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Matching Battery Cabinets (Optional)
Although the individual battery cells are sealed
Voltage Records. With the Battery Cabinet DC circuit breaker closed and the connected UPS operating, mea- sure and record battery float voltage. With the DC circuit breaker open, measure and record the nominal (open circuit) voltage. Both these measurements should be made across the final positive and negative terminal lugs. Compare these values with those shown below. The recorded nominal voltage should be no less than the value shown, while the recorded float voltage should be within the range shown. If a discrepancy is found, contact Lie- bert Global Services.
Number of Cells | Battery Voltage (VDC) | |
Nominal | Float | |
240 | 480 | 527 - 576 |
Power Connections. Check for corrosion and connection integrity. Visually inspect wiring for discolored or cracked insulation. Clean and/or retighten as required. Refer to torque specifications in Table 4.
Battery Cell Terminals. Check for discoloration, corrosion, and connection integrity. Clean and tighten if nec- essary. Note that when installing a new battery, the initial torque value is 5
Battery Manufacturer | Battery Model Number | Retorque Value |
Johnson Controls Batteries | 32 | |
| 52 | |
| 52 | |
| 100 | |
C&D Batteries | 100 | |
| 100 | |
Power Batteries | PRC12110X | 65 |
| PRC12120X | 65 |
| PRC12150X | 85 |
| PRC1290X | 65 |
| TC12110X | 65 |
| TC12120X | 65 |
| TC12150X | 85 |
| TC1290X | 65 |
If you have a different model battery, contact Liebert Global Services for the required torque value.
To access battery cell terminals, disconnect the
Rack-Mounted Batteries
If the UPS system uses a battery other than a
4.3.4Torque Requirements
All electrical connections must be tight. Table 4 provides the torque values for the connections in the UPS.
NOTE
Refer to battery manufacturer's manual for the proper torque values required for the battery.
114 | Maintenance | DISCONTINUED |
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