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Mechanical Installation
2
1.0 MECHANICAL INSTALLATION
1.1 Introduction
This following section describes the requirements that must be taken into account when planning the
positioning and cabling of the Liebert NXL Input/Output Cabinet.
This chapter is a guide to general procedures and practices that should be observed by the installing
personnel. The particular conditions of each site will determine the applicability of such procedures.
NOTICE
All equipment not referred to in this manual is shipped with details of its own mechanical and
electrical installation.
NOTICE
Three-phase input supply required.
The standard Liebert NXL UPS is suitable for connection to three-phase, four-wire (+ Earth)
TN-C, TN-S, IT-G, IT-IG or, three-phase, three-wire plus ground, IT-UG.
If using with IT Power system, a 4-pole disconnect device must be included as part of building
installation.
1.2 Preliminary Checks
Before installing the cabinet, please carry out the following preliminary checks:
• Visually examine the cabinet for transit damage, both internally and externally. Report any dam-
age to the shipper immediately.
• Verify that the correct equipment is being installed.
• Verify that the UPS room satisfies the environmental conditions stipulated in the equipment
specification, paying particular attention to the ambient temperature and air exchange system.
1.3 Environmental Considerations
1.3.1 UPS Room
The cabinet intended for indoor installation and should be located in a cool, dry, clean-air environ-
ment.
When bottom entry is used, the conduit plate must be installed.
1.4 Positioning
The Liebert NXL Input/Output Cabinet is structurally designed to withstand lifting from the base.
NOTE
The UPS is suitable for mounting on concrete or other non-combustible surface only.
!
CAUTION
Risk of unit tipping over. Can cause equipment damage and personal injury.
Floor mount brackets must remain attached to the frame until the unit is being placed in its
final, installed position. (The final installation will always require the unit to be bolted to
another Liebert NXL product.) Failure to comply with these instructions could result in
equipment damage and/or injury to personnel.