AAON RN Series Installation Operation & Maintenance page 51

specifications and can also be ordered from
the factory for field installation. Wheels
come standard with a 10% air volume band,
as a safety factor, in case additional air
volume is required from the unit.
Air Flow Adjustment
If reduced air volume is required an air
volume band or larger air volume band can
be installed within the blower wheel to
reduce the amount of air delivered by the
wheel.
If the unit is factory equipped with the air
volume band and additional air volume is
required, the band can be removed from the
wheel.
Use fan program in AAON ECat to determine
the new band size for the required cfm and
static pressure.
The following photos of a wheel are provided
for practical guidelines only in order to
identify the air band location in the wheel.
Actual field installation of the air band into
the wheel will require access into and through
the blower wheel venture, which may require
removal of the blower motor and wheel.
Air volume bands are made of aluminum,
sized and equipped with easy bend tabs that
are to be inserted into pre-punched slots
provided on the wheel. Once the band has
been inserted into the slots, it MUST BE
secured by bending the tabs over from the
back side of the wheel and also MUST BE
secured from the inside by connecting the
ends together with a pop-rivet in the holes
provided on the ends of the band.
If the band is field installed, a hand held pop-
rivet tool is recommended for connecting the
band ends together. Caution must be taken to
assure that the band is tightly installed and no
damage, denting or alteration to the wheel or
blades occurs during the installation.
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