144100_Moving_Walks_2026-09-21.pdf

July 29, 2026

CVG Cincinnati Airport – Terminal HOK Project No.: 23.01039.00

Design Phase 1 – Design Directive #23.1 Phase 1

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SECTION 144100 – MOVING WALKS

PART 1 - GENERAL

1.1 DESCRIPTION

A. Drawings and general provisions of Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this section.

B. Respondent must clearly identify all exceptions, clarifications, or other variations from contract documents, citing the affected requirement by version date, sheet or section, paragraph or detail and page, providing the proposed substitution, alternative or economic credit represented in their response, prominently and conspicuously displayed with underline, or highlight, adjacent to or referenced in their offer pricing.

C. Error in or conflict among requirements not specifically identified in the response shall be resolved by application of the most stringent and / or beneficial to the Owner, at the sole determination of the Design Team.

D. Work Included: Provide materials for four (4) heavy-duty Moving Walks as shown and specified.

As an additional alternate, provide labor, tools, maintenance, and services necessary for the safe, orderly, professional, and complete installation, including operational verification, four (4) heavy-duty Moving Walks as shown and specified.

E. Where a component, device, system, or part of the equipment is referred to in the singular, such reference shall not limit the quantity furnished and shall apply to all such devices or parts as may be required for complete installation.

F. Logistics Plan: As part of the bid proposal, the Moving Walk contractor shall submit a detailed logistics plan including but not limited to:

1. Access to each of the wellways and a list of related work.

2. Details on any areas which shall be modified to accommodate the Moving Walk

Contractor’s equipment.

3. Identify a clear pathway, subject to Purchaser’s prior approval, for all movement and storage of equipment, material, and tools, around the property and within the building.

4. Provide a plan detailing the planned methods for hoisting of equipment including anticipated roof preparation, hoisting times and durations, and other special requirements.

5. Provide an estimated size of area needed for tools, materials, and equipment to be stored.

6. Provide a schedule of anticipated delivery, hoisting and storage dates.

7. Requirements for staging areas for each of the Moving Walks.

G. Reference notes to other specification sections are provided for convenience and do not limit the Moving Walk Contractor’s responsibility to comply with all Contract and Construction Documents.

1.2 RELATED WORK (PROVIDED BY OTHER TRADES)

A. Related Work (Provided by other trades): Items listed below pertain to all Moving Walks unless otherwise noted.

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1. Proper construction and code compliance of wellways and pits.

2. Clear, plumb, wellway with variations not to exceed 1-inch at any point.

3. Light with guard and GFCI outlets at top and bottom of each wellway.

4. Ventilation of pits, wellways and machine areas. Venting or other means to prevent accumulation of heat or requirements of venting as applicable.

5. Support beams including intermediate support if required.

6. Floor pockets and / or structural beams for support of Moving Walk truss at each end as shown on Architect’s drawings.

7. Bearing plates for concrete beams.

8. Wellway shall be enclosed in materials defined as either noncombustible or limited combustible by the building code.

9. Cladding and finishing of exposed truss surfaces.

10. Plaster, wallboard, or other substantial finish to enclose entire installation including building work adjacent thereto.

11. Patching and finishing around Moving Walk landing plates and adjacent flooring after installation.

12. Electric power feeders and fused disconnect switches or circuit breakers connected within

Moving Walk controller panels.

13. 120-volt, 20-amp fused disconnect switch for each Moving Walk including feeder wiring to controller panels for skirt, under pallet, and handrail lights.

14. 120-volt G.F.C.I. convenience outlets both pits and middle point of truss.

15. Conduit to remote locations for security / Moving Walk monitoring systems. All remote wiring from wellways and machine areas to device locations shall be installed under this section.

16. Indicated or required chases and openings.

17. Finish painting except as noted.

18. Guarding and protecting wellway, including provision of OSHA-compliant barricades

(maintained by Moving Walk Contractor), during construction.

19. Adequate and convenient on-site storage space for tools and materials and lay-down space in proximity to wellways.

20. Permanent electric power for testing and adjusting equipment.

1.3 REFERENCES

A. Applicable Codes (latest edition):

1. American Society of Mechanical Engineers, ASME A17.1 – 2010, Safety Code for

Elevators and Escalators.

2. Commonwealth of Kentucky Building Code – 2018.

3. International Building Code – 2015.

4. National Fire Protection Association – NFPA 72.

5. National Electric Code – NFPA 70.

6. American Welding Society (AWS) D1.1 – Structural Welding Code – Steel.

7. American National Standard Accessible and Usable Buildings and Facilities (ANSI

A117.1).

8. Local Codes and authorities having jurisdiction.

1.4 SITE REVIEW AND BID SUBMISSION

A. Examination: Moving Walk Contractor is required to review Contract Documents, existing site conditions, and existing equipment for compatibility with its product prior to submitting quotation.

Site review shall include, but not be limited to adequacy of access, structural supports, etc.

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B. Investigation and structural calculations are required to determine requirements for hoisting the equipment into place.

C. Bidder shall identify any conflicts or problems / issues with the implementation of this work. In the absence of such identification, the bidder responsible for existing conditions and modifications to the building areas, etc. pertaining to this work, shall be the responsibility of the Moving Walk Contractor.

