Installation - Mechanical
14
CLCH-SVX010A-EN
Provide clearance around the unit to allow adequate free
air and necessary service access. Also, allow room for
supply and return piping, ductwork, electrical
connections, and coil removal.
Unit Placement
Removing the Shipping Skid
If a unit arrives in sections, then each section must be
individually hoisted, set on the housekeeping pad, roof
curb, or pier mount and then assembled.
Following the order of the sections on the unit submittals
and tagging, individually place each unassembled section
or subassembly in the appropriate installation location.
Note:
Prior to placing fan section in the appropriate
installation location, verify shipping tie-downs
have been removed.
For outdoor units, the pipe cabinet must also be mounted
as an individual section. Refer to
“Pipe Cabinet,” p. 28
for
specific instructions.
When mounting the unit on a roof curb, make sure the
gasketing between the roof curb and unit base provides an
airtight seal.
When mounting the unit on a pier mount, locate one pier
at each corner
as a minimum
, directly underneath any
shipping split (ensure full support under each side) and
then every four feet at equally spaced intervals around the
perimeter of the unit. Both the unit and the pipe cabinet
should be supported by their base around the entire
perimeter. See
Figure 6
and
Figure 7
.
For proper operation, the unit must be installed level (zero
tolerance) in both horizontal axes. For vertical discharge
units, allow space under the unit for supply air ductwork
connections.
WARNING
Risk of Roof Collapsing!
Failure to ensure proper structural roof support could
cause the roof to collapse, which could result in death
or serious injury and property damage. Confirm with a
structural engineer that the roof structure is strong
enough to support the combined weight of the roof
curb and the unit. Refer to submittals for weights of
unit and curb.
WARNING
Risk of Unit Dropping!
Always place, assemble, and suspend sections/
subassemblies one at a time. Placing, assembling, and/
or suspending more than one section/subassembly at a
time could result in module/subassemblies dropping
and crushing technicians which could result in death,
serious injury, or equipment damage.
NOTICE:
Microbial Growth!
The floor or foundation must be level and the
condensate drain at the proper height for proper coil
drainage and condensate flow. Standing water and wet
surfaces inside the equipment can become an
amplification site for microbial growth (mold), which
could cause odors and damage to the equipment and
building materials.
Figure 6.
Piers located in each corner and spaced evenly
every four feet
Note:
Piers beneath shipping splits must be structurally
sound to support the weight of the unit.
Figure 7.
Side view with two shipping splits - locate
one pier directly under each shipping split
Note:
Piers beneath shipping splits must be structurally
sound to support the weight of the unit.
Piers
4 feet
Shipping split
4 feet
