
© Edwards Limited 2008. All rights reserved. Page i
Edwards and the Edwards logo are trademarks of Edwards Limited.
Contents
B064-04-880 Issue F
Contents
Section Page
1 Introduction ....................................................................................... 1
1.1 Scope and definitions ................................................................................................... 1
1.2 Description ................................................................................................................ 2
1.3 Principle of operation ................................................................................................... 4
1.4 Over-temperature protection .......................................................................................... 4
1.4.1 Cooling-fail thermal snap-switches ................................................................................... 4
1.4.2 Boiler protection thermal snap-switches ............................................................................. 4
1.5 Full-heat and half-heat modes (control configured pumps only) ................................................. 4
1.6 Control-box controls and lamp (control configured pumps only) ................................................ 5
1.7 Performance .............................................................................................................. 5
1.8 Operation with high ambient humidity ............................................................................... 5
2 Technical data .................................................................................... 7
2.1 Performance .............................................................................................................. 7
2.2 Mechanical data .......................................................................................................... 7
2.3 Pump fluid data .......................................................................................................... 7
2.4 Cooling-water ............................................................................................................ 8
2.5 Electrical data ............................................................................................................ 8
2.6 Performance curves ..................................................................................................... 8
2.7 Construction materials .................................................................................................. 8
3 Installation ....................................................................................... 11
3.1 Safety ..................................................................................................................... 11
3.2 Unpack and inspect .....................................................................................................11
3.3 Locate and assemble the pump .......................................................................................12
3.4 Vacuum connections ...................................................................................................13
3.4.1 System design ...........................................................................................................13
3.4.2 Connect the pump-inlet to the vacuum system ....................................................................13
3.4.3 Connect the pump-outlet to the backing pipeline .................................................................13
3.5 Leak-test the system ...................................................................................................14
3.6 Connect the cooling-water supply ...................................................................................14
3.7 Electrical installation ..................................................................................................14
3.7.1 Introduction ............................................................................................................. 14
3.7.2 Connect the electrical supply to the pump .........................................................................15
3.7.3 Connect the backing-pressure interlock ............................................................................15
3.7.4 Thermal snap-switch connections (unconfigured pumps only) ..................................................16
3.8 Fill the pump with fluid ................................................................................................16
3.8.1 Safety of vapour pump fluids .........................................................................................16
3.8.2 Recommended pump fluid .............................................................................................19
3.8.3 Filling procedure ........................................................................................................ 19
3.9 EMC commissioning .....................................................................................................20
4 Operation ........................................................................................ 21
4.1 Introduction .............................................................................................................21
4.2 Check the insulation resistance of the heaters ....................................................................21
4.3 Pump start-up ...........................................................................................................22
4.4 Adjust the boiler protection thermal snap-switches ..............................................................24
4.5 Pump start-up after over-temperature shut-down ................................................................24
4.6 Selection of half-heat and full-heat modes (control configured pumps only) .................................25
4.7 Readmission of air to your vacuum system .........................................................................25
4.8 Re-evacuation of your vacuum system ..............................................................................26
4.9 Pump shut-down ........................................................................................................26
IA/057/06/09