D. The Purchaser will not pay for changes to building structure, structural supports, mechanical, electrical, or other systems required to accommodate Moving Walk Contractor’s equipment if not identified prior to award of contract.

1.5 DEFINITIONS

A. The following definitions apply to the work of this section:

1. “Purchaser/Owner” as used herein, refers to the Cincinnati / Northern Kentucky International Airport.

2. “Architect”: as used refers to HOK.

3. “General Contractor”: refers to the single point of contractual responsibility with the Owner to furnish labor and materials for the execution of work as specified herein.

4. “Moving Walk Contractor”: refers to the contractor having the Contract with Purchaser to furnish labor and materials for the execution of Work as specified herein.

5. “Manufacturer”: refers to those parties responsible for fabrication, assembly, maintenance recommendations and initial warranty of individual Moving Walk system components.

6. “Installer”: refers to the Moving Walk Contractor.

7. “Consultant”: refers to the Syska Hennessy Group.

8. “Provide”: to furnish and install, Code-compliant and complete for safe operation, unless specifically indicated otherwise.

9. “Install”: to erect, mount and connect complete with related accessories.

10. “Supply”: to purchase, procure, acquire and deliver complete with related accessories.

11. “Work”: labor and materials required for proper and complete installation.

12. “Wiring”: raceway, conduit, fittings, wire, boxes, and related items.

13. “Concealed”: embedded in masonry or other construction, installed in furred spaces, within double partitions or hung ceilings, in trenches, in crawl spaces or in enclosures.

14. “Refurbish”: to restore to a like new condition.

15. “Exposed”: not installed underground or “concealed” as defined above.

16. “Indicated”, “shown”, or “noted”: as indicated, shown or noted on Drawings or as specified.

17. “Similar” or “equal”: of base bid manufacturer, equal in materials, weight, size, design and efficiency of specified product, conforming to “acceptable manufacturers.”

18. “If necessary to meet Code requirements”: Provide per latest applicable Code for new

Moving Walks.

19. “Defective Work”: Is defined to include, but not by way of limitation, operation or control system failures, performances below specified ratings, excessive component wear, unusual deterioration and/or aging of materials or finishes, unsafe conditions, the need for excessive maintenance, abnormal noise or vibration, and similar unusual, unexpected, and unsatisfactory conditions.

20. “Reviewed,” “satisfactory,” “accepted,” or “directed”: as reviewed, satisfactory, accepted or directed, by or to Owner.

21. “Final Acceptance”: Document to be signed upon satisfactory demonstration of modernized equipment’s performance and contractual compliance, following the completion of all work

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under this specification on all Moving Walks, and which marks the end of all Interim Maintenance and the initiation of Warranty Maintenance on all equipment.

1.6 INSURANCE

A. Provide per the Cincinnati / Northern Kentucky International Airport guidelines.

1.7 CONTRACT

A. The Contract form to be used shall be issued by the Cincinnati / Northern Kentucky International Airport.

B. Contract includes all engineering, labor, tools, materials, equipment, required to complete the specified Work, except those items identified as to be performed by others. Moving Walk Contractor shall familiarize itself with the site conditions and include all incidental Work that might occur or be required as part of this project.

C. Moving Walk Contractor shall advise Consultant of any discrepancies or ambiguities found in the project specifications or drawings prior to submitting a bid.

1.8 OPERATION PERFORMANCE

A. The control system shall provide smooth operation free of jars or bumps.

B. The unit shall be heavy duty design; commercial designs and components are not acceptable.

C. Hours of operation shall be considered as twenty (20) hours per day, seven (7) days per week.

D. The Moving Walk units shall be reversible.

E. Speed of operation shall not exceed 100 FPM (feet per minute).

F. The no load to full load speed shall not exceed 3-percent of the rated speed.

G. The speed of the Moving Walk pallet and handrail shall continuously be the same and shall not vary.

H. Harmonic Isolation is required for all equipment to ensure electrical noise is not fed back into the building systems.

I. Noise: Shall not exceed 65-decibels measured at the landing plate and at the pallet when located mid-way to the rise of the unit.

J. Prior to final acceptance and prior to the termination of the maintenance period, the Moving Walks shall be adjusted as required to meet these performance requirements.

1.9 SUBMITTALS

A. Shop Drawings and Samples:

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1. Shop Drawings: Provide complete and fully dimensioned shop drawings. Include layouts of pits, job specific power and heat data for all equipment, static and impact load section points and required clearances. Piecemeal submittal packages will be rejected.

2. Product Data: Provide product data on all visible to public signage.

3. Samples: Materials and finishes exposed to public view, in manufacturers standard sizes, as applicable.

4. Loads shall be computed for heavy-duty transit type Moving Walks as specified herein.

5. Moving Walk intermediate support points shall be provided by Moving Walk Contractor where required and shall be coordinated with structural bearing locations for intermediate support. Details and calculations shall be submitted by the Moving Walk Contractor for coordination.

B. Equipment Brochure and Service Manuals:

1. Provide quantities as indicated herein.

2. Before acceptance of work, furnish one (1) set of job specific manufacturer’s equipment brochures and service manuals.

3. Manuals shall be model / series specific. Assemble, organize and index printed materials in organized fashion, and provide a complete digital set, consisting of:

a. Equipment and components, descriptive literature.

b. Record / final layout drawings.

c. Operating instructions.

d. Lubrication instructions.

e. Wiring diagrams.

