Edwards GXS Series User Manual

3.11 Commission the dry pumping system
WARNING:
During some applicaon cycles, the dry pumping system may exceed the OSHA
1910.95 Occupaonal Noise Exposure Limits, the EU noise direcve 2003/10/EC or
other regional noise limits dependent upon the process, duty cycle, installaon or
environment in which the dry pumping system is being operated. A sound pressure
survey must be conducted aer installaon. If necessary, the controls must be
implemented to ensure that the relevant limits are not exceeded during the
operaon and that adequate precauons are taken to prevent the person from
exposure to the high noise levels during the operaon.
1.
Switch on the external electrical supply and check that the power LEDs (Figure:
Front panel controls, item 7 and Figure: The controls/connectors on the rear of the
pump (system with rear exhaust and castors/levelling feet ed), item 4) goes on.
If the LEDs do not go on, contact us.
2.
Switch on the cooling water and purge gas supplies.
3.
Ensure that the exhaust extracon system is not blocked (for example, that valves
in the exhaust extracon 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 buon (Figure: Front panel controls, item 5) and
check that the green local control LED (Figure: Front panel controls, item 6) comes
on and then remains connuously illuminated.
6. Press START buon (Figure: Front panel controls, item 3).
7. If the dry pumping system starts and connues to operate, connue at step 8. If a
warning or alarm condion is indicated:
▪
Shut down the dry pumping system. Refer to Manual shut down on page 59.
▪ Contact us.
8. Look at the pressure gauge in the inlet pipeline:
▪ If the pressure is increasing, immediately shut down the dry pumping system
and contact us.
▪
If the pressure is decreasing, connue to step 9.
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. Connue to check the dial
pressure gauge regularly as the dry pumping system is used.
10.
Aer the dry pumping system is commissioned:
▪
To connue to operate the dry pumping system, refer to Start up on page 54.
▪
Otherwise, shut down the dry pumping system. Refer to Manual shut down on
page 59.
Page 49
M58800880_H - Installaon

Edwards GXS Series Specifications

General

Brand	Edwards
Model	GXS Series
Category	Water Pump
Language	English