Mounting the Liebert XDV
17
5.3.1 Hanging Stacked Liebert XDVs from Unistruts
Because the upper Liebert XDV in a stacked arrangement must be positioned farther forward than
the lower Liebert XDV, two sets of Unistruts are required. The second set of Unistruts must be
installed 9-7/8 inches (251mm) forward of the first set. This arrangement positions the stacked Lie-
bert XDVs so that they meet the air-intake criteria shown in Figure 10 and Figure 17.
After installing the Unistruts at the proper location, hang the Liebert XDVs as outlined in 5.2.1 -
Suspending the Liebert XDV from Unistruts.
Figure 18 Attach hanger brackets to Liebert XDV for stacked arrangement
Figure 19 Stacked Liebert XDVs suspended from Unistruts
A
ttach hanger brackets
t
o each corner of each
Liebert XDV.This
arrangement permits
mounting from either
Unistruts or from overhead
structure.
10 - 32 x 5/8" length;
factory-supplied
10 - 32 x 5/8" length typical, 3;
factory-supplied
1/4 - 20 x 5/8" length typical, 2;
factory-supplied
Unistrut field-supplied
upper Liebert XDV: 1
lower Liebert XDV: 2 Bo lt 3/8"- 16,
nut and washer
factory-supplied