HP PowerTrust A3589A Manual page 244

Field Replaceable Units
Removal and Replacement Procedures
14.Orient the plate so that the notch is positioned over the Battery Box cable connector,
then reattach the plate making sure that the prongs on the plate are pressed firmly into
the clips in the Electronics Unit. See Figure 3-9.
CAUTION Operating the UPS without the Battery Precharge Shorting Plate is not
supported and may result in loss of UPS AC output.
15.Tighten the thumbscrews on either side of the Battery Precharge Shorting Plate.
16.Switch the UPS/BATTERY switch to
The UPS will beep continuously. You an silence the beeping by pressing the Silence
Alarm/Test switch on the control panel.
17.Switch the Output On/Output Off switch to
The Caution LED should flash for about five seconds then go out.
18.When the Caution LED stops flashing, go to step 19.
If it is blinking, refer to "Caution LED" in Chapter 6 for possible causes and actions.
19.Turn the Bypass switch to
20.To clear the alarm (if you have not already done so) and return to normal operation
from Bypass mode, turn the control panel Output On/Output Off switch to
about one second, then return it to the
CAUTION Do not leave the Output On/Output Off switch in the
more than 5 seconds. Doing so will turn off AC output to the receptacles and
power down the load.
21.Position the front bezel onto the brackets so that the pins behind the front of the bezel
line up with the four brackets on the face of the Electronics Unit. (See Figure D-6.)
22.Push the bezel in until the bezel pins snap into the bracket clips.
NOTE After replacing the fan assembly, check that the computer is not performing
critical processes, then repeat the load test. For procedures, refer to "Load
Testing" in Chapter 5.
Also, after installing replacement UPS equipment, test it by power failing the
UPS. For procedures, refer to "Power Failing the UPS" in Appendix C.
D-26
. Wait for the green Enable LED to come on.
ENABLE
Output On
.
Normal
position.
Output On
.
position for
Output Off
for
Output Off
Appendix D