MaxPower Corp Gamatronic Power+ M50-RM - Manual (Page 32)

Gamatronic Electronic Industries Ltd.
POWER+ RM 50 K VA, N.Am. Std. – User Guide, Release 1.9 16
2.4 Battery replacement instructions
2.4.1 To replace the batteries in the built-in battery box:
1. Turn off load devices (recommended).
2. Disconnect ac input to the UPS (recommended).
3. On the rear of the UPS, switch OFF the main battery circuit breaker
(item 9 in Figure 2).
4. Unlock and open the rear door of the UPS cabinet.
5. On the UPS rear panel, open all ten fuse holders (items 10, 11, and 12 in Figure 2).
6. Unlock and open the front door of the battery cabinet.
7. Remove the large protective plate covering the battery drawers.
8. You will see that each battery drawer is connected to the central column by a pair of thick
cables with red and black connectors. For each battery drawer, disconnect the red and black
connector from the central column.
9. Disconnect the green and yellow ground wire from each battery drawer.
10. To check the batteries to see which of them need to be replaced, you must remove each
battery drawer one-by-one and test the batteries in each drawer. Replace the batteries that
need replacing and reinsert the drawer.
WARNING – THE BATTERY DRAWERS ARE VERY HEAVY!
REMOVING A BATTERY DRAWER REQUIRES AT LEAST TWO PERSONS!
DO NOT TRY TO REMOVE A BATTERY DRAWER ALONE!
11. After all of the batteries have been tested (and any that need replacing have been replaced),
and the drawers have all been reinserted into the battery cabinet, reconnect the ground wire
to each battery drawer.
12. Reconnect each drawer's red-and-black connector cable to the cabinet's central column.
13. Replace the large protective plate covering the battery drawers.
14. Lock the front door of the battery cabinet.
15. At the rear of the battery cabinet, close all ten fuse holders.
16. Lock the battery cabinet's front door.
You can now switch ON the battery cabinet circuit breaker.