4. Provide one (1) complete set of “record” straight-line wiring diagrams showing all electrical circuits in the wellway.

5. Keys: Before acceptance of work, furnish six (6) sets of keys for all key switches installed as part of this project, including controller cabinet, stop switch, and others if provided.

Coordinate supply of key switches with Owner’s representative.

1.10 QUALITY ASSURANCE

A. Qualifications:

1. Installer Qualifications: Moving Walk Contractor shall hold a valid license from the

Commonwealth of Kentucky Department of Housing, Buildings and Construction – Licensing Branch.

2. Manufacturer Qualifications: The design, engineering, and manufacture of major Moving Walk components such as machines, controllers, etc. shall be from manufacturers that have been in the business for the minimum of the last ten (10) years. Equipment shall have a history of successful operation under similar conditions for a minimum of the last five (5) years.

a. Show evidence of successful experience in complete installation and maintenance of manufacturer’s Moving Walk equipment for at least five (5) years.

b. Employ sufficient, competent personnel within fifty (50) miles of the project to manage construction and maintenance duties.

c. All welding on the project shall be performed by a certified welder. Show proof of certification prior to any welding operations.

B. Quality and Gauges of Materials:

1. New, the best of their respective kinds are free from defects.

2. Gauges as noted.

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3. Components shall be made available to the Purchaser for a period of not less than ten (10) years.

1.11 PRODUCT DELIVERY, STORAGE AND HANDLING

A. Ship in original crated sections of a size to permit passage through available space.

B. Storage for gang boxes, tools, equipment and material is minimal at the site; review with Purchaser in advance to identify storage locations and verify their adequacy in any bid response or proposal.

C. Obtain approval and schedule delivery of material to meet Purchaser requirements and avoid interference with performances or other facility activities.

D. Hoisting and Storage: Provide with any bid response or proposal, an intended method of hoisting new machines and controllers to rooftop. Include sequence, timing, location, pathing, size and other conditions of area needed for tools, materials and equipment to be delivered, transported, received and stored. Storage of equipment and materials shall be coordinated with Owner.

1.12 SEQUENCING AND SCHEDULING

A. Schedule of Operations:

1. Before commencing Work, Moving Walk Contractor shall submit a complete plan and schedule of its proposed operations for approval. In preparation of its plan and schedule, the Moving Walk Contractor shall make allowance for and include the following:

a. Preparation of equipment and material submittal.

b. Review of each submittal.

c. Manufacturing lead times for the equipment.

d. Payment requirements, shipping durations and anticipated delivery dates identified as milestones.

e. The schedule shall be presented in Gantt chart format using Microsoft Project software or equivalent.

f. The schedule shall be updated and resubmitted when requested.

B. Progress Payments: Schedule of Values shall serve as the basis for timing and amount of progress payments and are subject to review and acceptance prior to award of Contract.

C. Interruptions of Building Service:

1. Work shall be performed in strict compliance with the Project Schedule established by the

Purchaser for this project. The Purchaser shall be notified in advance of any operations that may affect staff, patrons or daily building operations.

2. All Work shall be done with a minimum amount of interference to the operation of the building. The Moving Walk Contractor shall not interrupt any normal Moving Walk service without the prior written permission of the Purchaser.

D. Work May Begin Only After:

1. Detailed Project Schedule has been approved.

2. All components needed for the completion of the first or next car to be modernized are on site and have been visually inspected as being complete, correct and in new and undamaged condition before the corresponding Moving Walk is removed from service.

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1.13 CONSTRUCTION MEETINGS

A. Pre-Construction Meeting: Moving Walk Contractor shall attend a pre-construction conference with the Purchaser’s Project Manager and Consultant to review roles and responsibilities of the project team, including paperwork processes, submittals, change orders, payment applications, site protocol and access, project phasing and planned construction activities.

B. Construction Meetings: Moving Walk Contractor shall attend construction meetings as called by Purchaser or Consultant to discuss progress and items in need of coordination. Meetings shall be held as determined necessary by Purchaser’s Project Manager and Consultant.

1.14 WARRANTY

A. Provide project warranty agreeing to replace / repair / restore defective materials and workmanship of Moving Walk work which may develop within twelve (12) months from final date of completion and acceptance of the entire installation by the Purchaser’s Representative.

“Defective” is hereby defined to include, but is not limited to, operation or control system failures, performances below required minimums, excessive wear, unusual deterioration or aging of materials or finishes, rust, unsafe conditions, the need for excessive maintenance, abnormal noise or vibration and similar unusual, unexpected, and unsatisfactory conditions.

1.15 MAINTENANCE SERVICE

A. Interim Maintenance: Submit with base bid a separate monthly price to provide Full Service, as described in Paragraph B below, on the Moving Walks, from the first day of the month following contract award until the first Moving Walk is removed from service for modernization. This price shall be adjusted once Moving Walks are removed from service until the Moving Walk modernization is completed. Coverage shall be in accordance with Purchaser’s Maintenance Agreement.

B. Warranty Maintenance: Provide twelve (12) month warranty maintenance service during warranty period, with service performed by licensed and trained mechanics. Warranty maintenance shall commence upon Substantial Completion and acceptance of all Moving Walk work and shall include examination, adjustment, lubrication, parts replacement, tests, and emergency service including the Monitoring System.

