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Eaton 91PS User Manual

Eaton 91PS
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The majority of the service and maintenance work must be done by service
personnel qualified by Eaton. Only the actions described in Section 8.3.1 Daily
maintenance and Section 8.3.2 Monthly maintenance can be done by the user.
8.3.1 Daily maintenance
Do the following steps every day:
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 doors) and exhaust opening
(the back of the UPS cabinet sections) are not blocked.
3. Make sure that the operating environment is within the parameters specified
in Sections 4.4.1 Environmental considerations and 4.4.2 Installation
considerations and Chapter 9.1 About technical data .
4. Examine that the UPS is in the normal operation mode (the green status
indicator for normal operation is illuminated). If the red alarm status indicator
is lit or the green status indicator for normal operation is not lit, contact your
service representative.
8.3.2 Monthly maintenance
Do the following steps once a month:
1. Examine the system parameters on the control panel (see Section
7.2.5 Menu structure of the 91PS/93PS UPS).
2. If the optional air filters are installed, check them (located behind the front
doors) and wash or replace them, if needed. Contact your service
representative for replacement filters. To replace the filters:
a. Open the UPS front door.
b. Replace the filters.
c. Close the UPS front door.
3. Record the check results and any corrective actions in a service log.
8.3.3 Periodic maintenance
Inspect the UPS periodically to determine if components, wiring, and connections
exhibit evidence of overheating. Pay particular attention to bolted connections.
Bolted connections must be re-torqued periodically.
© Eaton Corporation plc 2020. All rights reserved. Revision: 006 Document ID: P-164000493 110
(126)
Eaton 91PS/93PS UPS 8–40 kW User’s and Installation Guide

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Eaton 91PS Specifications

General IconGeneral
BrandEaton
Model91PS
CategoryUPS
LanguageEnglish

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