SECTION 0833 STEEL ROLL-UP DOORS. 1. Exterior steel roll-up weather doors. 2. Motor operators. 3. Door controls. C. RELATED WORK SPECIFIED ELSEWHERE:

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1 SECTION 0833 STEEL ROLL-UP DOORS PART GENERAL 1.01 SCOPE OF WORK: A. WORK INCLUDED: The Contractor shall furnish all necessary labor, materials, equipment and services necessary for the complete installation of steel roll-up doors. Attention is directed to the drawings and specifically the door schedule for door type, size, operation, mounting and location. Work under this Section includes, but is not necessarily limited to the following: 1. Exterior steel roll-up weather doors. 2. Motor operators. 3. Door controls. B. INCIDENTALS: Doors and operators shall be provided complete with all hardware, controls and accessories, etc. to function in an operable manner meeting the approval of the Engineer and as specified herein. Furnish complete with each door all miscellaneous angles, bolts and all related items necessary for the approved installation of each door and operator. C. RELATED WORK SPECIFIED ELSEWHERE: 1. Steel Jambs - Section Electrical Power Wiring and Control Wiring - Division Dock Equipment - Section D. WORK BY OTHERS: Installation of push button control stations furnished under this Section shall be provided by the Electrical Contractor under Division APPLICABLE CODES AND STANDARDS: A. All work specified under this Section shall comply with the following codes: 1. North Carolina State Building Code. 2. International Building Code. 3. State and local building codes. 4. National Fire Codes published by the National Fire Protection Association QUALIFICATIONS: The door manufacturer or his authorized representative shall

2 install doors, operators, fittings, voltage-matching transformers and hardware. All workmen employed in the installation of steel roll-up doors shall be thoroughly trained and experienced in the proper installation of this type door SUBMITTALS: A. SHOP DRAWINGS: Shop drawings shall be submitted in accordance with Section 0130 for all doors, door accessories, controls and motor operators. Shop drawings shall show all pertinent details for proper installation of doors and operators at each opening. Shop drawings shall include wiring diagrams for power wiring and control wiring of motor operators. All required clearances for hoods, operators, guides, etc. shall be shown on shop drawings. Shop drawings shall clearly indicate the proper installation and clearance details of doors and operators as related to the construction details for each wall opening as shown on the project drawings. Standardized shop drawings not fulfilling these requirements will not be accepted. B. OPERATING AND MAINTENANCE MANUALS: Maintenance and operation manuals for doors and operators shall be provided upon completion of the work and prior to final payment. Manuals shall be bound in booklet form and submitted in accordance with Section C. CERTIFICATES OF COMPLIANCE: Underwriter's Laboratories Certificates shall be submitted in accordance with Section 0130 for all oversize fire rated doors PRODUCT HANDLING: A. PROTECTION: 1. All necessary means shall be used to protect materials specified under this Section from damage before, during and after installation. 2. The work of other trades shall be adequately protected from damage resulting from work specified under this Section. B. STORAGE AND HANDLING: All materials specified under this Section shall be properly stored in field warehouses or the equivalent. Materials shall be handled in such a manner that door slats and hoods will not be disfigured. C. REPLACEMENTS: 1. In the event of damage to materials or work in place, all necessary repairs and replacements shall be immediately made to the satisfaction of the Engineer at no additional cost to the Owner. 2. Bent, bowed or disfigured door hoods shall be replaced at no additional cost to the Owner

