Reverse osmosis system
AVRO 125 TS/TL
Order no. 185 752 945-inter Edited by: nkes-mrie G:\BA-752945-INTER_185_AVRO_125.DOCX
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Make sure that there are no leakages from the system to the drain
(all 3 waves can be seen on the display when the system is
switched off (refer to fig. F-2, point 5). Solenoid valves are not
tightened, visible in the display (refer to fig. F-2, no. 9 and 10).
In this state, no water must creep to the drain.
Note:
There can be increased water consumption by the system if the
solenoid valves are leaking. The recovery will be reduced.
3 | Maintenance
According to DIN 1988 part 8 / A 12, maintenance work at the systems is
only allowed to be performed by Grünbeck’s technical service/authorised
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
documents the proper system maintenance.
Note:
Make sure that all maintenance work is recorded in the
operation log as well as in the corresponding test report.
Summary: Maintenance work
Replace the 80/50 µm resp. 5 µm filter elements.
If necessary, replace the filter element of the activated carbon filter.
Check the permeate quality; flush or replace the membrane,
if necessary. So-called flushing instructions (order no. 700 950) are
available for authorised service personnel.
Replacement of AVRO treatment unit, if necessary
(limit value: 3000 h or 5 years).
Clean the solenoid valves - check their function.
Check the flow volumes and recalibrate the water meter.
Check the state of the entire system and check 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.
