2. Close any vacuum system isolaon v
alves to prevent suck‑back into the vacuum
system (where ed).
3. Stop the pump system using the appropriate control source, that is, using the Stop
buon in manual control mode (refer to Figure: User interface panel on page 32);
the Start/Stop control input (refer to Table: Logic interface connector pins on page
22, pin 3) in parallel control mode or a Stop command in serial control mode.
4. Vent the nXDS pump system using the gas ballast control or the valve on the inlet.
5. Isolate the Mains supply.
Page 37
A73501880_G - Oper
aon
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