3 3. Bent or disfigured door slats shall be replaced at no additional cost to the Owner ACCEPTANCE AND TOLERANCES: Installation of work under this Section will not be considered acceptable until each and every door is lubricated, adjusted and functioning properly in every respect LABELS AND IDENTIFICATION: Fire rated doors shall have permanently attached metal labels indicating Underwriter's Laboratories and FM Global approval WARRANTY: The Contractor shall guarantee all work performed under this Section to be free of defects in materials and workmanship for a period of one year from date of final acceptance of the project. PART PRODUCTS 2.01 MATERIALS: A. MANUFACTURER: All doors shall be as manufactured by Raynor Garage Doors, Dixon, Illinois or approved equal. Doors complying with these specifications and manufactured by the following companies will be considered equal: 1. The Cookson Company. 2. Cornell Iron Works, Inc. 3. Overhead Door Corporation B. STEEL ROLL-UP WEATHER DOORS: Weatherstripped insulated steel roll-up weather doors shall be provided at all exterior door openings where steel roll-up doors are required by the door schedule. 1. Curtain shall consist of roll formed interlocking steel slats, galvanized before being formed and bonderized for paint adhesion. Zinc coating shall be of the 1.25 oz. per sq. ft. Class G90 as per ASTM A525. Slats shall have a flat vertical surface so that the exterior of the curtain will lie completely in a vertical plane. Exterior slats shall be Type IF 22 gauge minimum and shall have a minimum width of 2-9/16 inches and a minimum depth of 25/32 inch. Interior surface of curtain shall be 24 gauge. Insulated core shall be polyisocyanurate. Curtain "U" value shall be.16, maximum. Exterior doors shall be capable of withstanding a 30 pound per sq. ft. wind load with adequate factor of safety. Both ends of each slat shall be fitted with continuous combination malleable iron endlocks and windlocks. Curtains shall have a rolled bottom bar consisting of two (2) 3/16 inch minimum hot rolled angles thru bolted at 12 inches on center and a half a slat to reinforce lower edge of curtain against wind pressure. Angles shall be of equal weight, balance and

4 shall hang freely on the curtain to eliminate friction and possible binding in the guides. A compressible loop-type rubber astragal, which extends into each guide, shall be provided and secured to the bottom bar. Astragal material shall be reinforced with nylon, fiberglas or flexible wire mesh to provide a rip resistant weathertight seal suitable for heavy duty industrial application. 2. Counterbalance shall consist of oil tempered and heat treated steel helical torsion springs housed in steel pipe. Springs shall be anchored to a torsion rod extending the full length of springs. Torsion rod shall have fixed on it a single balancing wheel placed on the outside of one of the brackets. Steel pipe shall not exceed 0.03 inch per foot deflection and shall be provided with spiral cast iron rings whenever allowed by the design. 3. Brackets shall be of 1/4 inch minimum steel plate. Bracket mouth and stops shall be in an established distance between center and back of bracket providing a throat which permits smooth operation without friction and eliminates the excessive drag of curtain over the stops. 4. Guides shall be of 3/16 inch minimum hot rolled steel angles, and shall be equipped with windlocking bars and continuous vinyl weatherstripping which shall contact and seal the flat face of the curtain. Weatherstripping shall retain contact with the curtain at all times and shall be protected by windlocking bar from damaging compression. Guides shall form a slot of sufficient depth to retain curtain in guides against heavy wind pressure and shall be provided with anchors for windlocks. 5. Gears, except those which are part of the motor unit, shall be of high tensile gray iron castings conforming to Federal Specification QQ and shall be made from machine cut patterns. 6. Bearings shall be self-aligning precision type bearings of seal cartridge type, or self-aligning, self-lubricating bronze sleeve bearings. 7. Hood shall be not less than 24 gauge hot galvanized sheet steel, formed to fit contour of brackets and enclose the curtain coil. Hood shall be neatly formed and reinforced with beads or flanges to prevent deflection. Neoprene air baffle, attached to the hood connection and extending full length of barrel, shall be provided to prevent air infiltration at the top of door. Backside of hoods exposed to exterior shall be finished flush without deformity from 16 gauge minimum hot dipped galvanized sheet steel. 8. Bottom bar seal shall be neoprene loop suspended between the two hot rolled steel bottom bar angles thru bolted at 12 inches on center EQUIPMENT: A. MOTOR OPERATORS: Operators shall be Model CHO operators mounted bracket plate. Motor operator units shall consist of a motor, directly connected

