MacroAir Technologies Airvolution Installation Manual - page 25
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MacroAir Technologies Inc. www.macro-air.com Toll Free: 866-668-3247 Build: January 9 2009
Regulatory Notice
EMI | Electromagnetic Interference
Electromagnetic Interference (EMI) is any signal or emission, radiated in free space or conducted along
power or signal leads, that endangers the functioning of radio navigation or other safety services or
seriously degrades, obstructs, or repeatedly interrupts a licensed radio communications service. Radio
communications services include but are not limited to AM/FM commercial broadcast, television, cellular
services, radar, air-traffic control, pagers, and personal communications services (PCS). These licensed
services, along with unintentional radiators such as digital devices, variable frequency drives (VFDs), and
other equipment such as fans with VFDs, contribute to the electromagnetic environment.
Electromagnetic compatibility is the ability of items of electronic equipment to function properly together
in the electronic environment. MacroAir Fans with variable frequency drives, VFDs, are designed to be in
compliance with regulatory agency limits for EMI. However, there is no guarantee that interference will
not occur in a particular installation. If MacroAir products (fans) do cause interference with radio
communications services, which can be determined by turning the fans off and on, please notify
MacroAir technical support.
MacroAir Technologies products are designed, tested, and classified for their intended electromagnetic
environment. These electromagnetic environment classifications generally refer to the following
harmonized definitions:
Class A is typically for business or industrial environment.
Class B (MacroAir products are NOT designed for typical residential environments covered under this
classification.)
CODE COMPLIANCE IS THE RESPONSIBILITY OF THE INSTALLER AND, ULTIMATELY, THE END USER. All wiring
should conform to the National Electric Code (NEC) 2005, ANSI/NFPA 70-1999, and all local codes. This
fan control should only be installed by qualified technicians familiar with the requirements of the NEC and
local codes.
Note; MacroAir Technologies has a policy of continuous product improvement and reserves the right to
change design and specifications without notice.
Thank you for selecting The Original Big Fans from MacroAir Technologies. If you have any questions
please call technical support at 866.668.3247. We are happy to assist you.