Commission The Dry Pumping System - Edwards GXS Series Instruction Manual

3.11 Commission the dry pumping system

WARNING:
During some application cycles, the dry pumping system may exceed the OSHA
1910.95 Occupational Noise Exposure Limits, the EU noise directive 2003/10/EC or
other regional noise limits dependent upon the process, duty cycle, installation or
environment in which the dry pumping system is being operated. A sound pressure
survey must be conducted after installation. If necessary, the controls must be
implemented to ensure that the relevant limits are not exceeded during the
operation and that adequate precautions are taken to prevent the person from
exposure to the high noise levels during the operation.
1. Switch on the external electrical supply and check that the power LEDs
Front panel
pump (system with rear exhaust and castors/levelling feet
If the LEDs do not go on, contact us.
2. Switch on the cooling water and purge gas supplies.
3. Ensure that the exhaust extraction system is not blocked (for example, that valves
in the exhaust extraction system are open).
4. Ensure that all openings to atmospheric pressure in the foreline vacuum system
are closed.
5. Press and hold the local control button
check that the green local control LED
on and then remains continuously illuminated.
6. Press START button
7. If the dry pumping system starts and continues to operate, continue at step 8. If a
warning or alarm condition is indicated:
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8. Look at the pressure gauge in the inlet pipeline:
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9. Visually check the purge gas dial pressure gauge on the rear of the pump to ensure
that the purge gas is being delivered to the pump. Continue to check the dial
pressure gauge regularly as the dry pumping system is used.
10. After the dry pumping system is commissioned:
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M58800880_H - Installation
controls, item 7 and
(Figure: Front panel
Shut down the dry pumping system. Refer to
Contact us.
If the pressure is increasing, immediately shut down the dry pumping system
and contact us.
If the pressure is decreasing, continue to step 9.
To continue to operate the dry pumping system, refer to
Otherwise, shut down the dry pumping system. Refer to
page 59.
Figure: The controls/connectors on the rear of the
(Figure: Front panel
(Figure: Front panel
controls, item 3).
Manual shut down
Page 49
(Figure:
fitted), item 4) goes on.
controls, item 5) and
controls, item 6) comes
on page 59.
Start up on page 54.
Manual shut down on