BWT Avanti HWS Instrucciones De Montaje página 14

Maintenance Maintenance Maintenance
Maintenance Maintenance
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All technical equipment requires regular
maintenance. In accordance with DIN 1988 this
must always be carried out by specialist personnel
who also replace the parts subject to wear and tear.
Maintenance must be carried out once a year, in the
case of communal units twice a year.
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Fault Fault
Fault Fault Fault
Water pressure in system has
dropped considerably;
Water pressure drops consi-
derably when water is bled
(by more than 35% of the static
pressure)
Flushing water outlet cannot be
closed
Water pressure rises above the
setpoint.
If the fault cannot be rectified using these notes, please contact a specialist firm or our Customer If the fault cannot be rectified using these notes, please contact a specialist firm or our Customer If the fault cannot be rectified using these notes, please contact a specialist firm or our Customer If the fault cannot be rectified using these notes, please contact a specialist firm or our Customer If the fault cannot be rectified using these notes, please contact a specialist firm or our Customer
Service. Service. Service.
Service. Service.
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In the event of a failure during the warranty period,
please contact our after-sales service department,
stating the appliance type and the production number
(see Specifications and/or rating plate of the
appliance).
Work performed under warranty may only be Work performed under warranty may only be Work performed under warranty may only be Work performed under warranty may only be Work performed under warranty may only be
carried out by the after-sales service department. carried out by the after-sales service department. carried out by the after-sales service department.
carried out by the after-sales service department. carried out by the after-sales service department.
Work performed under warranty by a specialist
company require the express consent by our after-
sales service management.
Cause Cause
Cause Cause Cause
Dirty filter element
Backwash element does not
reach final position due to coarse
dirt particles
Settling and/or wear of the
sealing elements
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Solution Solution
Solution Solution Solution
Carry out backwash
Fully open and close turning
knob;
repeat backwash several
times
Re-adjust back pressure
(see Startup)
If the pressure continues to
rise the valve insert (1 1
must be replaced
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