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Ductwork Installation Tips
ESTABLISH A STAGING AREA where all sheet metal duct parts can be laid out in the order of assembly. Each shipment has the part number and a box with the sheet metal duct parts to help you locate all ducting parts. It is recommended that you stage the drops separately and as close to the drop locations as possible. (Any shortages must be reported immediately. Delayed reporting will result in further charges.)
ESTABLISH THE 'LINE' OF TRAVEL.
You need to establish a straight line by which to install your various duct work lines. You may use an existing beam or you may want to 'pull' a string as your straight line to ensure that you are staying straight throughout the sheet metal duct work installation. All sheet metal duct work installations can begin at the fan end or at the 'pick-ups'. However final adjustments are easier on the pick-ups and larger jobs are easier if installation starts from the fan forward. Either way, you need a pre-established 'line' to follow.
LOCATE AND INSTALL TEMPORARY HANGERS that will support the duct work during the installation process. Hangers can be added and moved as duct is installed, but hangers will be needed during the installation to support the duct. If using the cable hangers, see the instructions in the catalog/price list. If using a rod attached to saddles, you will want to have the saddles attached to the rod, ready to receive the duct.
IF USING 'K-WICK' CABLE HANGERS then refer to illustration below. Figure A represents the forming of a loop around a beam or other object from which the duct work will be suspended. Figure B and C illustrate the way the cable goes through the free sliding end of the "clutcher' , around the ductwork and back through the hole in the 'clutcher' that contains the gripping bar. A 'thumb tab' (D) on the side allows for release of the cable if needed.
CLAMP TOGETHER STRAIGHT RUNS ON THE FLOOR but limits the lengths to a manageable number of sheet metal duct parts and pieces. Remember: longer sheet metal duct parts are harder to maneuver and require more hangers.
ALWAYS INSTALL CLEVIS PIN IN CLAMP as soon as it is latched. This is especially important during installation so as to avoid accidental unclamping. |