Won-Door™ DuraSound™ Specification SECTION 10655 - Accordion Folding Partitions PART 1 - GENERAL 1.01 SUMMARY OF WORK A. Division 0 and Division 1, as indexed, apply to this section. B. Furnish and install all accordion-type folding partitions shown on the drawings and specified herein. 1.02 RELATED SECTIONS A. All headers, support structures, surrounding insulation, jambs, pocket doors, blocking and trim shall be furnished and installed by other sections. [B. All electrical work including but not limited to the following electrical work by Electrical Section: 1. Provide 115/230 volt single phase (or 208 volt, 3-phase A.C.) electrical service in conduit to the reversing magnetic starter. 2. Provide 115/230 volt single phase (or 208 volt, 3-phase A.C.) electrical service between the starter and the gear motor. 3. Provide 4"X 4" electrical box for the key switch located within line-of-sight of the folding partition. 4. Provide 3-conductor, 18-gauge stranded wire in conduit between the key switch and starter. 5. Provide key switch for door operation (3 position switch, spring return to center from right or left).] 1.03 QUALITY ASSURANCE A. Installation shall be accomplished by factory trained personnel. B. Sound rated partitions shall have the laboratory sound rating indicated, when tested in accordance with the requirements of ASTM E-90. 1.04 SUBMITTALS A. Refer to Section 01300 - Shop drawings and Submittals. B. Indicate required stacking depth, pocket width (if applicable) and height of header above finished floor. Show installation details, layout [and electrical requirements]. 1.05 DELIVERY, STORAGE AND HANDLING A. Deliver to job site in manufacturer's original, unopened package. 1.06 COORDINATION BY GENERAL CONTRACTOR A. Coordinate the efforts of the various trades affected by the work of this section. Assure accurate installation of header, jamb and trim. Provide field dimensions for fabrication. B. Supervise unloading and handling. Store boxes flat (no more than three high) in a dry area and protect from elements that may damage materials. Replace damaged materials at no additional cost to the owner. [C. Permanent power shall be in place for final connection when partitions are erected. Assure access to and proper clearance for motor operators.] 1.07 WARRANTY A. Materials shall be warranted against defects and workmanship for a period of one (1) year from the date of substantial completion. PART 2 - PRODUCTS 2.01 MANUFACTURER A. Folding partitions shall be DuraSound™ as manufactured by Won-Door™ Corporation, Salt Lake City, Utah. 2.02 MATERIALS A. Operation: Shall be top supported, and manually [electrically] operated. B. Construction: Shall consist of two parallel accordion-type walls of panels independently suspended with no pantographs or interconnections except at the lead-post. C. Panels shall be formed of cold rolled vinyl-clad 24-gauge V-grooved steel. Vinyl shall be  permanently bonded by heat pressure lamination to the steel panel. Panels shall be connected by full height extruded vinyl hinges. D. Insulation: Interior surfaces of both walls shall be completely covered with a continuous blanket of 2 lb. density foil-backed fiberglass fastened in place with steel spring-clips. E. Lead-posts: Shall be of 16-gauge cold rolled steel and shall be connected to the partition by specially formed steel panels. Lead-post hardware shall include standard grip-type handles and sliding latch to effect closure. [Key locks shall be provided.] F. Perimeter Seals: Shall consist of continuous extruded vinyl sweep strips attached to the top and bottom of the partition. Leading edges of lead-posts and receiver posts shall be acoustically sealed by extruded vinyl interlocking seals. G. Hanging weight shall be 4.2 pounds per square foot. OPTIONS [H. Stabilizer Bar: Shall consist of a top supported, internally mounted diagonal brace connected to the lead-post for proper alignment during operation and latching. (Requires 14" wide header.)] [I. Motor operator Operation: Motor-operated folding partitions shall be driven by means of a roller chain attached to the stabilizer bar trolley. An internally mounted stabilizer bar shall keep lead-posts plumb and in proper alignment during operation and insure a tight fitting closure without the use of mechanical latches. Motor Operated Assembly: Shall consist of a 115/230 volt single-phase A.C.  Motor [or 208 volt 3-phase A.C. gear motor], reversing electromagnetic starter, and limit switch. Size of each motor shall be determined by manufacturer to insure proper operation.] 2.03 ACOUSTICAL PERFORMANCE A. Sound transmission class (STC) shall be [select one: STC 48, STC 43] when tested in accordance with requirements of ASTM E-90. 2.04 COLORS A. Vinyl finish color shall be selected by the architect from manufacturer's standard colors. PART 3 - EXECUTION 3.01 PREPARATION BY GENERAL CONTRACTOR A. Openings shall be to the dimensions specified, plumb and level. B. Headers shall be leveled with the finished floor to within +/- 1/4" (.006) tolerance over the entire length of the opening. 3.02 INSPECTION A. Contractor shall inspect prepared opening and immediately notify the architect, in writing, of unacceptable conditions. 3.03 INSTALLATION A. Install partitions in accordance with manufacturer's printed instructions. B. Upon completion of the installation, the General Contractor shall protect partitions from damage and replace or repair subsequent damage so that partitions are acceptable to the architect, at no additional cost to the owner.