Addendum No 3.pdf

COMMONWEALTH OF KENTUCKY

DEPARTMENT FOR FACILITIES AND SUPPORT SERVICES

DIVISION OF ENGINEERING AND CONTRACT ADMINISTRATION

INVITATION TO BID NO: RFB-83-25

FOR: Renovate Main Building Phase II KCTCS- Ashland Community & Technical College Ashland, Kentucky

DATE: October 2, 2024

RFB-785-2500000131

ADDENDUM NO. Three (3)

BIDDER SHALL CONFORM TO THE FOLLOWING CHANGES AS SAME SHALL BECOME BINDING

UPON THE CONTRACT TO BE ISSUED IN RESPONSE TO THIS INVITATION TO BID.

Item 1: Change Bid Opening Date to October 16, 2024 at 1:30 PM ET. All other bidding requirements remain the same.

Item 2: Refer to addendum to be distributed by Lynn Imaging for all additions, deletions, and/or changes to specifications and/or drawings.

END OF ADDENDUM

Invitation to Bid No. RFB-83-25 For: Renovate Main Building Phase II KCTCS- Ashland Community & Technical College Ashland, Kentucky

Kristi Sharp, Statewide Procurement Manager Division of Engineering and Contract Administration

ADDENDUM NO. 3

October 2, 2024

To: All Planholders

From: alt32 Architecture 310 Old Vine Street, Suite 300 Lexington, KY 40507-1534

Re: RFB-83-25 KCTCS - Renovate Main Building Phase 2 - Ashland CTC

This addendum is fifteen (15) Page of 8-1/2 x 11.

The purpose of this addendum is to clarify further the requirements of the plans. The contractors are governed by the information in the addendum as if included in the plans. The addendum is part of the contract documents. The bidders shall acknowledge receipt of the addendum in their form of proposal.

1. Sheet M105 – Change all S-2 diffusers on this sheet to S-12 for all rooms.

2. Sheet M104 – In auditorium change S-2 (2 locations) to S-9 and S-3 (1 location) to S-10 on North end of auditorium in hard ceiling.

3. Sheet M104 – Provide two branch drops to S-4 from main, each shall be 12” diameter. S-4 will have two inlets. Provide two branch drops to S-8 from main, each shall be 8” diameter. S-8 shall have two inlets.

4. Sheet M401 – Reference AHU-7, 8 air flow diagram. AHU-7 will not have a return air fan.

5. Sheet M501 – Replace Registers, Grilles, Diffuser, and Louver Schedule with schedule enclosed with this addendum.

6. Sheet M102 M103, M104 – Add one additional S-11 in 10” duct for each elevator lobby.

7. Sheet FP-103 is located between Sheets A4.55 and A4.56.

8. Sheet FP-105 Add to sheetnote description no. 1 the following sentence – “All heads shall be centered in individual ceiling tiles.

9. Sheet P001 – Reference Plumbing Fixture Schedule – Delete Manufacturer and Model numbers for P-3, 4, 5, 6. These fixtures are to be furnished with the Lab equipment. Plumbing contractor shall provide all piping, valves, and accessories and make connections to these fixtures.

10. Sheet M105 – All ductwork shown in rooms 462, 466, B-462, A-416, A-466 – all ductwork that is shaded dark shall be new.

11. Addenda 3 GRD schedule – for S-4 delete diameter symbol for length.

12. Sheet P101 – All DWV piping for this sheet shall be Hubless cast iron.

13. Sheets P102 and P103 – all DWV piping for these sheets shall be CPVC that meets ASTM F441 and ASTM F442 with ASTM F493 cement.

14. Sheet E601 – Add 20A/2P circuit breaker to LPA B-1 for CUH-1.

15. Sheet M101, M102, M103, M104 – The ductwork connection sizes to all VAV units shall match the Unit Size in the VAV schedule.

16. Sheet M101 – CUH-1 shall be 2000W, Qmark EFF4002, or equal.

17. Sheet M101 – Change ductwork going up from 26” X 24” to 34” X 16”.

18. Sheet M102 – All EF-1’s shall be 75 CFM Greenheck SP-B70 for ceiling grid mounting. Provide disconnect switch and wall cap.

