Vertiv
™
|
Liebert
®
NX
™
225-600kVA Installation Manual | Rev. 8 | 07/2017
5
1.3.3
Installation Altitude
The maximum operating altitude of the UPS, without derating, is 3300ft. (1000m). At higher altitudes the load
must be reduced according to
Table 8
.
1.4
P
OSITIONING
The cabinet is structurally designed to handle lifting from the base.
Access to the power terminals, auxiliary terminal blocks and power switches is from the front.
The door can be opened to give access to the power connection bars, auxiliary terminal blocks and power
isolators. The front door can be opened 90 degrees for more flexibility in installations.
1.4.1
Moving the Cabinets
The route to be traveled between the point of arrival and the unit’s position must be planned to make sure that
all passages are wide enough for the unit and that floors are capable of supporting its weight (for instance, check
that doorways, lifts, ramps, etc. are adequate and that there are no impassable corners or changes in the level of
corridors).
Ensure that the UPS weight is within the designated surface weight loading (kg/cm
2
) of any handling equipment.
For weight details, see
Table 7
.
Move the UPS with a forklift or similar equipment to ease the relocation and to reduce vibration. The optional
battery cabinets should be moved with a forklift or similar equipment.
When handling the UPS with a forklift or similar equipment, ensure any lifting equipment used in moving the UPS
cabinet has sufficient lifting capacity. When moving the unit by forklift, care must be taken to protect the panels.
Do not exceed a 15-degree tilt with the forklift. Bottom structure will support the unit only if the forks are
completely beneath the unit.
Handling with straps is not authorized.
1.4.2
Clearances
The Liebert NX has no ventilation grilles at either side or at the rear of the UPS. Clearance around the front of the
equipment should be sufficient to enable free passage of personnel with the doors fully opened. It is important to
leave a distance of 24in (610mm) between the top of the UPS and any overhead obstacles to allow the module to
be serviced and to permit adequate circulation of air coming out of the unit.
1.4.3
Raised-Floor Installations
If the equipment is to be located on a raised floor, it should be mounted on a pedestal suitably designed to
accept the equipment point loading. Refer to the base view to design this pedestal.
!
WARNING
Risk of heavy unit falling over. Improper handling can cause equipment damage, injury or death.
Because the weight distribution in the cabinet is uneven, use extreme care while handling and
transporting. Take extreme care when handling UPS cabinets to avoid equipment damage or injury to
personnel.
The UPS module weight is up to 4450 lb. (2019kg).
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.