5 2.03 CONTROLS: to a speed reducer, a solenoid activated brake, a limit switch and an endless chain for emergency operation. All electrical equipment shall conform to NEMA standards. The motor shall be of high starting torque and of sufficient capacity to operate door at a speed of approximately 2/3 of a foot per second, shall be suitable for operation on the current characteristics available at place of installation and shall have overload protection. Each unit shall be provided with a magnetic across the line starter having thermal overload protection and unless otherwise specified shall be equipped with push button marked "Open", "Close" and "Stop". The limit switch shall be of the adjustable screw type and shall be so mounted as not to have its timing affected when the door changes from motor to manual operation. The speed reducer shall be of the worm gear type, completely housed and running in an oil bath, shall satisfy the AGMA Standards and shall be of sufficient capacity for the use intended. Emergency operation shall be through auxiliary hand chain extending to a point easily accessible from the floor. Drive from reducer to door shaft shall be through roller chain operating on cut tooth steel sprockets. Each unit shall be provided with electric interlock so the motor cannot be started when door is being operated by hand and shall be constructed so manual operation may be effected even when motor is disconnected from the unit. 1. Chain holder locking devices shall be provided at all motor operated doors. 2. Electric power for door operators will be 208 volt, 3 phase, 60 Hz. It shall be the responsibility of the door supplier to verify and coordinate electrical current characteristics with the electrical contractor. 3. Transformers shall be provided as an integral part of door operator for 24 volt door control wiring. 4. Closing of doors shall require constant pressure on the close button on the control station. 5. Mounting of motor operators shall be on steel roll-up door bracket. A. CONTROL STATIONS: Control stations shall be furnished for all motor operated doors and provide to Electrical Contractor for installation in accordance with this Section. Control stations shall be three button (open, close, stop) heavy duty control stations as manufactured by Square D Company, Park Ridge, Illinois or approved equal. Control station types shall be as follows: Model NEMA Location Type Type Interior, wall mounted KYK33 Type

6 B. CONTROL VOLTAGE: Control voltage shall be 24 volts. C. CONTROL FUNCTIONS: 1. Controls shall allow door to be opened or closed from stopped position. 2. Reversing travel of a door that is in the process of opening shall be accomplished only by first activating the "stop" button and then activating the "close" button. 3. Reversing travel of a door that is in the process of closing shall be accomplished by activating the "open" button without first activating the "stop" button. 4. Activation of the "stop" button shall immediately stop the door at any point in the opening or closing cycle. 5. All exterior doors shall have one (1) 3 button wall mounted control station on the inside only SHOP FINISH: Finish on all doors and equipment shall be shop paint. Galvanized surfaces shall be treated for paint adhesion, primed with a zinc dust primer and painted with a rust inhibiting paint. All other surfaces except working parts of machinery and other surfaces not normally painted in good commercial practice shall be primed and given a shop coat of rust inhibiting paint. PART EXECUTION 3.01 EXAMINATION AND PREPARATION OF SURFACES: Wall openings, wall surfaces surrounding wall openings and adjacent construction shall be examined for any defects or undesirable features that will interfere with proper installation and operation of doors. Any adverse findings shall be brought to the attention of the Engineer in writing INSTALLATION AND WORKMANSHIP: A. MANUFACTURER'S INSTRUCTIONS: Installation of doors and operators shall be in strict accordance with the manufacturer's printed instructions and approved shop drawings. B. WORKMANSHIP: Workmanship shall be of the highest grade and in accordance with the best practice for this type of equipment. C. INSTALLATION: Door guides for non-fire rated doors shall be securely welded to steel door jambs by certified welders in a neat and workmanlike manner using a combination of plug welds in all guide holes and fillet welds. D. CONTROLS: Door controls stations shall be located as shown on the electrical drawings. Unless otherwise required, control stations shall be

7 mounted 4 feet above finish floor. The Contractor shall coordinate the exact location, orientation and mounting height of control stations for motorized door operators with the Owner's representative at the jobsite. Control stations shall be securely anchored to the building structure by appropriate means. E. TOUCH-UP: All welds shall be cleaned with a chipping hammer and wire brush. All welds and abrasions in shop finish shall then be touched up with a primer that matches shop finish. F. ADJUSTMENTS: After completion of door installation and door controls installation, adjust and lubricate doors, operators, controls and hardware to insure that doors will function properly under all operating conditions FIELD QUALITY CONTROL: A. FIELD TESTING: Each and every steel roll-up door shall be field tested by the Contractor just prior to final inspection to verify that doors operate properly under all operating conditions. Field testing procedures shall include the following where applicable: 1. Testing of each control station for execution of all specified control functions. 2. Testing of proper setting of limit switches for door travel. 3. Testing of chain operators including checking for automatic disengagement of motor operator while chain operator is engaged CLEANING: All rubbish resulting from installation of steel roll-up doors shall be systematically collected and removed from the jobsite. (End of Section)