1. The Moving Walk Contractor shall keep the Moving Walks maintained to operate at the original contract speed, as designed and installed by the manufacturer.

2. Maintenance is to be performed during regular working hours of regular working days.

Examinations shall be performed semi-monthly, providing a minimum of two (2) hours, per Moving Walk, for a total of four (4) hours per visit, of preventative maintenance service.

Maintenance shall be scheduled for a minimum of 4 hours per visit. All preventative maintenance visits shall be scheduled with Purchaser in advance.

3. A log of all site visits, whether for preventive maintenance or resulting from trouble reports and call backs, shall include the date, arrival time, technicians’ names, designation of Moving Walk(s) worked on, nature and scope of work performed. Log(s) to be maintained in respective machine areas (or, at purchaser’s request, security check-in station) from Final Acceptance until expiration of warranty maintenance or any subsequent contractual maintenance period.

4. The Moving Walk Contractor shall not be required to make renewals or repairs necessitated by reason of negligence or misuse of the equipment or by reason of any other

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cause beyond the Moving Walk Contractor’s control except ordinary wear and tear unless the Moving Walk Contractor receives just compensation.

5. Provide emergency and trouble call service at no additional cost to Purchaser. Calls shall be answered promptly at all hours of the day or night, seven days a week. Emergency calls shall be responded to within thirty (30) minutes during weekday business hours and to after-hour trouble calls within one (1) hour. Regular or overtime work required due to equipment failures, will not be charged to the Purchaser.

6. Conduct safety tests as required by local jurisdiction, including test weights, instruments, and submitting documentation to the appropriate authority.

7. No fewer than ninety (90) calendar days prior to the expiration of the equipment warranty, the Moving Walk Contractor shall send and confirm receipt of written notification to the Purchaser that the initial warranty/maintenance period is nearing its end and cooperatively determine a date that a technician shall be available to facilitate access to all equipment, its dedicated spaces and all maintenance and callback records for inspection and review.

8. Prior to thirty (30) days of the warranty maintenance expiration, the Moving Walk Contractor shall assign their internal quality control individual to perform a thorough examination of all the Moving Walks covered under the contract. At the end of this inspection, the Moving Walk Contractor shall provide a written report verifying the equipment is operating per the contract documents. Should the Moving Walk Contractor find any deficiencies, they will provide a written plan for correction with specific time frames.

If the deficiencies are not corrected prior to the expiration of the warranty maintenance period, the warranty maintenance period will be extended for a minimum of ninety (90) days or longer, if necessary to complete the work. At the completion of the corrective work, the Moving Walk Contractor will provide written notification that the work is completed and modify warranty and warranty expiration dates if required. The Purchaser or their assigned representative reserves the right to verify the work has been completed.

9. Within thirty (30) days of receiving said notice, the Purchaser or their representative shall at their option conduct a scheduled, thorough maintenance inspection of all Moving Walks covered under the contract. At the end of this inspection, the Purchaser shall give the Moving Walk Contractor written notice of any deficiencies found. The Moving Walk Contractor shall be responsible for correction of these deficiencies, including a technician’s return for re-inspection and all other costs of re-inspection, without additional cost to the Purchaser, within thirty (30) days of receipt of such notice.

10. In the event the Moving Walk Contractor is delayed in providing the initial notice, both the equipment warranty and its maintenance shall continue indefinitely, uninterrupted, at no additional cost to the purchaser, but no less than ninety (90) days from the date notice is initially provided.

11. This requirement shall survive and be independent of any agreement between Moving Walk Contractor and General Contractor or between Purchaser and Moving Walk Contractor.

12. Any maintenance prescribed by the manufacturer, mandatory by Code or otherwise required or necessary for safe and proper performance of the equipment shall be included, whether specifically identified in this scope.

13. When any Moving Walks experiences repetitive or related failures, with occurrence more frequent than ninety (90) days mean time between failures, the contractor shall, within twenty-four (24) hours of the second occurrence, immediately prepare and deliver to the Purchaser a clear written description of findings, causes, actions, status and horizon of satisfactory correction.

C. Contractual Maintenance: Provide separate pricing for all labor and material costs for five (5) year Moving Walk Maintenance Service to continue past the expiration of the Warranty Maintenance period.

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1.16 PROTECTION OF PERSONS AND PROPERTY

A. The Moving Walk Contractor shall ensure that all their personnel observe the Purchaser’s construction protocol when on premises or while performing any work.

B. The Moving Walk Contractor shall be responsible for initiating, maintaining and supervising all safety precautions and programs in connection with the Work.

C. The Moving Walk Contractor shall take reasonable precautions for the safety of, and shall provide reasonable protection to prevent damage, injury or loss to:

1. Employees and other persons who may be affected thereby.

2. The work, materials, and equipment to be incorporated therein, whether in storage on or off the site, under the care, custody or control of the Moving Walk Contractor or any of his Subcontractors or Sub-Subcontractors.

D. The Moving Walk Contractor shall comply with all applicable laws, ordinances, rules, regulations and lawful orders of public authority having jurisdiction for the safety of persons, property or to protect them from damage, injury or loss. They shall erect and maintain, as required by existing conditions and progress of the Work, all partitions for safety and protection, including posting danger signs, and other warnings against hazards, promulgating safety regulations and notifying Purchaser and users of adjacent utilities.

