One Systems Natatorium - Manual (Page 4)

4
U-Bracket Assembly of the 108IM/NAT and 112IM/NAT
The One Systems 108IM/NAT and 112IM/NAT use high molybdenum content stainless steel
for all structural and load bearing points. Both products are supplied with an external “U-
bracket” mounting configuration
. This is the only approved mounting method for the NAT
loudspeaker series.
NOTE: There are ONLY three (3) mounting points on the NAT enclosures. Two points are
used for the external U-bracket and the third point may be used as a secondary safety point.
Both the 108IM/NAT and 112IM/NAT are supplied with external U-brackets, bolts and
washers that are required to mount the U-bracket to the enclosure. DO NOT SUBSTITUTE
ANY PARTS USED TO ATTACH THE U-BRACKET TO THE ENCLOSURE!
The U-bracket (AL6XN material) and associated washers and bolts are supplied and
attached to each enclosure. The bracket must be disassembled for installation.
The enclosure and attached U-bracket are shown in the image below. The enclosure is
attached to the U Bracket using the supplied AL6XN bolts and Nord-Lock washers. The
108/NAT uses 5/16” bolts and 5/16” (M8) Nord Lock washers. The 112/NAT uses 3/8” bolts
and 3/8” Nord Lock washers. DO NOT SUBSTITUTE THESE PARTS
. The enclosure
should be mounted to the U bracket AFTER the U bracket has been mounted to either a
solid concrete wall or grout filled block (CMU) wall!
Each Nord Lock washer set consists of TWO parts and BOTH must be used on each bolt
assembly. See the image below. The Nord Lock washer is shown in light blue color.