Installation
Liebert
®
eXM
™
8
2.0 INSTALLATION
This section describes the Liebert eXM’s environmental requirements and mechanical considerations
that must be taken into account when planning the positioning and cabling of the UPS equipment.
Because each site is unique, this section presents a guide to general procedures and practices that
should be observed by the installing engineer, rather than step-by-step installation instructions.
NOTICE
Risk of improper installation. Can cause equipment damage.
Do not apply electrical power to the UPS equipment before the commissioning engineer
arrives at the installation site.
The UPS must be installed by a properly trained and qualified engineer in accordance with
the information contained in this chapter. All the equipment not referred to in this manual is
shipped with details of its own mechanical and electrical installation information.
2.1 Initial Inspections
1. While the Liebert eXM and ancillary cabinets are still on the truck, inspect the equipment and
shipping container for any signs of damage or mishandling. Do not attempt to install the system if
damage is apparent. If any damage is noted, file a damage claim with the shipping agency
immediately and contact Liebert Services at 1-800-LIEBERT to inform them of the damage claim
and the condition of the equipment.
2. Compare the contents of the shipment with the bill of lading. Report any missing items to the
carrier and your local Emerson representative immediately.
3. Check the product label on the back of front door and confirm the contents match the UPS model,
capacity and main parameters that were ordered.
2.1.1 Storing for Delayed Installation
If the equipment will not be installed immediately, it must be stored indoors where the humidity is no
higher than 90% and the temperature is no higher than 104°F (40°C). The storage area must protect
the Liebert eXM from excessive moisture (see 8.2 - UPS Environmental).
2.2 Preliminary Checks
2.2.1 Identification
The equipment supplied has an identification tag on the back of the main door listing the type and
size of the UPS.
NOTE
Three-phase, four-wire input power is required.
NOTE
Input power must be supplied to the Liebert eXM from a properly grounded Wye or Delta
source. The Liebert eXM is not for use with impedance grounded systems, corner-grounded
systems or high-leg Delta systems. For these applications, an isolation transformer must be
installed between the input power and the Liebert eXM.
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