Installation
9Liebert
®
eXM
™
2.3 UPS Location
2.3.1 Positioning the UPS
Choose a location for the UPS that offers:
• Easy connection to inputs, outputs and auxiliary equipment
• Enough space to service the UPS
• Air circulation sufficient to expel heat produced by UPS
• Protection against moisture and excessive humidity
• Protection against dust and other particulate matter
• Compliance with fire prevention regulations and practices
• Operating environment temperature of 74-80°F (23-27°C) for maximum battery life
2.3.2 Environmental Considerations
Before installing the Liebert eXM, verify that the UPS room satisfies the environmental conditions
stipulated in 8.2 - UPS Environmental, paying particular attention to the ambient temperature
and air exchange system.
The UPS unit should be installed in a cool, dry, clean-air environment with adequate ventilation to
keep the ambient temperature within the specified operating range 32°F to 104°F (0°C to 40°C).
For optimal UPS system performance and service life, maintain the operating temperature within the
range of 74-80°F, (23-27°C).
The Liebert eXM is cooled by internal fans. Cooling air enters the unit through the front of the unit
and is exhausted out the top. To permit proper air flow and prevent overheating, do NOT block or
cover the ventilation openings or blow air down onto the unit. The UPS requires 24 in. (610mm)
ventilation clearance above the unit.
See Table 27 for details on heat dissipation.
2.4 Considerations in Moving the Liebert eXM
Ensure that the UPS weight is within the designated surface weight loading (lb./ft
2
or kg/cm
2
) of any
handling equipment. See Table 22 for weights of various units.
The Liebert eXM may be rolled on its casters for short distances only. For longer distances, move the
UPS with a forklift or similar equipment to ease the relocation and to reduce vibration.
Final Positioning
When the equipment has been finally positioned, ensure that the adjustable stops are set so that the
UPS will remain stationary and stable (see 4.0 - Installation Drawings).
The Liebert eXM and its auxiliary cabinets must be installed on a concrete or equivalent, non-
resilient floor.
WARNING
Risk of moving heavy unit. Can cause property damage, injury and death.
Ensure that any equipment that will be used to move the Liebert eXM has sufficient lifting
capacity. The Liebert eXM’s weight ranges from 809 to 956 lb. (367 to 434kg). See Table 22
for details.
The UPS presents a tipping hazard. Do not tilt the Liebert eXM more than 15 degrees from
vertical.
The UPS is fitted with casters—Take care to prevent movement when unbolting the
equipment from its shipping pallet. Ensure adequate personnel and lifting equipment are
available when taking the Liebert eXM off its shipping pallet.
WARNING
Risk of heavy unit tipping over while being moved. Can cause property damage, injury and
death.
The casters are strong enough for movement across even surfaces only. Casters may fail if
they are subjected to shock loading, such as being dropped or rolled over holes in the floor or
obstructions. Such failure may cause the unit to tip over, injuring personnel and damaging
the equipment.
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