General Maintenance; Electrical Protection; Tank Fill - Bosch ACS 653 Repair Instruction

ACS 653, ACS 663 Service Manual

General Maintenance

Do not use abrasive cleaning agents, solvents
(petrol, diesel, etc.) and coarse workshop cloths
to clean the machine. Clean only using a soft
cloth and neutral cleaning agents.
NOTE: In cases of refrigerant leaks, such
as during installation, maintenance or repair
of machine, or even during normal use after
machine rest, there will be no refund by the
manufacturer.
CAUTION: Disconnect the power
supply before any maintenance.

Electrical Protection

The machine is equipped with a circuit breaker
to the side of the machine below the ON/OFF
switch. If the breaker trips, its button will pop
out. A tripped circuit breaker will cause the
machine to lose all power. Press the circuit
breaker button to reset. If the circuit breaker
does not reset or continues to trip, there is a
fault in the unit electrical system. Troubleshoot
and repair the affected component(s).

Tank Fill

This menu (available on Function menu) is
used to transfer refrigerant from a source tank
to the ISV.
1. Call up the Main Menu.
2. Select NEXT icon.
3. Select MENU icon.
4. Select TANK FILL from the Functions
Menu. The machine displays:
FILL AMOUNT: xx.xxyy
RECOVER CAPACITY: xx.xxyy
CHARGE CAPACITY: xx.xxyy
5. Enter the fill amount (at least 5 kg) to ensure
enough liquid refrigerant is available for
charging and select OK icon. Unit is set
with 2.2 kg dead space (first 2.2 kg are not
shown on display anymore). If the source
tank is empty, or has insufficient refrigerant
for transfer, tank fill will stop.
6. Connect the low pressure service hose (blue)
to the liquid connector on a full source tank.
7. Position the source tank in such a way
that liquid refrigerant is supplied to the
connection. Open the source tank valve.
Robert Bosch GmbH
8. Select OK icon to start the tank fill process.
9. The machine (for ACS 663-RI only) checks
the refrigerant in the source tank to verify
it is R1234yf and not contaminated.
The machine displays the following screens:
INITIALIZING REFRIGERANT IDENTIFIER
ANALYZING REFRIGERANT SAMPLE
REFRIGERANT PURITY PASSED
10. The machine begins filling the internal
storage vessel (ISV) and automatically
stops when the preset tank fill level is
reached. To stop the tank fill before the
preset level is reached, select PAUSE icon.
1
Figure 1-3. Contaminant recovery outlet port
11. Close the liquid valve and remove the hose
from the source tank.
12. Select OK icon to return to the Function Menu.
Operating Tips (for ACS 663-RI only)
1. If the machine displays
REPLACE IDENTIFIER FILTER
• the refrigerant identifier filter must be
replaced. Select OK icon to confirm, and
refer to the "Internal Refrigerant Identifier
Maintenance" in this section.
2. If the machine displays
REFRIGERANT PURITY FAILED
RECOVER CONTAMINATED
REFRIGERANT FROM SYSTEM AND HOSES
• the refrigerant in the source tank is
either not R1234yf or it is contaminated.
In either case, it should not be added to
the internal storage vessel in the machine.
The refrigerant purity is 95%.
15
Introduction
SP00D00624 2021-04-08