Figure 44. Warning label
Since each battery string is an energy source in itself, opening the battery circuit breaker does not de-
energize the voltage within the battery string.
DANGER
Do not attempt to access any internal area of the battery string. Voltages are
always present in the battery strings. If you suspect that a battery string needs
service, contact your service representative.
Obey these precautions when working on or around batteries:
•
Remove watches, rings, or other metal objects.
•
Use tools with insulated handles.
•
Wear rubber gloves and boots.
•
Do not lay tools or metal parts on top of batteries or battery cabinets.
•
Before you connect or disconnect a terminal, first disconnect the charging source.
•
Determine if the battery is inadvertently grounded. If it is, remove the source of the ground. Contact
with any part of a grounded battery can result in an electrical shock. The likelihood of such a shock is
reduced if such grounds are removed during installation and maintenance.
•
When you replace batteries, use the same number of sealed, lead-acid batteries.
•
Discard batteries according to your local codes for disposal requirements.
8
8..3
3
PPrreevveennttiivvee m
maaiinntteennaannccee
The UPS system requires very little preventive maintenance. However, inspect the system periodically to
verify that the units are operating normally and that the batteries are in good condition.
The majority of the service and maintenance work must be performed by service personnel qualified by
Eaton. Only the actions described in
Section
and
Section
done by the user.
8
8..3
3..1
1
D
Daaiillyy m
maaiinntteennaannccee
Do this daily.
1. Examine the area surrounding the UPS system. Make sure that the area is not cluttered, allowing free
access to the unit.
2. Examine that the air intakes (vents on the front door of the UPS cabinet) and the exhaust openings (at
the rear of the UPS cabinet) are not blocked.
EATON 93PM G2 UPS
USER’S AND INSTALLATION GUIDE
P-164000956 - February 2021
www.eaton.eu
8
87
7
