far apart as possible, depending on rack depth, while still joining both members (see figures at right). Check
alignment of bracket assemblies and TIGHTEN ALL SCREWS FROM 23. on the previous page.
5. Prepare the UPS or battery cabinet (the “equipment”) for rack mounting by following instructions in the
equipment’s user manual. The equipment may require additional parts to be added or parts to be removed for
rack mounting. After it is prepared, lay the equipment in rack-mounting position. Fasten the inner members
from 1 to the equipment on both sides as shown at right with eight M4 screws provided in the kit. Make sure
retaining latch is near the rear of the equipment as shown (see figure at right).
6. If available, apply a bead of grease 1" (25mm) long at four places inside the bottom, curved tracks of the front
members as shown below right. The grease will allow the equipment to slide into the bracket assemblies more
easily..
CAUTION: Lifting equipment into the rack may be a two-person job, depending on the weight of the
equipment. Emerson
®
recommends taking the internal batteries out of the UPS during rack installation. This
will make the UPS cabinet lighter and easier to handle. The Liebert GXT3 weighs 151 lb. (67kg). For the
weight of the UPS, see Table 12.1 on page57; for the battery cabinet’s weight, see Table 12.5 on page61.
CAUTION: Factory-supplied rack handles are not intended to be used to lift the UPS. The handles are
intended to be used to slide the UPS into and out of the rack.
Figure 5.5 Installing the Rack Mount Brackets
ITEM DESCRIPTION
1 UPS or battery cabinet
2 Apply Grease
3 Apply Grease (inside)
4 Insert the UPS into the front members, lift the front and push it into the rack.
Table 5.4 Installation Rack Mount Bracket Descriptions
Vertiv | Liebert® GXT3 ™ Installer/User Guide | 27
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