19. Sheet M103 – Provide the following sheetnote and description for AHU-7 – “Provide new unit on 4” high concrete housekeeping pad.”

20. Sheet M103 – L-4 shall be used as an exhaust damper.

21. Sheet M103 – All ductwork in room 131 shall be painted. All painted duct shall be paint grip galvanized steel exterior.

22. Sheet M104 – All ductwork in rooms 201B and 201C shall be painted. All painted duct shall be paint grip galvanized steel exterior.

23. Sheet M402 – Add thermostat control and room temperature monitoring for

CUH-1.

24. Sheet M402 – Refer to AHU-7 on sheet M103 – Controls contractor shall use motorized damper for L-4 as exhaust damper. AHU-7 shall have mixing box controls for L-3 and return air. Provide all controls and sequence for this for economizer operation.

25. Sheet M501 – Reference VAV schedule. Add VAV 4-9-5. VAV shall have same characteristics as VAV 3-7-6 but be 500 CFM.

26. Sheet E201 – Add sheetnote 14 tag to panel LPA B-1. Panel shall be replaced.

27. Sheet E201 – Provide 2#12, 1#12 G, 3/4” C to new circuit breaker in panel LPA B-1 for CUH-1. Provide 2 pole safety switch above ceiling.

28. Reference 10000 Special Conditions – The following Work-Related

Restrictions are going shall be placed on the contractor for the use of the building:

a. Owner and User Group shall always have two working elevators. The demo of the renovated elevator shaft shall not begin until the new elevator addition is completed and functional.

b. The User Group will be occupying classrooms adjacent to the

Auditorium until December 15th, 2024. Contractors shall not use these spaces for any work until the User Group has vacated these spaces. Following December 15th, 2024, Contractors shall have use of these spaces without restrictions.

29. Specification Section 081113 – Add De La Fontaine and Metal Products Inc.

to list of manufacturers.

30. Specification Section 105313 – Add Institutional Casework Inc. to list of manufacturers.

31. Specification Section 104310 – Add FASTSIGNS to list of manufacturers.

32. Specification Section 101100 – Add K-Pro / Educational Equipment Corporation to list of manufacturers.

33. Specification Section 126100 – Add Series Seating to the list of manufacturers.

34. Specification Section 074213 – Add Centria to the list of manufacturers.

35. Specification Section 26 55 61 – Stage Lighting Systems

a. Existing stage lighting receptacles are TWIST-LOK connectors. Cable interface for existing circuits to be TWIST-LOK to PowerCon connectors.

b. There are (18) Source 4 Multiverse spotlights on stage not (15) as indicated in the specifications. The lighting plot drawing 2.02 is correct.

c. There should be (3) U11K01 1 Button/ 1 Key Lock Entry Stations in the project (Devices C10 thru C12), not (4) as indicated in the specifications. The drawings are correct, the specification quantity is incorrect.

36. Overhead Door 2A size shall be 10’ – 0” W x 11’ – 1” H to match existing opening. Verify in field prior to construction.

a. Specification Section 083323 Overhead Coiling Doors added to this addendum.

