MNL000447.doc
Revision 0 0
09/19/2016
© Versum Materials, Inc. as of the revision and date shown. All rights reserved.
Confidential and Proprietary Data
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- 9
5.
clockwise from fully closed position. A Z-purge of the controller may not be
required in certain areas.
6.
After purging the controller for at least 20 minutes, turn on electrical power to
the controller.
NOTE: The controller is equipped with a Z-purge pressure switch.
The absence of this alarm during Z-purging indicates that the Z-
purge is adequate. If a "Low Z-purge" alarm is present after power
up, increase the flow rate until the alarm can be reset.
NOTE: The GASGUARD A10 system is supplied with an internal
controller purging means that meets NFPA 496, Type Z purging
requirements for use in NEC Class I, Division II hazardous
location (applicable only in the U.S.A.) The internal Z-purge also
meets the requirements of the Explosive Atmospheres Directive
(ATEX) (applicable in the European Community). Type Z purge
does not meet Class I, Division I NEC requirements.
7.
No alarms should be present. If alarms are present, do not continue. Follow
the troubleshooting procedures found in Section 9. If needed, contact your
Versum Materials, Inc. factory representative for assistance.
6a. When requested by the customer, partially populated VMB/VMPs may be
supplied with software to support a fully populated system. This is done so
that build outs do not require a new software reload. When this is the case,
please note the following:
1)
Unused sticks must be kept in idle mode
2)
The controller screen will show sticks that are not physically there.
3)
The Pressure Transducer readings will show 0.00 on unused sticks.
4)
Where used, the Branch shutdown alarms for unpopulated sticks must
be disabled. The alarms can re-enabled and /or disabled with a 4th
level password.
5)
It is strongly recommended to physically lock out the manual process
isolation valves for any unused stick prior to start-up. The pneumatic