Removing the 2145 UPS

Before you begin to remove the 2145 UPS , read all safety notices.

Before you begin

Use the reference numbers in parentheses at the end of each notice (for example, D005) to find the matching translated notice in IBM System Storage SAN Volume Controller Safety Notices.

DANGER
Uninterruptible power supply (UPS) units contain specific hazardous materials. Observe the following precautions if your product contains a UPS:
  • The UPS contains lethal voltages. All repairs and service must be performed only by an authorized service support representative. There are no user serviceable parts inside the UPS.
  • The UPS contains its own energy source (batteries). The output receptacles might carry live voltage even when the UPS is not connected to an AC supply.
  • Do not remove or unplug the input cord when the UPS is turned on. This removes the safety ground from the UPS and the equipment connected to the UPS.
  • The UPS is heavy because of the electronics and batteries that are required. To avoid injury, observe the following precautions:
    • Do not attempt to lift the UPS by yourself. Ask another service representative for assistance.
    • Remove the battery, electronics assembly, or both from the UPS before removing the UPS from the shipping carton or installing or removing the UPS in the rack. (D007)
CAUTION:
Two graphics show 3 persons carrying a heavy box; one graphic shows an icon with text warning that weight i s more than 32 kg (70.5 lb)
The weight of this part or unit is between 32 and 55 kg (70.5 and 121.2 lb). It takes three persons to safely lift this part or unit. (C010)

About this task

Perform the following steps to remove the 2145 UPS :

Attention: Check to make sure that any SAN Volume Controller that is powered by this 2145 UPS is shut down and turned off, prior to step 1. See MAP 5350: Powering off a node.

Procedure

  1. At the front of the 2145 UPS , press and hold the off button (number one in Figure 1) for approximately five seconds or until the long beep stops.
    Figure 1. 2145 UPS front-panel assembly
    This figure shows the 2145 UPS front-panel assembly
  2. At the back of the 2145 UPS (Figure 2), disconnect the power cables of the SAN Volume Controller number three.
  3. Disconnect the signal cables (number one in Figure 2).
  4. Disconnect the main power cable (number two in Figure 2).
    Figure 2. 2145 UPS connectors and circuit breakers
    This figure identifies the location of the 2145 UPS connectors and circuit breakers.
  5. Remove the battery from the 2145 UPS . See Removing the 2145 UPS battery.
  6. Remove the electronics assembly from the 2145 UPS . See Removing the 2145 UPS electronics.
  7. At the front of the 2145 UPS , unscrew the mounting screws (number one in Figure 3).
    Figure 3. Removing the 2145 UPS
    This figure shows how the 2145 UPS is removed
  8. At the back of the rack, push the 2145 UPS forward approximately 5 cm (2 in) to enable you to pull it from the rack.
  9. Go to the front of the rack.
  10. With aid from another service representative, pull the 2145 UPS forward and remove it from the rack.
  11. Replace the 2145 UPS . See Replacing the 2145 UPS.