S-1 SCD PRICE 24" x 24" / 6"ф 150 4-WAY 0.05 < 20 1, 3

S-2 SCD PRICE 24" x 24" / 8"ф 280 4-WAY 0.05 < 20 1, 3

S-3 SCD PRICE 24" x 24" / 10"ф 375 4-WAY 0.04 < 20 1, 3

S-4 CF PRICE 72"ф - 12"ф 425 2-1" SLOT 0.03 < 20 2, 4, 7, 8

S-5 CF PRICE 124" - 2 x12"ф 850 2-1" SLOT 0.05 < 20 2, 4, 7, 8

S-6 SDGER PRICE 18" x 8"" / 12"ф 200 PERFORATED 0.03 < 20 4, 7

S-7 520D PRICE 28" x 8" 533 DOUBLE DEFL. 0.03 < 20 1, 2, 6, 7

S-8 CF PRICE 120" - 2 X 8" ф 300 1-1" SLOT 0.02 < 20 4, 2, 7

S-9 SCD PRICE 24" x 24" / 8"ф 250 4-WAY 0.05 < 20 1, 7

S-10 SCD PRICE 24" x 24" / 10"ф 375 4-WAY 0.04 < 20 1, 7

S-11 SDGER PRICE 18" X 6" / 10"ф 175 PERFORATED 0.03 < 20 2, 4, 7, 8

R-1 530 PRICE 22" X 22" 1200 3/4" INCH 45 DEG 0.05 < 20 1, 2

R-2 530 PRICE 16" x 16" 600 3/4" INCH 45 DEG 0.05 < 20 1, 2

L-1 EHH-601 GREENHECK 90" H X 60" W 18.79 SFFA - - 4

L-2 EHH-601 GREENHECK 90" H X 60" W 18.79 SFFA - - 4

L-3 EHH-601 GREENHECK 48" H X48" W 7.58 SFFA - - 4

L-4 EHH-601 GREENHECK 48" H X48" W 7.58 SFFA - - 4

9. PROVIDE INSECT SCREEN ON INTAKE AND BIRD SCREEN ON EXHUAST.

8. CONTRACTOR SHALL COORDINATE WITH SUPPLIER FOR BOX AND BRANCH CONNECTION SIZES AND QUANTITIES.

REMARKS:

REMARKS

MAX. P-D.

INWC

2. FURNISH WITH OPPOSED BLADE DAMPER.

1. FURNISH WITH WHITE FINISH.

4. COLOR SHALL BE CUSTOM KYNAR SELECTION BY ARCHITECT

5. DIFFUSER SHALL BE ALL ALUMINUM CONSTRUCTION

6. MEASURE EXISTING OPENINGS AND MATCH DIMENSIONS

7. DUCT OR SURFACE MOUNTED.

REGISTERS, GRILLES, DIFFUSER AND LOUVER SCHEDULE

MODEL

NUMBER

UNIT TAG

3. FURNISH WITH 24" x 24" PANEL TO INSTALL IN CEILING GRID.

MANUFACTURER AIR PATTERNMAX. CFMFACE / NECK SIZE NC

KCTCS – Ashland CTC Main Building Phase II October 2024 System Name 470 CAWE AT50 00

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SECTION 083323 – OVERHEAD COILING DOORS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Electrically operated, jamb supported overhead insulated coiling doors that serve as service doors to the auditorium

2. Miscellaneous steel shapes and supports needed to complete installation, specifically to build jamb and head frames.

B. Related Requirements:

1. Structural Steel adjacent surrounding doors.

1.3 ACTION SUBMITTALS

A. Product Data: For each type and size of overhead coiling door and accessory.

1. Include construction details, material descriptions, dimensions of individual components, profiles for slats, and finishes.

2. Include rated capacities, operating characteristics, electrical characteristics, and furnished accessories.

3. Include description of automatic-closing device and testing and resetting instructions.

B. Shop Drawings: For each installation and for special components not dimensioned or detailed in manufacturer's product data.

1. Include plans, elevations, sections, and mounting details.

2. Include details of equipment assemblies, and indicate dimensions, required clearances, method of field assembly, components, and location and size of each field connection.

3. Include points of attachment and their corresponding static and dynamic loads imposed on structure.

Vendor shall represent (draw) the immediate context of the building’s wall construction and structural system on the shop drawings, showing connection.

4. For exterior components, include details of provisions for assembly expansion and contraction and for excluding and draining moisture to the exterior.

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5. Show locations of controls, locking devices, detectors or replaceable fusible links, and other accessories.

6. Include diagrams for power, signal, and control wiring.

C. Samples for Initial Selection: Manufacturer's finish charts showing full range of colors and textures available for units with factory-applied finishes.

1. Include similar Samples of accessories involving color selection.

D. Samples for Verification: For each type of exposed finish on the following components, in manufacturer's standard sizes:

1. Curtain slat.

2. Include Samples of accessories involving color selection.

1.4 INFORMATIONAL SUBMITTALS

A. Qualification Data: For Installer.

B. Oversize Construction Certification: For door assemblies required to be fire-rated and that exceed size limitations of labeled assemblies.

C. Sample Warranty: For special warranty.

1.5 CLOSEOUT SUBMITTALS

A. Maintenance Data: For overhead coiling doors to include in maintenance manuals.

1.6 QUALITY ASSURANCE

A. Installer Qualifications: An entity that employs installers and supervisors who are trained and approved by manufacturer for both installation and maintenance of units required for this Project.

