LEYBOLD SCROLLVAC plus - Start-Up Procedure

Use the gas ballast control to introduce air into the nal stage of the pump.
Use of gas ballast will reduce the condensation of vapours in the pump. The
condensates would contaminate the pump.
Ther
e are only two positions, 1 and 2. The gas ballast control knob will
rotate 360° in either direction at 90° intervals.
   
Position 1 = Gas ballast OFF. Use this setting to:
▪ Achieve ultimate vacuum▪
▪ Pump dry gases.▪
Position 2 = Gas ballast ON. Use this setting to:
▪ Pump condensible vapours within the concentrations described in the▪
 .
▪ Decontaminate the pump▪
Note:






7.6Start-up procedure
Use the following procedure to start the 1-phase pump:
1. Make sure that the vacuum system isolation valve is closed (ifinstalled).1.
2. With the mains supply to the pump isolated, make the electrical2.
connection to the pump mains connector port with an IEC60320
connector (C19). Refer to



.
3. Check that the exhaust-extraction system is not restricted, and that any3.
valves in the exhaust-extraction system are open.
4. Apply power.4.
300668736_002_C7 - © Leybold 41
Operation