Installation - Mechanical
CLCH-SVX07K-EN 35
17. Install the section-to-section screws inserting the
appropriate screws through the overlapping flanges
using a powered impact gun and taking care not to
strip the screws. Outdoor air handlers will ship with a
seam cap that is to be installed over the section-to-
section seams. Factory-supplied butyl tape must be
continuously applied over the top and both side
seams prior to seam caps being applied. See Figure 41
Detail A and Detail B for hurricane units for sizes 3-120.
Detail C applies to non-hurricane units size 3-120 (see
Figure 43).
Figure 41. Section-to-section seam cap installation for hurricane units
See Detail A
See Detail B
Seam cap
Butyl tape
Butyl tape
Roof overhang
Detail A
Detail B
Hurricane units
Butyl tape
Seam cap
Single Roof
Double Roof
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