Laserfiche WebLink
1.04 SUBN=ALS ' <br /> A. Product Data: Submit manufacturer's technical product data for each type of ductwork accessory, including <br /> dimensions,capacities,and materials of construction;and installation instructions. , <br /> B. Shop Drawings: Submit manufacturer's assembly-type shop drawings for each type of ductwork accessory showing <br /> interfacing requirements with ductwork,method of fastening or support,and methods of assembly of components. <br /> C. Maintenance Data: Submit manufacturer's maintenance data including parts lists for each type of duct accessory. , <br /> Include this data, product data, and shop drawings in maintenance manual; in accordance with requirements of <br /> Division 1. <br /> PART 2: PRODUCTS <br /> 2.01 DAMPERS <br /> A. Low Pressure Manual Dampers: Provide dampers of single blade type or multi-blade type, constructed in <br /> accordance with SMACNA"HVAC Duct Construction Standards". <br /> B. Control Dampers: Refer to Division 15 Section 15970 "Energy Management and Control Systems" for control <br /> dampers;not work of this section. ' <br /> C. Counterbalanced Relief Dampers: Provide dampers with parallel blades,counterbalanced and factory-set to relieve <br /> at indicated static pressure. Construct blades of 16-ga. alumimmi, provide 1/2" diameter ball bearings, 1/2" , <br /> diameter steel axles spaced on 9"centers. Construct frame of 2"x 1/2"x 1/8"steel channel for face areas 25 sq.R <br /> and under,4"x 1-1/4"x 16-ga.channel for face area over 25 sq. ft. Provide galvanized steel finish on frame with <br /> aluminum touch-up. , <br /> D. Subject to compliance with requirements, manufacturers offering dampers which may be incorporated in the work <br /> include the following: <br /> 1. Air Balance,Inc. <br /> 2. Airguide Corp. <br /> 3. American Warming&Ventilating,Inc. <br /> 4. Arrow Louver and Damper,Div.of Arrow United Industries,Inc. <br /> 5. Louvers&Dampers,Inc. <br /> 6. Nailor Hart. <br /> 7. Perm Ventilator Co. <br /> 8. Prefco. <br /> 9. Ruskin Mfg.Co. <br /> 10. Cesco Products. <br /> 11. United Air. <br /> 2.02 FIRE AND SMOKE DAMPERS <br /> A. Fire Dampers: Provide fire dampers, of types and sizes indicated. Construct casings of 20-ga. galvanized steel. , <br /> Provide fusible link rated at 160 to 1650F unless otherwise indicated. Provide damper with positive lock in closed <br /> position,and with the following additional features: ' <br /> 1. Damper Blade Assembly: Interlocking curtain type. <br /> 2. Blade Material: Steel,match casing. <br /> Provide material and installation costs in bid for eight (8) extra fire dampers. Assume a damper size of 18x12. <br /> Dampers are for locations not specifically shown on the drawings. Damper sizes are to be field verified at locations <br /> required and ordered only after approval from the Architect and Engineer. <br /> 15910-2 No.99132-CP2 <br />