E. The Moving Walk Contractor shall designate a responsible member of his organization whose duty shall be to ensure that all work is being performed safely and, in a manner, to prevent accidents and in strict compliance with all governing regulations. This person shall be the Moving Walk Contractor’s Superintendent unless otherwise designated in writing by the Moving Walk Contractor to the Purchaser.

F. In any emergency affecting the safety of persons or property, the Moving Walk Contractor shall act, at their discretion, to prevent potential damages, injury or loss.

1.17 PERMITS AND INSPECTION FEES

A. The Moving Walk Contractor shall obtain without cost to the Purchaser, all permits, and certificates as required from the Commonwealth of Kentucky Department of Housing, Buildings and Construction – Elevator Inspection Station.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Products from individuals, firms or corporations regularly engaged in manufacturing Moving Walk components comparable with this Contract and in satisfactory operation for a period of not less than five (10) years. Refer to Paragraph 1.10.B in this specification for further information.

B. Qualified Bidders / Models – (in alphabetical order): All models shall be provided with Heavy Duty Transit Features

1. KONE U.S.

2. Otis Elevator Company

3. Schindler Elevator Corporation

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4. TK Elevator

C. Substitute products shall not be offered as a base bid unless agreed upon beforehand in writing.

It is the intent of this specification that the design team be able to review comparable offers between bidders. If substitute products are bid without prior knowledge, the design team reserves the right to reject the offer in its entirety. Any references to model products are not intended to supersede any specification requirement.

2.2 MATERIALS

A. Aluminum: Extrusions as per ASTM B221.

B. Plywood: PS–1–83, A–D Interior Grade Douglas fir. Fire treated per AWPA with a suitable water-soluble fire-retardant formation; U.L. FR–S fire hazard classification.

C. Sheet Steel (Painted) –ASTM A1008; cold-rolled, stretcher-leveled, furniture grade; free from defects.

D. Stainless Steel (Interior Applications): As per ASTM A167, Type 304 or 441 series (or equivalent), with finish as specified.

E. Stainless Steel (Exterior Applications): As per ASTM A167, Type 316 series (or equivalent), with finish as specified.

F. Structural Steel: As per ASTM A36.

2.3 OUTLINE OF EQUIPMENT

A. Moving Walks (4):

1. Pallet sizes 54-inch width

2. Appx. Length: 200’

3. Speed, in FPM: 100

4. Configuration: Linear

5. Arrangement Reversible

6. Machine type: AC induction motor

7. Drive: AC variable frequency

8. Balustrade: Glass

9. Newels: Aligned at landings

10. Deck: Low inner and outer

11. Deck Finish: Stainless Steel No. 4 brushed.

12. Molding and trim: Stainless Steel No. 4 brushed

13. Skirt panels: Match deck material.

14. Skirt Finish: Stainless Steel No. 4 brushed

15. Handrail: Black with under handrail lights

16. Pallet: Cleated with Tread Demarcation

17. Demarcation: Pallet Demarcation Lights at landings

18. Skirt Lighting: Entire Length of Moving Walk

19. Slow Down: Sleep Mode Functionality

B. Safety Features:

1. Key operated start switches

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2. Emergency stop buttons or switches.

3. Landing skirt switches

4. Broken pallet-chain device

5. Main drive shaft brake

6. Fail-safe service brake

7. Pallet upthrust device.

8. Pallet level device.

9. Missing pallet device

10. Reversal stops the device.

11. Handrail speed monitoring device

12. Handrail guards

13. Handrail entry device

14. Overload protection.

15. Comb-pallet impact device.

16.

17. Passenger safety signs

18. Monitoring System: As specified.

2.4 MACHINE AREA EQUIPMENT

A. Machine: The drive machine shall be connected to the main drive shaft by toothed gearing, a coupling, or a chain. Provide vibration isolation, of an approved type, which shall effectively prevent transmission of machine vibration to the building structure. The machine shall run in oil tight housing.

B. Motor: Provide reversible motor(s) that drive only one Moving Walk. Motor shall be alternate current induction type with a regenerative drive, if available with sleep mode, designed to develop a high starting torque with low starting current.

C. Provide regenerative VVVF motor drives for all Moving Walks.

1. The driver shall be capable of varying the torque on the motor during acceleration and deceleration.

2. The drive shall be capable of on-site programming the volts per Hertz acceleration and deceleration ride profiles to adjust the ride quality to drive control characteristics.

3. The flux vector drive shall control AC induction motors using a high resolution, dual channel optical reader.

4. The flux vector drive shall be capable of delivering 100-percent rated motor torque from base speed down to zero speed.

5. The flux vector drive shall not use DC injection for slowdown braking.

6. The flux vector drive shall be adjustable to achieve the required current motor voltage and frequency to match the characteristics of the hoist motor.

7. The drive shall not create excessive audible noise in the Moving Walk motor.

8. The drive shall be capable of delivering sufficient current to accelerate the Moving Walk to contract speed at the rated load.

9. Moving Walk drive motors shall be rated for soft-start operations and be supplied with the applicable soft-start variable frequency drives.

D. Brake:

1. Electromechanical brake to safely decelerate, stops and hold rated load per Code requirements. Brake shall stop Moving Walk at a constant rate not greater than three feet/second².

