32 6.7 Filter Maintenance - Bosch ACS 661 Originalbetriebsanleitung

en 48 | ACS 661 | Maintenance
6.7 Filter Maintenance
The filter is designed to trap acid and particulates, and
to remove moisture from refrigerant. To meet the man-
date for adequate moisture and contaminant removal,
the filter must be replaced after 150 kg (331 lb) of re-
frigerant has been filtered.
The ACS 661 gives a warning when 125 kg (276 lb) of
the filter capacity has been used; the ACS 661 locks
down when the 150 kg (331 lb) filter capacity has been
reached and will no longer function.
WARNING: To prevent personal injury while
working with refrigerant, read and follow
the instructions and warnings in this manu-
al, and wear protective equipment such as
goggles and gloves.
Check Remaining Filter Capacity
1. Select Filter Maintenance from the Setup Menu or
when the ACS 661 prompts.
 The ACS 661 displays
Remaining capacity: xxx.xyy
Replace filter now?
 The ACS 661 displays the amount of filter capaci-
ty remaining until the ACS 661 locks down.
2. Press F1 to change the filter.
3. Press F2 to resume using the ACS 661.
WARNING: The components in the ACS 661
are under high pressure. To prevent per-
sonal injury, change the filter only when
the ACS 661 prompts.
Replace the Filter
1. If F1 was selected to change the filter, the ACS 661
prompts for the new filter code to be entered.
 Enter new filter serial number
2. Use the keypad to enter the serial number that ap-
pears on the new filter and press F1 to continue.
 ACS 661 clears the existing filter.
 ACS 661 displays Turn power off and re-
place filter
.
i
If invalid serial number is displayed, the serial num-
ber has been incorrectly entered, or the filter has
already been used in this ACS 661.
3. Shut off the ACS 661.
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SP00D00171 2019-07-02
4. Remove the oil bottle.
5. Remove the 6 screws holding the shroud.
6. Remove the filter by turning the nuts on the at-
tached copper tubing counterclockwise. Disconnect
the nuts from the filter and move the tubing out of
the way.
7. Loosen the fastening screw on the filter locking col-
lar. Pull the filter out of the locking collar.
8. Verify the o-rings on the copper tubing are lubricat-
ed and not damaged. (The o-rings have been lubri-
cated using iso6743-3 dva / dvc oil.)
9. Install the new filter within the locking collar and
tighten the collar fastening screw. The filter MUST
be oriented so the direction of flow is downward,
from top to bottom.
1
Fig. 10: Filter maintenance
1 Filter
10. Connect the top and bottom copper tubing to the
filter. Tighten the fastening nuts to 20 Nm.
11. Recycle the filter that was removed from the
ACS 661 according to the laws in your jurisdiction.
Robert Bosch GmbH