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MacroAir Technologies Inc. www.macro-air.com Toll Free: 866-668-3247 Build: January 9 2009
2 Installation Procedures
Step 1
, Install mounting hardware
A)
For glulam installations, attach the glulam brackets to the beam using ½” through bolts,
not supplied. Note, ½” lag screws, also not supplied, may be used as an alternative, but
will not provide as much mounting strength. Be sure the brackets line up with each other
and that the bottom of each bracket is flush with the bottom of the beam. For glulam
installations, attach the mount directly to the bracket using the supplied ½” x 2 ¾” bolts,
washers, and nylon lock nuts.
B) For
steel I-Beam installations, mount so that the large plate is against the bottom of the
beam. Be sure the plate is at a 90 degree angle to the beam and centered. Place the
supplied clamps on top of the beam and attach them to the mount using the supplied
fasteners. For thicker I-beams, use the supplied shims between the clamp and the mount
as shown in figure 3.
Note: In all cases, be sure to thoroughly tighten all mounting bolts and nuts. The nylon lock nuts
help prevent loosening due to vibration, but there is no substitute for proper tightening. We
recommend that nylon lock nuts not be removed and reused because this will defeat the
nylon locking; instead, buy new nylon lock nuts from your local hardware store.
C)
If an extension is to be used, attach it to the bottom of the universal mount using the
fasteners provided with the extension. Also, be sure to save the longer safety cable and
guy wire supplied with the extension; they will be needed in a later step.
D)
Loop supplied safety cable (1/4 inch steel braided cable) over the beam and let it hang.
It will be attached once the power unit is installed. If using an extension, be sure to use
the longer safety cable supplied with the extension.
Fig 2
Fig 3
