Introduction
AVD 370/2 FAN
© 2019 MacroAir Technologies Toll Free: 866 668 3247 Fax: 909 890 2313 www.macroairfans.com
AVD 370/2 INSTALLATION MANUAL 90-30071-00 Rev A-01 Date: 030121
7
General Information on Fan Placement and Spacing, cont.
Rapid Mount Commercial
Figure 2: Fan Clearance
Figure 3: Maximum Angle
* Note: Greater than 5
’
drop requires Universal Mt with Guy Wires
Figure 4: Minimum Clearance (Horizontal/Vertical inches)
⚠
WARNING:
FANS ARE NOT MEANT TO BE OPERATED IN WINDY CONDITIONS.
The goal of Figures 2 and 5 are to determine the proper extension length to maintain a minimum
blade clearance of 3 feet for optimal performance. The extension lengths above are minimum
recommendations only, based solely on roof pitch and fan diameter. Other factors must be
evaluated when determining extension requirements.
⚠
ATTENTION:
Minimum Height.
MacroAir requires that the fan blades must be a minimum of
10 feet (3.05 meters) above the floor. Contact MacroAir for assistance with fan placement and
extension selection.
Slope (in)
0
2/12
4/12
6/12
8/12
10/12
Roof Angle
0
9.5
18.4
26.6
33.7
39.8
Diameter
Recommended Total Drop (Mount to Airfoil) Length (ft)
6 feet
2
2
2
3
4
4
8 feet
2
2
3
3
4
5
10 feet
2
2
3
4
5
6*
12 feet
2
2
3
5
6*
8*
Airfoil / Drop Length (ft)
2
3
4
5
6 feet
7/7
7/7
8/8
9/8
8 feet
7/7
7/8
8/8
9/9
10 feet
7/8
7/8
8/9
9/10
12 feet
7/8
7/9
8/10
9/11
