High Volume, Low Speed Ceiling Fans4
®
B
A
3 FT. CLEARANCE AROUND BLADES
2X FAN DIAMETER
FROM HVAC
MINIMUM 10 FT. ABOVE
FINISHED FLOOR
HVAC
DIFFUSER
WHEN FULL DIFFUSER OUTLET
IS BELOW HVLS FAN,
HVLS FAN MUST BE 1X FAN DIAMETER AWAY
3 FT. CLEARANCE AROUND BLADES
Minimum Spacing Requirements
Minimum Spacing From Center of Fan (ft.)
Fan Size (ft.) A B
812 24
10 15 30
12 18 36
14 21 42
16 24 48
18 27 54
20 30 60
24 36 72
so that the tips of the airfoils are a minimum of 3ft.
away from the furthest point that a person could
reach or otherwise come in contact, to prevent
injury.
9. If the fan is to be mounted in an area where
materials or equipment may be elevated into its
path, ensure that the floor is marked or painted
to alert personnel of the overhead location of the
fan(s).
10. Before installation, it is important to verify that the
mounting surface will bear the operating weight
and maximum torque (twisting force) of the unit.
The Structural Engineer of Record (SEOR) must
perform a thorough evaluation of the mounting
structure and determine all final mounting
requirements before the fan is installed. It is the
sole responsibility of the installer to ensure that the
mounting structure and fan installation method are
adequate for safe operation of the fan.
Fan Size
(ft.)
DS-3 DS-6
*Max. Fan
Weight (lbs)
Max Torque
(ft∙lbf)
*Max. Fan
Weight (lbs)
Max. Torque
(ft∙lbf)
8 170 5.4 195 9.6
10 175 12.8 204 20.8
12 181 23.0 213 31.8
14 187 30.6 222 40.4
16 192 36.7 231 48.4
18 196 43.1 240 55.4
20 201 50.6 270 122
24 210 54.0 287 125.3
*Maximum weight is shown in pounds and includes all available
options, actual fan weight may be less.
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