1
Liebert
®
APM
™
I
MPORTANT
S
AFETY
I
NSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions that should be followed during installation of the
Liebert APM, Liebert Bypass Distribution Cabinet
™
and batteries (where applicable).
Read this manual thoroughly, paying special attention to the sections that apply to your installation,
before working with the UPS.
Retain this manual for use by installing personnel.
A properly trained and qualified electrical contractor should oversee the installation of the
equipment.
The Liebert APM cannot be put into operation until it is commissioned by the manufacturer or
authorized engineer. Otherwise, human safety may be endangered and damage to the UPS will not be
covered by the warranty.
The Liebert APM is designed for commercial and industrial uses and cannot be used as life support
equipment.
!
WARNING
Risk of moving heavy equipment and electric shock. Can cause equipment damage, injury and
death.
Exercise extreme care when handling UPS cabinets to avoid equipment damage or injury to
personnel. The Liebert APM’s weight ranges from 800 to 3500 lb. (363 to 1590kg).
Determine unit weight and locate center of gravity symbols before handling the UPS.
Test lift and balance the cabinet before transporting it. Never tilt equipment more
than 15 degrees from vertical.
Battery manufacturers supply details of the necessary precautions to be observed when
working on, or in the vicinity of, a large bank of battery cells. These precautions should be
followed at all times.
Follow all battery safety precautions when installing, charging or servicing batteries. In
addition to the hazard of electric shock, gas produced by batteries can be explosive and
sulfuric acid can cause severe burns. When connected, the nominal battery voltage is 288VDC
and is potentially lethal.
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 maintenance.
Be constantly aware that the UPS system contains high DC as well as AC voltages.
Check for voltage with both AC and DC voltmeters prior to making contact.
!
WARNING
Risk of moving electric shock. Can cause equipment damage, injury and death.
As with other types of high power equipment, dangerous voltages are present within the UPS
and battery enclosure even after input power has been disconnected. The risk of contact with
these voltages is minimized as the live component parts are housed behind a metal panel.
Further internal safety screens make the equipment protected to IP20 standards. Never
remove panels or covers or open doors that will expose internal components to contact.
Read and follow all warnings, cautions and safety and operating instructions to avoid serious
injury or death from electric shock. No risk exists to any personnel when operating the
equipment in the normal manner, following the recommended operating procedures.
All equipment maintenance and servicing procedures involve internal access and should be
carried out only by trained personnel.
