American Power Conversion SYMINIF, SYMSTRF-PD Power Module Replacement, Removing the Power Module

	Chapter 8 - Module Replacement
Power Module Replacement
The following section provides the procedure for replacing a
power module.
Removing the Power Module
1. Remove the grill cover from in front of the module to be
replaced. Note that the module bays are labelled to corre-
spond with the PowerView display.
2. If replacing a non-redundant power module, or if the power
module to be replaced is the only power module present, the
SymmetraTM must be placed in manual bypass mode, or the
load equipment must be switched off. To place the SymmetraTM
in manual bypass, switch the maintenance bypass switch to
the “on” position.
Note: When the SymmetraTM is in bypass mode, the load equip-
ment is unprotected from power failure.	Drop Lock
3. Use a flathead screwdriver to release the fliplatch from the	Seating Tabs
power module. See figure 8-7.

Fig 8-7Release the Flip Latch

4.Note the two drop lock seating tabs at the front of the power module. See Figure 8-8. These are designed to hold the module firmly in the Power Array frame. When removing a failed power module, lift the front of the module slightly to release the drop lock seating tabs, and then pull the module from the bay.

5.Remove the power module from the frame. If the module has failed and needs to be disposed of, return it to the appro- priate service provider, or directly to APC.

Fig 8-8Drop Lock Seating Tabs

Installing the Replacement Module

Refer to chapter 5 for the power module installation proce- dure.

Note: If SymmetraTM was placed in manual bypass in step 2 above, return to normal operation by switching the mainte- nance bypass switch back to the “off” position.

Replacement Module Verification

From the startup screen, press any key to open the top level menu screen. Follow the sequence in figure 8-9 to insure that the new module is functioning properly. Note that the up/ down cursor appears, and the information for each power module is reviewed by pressing the up or down navigation key. Make sure all power modules display a status of “On & OK.”

Fig 8-9Power Module Verification

8-3