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SEISMIC BRACING NOTES <br /> VIBRATION ISOLATED HVAC DUCT AND MECHANICAL COMPONENTS <br /> 1 . ISAT includes designs for the seismic restraint of vibration isolated duct suspended <br /> from spring hangers. However, design of the vibration isolated support system itself <br /> must be accomplished separately on a job specific basis by a qualified engineer. <br /> 2. Install vibration isolation hardware per manufacturer's instructions to achieve the <br /> required degree of isolation and/or deflection. <br /> 3. Vibration isolated hangers that also require seismic bracing shall be braced using <br /> galvanized steel cable or minimum 12 gage hanging wire tied to ISAT designed and <br /> tested seismic brackets. <br /> 4. Cable to be installed with sufficient slack to accommodate, but not exceed, the vibration <br /> isolators calculated deflection. See manufacturer's vibration isolator specifications. Do <br /> not tension cables to the extent that they support gravity loads. Cable installation is to <br /> be symmetrical. <br /> rimmr171.11417M <br /> i i % , ' - T ■ <br /> International Seismic Application Technology <br /> 14848 Northam Street,La Mirada, CA 90638 <br /> 877-999-4728 (Toll Free) 714-523-0845(fax) <br /> www.isatsb.com <br /> '' '2'!'4 Rev. <br /> �Q``.�t a Fy 10/01/14 <br /> , <br /> 6 S4710 n b. PPage <br /> 9.5 <br /> r9 F0 ,co., Qa 2012/15 IBC <br />