DualLite LSN - Battery Maintenance and Replacement

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300.4 Battery Maintenance and Replacement
Thissectionprovidesprecautionsforqualiedservicepersonnelworkingwithunitbatteries.Nouserserviceable
parts are within the system's cabinets
Important Safety Precautions
Theservicetechnicianmusttaketheseprecautions:
1. Wear protective clothing, eye-wear, rubber gloves and boots. Batteries contain corrosive acids or
caustic alkalis and toxic materials and can rupture or leak if mistreated. Remove rings and metal
wristwatches or other metal objects and jewelry. Don’t carry metal objects in pockets where the
objects can fall onto the batteries or into the LSN inverter system or battery cabinet.
2. Tools must have insulated handles so that they will not short battery terminals. Do not allow a tool to
short a battery terminal to another battery terminal or to the cabinet at any time. Do not lay tools or
metal parts on top of the batteries, and do not lay any objects where they could fall onto the batteries
or into the cabinet.
3. Install the batteries as shown on the battery wiring diagram provided in this manual or with the
battery cable kit. When connecting cables, never allow a cable to short across a battery’s terminals,
the string of batteries, or to the cabinet.
4. Align the cables on the battery terminals so that the cable lug will not contact any part of the cabinet
even if the battery is moved. Keep the cable away from any sharp metal edges.
5. Install the battery cables so they cannot be pinched by the battery cabinet or the LSN inverter
system doors.
6. External battery cabinet chassis ground (or earth) must be connected to the LSN inverter system
unit’s chassis ground (or earth). The ground conductor must be insulated. If you use conduit, this
ground conductor must be routed in the same conduit as the battery conductors.
7. Where conductors may be exposed to physical damage, protect conductors in accordance with NEC
requirements.
8. If replacing batteries or repairing battery connections, follow the procedure in this manual to shut
down the LSN inverter system and remove both AC and DC input power.
9. Full voltage and current are always present at the battery terminals. The batteries used in this
system can produce dangerous voltages, extremely high currents, and possible risk of electric
shock. Batteries may cause severe injury if the terminals are shorted together or to ground (earth).
Be extremely careful to avoid electric shock and burns caused by contacting battery terminals or
shorting terminals during battery installation. Do not touch uninsulated battery terminals.
10. Aqualiedelectricianwhoisfamiliarwithbatterysystemsandrequiredprecautionsmustinstalland
service the batteries. Any battery used with this unit shall comply with the applicable requirements
for batteries in the standard for emergency lighting and power equipment, UL 924. Cabinets are
designed to be used with, and batteries must be replaced by identical cells or a Dual-Lite approved
equivalent. If using substitute batteries not supplied by Dual-Lite, the unit’s UL listing will be void,
and the equipment may fail to perform properly. The installation must conform to national and local
codes as well. Keep unauthorized personnel away from batteries.