Figure 19: Internal Fastening
Ceiling Hung
When a unit is ceiling hung, support it with a base rail, angle
iron, or channel . The Vision air handler is not designed to be
suspended from the top of the unit . Before hanging, rig and
completely assemble the unit . See
Assembling Sections on
page 8
.
Ceiling Hung Using Base Rail
The optional base rail provided by the factory has 5/8" diameter
holes in each corner to run hanger rods through . To properly
support the unit and maintain unit integrity, support each
shipping section with hanger rods in each corner (
Figure 20
) .
Figure 20: Ceiling Suspended with Base Rail
Ceiling Hung Using Angle Iron Channel
Install field-provided angle iron or channels per SMACNA
guidelines . When a unit is unitized (ships in one piece), channel
support each component under the unit width (
Figure 21
) .
NOTE: The supporting angle iron must fully support the 2
"
frame channel at each section joint .
When a unit is sectionalized (ships in multiple sections),
channel support each component under the unit width and
provide support under the full length of the unit base (
Figure
22
). Locate hanger rods so they do not interfere with access
into the unit .
Ceiling suspension using the unit base rails is limited
to unit cabinet widths less than 108
" .
Support units with
cabinets 108" wide and greater with structural members
designed to support the unit at the ends and at intermediate
points along the base rails .
Figure 21: Ceiling Suspended w/o Base Rail—
Unitized Construction
Figure 22: Ceiling Suspended w/o Base Rail—
Modular Construction
IM 672-11 • VISION AIR HANDLING UNIT 12
www.DaikinApplied.com
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