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2. The brake coil shall be insulated to Class F.

3. A monitor shall be provided, and if brake lining becomes insufficient for safe usage, restart of the Moving Walk shall be prevented.

E. Controller: Provide enclosed controller panels with ventilated cabinets and hinged or removable doors. Provide permanently marked symbols or letters identical to those on wiring diagrams adjacent to each component. Mount controller so that it can be easily accessed either from the wellway or from its mounting location. Provide the following:

1. All high voltage (110-volt or above) contact points inside the controller cabinet shall be protected from accidental contact when the doors are open.

2. The controller shall be separated into two distinct halves, Motor Drive side and Control side. High voltage motor power conductors shall be routed to be physically segregated from the rest of the controller.

3. Field conductor terminations shall be segregated; high voltage (greater than 30-volt DC and 100-volt AC) and low voltage (less than 30-volt DC).

4. Controllers shall be designed, tested, and certified for Electromagnetic Interference (EMI) immunity in compliance with EN12015.

F. Components: The microprocessor-based group dispatcher and communications network shall be designed and installed to meet the following requirements:

1. Provisions shall be made so that revisions/modifications can be made at a future time. It shall be further designed so that there will be a minimum shutdown time should changes be required.

2. The latching circuitry (outputs) shall be a fail-safe design that turns off all the outputs in the event of a processor malfunction.

3. Power Supplies: All power supplies utilized shall be UL recognized. They shall all have short circuit protection.

4. Frame: All assemblies, power supplies, chassis, switches, relays, and other items shall be securely mounted on a substantial, self-supporting steel frame. The equipment shall be completely enclosed with covers. No equipment is to be mounted on the covers.

5. Wiring: All factory wiring shall utilize UL labeled copper wires. All wiring interconnections shall be neatly routed. All wiring connections to studs of terminals shall be made by means of solder or solder-less lugs.

6. Marking: All components shall be clearly and permanently identified adjacent to each device and shall be identical to the wiring diagram.

7. Provide extender boards when computing devices are used inside a computer chassis to have access to the printed circuit cards utilized.

8. Electronic time delay devices shall use stable capacitor or crystals as the time base.

G. Printed Circuits and Related Hardware:

1. All solid-state hardware and devices shall have built-in noise suppression devices that provide a level of noise immunity compliant with EN12015.

2. All inputs from external devices (such as pushbuttons) and all outputs to external devices

(such as indicators, relays) shall be isolated.

3. The use of relays as input / output devices is not acceptable.

4. A separate regulated power supply shall be used for each computer chassis.

5. The control circuits shall be so designed so that one side of the power supply is grounded to provide for testing.

6. Under no circumstances shall the safety circuits be affected by accidental grounding of any part of the system.

7. In the event of a power failure or interruption, the system shall be designed so that it will start properly when power is returned.

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8. System memory shall be provided so that data shall not be lost in the event of a power failure or disturbance.

H. Diagnostic Tools: Moving Walk Contractor shall provide manufacturers standard or on-board diagnostic tools in all controllers and documentation required for the adjustment, troubleshooting, and reprogramming of the Moving Walk system upon completion, including:

1. Passwords or identification codes require you to gain access to each software program to perform diagnostics or program changes.

2. A composite listing of the individual settings chosen for variable software parameters stored in the software programs.

3. A complete dictionary of fault codes with recommended steps for resolution, in sequence from highest to lowest probable cause.

2.5 OPERATING AND SAFETY DEVICES

A. Provide a spring return key operated type-starting switch for manual starting, located at the newels so that the pallets are within sight.

B. Fault Indicator: Provide ends of truss with fault indicator to display source of fault without removal of equipment access plate. Locate indicator in handrail inlet box or deck board visible from landing plate.

C. Diagnostic Access Port: Provide landings with diagnostic access port.

D. Provide emergency stop buttons or other types of manually operated switches, which shall activate an alarm and interrupt the power to the driving machine, located at the newels on the right side facing the Moving Walk.

1. Buttons or switches shall be designated red in color and be protected against accidental contact but have an unlocked cover readily removable for access.

2. The cover shall be marked "Emergency Stop; Move (slide / lift) Cover; Push Button." letters shall be minimum 1/2-inch high for "Emergency Stop" 3/16-inch for other wording.

3. The buttons or switches are prohibited to start the drive machine.

E. Provide a speed governor that causes interruption of power to the drive machine if the speed of the pallets exceeds a set value not greater than 20-percent of the rated speed. The governor shall be of the manual reset type. The governor is not required where an alternating-current squirrel motor is used, and the motor is directly connected to the driving machine.

F. Provide a broken pallet-chain device that causes interruption of power to the drive machine if the following occurs:

1. A pallet-chain breaks.

2. Excessive sag occurs in either pallet chain when no automatic tension device is provided.

3. Device shall be of the manual reset type.

G. Provide a broken drive-chain device that causes application of the brake on the main drive shaft and stops the drive machine if the drive chain parts. Device shall be of the manual reset type.

H. Provide a machine stop switch, which causes interruption of power to the drive machine and brake, where access is provided.

I. Provide skirt obstruction devices, which cause interruption of the power if an object is accidentally engaged between the pallet and the skirt as the pallet approaches the comb plate.

