- Eaton UPS User's Guide

MAINTENANCE
Eaton 9170
+
UPS (3–18 kVA) User's Guide S 164201393 Rev E www.eaton.com/powerquality
95
3. Pull the module out approximately 17 cm (7”) to the secondary stop
on top of the module.
4. Press down on the secondary stop release, pull the module out
farther, and support the module weight with your second hand as
you remove the module from the cabinet.
5. Remove the battery module beside the first in a similar manner.
Label the original modules with masking tape or some other
identifier.
6. After removing a pair (one string) of battery modules, install a
replacement pair. Replacements may be installed in empty cabinet
slots before removing the original battery modules.
7. When all desired battery modules have been replaced, replace the
front cover(s).
8. If the batteries are not properly installed, the Open Cell alarm
activates. Check the batteries in the slot indicated on the alarm
screen.
Power Module Replacement
The Eaton 9170+ hot‐swap feature lets you replace a power module
without disconnecting the load or damaging the UPS.
NOTE The UPS may switch to internal Bypass mode if the remaining power modules are
insufficient to supply the required power. If empty slots exist, install replacement modules
before removing original ones.
Use care in removing and installing power modules. To remove a power
module:
1. Remove the front cover.
The cover has spring latches on the left and right sides that hold it
in place.
2. Loosen the thumbscrew on the module handle. Press down on the
latch release at the center of the module handle and pull the handle
down.
As the module handle fully extends, the module disconnects. Slide
the module slowly out of the cabinet.