Figure D-1 Battery Pack - HP PowerTrust A3589A Manual

Figure D-1 Battery Pack

Tools required:
• Flathead screwdriver
To remove and replace a battery pack, use the following procedure:
Battery packs should be replaced one at a time. Failure to do so could cause
CAUTION
the battery fuse to fail. Begin replacing batteries by starting with the
left-most battery pack and working to the right. After you have finished
replacing the battery packs on one side, replace the battery packs on the
other side—one at a time.
1. Make sure the BYPASS and MAIN INPUT breakers are ON.
CAUTION If the yellow caution light is flashing, do not proceed. Switching the UPS into
Bypass mode when the caution light is flashing may disrupt power to the
load. Call HP Service. If the yellow caution light is not flashing, continue.
2. While depressing the red button on the Service Bypass Unit, set the Service Bypass
switch to .
Bypass
A continuous alarm will sound indicating that the UPS is in Bypass mode.
3. Set the rear panel UPS/BATTERY switch to
Appendix D
Removal and Replacement Procedures
. The alarm will turn off.
DISABLE
Field Replaceable Units
D-7