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J. Provide a reversal stop device that causes interruption of the power at the drive machine motor and brake in case of accidental reversal of travel. Device shall be of the manual reset type.

K. Provide a pallet upthrust device that causes interruption of the power at the drive machine motor and brake should a pallet be dislodged against the track.

L. Provide a pallet level device located at the wellway of the Moving Walk. Device shall detect downward movement displacement of 1/8-inch or greater at the riser end at either side of the pallet. When activated, the device shall cause the Moving Walk to stop prior to the pallet entering the comb plate. Device shall be of the manual reset type.

M. Provide a disconnected motor safety device that causes the application of the brake if the motor becomes disconnected from the gear reducer - provided that the drive motor is attached by means other than a continuous shaft, coupling or toothed gearing. Device shall be of the manual reset type.

N. Provide a handrail speed-monitoring device that will cause activation of the alarm whenever the speed of either handrail deviates from the pallet speed by more than 10-percent or more, the device shall interrupt the power to the drive machine motor and brake if the speed of 10-percent or more is continuous for more than 2-seconds. Device shall be of the manual reset type.

O. Provide a handrail entry device at each newel. Operation shall be in the entry direction only.

Device shall be of the manual reset type. The device interrupts the power to the drive machine motor and brake if either of the following occurs:

1. An object becomes caught between the handrail and the guard.

2. An object approaches the area between the handrail and the guard.

P. Provide a missing pallet device that detects a missing pallet and stops the operation prior to the gap from the missing pallet exiting from the comb plate. Device shall be of the manual reset type.

Q. Provide a comb-pallet impact device. Device shall be of the manual reset type. The device shall interrupt the power to the drive machine motor and brake if either of the following occurs:

1. A horizontal force in the direction of travel is applied at either side or at the center of the front edge of the comb plate. Force values shall not exceed code maximums.

2. A resultant vertical force in the upward direction is applied at the center of the front of the comb plate. Force values shall not exceed code maximums.

R. Provide green pallet demarcation lights located below the pallet landings. At each landing, provide two (2) fluorescent lamp fixtures as a minimum. Arrange lamp fixtures parallel to the comb plate (leading edge) with the first lamp located directly below the teeth line, space lamp accordingly between the side edges of the pallets and the skirt panel.

S. Provide visible safety signs per code at both landings.

T. Wiring: Provide all necessary wiring throughout the Moving Walk system, including a minimum 10-percent spare conductors. Provide copper insulated wiring with flame retarding and moisture resisting the outer cover. Installation in galvanized metal wireways and raceways. All terminations shall be insulated to maintain integrity of wiring. Flexible conduit may be used for short connections.

U. Work light and plug receptacles: provide in machine and pit area with lamp guards.

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V. Maintenance Drive Unit: Means shall be provided for reduced speed maintenance operation that shall be controlled by a manual handset. When operated, the Moving Walk shall run in the direction selected, at a speed of not more than 25-percent of the rated speed. The speed shall be maintained when pallets are removed for servicing. Moving Walk operation shall be continuous as long an up or down button on the handset is being pressed. The handset shall have a 10’-0” long retractable cord with a plug connector. When plugged into a receptacle, there shall be no means of operating or running the Moving Walk except by the service handset. Receptacles shall be in each pit.

W. Sleep Mode Operation shall comply with the following:

1. The acceleration and deceleration rates of the Moving Walks shall not exceed 1.0 ft/sec2

2. The rated speed is not exceeded.

3. The minimum speed of Moving Walks shall not be less than 10 FPM (feet per minute).

4. The speed of the Moving Walk shall not automatically vary during inspection operation mode.

5. Passenger detection means shall be provided at both landings of the Moving Walk such that:

6. Detection of any approaching passenger shall cause the Moving Walk to accelerate or maintain the full Moving Walk in compliance with paragraphs 1 through 4 above.

7. Detection of any approaching passenger shall occur sufficiently in advance of boarding to cause the Moving Walk to attain full operation speed before a passenger walking at a typical speed reaches the comb plate.

8. Passenger detection means shall remain active at the egress landing to detect any passenger approaching against the direction of Moving Walk travel and shall cause the Moving Walk to accelerate to full rated speed and sound an alarm bell at the approaching landing before the passenger reaches the comb plate.

9. Redundant sensors below each handrail return are provided.

X. Passenger Detection Means:

1. Moving Walks shall be provided with four (4) sets of angled infrared photoelectric proximity or radar detectors. Detectors shall be installed in the lower newel cladding at both ends of the Moving Walk near handrail entry points. They shall be radar type manufacturers’ standard sensors LT transmitters and LR receivers, Series 110 with stainless steel No. 4 brushed housings or approved equal. Each Moving Walk end shall be provided with 2-channel multiplexed photoelectric amplifiers, radar type manufacturer’s standard Sensors model PAB20, or approved equal.

2. Means shall be provided to detect failure of the passenger detection means and shall cause the Moving Walk to operate at full rated speed only.

2.6 WELLWAY EQUIPMENT

A. Truss: Structural steel truss or stanchion type (Provide the more robust design to afford a transit heavy duty model. The design shall carry full-capacity load including exterior and balustrade facing materials. Provide Moving Walk truss mounting angles with attachments. They shall be sized as required to install Moving Walks, for lengths and vertical rise as indicated on contract drawings. Provide all welded construction. The Moving Walk truss or stanchion design shall have a maximum deflection of 1:1000 of the spans between supports. Submit documentation with bid on type and comparison of truss vs. stanchion based design.

