Mobile reverse osmosis system
AVRO-flex 400
Order no.
095 752 946-inter Edited by: phar-mrie G:\BA-752946-INTER_095_AVRO-FLEX_400.DOCX
43
Check the system’s tightness to the drain. Solenoid valves are not
tightened, visible in the display (refer to fig. F-2, items 9 and 10). In
this state, no water must creep to the drain.
Note
:
Leaky solenoid valves will cause the system to consume more
water. The recovery will be reduced.
3 | Maintenance
According to DIN 1988 part 8 / A 12, maintenance work at the sys-
tems may only be performed by Grünbeck’s technical service/author-
ised service company or an approved specialist company.
For this kind of systems, an operation log - a checklist has to be kept.
In this operation log, the customer service technician records all
maintenance and repair work performed. In case of malfunctions, this
log helps to identify possible sources of error. In addition, the log doc-
uments the proper system maintenance.
Note:
Make sure that all maintenance work is recorded in the opera-
tion log as well as in the corresponding test log.
Summary: Maintenance work
Replace the filter element.
If necessary, replace the filter element of the activated carbon filter.
Check the permeate quality; flush or replace the membrane, if nec-
essary. So-called flushing instructions (order no. 700 950) are avail-
able for authorised service personnel.
Replacement of AVRO treatment unit, if necessary
(limit value: 3000 h or 5 years)
Solenoid valves – check function, clean if necessary.
Check the flow volumes and recalibrate the water meters.
Check the state of the entire system and check the entire system
for tightness.
Mechanical resp. electrical functional and performance check of all
aggregates (pumps, valves).
Prepare a written maintenance log on the state and function of the
system and the maintenance work performed, incl. evaluation and
assessment of the operating values and water analysis results.
Note:
The maintenance work performed must be documented in the
checklist, refer to appendix "Operation log".
