Instruction book
6996 0224 30 47
The air intake filter (optional) should be installed in a horizontal position to prevent filtered dust falling into
the pump inlet when replacing the air intake filter element and resulting damage to the pump.
Initial start-up instructions:
Check the process lines for the correct size to prevent high pressure drop and for cleanliness to protect
the vacuum pump.
Make sure the pump outlet is not obstructed.
Check that the electrical connections correspond to the applicable codes and that all wires are
clamped tight to their terminals. The installation must be earthed and protected against short circuits by
fuses of the inert type in all phases. An isolating switch must be installed near the vacuum pump.
Switch on the voltage and switch it off immediately. Check the rotation direction of drive motor while
the motor is coasting to a stop. The correct rotation direction of the drive motor is indicated by an arrow
shown on the motor fan cowl. If the rotation direction of the drive motor is incorrect, open the isolating
switch and reverse two incoming electric lines. Incorrect rotation direction of the drive motor may cause
damage to the vacuum pump.
Start and run the vacuum pump for a few minutes. Check that the vacuum pump operates normally.
If you intend to apply the vacuum pump on humid applications, it is recommended that
the unit is allowed to achieve optimal running temperature before it’s effectively put in
operation. This can be done by running the unit against a closed suction line for 30
minutes with open gas ballast.
Gas ballast location and use is indicated on the pump dataplate.
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