Flotec EVOTRONIC 350 Manual De Instrucciones página 26

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ENGLISH
MAINTENANCE
Before any intervention on the
system, disconnect the electrical
mains. Wait 2 min, the led LINE
must be OFF. Ensure that the electrical
power supply cannot be restored inadver-
tently.
Refer to the "safety instructions".
•   In normal conditions, the electric
pumps do not require any scheduled
maintenance.
•   With a view to prevention of possible
faults, it is recommended to period-
ically check the pressure delivered
and current absorption. A reduction
in pressure is symptomatic of pump
wear. An increase in current absorp-
tion is symptomatic of abnormal
mechanical friction in the pump.
•   Special maintenance may be required
to clean the pump and replace any
worn parts.
•   If the pump is not used for prolonged
periods (e.g. for an entire season) it
should be drained completely rinsed
with clean water and stored in a dry
location.
At least twice a year, inspect the expansi-
on tank and check the pre-charge pres-
sure, sealing efficiency of the joints and
all areas for visible signs of damage and/
or corrosion. To check the pre-charge
pressure, turn off the pump and drain all
water from the system until the system
water pressure has returned to zero. On
completion of the check, restore the sys-
tem to normal conditions.
26 26
QUICK TROUBLE-
SHOOTING GUIDE
Refer to the "safety instructions".
Water leaks from the air valve of the
expansion tank when checking the gas
pressure
•   The membrane inside the tank is
damaged => replace the internal
membrane of the tank or replace the
tank itself
The pump does not work
•   No power supply => turn on the switch
and check that no electrical connec-
tions are loose or defective.
•   Check the mains voltage
•   Fuse blown => check that the ca-
bles and relative connections are
not defective and replace the fuse if
necessary
•   Motor overload cutout has tripped
=> check that the cables and relative
connections are not defective, check
that the pump is not blocked mechan-
ically, or whether the pump winding is
damaged (replace if necessary)
•   Electrical power line damaged =
replace
•   Pump blocked mechanically => clean
•   Control device faulty => replace
•   Electronic Control device has started
=> see section " The pump stops after
a short interval of operation due to a
tripped protection device"
The pump stops after a short interval
of operation due to a tripped protec-
tion device
•   Excessive current absorption => check
the operating condition of the pump

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