Pump Priming - Pentair STA-RITE FP/MULTIEVO-A Serie Manual De Instrucciones

EN
CHAPTER 5
OPERATION

PUMP PRIMING

DANGER
The pump must only be started up after it is filled with liquid.
DANGER
If the pump has not been used for a prolonged period, the filling operation should be repeated before starting up.
Pump installation below the liquid level (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).
DANGER
The pump must never be operated with the shutoff valve on the delivery side closed. The discharge valve must be opened as
soon as the pump has been started up, to prevent damage to the latter by an excessive increase in liquid temperature.
Installation of self-priming pumps above the liquid level (positive suction head) Figure 2, Figure 3 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
installation Figure 2.
4. Open the valve near the pump to
bleed the air.
The check valve in Figure 3 serves to prevent emptying of the pump under a siphon effect at the time of shutdown, so that liquid stays
in the pump body for subsequent start­up.
DANGER
If there is no foot valve or check valve on the suction port, filling must be repeated before each start-up.
DANGER
If the pump has difficulty in increasing pressure, repeat operations 1 to 10. If, after several attempts, the pump does not
operate correctly, see the fault section "quick troubleshooting guide"
18
3. Loosen the filler cap to enable release
of the air, then fill the pump body and
suction line completely with liquid,
until it overflows from the hole.
4. Tighten the filler cap fully down.
5. Remove the filler cap.
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,
continue to fill the pipe and pump
until water overflows also from this
second hole.
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 pressure during
start­up.
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
activate liquid suction. If the pump
does not generate pressure and flow
rate, repeat steps 1 to 10.