How To Use This Manual
A proper understanding and use of this operating and maintenance manual will enhance UPS
system reliability. Therefore, the manual should be given equal status with the tools and equip-
ment used to align and maintain the system. Conversely, improper understanding or application
of the principles set forth can result in impaired system operation, loss of power to critical equip-
ment loads, injury to personnel and/or damage to the UPS.
The following guidelines will assist in the understanding and use of this manual.
1.
Become familiar with the Table of Contents. It is here that the user
can first determine where in the manual required information or
guidance can be found.
2.
Read through the entire manual so as to become familiar with its style
and general contents.
3.
Know the manual’s limitations. It is not the intent of this manual to
give a detailed theory of operation of the UPS. Troubleshooting is
limited to the isolation and correction of problems that are signaled by
the Control/Monitoring/Alarm Panel.
4.
Be thoroughly familiar with the safety precautions outlined in Sections
II and IV of the manual.
5.
Do not take shortcuts when operating the UPS or performing
maintenance on the system. A slower, more deliberate pace will give
better results because it eliminates confusion and any false conclusions
which may be reached by skipping steps. Careful adherence to step
sequences presented herein is, more often than not, the fastest way to
achieve desired results.
6.
This manual is written based on the assumption that maintenance
personnel will be fully knowledgeable in electronics and aware of the
hazards of working with high voltage equipment. Always remember
that voltages may be present even when the system has been fully shut
down. Use a voltmeter to check terminals to ground. There is no
substitute for common sense.
7.
Don’t guess. If you don’t know, ask someone who does.
8.
Remember that the International Power Machines Service Staff is
always available to answer your questions or provide helpful advice
about your UPS. Call them on our Service Hot Line:
Telephone: (800) 777–8922
Outside U.S.: (214) 272–8000
