Chapter 7
7-5
Cleaning and Maintenance
Exchanging Batteries/Fan
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:
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
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."
L97FB00143
↑↑↑↑
The first four digits (L97F) specify the UPS part and manufacturing date.
Month
Designator
Month
Designator
Month
Designator
January
A
May
E
September
I
February
B
June
F
October
J
March
C
July
G
November
K
April
D
August
H
December
L
Summary of Contents for PowerTrust A3589A
Page 7: ...Contents Contents 5 ...
Page 8: ...Contents 6 Contents ...
Page 10: ...Contents 8 Figures ...
Page 12: ...Contents 10 Tables ...
Page 14: ...2 ...
Page 20: ...Preface 8 ...
Page 22: ...Preface 10 ...
Page 52: ...1 30 Chapter1 Overview Specifications Figure 1 8 UPS Input Voltage Transfer Points ...
Page 56: ...1 34 Chapter1 Overview UPS Modes Figure 1 10 Simplified UPS 5 5 kVA UPS Block Diagram ...
Page 62: ...1 40 Chapter1 Overview Support Information ...
Page 76: ...2 14 Chapter2 Unpacking and Inspecting Shipping and Storage Requirements ...
Page 104: ...3 28 Chapter3 Installing the UPS Examples of PowerTrust Connections in a System ...
Page 116: ...5 4 Chapter5 Verification Procedures Load Testing ...
Page 148: ...7 6 Chapter7 Cleaning and Maintenance Exchanging Batteries Fan ...
Page 190: ...A 42 AppendixA HP UX UPS Monitor Error Messages Log Only Messages ...
Page 218: ...C 8 AppendixC Configuring the OS for the PowerTrust UPS Power Failing the UPS ...