "oil type" with the Down arrow button
and set with
the oil to be charged (PAG or POE).
10. Type the measured ambient temperature and set the
viscosity of oil being used.
i
Make sure of entered values correctness in order to
guarantee the injection accuracy.
11. Select
to continue.
12. Select
to enable the UV dye injection.
i
The UV dye injection (timed) is performed with
a fixed dose of about 7.5 ml. However it can be
adjusted by double or half amount by "Dye injection
adjust" in the Settings Menu.
13. Select
to continue.
14. ACS 663 displays a dedicated message that asks to
the operator whether to perform the hoses flushing.
« Select
to proceed or
hoses flushing.
i
Follow the on-screen instructions to perform the
hoses flushing procedure.
|
SP00D00616
2019-11-08
to set the
the hoses to be used to
not to perform the
15. When the message appears, connect both service
hoses to the vehicle service connections and open
the valves of the service hoses turning the ring nuts
clockwise.
!
The charging function, if accompanied by oil
injection, can only be carried out on the high
pressure side or on both sides.
i
In systems provided with only a low pressure
connection, after charging, wait at least 10 minutes
before operating the air conditioning system of the
vehicle.
!
Before performing any oil or UV dye injection make
sure a proper quantity is available into the respective
bottle.
i
Fill only through the high pressure connection (if
possible) or always follow the vehicle manufacturer's
instructions.
!
Always follow the vehicle manufacturer's instructions
before changing the amount of oil.
!
Prior to the addition of UV dye, it is absolutely
necessary to check if an air-conditioning leak test
with UV contrast agent is permitted according to the
vehicle manufacturer.
i
New oil and UV dye can only be added in a vacuum
air conditioner. Prior to the addition of oil/UV dye, it
is necessary to create a vacuum.
16. Select
to start the charging procedure.
« When the charge cycle is close to the desired
weight value, the station slows down, alternating
charging and settling phases, etc.
i
At this point, if the vehicle is moved or hit, it is
possible to obtain an inaccurate charge.
17. When the message appears, close the service
hose connections turning the ring nuts counter-
clockwise. Disconnect the service hoses from the
A/C system and connect them to the station flushing
connections.
18. Select
to start the hoses cleaning.
19. ACS 663 displays, at the end of the hoses cleaning,
a dedicated message that indicates to the operator
the procedures to be performed to start the
pressures test (see chapter "Pressures test").
« Select
to proceed or
pressures test.
20. At the end the ACS 663 displays a screen with the
charge result report.
not to perform the
Robert Bosch GmbH
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