Do not start the pump without having completely filled it with liquid. The system might be under pressure and the liquid that escapes might have a very high temperature. Take the necessary precautions to prevent the liquid from causing personal injury or damage to other components.
1 Close the interception valve on the delivery side of the pump.
2 Completely open the interception valve on the suction side before starting the pump.
3 Remove the filling cap
4 Completely fill the pump body and the suction pipe with liquid until a constant flow of liquid comes out of the filling hole.
5 Fit the filling cap and tighten it.
6 Slowly open the interception valve on the delivery side while the pump is running to ensure the venting and build-up of pressure during starting.
The discharge valve must be opened as soon as the pump is started to avoid the excessive increase in temperature of the pumped liquid and consequent damage of the materials.
Was this FAQ helpful?
The motor rotation direction may be inverted only in three-phase motor pumps (400 volt). In single-phase pumps (230 volt) the motor always turns in the correct direction. We recommend you read the instruction manual of the KC, KCV (also available in our DNA software) for all information. An arrow on the motor fan cover indicates the correct direction of rotation. The pump should rotate clockwise when viewed from the motor side. If it is turning in the wrong direction, disconnect the power and exchange any two wires of the input power supply.