Part 2 of the manual covers the manufacturing details and quality procedures as maintained by Cooke Industries in their ductshop. Overleaf - The Fabriduct automated duct fabrication line at the Cooke sheetmetal shop automatically, beads, notches, cuts-to-length, flanges, seams and folds rectangular duct. Ducts shall be sealed as specified in the HVAC−DCS. DUCT LEAKAGE CLASS *Consult the HVAC−Air Duct Leakage Test Manual and select appropriate allowable leakage. If field leak tests are required, appr opriate test pressure and clear scope of testing must be specified. DUCT LINER Metal nosing shall be used on leading edges of each lined duct. the installation of air duct systems manufactured from Johns Manville air duct products and accessories. The Pocket Installer is intended for use by mechanics, foremen, project superintendents, inspectors and other individuals involved in the installation and inspection of fiber glass air handling systems.
Ordinary heating, ventilating, and air conditioning duct systems read air pressures at psi or less, often much less. 1 psi equals inches of water gauge; a common duct pressure of inches water column is equal to ( divided by in-wc/psi) = Introduction to fiber glass duct fabrication concepts. Reviews the benefits of fiber glass duct systems, covers the recommended work practices and the tools. fabrication instruction sheet is not meant to be a duct-system fabrication manual. Measurement for Centerline Method Layout is done on the fiber glass duct boards before fabrication is started, with measurements keyed to the corner folds. In all cases, the INSIDE dimension (I.D.) of the duct is the determining factor.
Ordinary heating, ventilating, and air conditioning duct systems read air pressures at psi or less, often much less. 1 psi equals inches of water gauge; a common duct pressure of inches water column is equal to ( divided by in-wc/psi) = fabrication instruction sheet is not meant to be a duct-system fabrication manual. Measurement for Centerline Method Layout is done on the fiber glass duct boards before fabrication is started, with measurements keyed to the corner folds. In all cases, the INSIDE dimension (I.D.) of the duct is the determining factor. Fiber Glass Duct Board Fabrication Instructions • SuperDuct ® RC Duct Board • Mat-Faced Micro-Aire ® Duct Board • Micro-Aire Type LP Duct Board Method of joining section of air duct to sheet metal take-off on insulated metal or fibrous glass plenum: Bottom Diffuser Connector A gauge ( mm) galvanized sheet metal liner (1), 24" (
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