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Outdoor Storage
NOTICE
Corrosion!
Use only canvas tarps to cover air handlers. Plastic
tarps can cause condensation to form in and on the
equipment, which could result in corrosion damage or
wet storage stains.
Outdoor storage is not recommended for units that will be
installed indoors. When outdoor storage is necessary, several
things must be done to prevent damage:
Note: Keep the equipment on the original skid for 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 adequate air circulation beneath the unit and to
assure no portion of the unit will contact standing water at
any time.
•
Loosen the belt tension on the drive belts.
•
Cover the unit securely with a canvas tarp.
•
Do not stack 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
revolutions by hand. Check for free rotation.
•
Every six months, check fan shaft bearings and grease
lines. Add grease using a manual grease gun following the
lubrications recommendations in
Lubrication," p.
73.
•
Check the motor lubrication; remove and 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 the Dimensions and Weights chapter for
approximate section weights; refer to the unit submittals for
actual weights).
•
Allow sufficient space for adequate free air and necessary
service access (see
"Service Clearances," p.
submittals for specific minimums.
CLCH-SVX009L-EN
"Fan Bearing
15). Refer to
•
Allow room for supply and return piping, ductwork,
electrical connections, and coil removal.
•
Ensure there is adequate height for condensate drain
requirements. See
"Drain Pan Trapping," p.
Note: If 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, floor, or foundation of the mounting
platform is level and large enough to accommodate the
unit. Refer to the unit submittals for specific dimensions.
•
Provide adequate lighting for maintenance personnel to
perform maintenance duties.
•
Provide permanent power outlets in close proximity to the
unit for installation and maintenance.
•
Wiring for the air handler must be provided by the installer
and must comply with all national and local electrical
codes.
•
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 Roof
Curbs For Performance Climate Changer™ Air Handlers
Model UCCA for Outdoor Applications Sizes 3-30 –
Installation Instructions (CLCH-SVN006*-EN).
Note: Preparation of the roof curb or pier mount and roof
openings should be completed prior to lifting the unit to
the roof.
Pre-Installation
38.
13
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