1. Maintenance Proximity: Not more than two hours' normal travel time from Installer's place of business to Project site.

B. Sound-Control Doors: Assemblies tested in a laboratory for sound-transmission-loss performance according to ASTM E 90, calculated according to ASTM E 413, and rated for not less than the STC value indicated.

C. Accessibility Standard: Comply with applicable provisions in the USDOJ's "2010 ADA Standards for Accessible Design" the ABA standards of the Federal agency having jurisdiction and ICC A117.1.

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1.7 WARRANTY

A. Special Warranty: Manufacturer agrees to repair or replace components of doors that fail in materials or workmanship within specified warranty period.

1. Warranty Period: Two years from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Source Limitations: Obtain overhead coiling doors from single source from single manufacturer.

1. Obtain operators and controls from overhead coiling-door manufacturer.

2.2 PERFORMANCE REQUIREMENTS

A. Structural Performance, Exterior Doors: Capable of withstanding the following design wind loads:

1. Design Wind Load: Uniform pressure (velocity pressure) of 20 lbf/sq. ft. (960 Pa), acting inward and outward.

2. Testing: According to ASTM E 330/E 330M or DASMA 108 for garage doors and complying with acceptance criteria of DASMA 108.

3. Deflection Limits: Design overhead coiling doors to withstand design wind load without evidencing permanent deformation or disengagement of door components.

4. Operability under Wind Load: Design overhead coiling doors to remain operable under uniform pressure (velocity pressure) of 20-lbf/sq. ft. (960-Pa) wind load, acting inward and outward.

B. Windborne-Debris Impact Resistance: Provide glazed and impact-protective overhead coiling doors that pass missile-impact and cyclic-pressure tests according to ASTM E 1996 for Wind Zone 3.

1. Large-Missile Test: For overhead coiling doors located within 30 feet (9.14 m) of grade.

C. Seismic Performance: Overhead coiling doors shall withstand the effects of earthquake motions determined according to ASCE/SEI 7.

1. Component Importance Factor: 1.5.

2.3 DOOR ASSEMBLY

A. Door: Insulated Overhead coiling door formed with curtain of interlocking metal slats.

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B. Operation Cycles: Door components and operators capable of operating for not less than 50,000. One operation cycle is complete when a door is opened from the closed position to the fully open position and returned to the closed position.

1. Include tamperproof cycle counter.

C. Air Infiltration: Maximum rate of 1.0 cfm/sq. ft. (5.1 L/s per sq. m) at 15 and 25 mph (24.1 and 40.2 km/h) when tested according to ASTM E 283 or DASMA 105.

D. STC Rating: 26

E. Curtain R-Value: 6.0 deg F x h x sq. ft./Btu (1.057 K x sq. m/W).

F. Door Curtain Material: Galvanized steel.

G. Door Opening Size: 10’ - 0” W x 11’ - 1”. Field verify before constructing.

H. Door Curtain Slats: Flat profile slats of 3-1/4-inch (83-mm) center-to-center height.

1. Vision Panels: None.

2. Insulated-Slat Interior Facing: Metal.

3. Gasket Seal. Manufacturer's standard continuous gaskets between slats.

I. Bottom Bar: Two angles, each not less than 1-1/2 by 1-1/2 by 1/8 inch (38 by 38 by 3 mm); fabricated from hot-dip galvanized steel and finished to match door.

J. Curtain Jamb Guides: Galvanized steel with exposed finish matching curtain slats.

K. Hood: Match curtain material and finish.

1. Shape: Square.

2. Mounting: Between jambs.

L. Locking Devices: Equip door with locking device assembly and chain lock keeper.

1. Locking Device Assembly: Cremone-type, both jamb sides locking bars, operable from inside and outside with cylinders.

M. Electric Door Operator:

1. Usage Classification: Standard duty, up to 25 cycles per hour and up to 90 cycles per day

2. Operator Location: Wall.

3. Safety: Listed according to UL 325 by a qualified testing agency for commercial or industrial use; moving parts of operator enclosed or guarded if exposed and mounted at 8 feet (2.44 m) or lower.

