Chapter 3 - Installation
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06/25/2019
Chemical Equipment
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Confidential and Proprietary Data
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3.11 Manual Mode
Only experienced operators should operate
the ChemGuard® in manual mode. Operating
valves out of their proper sequence could
potentially cause damage to the product by
interrupting or providing insufficient gas flow.
Manual operation should not be used for
normal, daily operation.
Manual mode provides a means of flowing purge gas through the purge and process gas
panels during cabinet installation and pre-start-up procedures. It also provides a means of
flowing purge gas while maintenance or repairs are being performed or when performing leak
checks, Vacuum “Rate of Rise” or Pressure Decay tests.
3.11.1
How to Operate Manual Mode
Operating in Manual Mode could cause the
following hazards which can result in
Personal Injury or damage to the Equipment.
•
Opening valves when liquid chemical is
present at the valve.
•
Liquid chemical could be vented or
released.
•
Opening valves when container pigtails
are not connected and sealed.
NOTE:
Due to the potential hazards listed above, Manual Mode operation requires a
second level security code.
