Caleffi 524 - Manual (Page 15)

ENGLISH
15
MAINTENANCE
In service tests should be carried out regularly to monitor the mixer
performance, as deterioration of performance could indicate that the
valve and/or the system require maintenance. If, during these tests, the
temperature of the mixed water has changed significantly in comparison
with the previous test, the details given in installation and commissioning
sections should be checked and maintenance carried out.
The following aspects should be checked regularly to ensure that the
optimum performance levels of the valve are maintained. Every 12 months
at the last, or more often if necessary.
1. Check and clean the system filters.
2. Check that non-return valves are operating correctly, without
problems caused by impurities.
3. Limescale can be removed from internal components by immersion
in a suitable de-scaling fluid.
4. When the components which can be maintained have been
checked, commissioning should be carried out again.