Removing the 2145 UPS

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

Use the reference numbers in parentheses at the end of each notice, such as (C003) for example, to find the matching translated notice in IBM® Systems Safety Notices.

DANGER

Uninterruptible power supply units contain specific hazardous materials. Observe the following precautions if your product contains an uninterruptible power supply:

• The uninterruptible power supply 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 uninterruptible power supply.
• The uninterruptible power supply contains its own energy source (batteries). The output receptacles might carry live voltage even when the uninterruptible power supply is not connected to an ac supply.
• Do not remove or unplug the input cord when the uninterruptible power supply is turned on. This removes the safety ground from the uninterruptible power supply and the equipment connected to the uninterruptible power supply.
• The uninterruptible power supply is heavy because of the electronics and batteries that are required. To avoid injury, observe the following precautions:
  • Do not attempt to lift the uninterruptible power supply by yourself. Ask another service representative for assistance.
  • Remove the battery, electronics assembly, or both from the uninterruptible power supply before removing the uninterruptible power supply from the shipping carton or installing or removing the uninterruptible power supply in the rack.

(D007)

CAUTION:

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)

1. At the front of the 2145 UPS, press and hold the off button ( in Figure 1) for approximately five seconds or until the long beep stops.
   Figure 1. 2145 UPS front-panel assembly

   
2. At the back of the 2145 UPS (Figure 2), disconnect the power cables of the SAN Volume Controller .
3. Disconnect the signal cables ( in Figure 2).
4. Disconnect the main power cable ( in Figure 2).
   Figure 2. 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 ( in Figure 3).
   Figure 3. Removing the 2145 UPS

   
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.