Table of Contents
Advertisement
8-12 Testing the batteries and rectifiers
Procedure 8-2 (continued)
Testing and replacing the batteries
Step
12
13
14
15
AccessNode P0904244 Issue 1.0
Action
Interconnect four fully charged and tested batteries in the same series
configuration as is used in the MPP cabinet. Refer to Figure 8-3.
DANGER
Risk of fire explosion
Be extremely careful not to connect two cables from
the same battery together.
If a battery must be replaced:
a. Use the 5/16 in. and 3/8 in. wrenches to remove the hardware that
fastens the red and white cables to the battery terminals. Note the
orientation of the cable.
b. Reinstall the cables on the replacement battery.
Ensure that the white cable goes on the positive (+) terminal and that the
red cable goes on the negative (−) terminal.
Ensure that each cable is fastened to the battery terminal in the same
orientation as on the original battery.
Note: Some companies require that batteries only be replaced in sets of four.
Check your local practices before replacing an individual battery.
Measure the voltage level. Recommended voltage readings are:
Manufacturer
Johnson Control
If the voltage level is acceptable, disconnect the batteries from each other by
using the quick connects to separate the red and white cables.
—continued—
Output voltage
Between –52.8 and –56.0 V dc
Advertisement
Table of Contents
