ATB AQUAmax BASIC series, Руководство по эксплуатации и обслуживанию, Страница: 27 / 40

Operation and maintenance manual AQUAmax
®
BASIC/CLASSIC
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0210 / Status: 30.01.2019 / Page 27 from 40
Rectification of Faults
Fault Possible cause Rectification
The water level in the primary
settling stage is unusually high,
whereby a normal water level is
present in the aeration stage.
•
The charging pipeline is
leaking and draws in air.
•
Check the screw
connection for tightness. If
a hose is available as
charging line the securing
of the hose and the leak
tightness of the hose should
be checked.
•
The charging pipeline is
blocked.
•
The water transmissibility
can be checked in manual
operation.
•
The submersible motor
pump is defective.
•
Call the Service.
•
There is air in the impeller
chamber of the pump. This
condition can be detected
through a gurgling sound.
The bleeding of this
chamber is ensured through
a small drilling in the lower
third of the pump casing.
•
Remove AQUA
max
®
and
check the drilling, if
required, clean.
The water level in the primary
settling stage and in the
aeration stage is unusually
high. The control system
indicates “Flooding alarm”.
•
Unusually high infiltration
water inflow. With heavy
rainfall due to surface water
or rain-sodden ground due
to leaking concrete tank.
•
Infiltration water may not
ingress into the wastewater
treatment plant over a
longer period. If necessary,
seal concrete tank or
remedy other causes.
•
The submersible motor
pump is blocked or
defective.
•
Check the pump with
manual operation, if
required, call Service.
•
There is a back-up at the
discharge point. The water
conveyed by the pump flows
back again.
•
The discharge point must be
made free again.
The water level in the primary
settling stage and in the
aeration stage is unusually
high. The control system
indicates “Energy-saving
operation”.
•
The float switch cannot float
up because it is limited its
freedom of movement.
•
Check the float switch (see
Manual Mode). Æ Does not
apply for BASIC.
•
The float switch is defective
or the cable is interrupted.
•
Call Service.
The water levels in the primary
settling stage and in the
aeration stage are always the
same, although water flows into
the primary settling stage.
•
The partition wall between
aeration stage and primary
settling stage is not
watertight.
•
Close partition wall slits and,
if necessary, reseal partition
wall joints.
•
The hydraulic system in the
AQUA
max
®
for the
interruption of the charging
pipeline is impaired.
•
Call Service.