FLYGT PX SERIE Instrucciones De Instalacion Y Uso página 21

6.3 Liquid level higher than the pump
Close the on-off valve downstream from the in-line model pumps (fig. 6).
Remove the fill/bleed plug and open the suction valve until the water flows out of the fill/bleed plug. Close
the drain plug pin completely, without forcing it, on the PX2 and PX4 series pumps and close the fill/bleed
plug.
6.4 Liquid level lower than the pump
Close the suction valve of the pumps with in-line ports (fig. 7) unless the delivery piping is assembled as
shown in fig. 3 (page 110).
Remove the fill/bleed plug and, by means of the elbow bell fitting provided with the pump, fill with water.
Replace the fill plug and close the drain plug pin all the way, without forcing it (fig. 5b), on the PX2 and
PX4 pumps.
6.5 Checking the rotation direction – three-phase motors
After connecting and filling, start the pump with the delivery gate valve closed and check that the rotation
direction is correct (shown on the adapter and coupling) through the coupling protection or fan cover.
DANGER
RISK OF
ELECTRIC SHOCK
6.6 Operation
Start up the pump with the delivery gate valve closed and then open it gradually.
The pump should run smoothly and quietly.
Check the current absorbed by the motor and, if necessary, adjust the setting of the thermal relay.
If the direction of rotation is not correct, stop the motor, disconnect from the
mains and invert two wires on the terminal board or starter.
FILL AND BLEED PLUG
DRAIN PLUG WITH PIN
FIG.6
ELBOW BELL FITTING
DRAIN PLUG WITH PIN
FIG.7
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