Pre-Installation
10 CLCH-SVX013B-EN
necessary, several things must be done to prevent
damage:
Note: Keep
the equipment on the original wooden blocks/
skid fo
r protection and ease of handling.
• Select a well-drained area, preferably a
concrete pad or
blacktop surface.
• Place the unit on a dry surface or raised off the ground
to assure adequa
te air circulation beneath the unit and
to assure no portion of the unit will contact standing
water at any time.
• Cover the unit securely
with a canvas tarp.
• Do not st
ack units.
• Do not pile other material on the unit.
Long-Term Storage
For longer periods of storage, allow proper clearance
around the unit to perform periodic inspections and
maintenance on the equipment. While the unit is in
storage:
• Every two weeks, rotate the
fan and motor shaft 30
revo
lutions by hand. Check for free rotation.
• Every six months, check fan shaft bearings and grease
li
nes. Ad
d grease using a manual grease gun.
• Check the motor lubrication; remove an
d clean grease
plugs and check for the presence of moisture in the
grease. If moisture is present, remove the motor and
send it to an authorized repair shop for bearing
inspection/replacement. If no moisture if present, refer
to the motor manufacturer’s lubrication
recommendation for proper lubrication.
Site Preparation
• Ensure the installation site can support the total weight
of the unit (see “Dimensions and Weights,” p. 12 for
approximate section weights; refer to the unit
submittals for actual weights).
• Allow sufficient space for adequate free air and
necessary service
access (see “Se
rvice Clearance
Recommendations,” p. 12). Refer to submittals for
specific mi
nimums.
• Allow room for supply and return piping, ductwork,
electrical connections, and coil remov
al.
• Ensure there is adequate height for condensate drain
requirem
ents. See “Drain Pan Trapping,” p. 42.
Note: I
f unit is installed in a mechanical room on a pad,
inadequate height may
necessitate core-drilling
the floor to attain proper trap height. Insufficient
height could inhibit condensate drainage and
result in flooding the unit and/or equipment room.
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.
• Confirm the roof curb or foundation of the mounting
pla
tform is le
vel and large enough to accommodate
the unit. Refer to the unit submittals for specific
dimensions.
• Provide adequate lighting for maintenance personnel
to perform main
tenance duties.
•
Provide permanent power outlets in close proximity to
the uni
t for installation and maintenance.
• Depending upon job requirements, 120 Vac power
m
ay need to be provided for the
unit controller. Refer
to submittals for more information. A dedicated
15-amp circuit is recommended.
• Wiring for the air handler must be provided by the
in
staller and m
ust comply with all national and local
electrical codes.
• If the unit integral base frame ceiling suspension
provis
ions are not used, the installer/contractor must
provide a ceiling-suspended mounting frame
designed to support the length, width, and weight of
the entire air-handling unit. See “Ceiling Suspension,”
p. 17 for more information.
• Rooftop curb-mounted units must be sealed tightly to
the curb. Use
proper sealants and roof-to-curb sealing
techniques to prevent water and air leakage. Refer to
CLCH-SVN05A-EN Roof Curbs for Performance
Climate Changer™ Air Handlers Installation
Instructions.
Note: Prepar
ation of the roof curb or pier mount and roof
openings should be completed prior to lifting the
unit to the roof.
Roof Curb Installation Checklist
See CLCH-SVN05A-EN Roof Curbs for Performance
Climate Changer™ Air Handlers Installation Instructions
for information on installing roof curbs.
It is recommended that the curb be installed directly on the
support
members and fastened to the supports using tack
welds
or other equivalent methods. Properly supported
decking should be installed inside the air handler section
of the curb when this method is used. See Figure 2.
To Next Page
Loading...