4. Motor Exposure: Exterior, wet, and humid.

5. Motor Electrical Characteristics:

a. Horsepower: 3 hp.

b. Voltage: 115-V ac, single phase, 60 Hz. Confirm with electrical drawings.

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6. Emergency Manual Operation: Chain type.

7. Obstruction-Detection Device: Automatic photoelectric sensor.

a. Sensor Edge Bulb Color: Black.

8. Control Station(s): Interior mounted

N. Curtain Accessories: Equip door with weatherseals, pull-down strap poll hook and automatic-closing device.

O. Jambs: Steel shapes (angels, channels or tubes, as part of door system) oriented / configured to set and secure door to adjacent structural steel.

P. Door Finish:

1. Powder-Coated Finish: Color matching Architect's sample.

2. Factory Prime Finish: Manufacturer's standard color.

3. Interior Curtain-Slat Facing: Match finish of exterior curtain-slat face.

2.4 MATERIALS, GENERAL

A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

2.5 DOOR CURTAIN MATERIALS AND CONSTRUCTION

A. Door Curtains: Fabricate overhead coiling-door curtain of interlocking metal slats, designed to withstand wind loading indicated, in a continuous length for width of door without splices. Unless otherwise indicated, provide slats of thickness and mechanical properties recommended by door manufacturer for performance, size, and type of door indicated, and as follows:

1. Steel Door Curtain Slats: Zinc-coated (galvanized), cold-rolled structural-steel sheet; complying with ASTM A 653/A 653M, with G90 (Z275) zinc coating; nominal sheet thickness (coated) of 0.028 inch (0.71 mm); and as required.

2. Vision-Panel Glazing: Manufacturer's standard clear glazing, fabricated from transparent acrylic sheet or fire-protection-rated glass as required for type of door; set in glazing channel secured to curtain slats.

3. Insulation: Fill slats for insulated doors with manufacturer's standard thermal insulation complying with maximum flame-spread and smoke-developed indexes of 75 and 450, respectively, according to ASTM E 84 or UL 723. Enclose insulation completely within slat faces.

4. Metal Interior Curtain-Slat Facing: Match metal of exterior curtain-slat face, with minimum steel thickness of 0.010 inch (0.25 mm)

5. Plastic Interior Curtain-Slat Facing: Extruded PVC plastic with maximum flame-spread index of [25] [75] [200] and smoke-developed index of 450, according to ASTM E 84 or UL 723.

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B. Curtain Jamb Guides: Manufacturer's standard angles or channels and angles of same material and finish as curtain slats unless otherwise indicated, with sufficient depth and strength to retain curtain, to allow curtain to operate smoothly, and to withstand loading. Slot bolt holes for guide adjustment. Provide removable stops on guides to prevent overtravel of curtain, and a continuous bar for holding windlocks.

2.6 HOODS

A. General: Form sheet metal hood to entirely enclose coiled curtain and operating mechanism at opening head.

Contour to fit end brackets to which hood is attached. Roll and reinforce top and bottom edges for stiffness.

Form closed ends for surface-mounted hoods and fascia for any portion of between-jamb mounting that project beyond wall face. Equip hood with intermediate support brackets as required to prevent sagging.

1. Galvanized Steel: Nominal 0.028-inch- (0.71-mm-) thick, hot-dip galvanized-steel sheet with G90 (Z275) zinc coating, complying with ASTM A 653/A 653M.

2. Exterior-Mounted Doors: Fabricate hood to act as weather protection and with a perimeter sealant-joint-bead profile for applying joint sealant.

B. Removable Metal Soffit: Formed or extruded from same metal and with same finish as curtain if hood is mounted above ceiling unless otherwise indicated.

2.7 LOCKING DEVICES

A. Locking Device Assembly: Fabricate with cylinder lock, spring-loaded dead bolt, operating handle, cam plate, and adjustable locking bars to engage through slots in tracks.

1. Lock Cylinders: As standard with manufacturer and keyed to building keying system.

2. Keys: Two for each cylinder.

B. Chain Lock Keeper: Suitable for padlock.

C. Safety Interlock Switch: Equip power-operated doors with safety interlock switch to disengage power supply when door is locked.