B. Moving Walk Structural Systems: Engineered to withstand dead load of truss and equipment, plus live load of not less than 100 pounds per square foot applied to full width and length.

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C. Connect to building structure with:

1. Framing angles.

2. Truss extension where required.

D. Drip Pan: Oil tight, steel construction, reinforced per code loading requirements that form a working floor, continuous for the entire width and length of truss. Cross bracing or other obstacles shall not be permitted on the inner surfaces of the truss cover to allow for easy cleaning and debris removal. The drip pan shall be of sufficient size to collect any oil and grease drippings to contain and prevent the decontaminated material from entering the drain system.

E. Tracks: Steel construction, reinforced and rigidly mounted to maintain alignment and ensure smooth operation of running gear. Provide galvanized sheet steel gutters under the entire length of the tracks.

F. Pallet Chains: High-grade steel links with hardened pins connecting adjacent pallets and arranged to distribute load evenly over engaged drive sprockets. Synthetic composition or rubber rollers with sealed ball bearings shall provide a continuous chain design that permits inspection and operation while running without pallets in place. Adjustment that prevents sagging, adjacent pallets from touching and maintains constant spacing of pallets shall be automatic under various loading conditions. The chain shall not require lubrication. A minimum safety factor of 6 shall be provided for all step chains.

G. Pallets:

1. Steel or aluminum construction reinforced to maintain alignment under maximum eccentric loading conditions and sufficiently fastened to the drive chain or link axles. Pallet rollers shall have hermetically sealed ball bearings and be with minimum 3-inch diameter polyurethane tires which prevent flat spots. The treads and riser shall be cleated die cast aluminum with square edges and coated or lined with fireproof sound deadening material on the underside. Face of riser shall constantly mesh with adjacent pallets. Entire pallet shall be removable from unit without disturbance of balustrade or pallet chains.

2. Pallet Demarcation Markings: Provide a 2-inch-wide safety yellow paint stripe on the inside edge of each tread at the juncture of the adjacent pallet and on both side edges of the pallet treads. Emron or equivalent aircraft / automotive paint that provides extended durability is acceptable.

3. Minimum pallet loading shall be 320 pounds per pallet.

H. Handrails: V or C Shaped; laminated canvas and rubber construction. Handrails shall be spliced and vulcanized with inconspicuous smooth joints. Provide under handrail lights the entire length of the Moving Walk.

I. Handrail Guide: Provide stainless steel No. 4 brush guides. Provide a slim line assembly consisting of a track to guide the handrail. Guides shall be smooth and free from defects within outer housing fastened to and matching curvature of balustrade. Housing finish to match decking.

Provide guards per code.

2.7 BALUSTRADES:

A. Interior panels:

1. Transparent glass tempered to meet the ANSI Z97.1 code requirements. The glass area shall be free of mechanical devices or equipment but shall be adequate to support handrail guides and handrail.

2. Panels shall be removable for servicing and lubricating enclosed equipment.

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3. Balustrades shall have clear glass with section joints perpendicular to deck.

4. Balustrade shall be a minimum of 1/2-inch thickness.

2.8 DECKING, SKIRTS AND LANDING PLATES:

A. Decking: Provide 12-gauge stainless steel No. 4 brushed construction unless continuously reinforced. Provide finish as indicated that meets code strength and design requirement. The back of decking shall be reinforced to resist denting and thoroughly coated with fireproof sound deadening material. All fastenings in handrail area concealed, except operating station cover.

B. Skirt panels: Provide12-gauge, stainless steel No. 4 brushed construction reinforced to resist denting and coated with a fireproof sound deadening material. Extend beyond comb plates and wrap around base of newel. Provide skirt lighting the entire length of the Moving Walk.

C. Exterior panels:

1. Material and construction to match interior panels.

2. Exposed fastenings shall match adjacent work. Provide truss clips and electrical contacts that disconnect the power for servicing purposes.

D. Landings:

1. Comb plates: Provide aluminum, other alloy or suitable material provided with non-slip surface and removable tooth section at intersection of pallets and comb plate. There shall be not less than three (3) or more than seven (7) sections per comb plate assembly. The color shall be yellow for safety demarcation. There shall be no sharp edges.

2. Landing plates: Provide aluminum with non-slip surfaces. Plates shall extend from comb plate to end of truss at one end and from comb plate to access panel other end. Plate shall extend full width of truss where it extends beyond newel. Fabricate in sections of a size and weight capable of being handled easily by one person. Company logos shall not be visible in public spaces.

2.9 SIGNALS AND CONTROL FIXTURES

A. Provide in newels with the following fixtures, as previously described, with a flush-mounted faceplate that matches the decking finish. Function and operating positions of switches and buttons shall be identified with engraved characters that are visible from the standing position.

1. A spring return key operated the start switch.

2. Emergency stop devices.

3. A key directional control switch.

4. A key speed selecting switch if applicable.

B. Provide "Hold Handrail" signs at each landing on both sides per code.

2.10 MONITORING STATION

A. Provide Moving Walk manufacturers standard monitoring systems located as directed by Purchaser.