Exchanging The Fan; Table 7-1 Manufacturing Month Codes - HP PowerTrust A3589A Manual

The serial number is a 10-digit code. The first four digits represent the date the battery
pack was manufactured.
For example, in the serial number:
L97FB00143
↑↑↑↑
The first four digits (L97F) specify the UPS part and manufacturing date.
The 1st digit specifies the UPS part. For a 24V HP battery pack this designation is always
"L."
The 2nd and 3rd digits specify the year the battery pack was manufactured. In the
example, the year is 1997.
The 4th digit specifies the month the battery pack was manufactured. See Table 7-1. In the
example, the month is, June.

Table 7-1 Manufacturing Month Codes

Month
January
February
March
April

Exchanging the Fan

It is recommended that the fan inside the Electronics Unit be replaced when the batteries
are replaced.
For procedures on replacing battery packs, refer to the section, "Removing and Replacing
Battery Packs" in Appendix D, "Field Replaceable Units."
Chapter 7
Designator Month
A May
B June
C July
D August
Designator Month
E September
F October
G November
H December
Cleaning and Maintenance
Exchanging Batteries/Fan
Designator
I
J
K
L
7-5