© 2015 MacroAir Technologies Toll Free: 866 668 3247 Fax: 909 890 2313 www.macroairfans.com 20
Rev. Date 090415
Components:
A - 1/2”-13 x 1” Grade 5 Bolts (4)
B - 1/2’’ Flat Washers
C - 1/2”-13 Unistrut Spring Nuts (P1010) (4)
D - Liquid Thread Lock
E - Universal Mount
F - 1-5/8” Unistrut Channels (2)
This method is used to span components of a building structure. The attachment point to the
building structure can vary greatly and we recommend Unistrut be contacted so they may
recommend the best method to attach the Unistrut to the building (www.unistrut.us). If the
spanning distance is greater than 8 feet, please consult a Structural Engineer. Please refer to
page 3
for the maximum torque and weight for both Model 550 and 780.
1.1.1B:
Span two pieces of 1-5/8” Unistrut open side facing down and space apart so there is
12-7/8” from outside edge to outside edge (See illustration for example).
1.1.2B:
Once the Unistrut is in place, apply liquid thread lock to the recommended bolts and use
the remaining recommended hardware to attach the mount to the Unistrut. Torque the bolts to
50ft-lbs. Recommended torque is based on 1/2-13’’ hardware.
Final Results:
1.1B Unistrut Span Mounting
A
B
C
D
E
F
NOTE: Mounting to Z-purlins requires span mounting.