2.8 CURTAIN ACCESSORIES

A. Smoke Seals: Equip each fire-rated door with replaceable smoke-seal perimeter gaskets or brushes for smoke and draft control as required for door listing and labeling by a qualified testing agency.

B. Weatherseals for Exterior Doors: Equip each exterior door with weather-stripping gaskets fitted to entire exterior perimeter of door for a weather-resistant installation unless otherwise indicated.

1. At door head, use 1/8-inch- (3-mm-) thick, replaceable, continuous-sheet baffle secured to inside of hood or field-installed on the header.

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2. At door jambs, use replaceable, adjustable, continuous, flexible, 1/8-inch- (3-mm-) thick seals of flexible vinyl, rubber, or neoprene brushes.

C. Astragal for Interior Doors: Equip each door bottom bar with a replaceable, adjustable, continuous, compressible gasket of flexible vinyl, rubber, or neoprene as a cushion bumper.

D. Push/Pull Handles: Equip each push-up-operated or emergency-operated door with lifting handles on each side of door, finished to match door.

E. Poll Hooks: Provide pole hooks and poles for doors more than 84 inches (2130 mm) high.

2.9 COUNTERBALANCE MECHANISM

A. General: Counterbalance doors by means of manufacturer's standard mechanism with an adjustable-tension, steel helical torsion spring mounted around a steel shaft and contained in a spring barrel connected to top of curtain with barrel rings. Use grease-sealed bearings or self-lubricating graphite bearings for rotating members.

B. Brackets: Manufacturer's standard mounting brackets of either cast iron or cold-rolled steel plate.

2.10 ELECTRIC DOOR OPERATORS

A. General: Electric door operator assembly of size and capacity recommended and provided by door manufacturer for door and operation-cycles requirement specified, with electric motor and factory-prewired motor controls, starter, gear-reduction unit, solenoid-operated brake, clutch, control stations, control devices, integral gearing for locking door, and accessories required for proper operation.

1. Comply with NFPA 70.

2. Control equipment complying with NEMA ICS 1, NEMA ICS 2, and NEMA ICS 6, with NFPA 70

Class 2 control circuit, maximum 24-V ac or dc.

B. Usage Classification: Electric operator and components capable of operating for not less than number of cycles per hour indicated for each door.

C. Door Operator Location(s): Operator location indicated for each door.

1. Top-of-Hood Mounted: Operator is mounted to the right or left door head plate with the operator on top of the door-hood assembly and connected to the door drive shaft with drive chain and sprockets.

Headroom is required for this type of mounting.

2. Front-of-Hood Mounted: Operator is mounted to the right or left door head plate with the operator on coil side of the door-hood assembly and connected to the door drive shaft with drive chain and sprockets. Front clearance is required for this type of mounting.

3. Wall Mounted: Operator is mounted to the inside front wall on the left or right side of door and connected to door drive shaft with drive chain and sprockets. Side room is required for this type of mounting. Wall-mounted operator can also be mounted above or below shaft; if above shaft, headroom is required.

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4. Bench Mounted: Operator is mounted to the right or left door head plate and connected to the door drive shaft with drive chain and sprockets. Side room is required for this type of mounting.

5. Through-Wall Mounted: Operator is mounted on other side of wall from coil side of door.

D. Motors: Reversible-type motor with controller (disconnect switch)] for motor exposure indicated for each door assembly.

1. Electrical Characteristics: Minimum as indicated for each door assembly. If not indicated, large enough to start, accelerate, and operate door in either direction from any position, at a speed not less than 8 in./sec. (203 mm/s) and not more than 12 in./sec. (305 mm/s), without exceeding nameplate ratings or service factor.

2. Operating Controls, Controllers, Disconnect Switches, Wiring Devices, and Wiring: Manufacturer's standard unless otherwise indicated.

3. Coordinate wiring requirements and electrical characteristics of motors and other electrical devices with building electrical system and each location where installed.

E. Limit Switches: Equip each motorized door with adjustable switches interlocked with motor controls and set to automatically stop door at fully opened and fully closed positions.

F. Obstruction-Detection Devices: External entrapment protection consisting of indicated automatic safety sensor capable of protecting full width of door opening. For non-fire-rated doors, activation of device immediately stops and reverses downward door travel.

