Fan Operation Highlights
When first turned on the pitch is at 0º. Then after a slow start, as the fan comes
up to speed, the pitch adjusts to whatever the pitch dial is set at (usually the last
pitch setting). This helps reduce torque loads on startup. The user has Multi-
Mode Control capability –
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OPERATING INSTRUCTIONS AND FUNCTIONS
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In
Manual Mode
the speed and pitch are adjustable while the fan is operat-
ing, allowing the user to ‘dial in’ the optimal air velocity, direction, and speed
for the given facility conditions and air movement objectives. We call this
Adjustable Air Movement. (Please note, as the fan reaches approximately
¾’s maximum speed, the maximum pitch is limited to avoid overloading the
unit.)
In addition, the fan can be operated in
EcoMode
, where the fan adjusts the
pitch to what we have determined to be the most efficient angle for a given
speed.
We have a
De-Strat Mode
where the fans automatically turn on, and then off,
at specified temperature deltas between the fan at the ceiling and the wall
box control unit.
In
AutoMode
the fan comes on and off based on temperature differences,
and runs at various speeds depending on how large the temperature
difference is.
AirMotion HVLS Fans may also be connected to external inputs such as
thermostats and timers in
External Mode
.
For safety, our fans stop slowly upon shut down, include a timed delay to
prevent start-up while the blades are spinning if the power is interrupted,
include motor overloads, and have a field disconnect capability.
Our fans can also tie into fire safety suppression controls.
Number of blades
Motor
Fan Speed
CFM
(Cubic Feet per Minute)
Blade Pitch
Approximate Fan Weight
Power sources
Effective Coverage Area
Recommended Spacing
Minimum Height
6 Rotatair™ Composite blades
One 1.5hp energy efficient motor
20 RPM (min) to 120 RPM (max)
230 lbs. including mounting apparatus
120V single phase is standard
(designed to work with all power sources)
Up to 20,000 sq ft or more
(depending on speed and pitch)
Up to 90 feet or more between fans
(depending on speed, pitch, and air
movement objectives)
Top of unit 1 to 3 feet below roof-level,
blades should be minimum 10 ft above floor
340,000 @ 90 RPM and 20° Pitch
(actual CFM depends on the speed and pitch
of operation)
Variable (VPT™) 0°~20° up/down
Key Specifications (15 ft Fan)
