Flotec EVOTRONIC 350 Manual De Instrucciones página 23

Pump installation below the liquid lev-
el (negative suction head) Figure 1
1. Close the shutoff valve downline of the
pump (delivery side).
2. Open the shutoff valve upline of the
pump (suction side).
3. Loosen the filler cap to enable release
of the air, then fill the pump body and
suction line completely with liquid, un-
til it overflows from the hole.
4. Tighten the filler cap fully down.
5. Start up the pump and slowly open the
shutoff valve downline (delivery side) to
ensure bleeding of any residual air in
the pump body and accumulated pres-
sure during start-up.
The pump must never be operat-
ed with the shutoff valve on the
delivery side closed. The dis-
charge valve must be opened as soon as
the pump has been started up, to prevent
damage to the latter by an excessive in-
crease in liquid temperature.
Installation of self-priming pumps
above the liquid level (positive suction
head) Figure 2 and "Installation" Tab1.
1. Ensure that the pipeline downline of
the pump is free (delivery side)
2. Open the shutoff valve downline of the
pump (delivery side).
3. Open the shutoff valve upline of the
pump (suction side). refer to installa-
tion Figure 2.
4. Open the valve near the pump to bleed
the air.
5. Remove the filler cap. If a filler cap is
fitted on the pipeline downline of the
pump (delivery side), remove the cap
and use the hole for filling. Otherwise
use the pump filling hole.
6. Using a funnel, fill the pump body and
suction pipe (Figure 2), or only the
pump body (Figure 3) completely with
liquid, until it overflows from the hole.
7. Close the pump filler cap.
8. If the filler hose is on the pipeline, con-
tinue to fill the pipe and pump until
water overflows also from this second
hole.
9. Insert the second filler cap.
10. Start up the pump and wait for the
liquid to be pumped. The pump can
run for 5 minutes to attempt to acti-
vate liquid suction. If the pump does
not generate pressure and flow rate,
repeat steps 1 to 10.
If there is no foot valve or check
valve on the suction port, filling
must be repeated before each
start-up.
If the pump has difficulty in in-
creasing pressure, repeat opera-
tions 1 to 10. If, after several at-
tempts, the pump does not operate
correctly, see the fault section "quick
troubleshooting guide"
Pump start-up
Use the electric pump according
to the performance specifica-
tions as stated on the data plate.
Always avoid operation of the
pump with the upline shutoff
valve closed (suction side). Dry
running of the pump can lead to over-
hearing and damage to the pump itself.
Never run the pump with the
shutoff valve downline (delivery
side) completely closed. In this
case, the water in the system reaches
very high temperatures, with the risk of
damage to equipment and scalding in the
ENGLISH
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