Desert Aire SA Series, Installation And Operation Manual

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2 Installation
Manual applies to standard unit configurations only.
2.1 Position and Service Clearance
Desert Aire dehumidifiers require routine maintenance to operate efficiently.
• Allow a minimum of 36 inches of clearance around the service side of the dehumidifier for piping,
electrical connections, and service access. Install the unit on a sturdy, level mounting base or
platform that will prevent vibration and sound transmission. Never install the dehumidifier on a
wooden platform without consulting the design engineer for spring isolation requirements and
sound control materials. Do not install the unit near occupied rooms such as offices or guest
rooms.
• Level the dehumidifier to ensure proper condensate drainage.
• Install blocks under the unit if necessary to provide clearance for the condensate trap. Install
blocks underneath each corner and each lifting lug.
Figure 2 - Dehumidifier with Blocks Installed for Trap Clearance
• Install outdoor dehumidifiers equipped with an outdoor air intake away from plumbing vents,
furnace flues, or equipment which could contaminate the air supply.
• If the dehumidifier is to be mounted on a roof curb, make sure that the curb has been properly
mounted and supported. Place gasketing around the perimeter of the curb before setting the
dehumidifier in place. This will help prevent air or water leaks.
• You must not install an indoor rated dehumidifier in an unconditioned space or where ambient
temperatures can fall below 45°F. If you must install the dehumidifier outside or in an
unconditioned space, you must use an outdoor rated dehumidifier. Desert Aire equips
outdoor-rated units with weatherproofing and thicker insulation. You can determine if your unit is
outdoor-rated by inspecting the unit rating plate. (See Section 5.7 in the Appendix for details.)
• Duct design and installation should conform to ASHRAE and SMACNA low velocity duct
standards. See Section 5.2 in the Appendix for additional duct recommendations.
Desert Aire - SA Manual