Pump Start-Up - Pentair STA-RITE MULTI EVO Series Manual De Instrucciones

EN
INSTRUCTION MANUAL
5.5 CHECKING THE DIRECTION OF ROTATION (THREE PHASE MOTOR)
• Locate the arrow indicating the
direction of rotation on the pump or
fan cover.
• Start up the motor.
DANGER
Ensure that the electrical power supply cannot be restored inadvertently.

5.6 PUMP START-UP

DANGER
Use the electric pump according to the performance specifications as stated on the data plate. Before using the pump, read
Application chapter for a proper use.
DANGER
Always avoid operation of the pump with the upline shutoff valve closed (suction side). Dry running of the pump can lead to
overhearing and damage to the pump itself.
DANGER
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 event of escape of the liquid. In this
situation, turn off the pump and leave the system to cool.
DANGER
Never use the pump in the event of cavitation, as this can cause damage to the hydraulic components.
DANGER
Pressure on the downline side of the pump (delivery side) must never exceed the maximum operating pressure PN as indicated
on the pump data plate (see "Application Limits" Figure 5). Pressure downline of the pump is obtained from the sum of the
pressure delivered and the pressure on the suction side (gravity for installations with negative suction head, aqueducts, or
water system where admissible or required).
• Check that the shutoff valves downline
of the pump (delivery side) and upline
of the pump are in the open position.
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• Check the direction of rotation looking
at the electric pump from the side of
the motor fan.
• Stop the motor.
• If the direction of rotation is
incorrect, disconnect the electrical
mains.
• Start the pump.
• If the pump does not start up correctly,
on reaching the operating conditions in
a short time, the pump shuts down.
• In the motor terminal board of the
three phase electrical pump or on
the electrical panel exchange the two
phases of the power cable.
• Check the direction of rotation again.
• In this case repeat the "Pump priming"
phase.