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IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions that should be followed during installation of your Lie-
bert NXL
™
Input/Output Cabinet. Read this manual thoroughly, paying special attention to the sec-
tions that apply to your installation, before working with the UPS. Retain this manual for use by
installing personnel.
!
WARNING
Risk of electrical shock. Can cause personal injury or death.
Check for voltage with both AC and DC voltmeters before working within the cabinet. Check
for voltage with both AC and DC voltmeters before making contact.
Only properly trained and qualified personnel wearing appropriate safety headgear, gloves,
shoes and glasses should be involved in installing the UPS or preparing the UPS for
installation. When performing maintenance with any part of the equipment under power,
service personnel and test equipment should be standing on rubber mats.
In case of fire involving electrical equipment, use only carbon dioxide fire extinguishers or
those approved for use in fighting electrical fires.
Extreme caution is required when performing installation.
Special safety precautions are required for procedures involving handling, installation of the
UPS system. Observe all safety precautions in this manual before handling or installing the
cabinet. Observe all precautions in the Operation and Maintenance Manual, SL-25425, before
as well as during performance of all maintenance procedures. Observe all DC safety
precautions before working on or near the DC system.
!
WARNING
Risk of heavy unit falling over. Improper handling can cause equipment damage, injury or
death.
Exercise extreme care when handling the cabinet to avoid equipment damage or injury to
personnel.
Locate center of gravity symbols and determine unit weight before handling each cabinet.
Test lift and balance the cabinets before transporting. Maintain minimum tilt from vertical at
all times.
Slots at the base of the modules cabinets are intended for forklift use. Base slots will support
the unit only if the forks are completely beneath the unit.
Read all of the following instructions before attempting to move, lift, remove packaging from
or preparing unit for installation.
!
WARNING
Risk of electrical shock and fire. Can cause equipment damage, personal injury or death.
The area around the cabinet should be kept free of puddles of water, excess moisture and
debris.
Only test equipment designed for troubleshooting should be used. This is particularly true for
oscilloscopes. Always check with an AC and DC voltmeter to ensure safety before making
contact or using tools. Even when the power is turned Off, dangerously high potential electric
charges may exist at the DC connections.
All wiring must be installed by a properly trained and qualified electrician. All power and
control wiring must comply with all applicable national, state and local codes.
One person should never work alone, even if all power is disconnected from the equipment. A
second person should be standing by to assist and to summon help in case of an accident.