Operation; Start Up; Start, Warm-Up And On-Process Sequences - Edwards EXS Series Instruction Manual

6. Operation

WARNING:
Do not operate the dry pumping system with the lifting eyebolts fitted or with any
enclosure panels removed or damaged. Do not touch any parts of the pump(s) when
the dry pumping system is on. Surfaces of the pumps are very hot and can cause
injury to people.
WARNING:
Do not operate the dry pumping system with any enclosures removed or damaged as
there may be a risk of an electric shock.

6.1 Start up

WARNING:
Ensure that it is safe to start the dry pumping system. Failure to do so (for example,
maintenance is being performed on components downstream of the dry pumping
system) could cause injury to people.
WARNING:
After the power is applied, all mains circuits will be energised.
CAUTION:
Do not operate the pump if the pipeline is restricted or blocked as the pump will not
operate correctly and may be damaged.
1. Switch on the cooling water and purge gas supply.
2. Switch on the electrical supply.
3. Check that the exhaust extraction system is not restricted.
6.1.1 Start, warm‐up and on‐process sequences
Start warm-up and on-process sequences are listed in
process
Table 15 Start, warm-up and on-process sequences
Sequence
Start pump
A41870880_A
A41870880_A - Operation
sequences.
Description
Shaft Seal Purge (SSP) valve is opened.
Pump runs.
Table: Start, warm-up and on-
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