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CLCH-SVX03C-EN
Pre-Installation Requirements
Preparing the Unit Site
WARNING
Live Electrical Components!
During installation, testing, servicing and troubleshooting of this product, it may be necessary
to work with live electrical components. Have a qualified licensed electrician or other individual
who has been properly trained in handling live electrical components perform these tasks.
Failure to follow all electrical safety precautions when exposed to live electrical components
could result in death or serious injury.
1.
Ensure the installation site can support the total weight of the unit (see the
“Dimensions and
Weights” section on page 13
for approximate module weights; refer to the unit submittals for
actual module weights).
2. Allow sufficient space for the recommended service access (see
“Service Clearances on
page 13
).
3. Ensure there is adequate height for condensate drain requirements (see the
“Drain Pan
Trapping” section on page 50
).
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 may cause odors and damage
to the equipment and building materials.
4. Confirm the foundation of the mounting platform is level and large enough to include the unit
dimensions (refer to the unit submittals for specific dimensions).
5. Provide adequate lighting for maintenance personnel to perform maintenance duties.
6. Provide permanent power outlets in close proximity to the unit for installation and
maintenance.
7.
Unless the unit is ordered with a factory-mounted/wired starter or variable-frequency drive, the
customer must provide 120 Vac power to the unit controller, 50/60 Hz, typically 3 amps for unit
sizes 3 to 57 and 5 amps for unit sizes 66 to 120. A dedicated 15-amp circuit is recommended.
8. Wiring to the air handler must be provided by the installer and must comply with all national
and local electrical codes.
9. If a factory-provided base rail was not ordered to ceiling suspend M-Series unit sizes 3 to 57, 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 the
“Ceiling Suspension” section
on page 25
for more information.