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Section IV
Maintenance
4.1 General
Proper maintenance, both preventive and remedial, is the key to optimal operation of
the UPS and will ensure a long and useful life of the equipment. Preventive maintenance
includes regularly performed procedures designed to prevent system malfunction and obtain
maximum operational efficiency. Remedial maintenance consists of troubleshooting the
system in order to effect repairs. Troubleshooting the UPS involves following a logical
sequence of steps which will determine the cause of an alarm and/or malfunction within the
shortest time frame safely possible so as to expedite the repair and return of the equipment to
normal service.
The manufacturer recommends that the monitor panel be inspected visually
every eight–hour shift to see that the green light is visible, indicating no alarm
conditions exist. The Alarm History should be checked at this time (see Paragraph
3.6.2) to determine if any recent alarms have gone un–noticed. If any unusual
conditions exist, call facility maintenance personnel or IPM Service Hotline
(800–777–8922) or 214–272–8000.
4.2 Safety Precautions
In order to safely and successfully perform maintenance on the system, certain basic
safety precautions must be observed, necessary tools and test equipment must be available,
and properly trained maintenance personnel must be involved.
The following basic safety practices should always be observed:
1. Always be aware that hazardous
voltages are present within the UPS
even when the system is not operating.
2. Ensure that UPS operating and
maintenance personnel are thoroughly
familiar with the equipment and with the
contents of this manual.
3. Never wear metal jewelry such as rings
or wrist watches when working on the
UPS equipment.