1. Photoelectric Sensor: Manufacturer's standard system designed to detect an obstruction in door opening without contact between door and obstruction.

a. Self-Monitoring Type: Designed to interface with door operator control circuit to detect damage to or disconnection of sensing device. When self-monitoring feature is activated, door closes only with sustained or constant pressure on close button.

G. Control Station: Three-button control station in fixed location with momentary-contact push-button controls labeled "Open" and "Stop" and sustained- or constant-pressure push-button control labeled "Close."

1. Exterior-Mounted Units: Full-guarded, standard-duty, surface-mounted, weatherproof type, NEMA ICS 6, Type 4 enclosure, key operated.

H. Emergency Manual Operation: Equip each electrically powered door with capability for emergency manual operation. Design manual mechanism so required force for door operation does not exceed 25 lbf (111 N).

I. Emergency Operation Disconnect Device: Equip operator with hand-operated disconnect mechanism for automatically engaging manual operator and releasing brake for emergency manual operation while disconnecting motor without affecting timing of limit switch. Mount mechanism so it is accessible from floor level. Include interlock device to automatically prevent motor from operating when emergency operator is engaged.

J. Motor Removal: Design operator so motor may be removed without disturbing limit-switch adjustment and without affecting emergency manual operation.

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2.11 GENERAL FINISH REQUIREMENTS

A. Comply with NAAMM/NOMMA 500 for recommendations for applying and designating finishes.

B. Appearance of Finished Work: Noticeable variations in same piece are not acceptable. Variations in appearance of adjoining components are acceptable if they are within the range of approved Samples and are assembled or installed to minimize contrast.

2.12 STEEL AND GALVANIZED-STEEL FINISHES

A. Baked-Enamel or Powder-Coat Finish: Manufacturer's standard baked-on finish consisting of prime coat and thermosetting topcoat. Comply with coating manufacturer's written instructions for cleaning, pretreatment, application, and minimum dry film thickness.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrates areas and conditions, with Installer present, for compliance with requirements for substrate construction and other conditions affecting performance of the Work.

B. Examine locations of electrical connections.

C. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 INSTALLATION

A. Install overhead coiling doors and operating equipment complete with necessary hardware, anchors, inserts, hangers, and equipment supports; according to manufacturer's written instructions and as specified.

B. Install overhead coiling doors, hoods, controls, and operators at the mounting locations indicated for each door.

C. Accessibility: Install overhead coiling doors, switches, and controls along accessible routes in compliance with the accessibility standard.

D. Smoke-Control Doors: Install according to NFPA 80 and NFPA 105.

E. Power-Operated Doors: Install automatic doors openers according to UL 325.

3.3 STARTUP SERVICE

A. Engage a factory-authorized service representative to perform startup service.

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1. Complete installation and startup checks according to manufacturer's written instructions.

2. Test and adjust controls and safety devices. Replace damaged and malfunctioning controls and equipment.

3. Test door closing when activated by detector or alarm-connected automatic-closing system. Reset door-closing mechanism after successful test.

3.4 ADJUSTING

A. Adjust hardware and moving parts to function smoothly so that doors operate easily, free of warp, twist, or distortion.

1. Adjust exterior doors and components to be weather resistant.

B. Lubricate bearings and sliding parts as recommended by manufacturer.

C. Adjust seals to provide tight fit around entire perimeter.

3.5 MAINTENANCE SERVICE

A. Initial Maintenance Service: Beginning at Substantial Completion, maintenance service shall include six months' full maintenance by skilled employees of coiling-door Installer. Include quarterly preventive maintenance, repair or replacement of worn or defective components, lubrication, cleaning, and adjusting as required for proper door operation. Parts and supplies shall be manufacturer's authorized replacement parts and supplies.

1. Perform maintenance, including emergency callback service, during normal working hours.

2. Include 24-hour-per-day, seven-day-per-week, emergency callback service.

3.6 DEMONSTRATION

A. Engage a factory-authorized service representative to train Owner's maintenance personnel to adjust, operate, and maintain overhead coiling doors.

END OF SECTION 083323

ADDENDUM NO. 3.pdf