671-24-200-VA-SA-Elevator_Assessment-Addendum 01.pdf

Addendum Project Survey and Modernization of

Passenger and Service Elevators 7400 Merton Minter Blvd.

San Antonio, TX 78229

Project No. 671-24-200 WestEast Design Group, LLC: 23170

TO Michael Agwu

ADD No. 001 Issued Date 05/22/2024 Issued For Bidding

VIA EMAIL

FROM Christopher Kim, AIA West East Design Group, LLC 200 E. Grayson Street, Suite 207 San Antonio, TX 78215 210.530.0755

This addendum shall be considered part of the Contract Documents and is issued to change or delete from or otherwise explain the drawings and specifications. Where provisions of this addendum differ from those of the original contract documents, this addendum shall have precedence over the original drawings and specifications and shall govern.

Bidders are hereby notified that they shall incorporate this addendum in their bids, and it shall be construed that the Contractor's Bid shall reflect with full knowledge, all items, changes and modifications to the contract documents herein specified. Bidders shall acknowledge receipt of this addendum in the space provided on the contractor’s bid form.

Description

> Specifications 14 21 10 Traction Elevator removed sprinkler reference and revised conduit text, Addendum 01 Noted.

End of Addendum

05/22/2024

Survey and Modernization of 671-24-200 Passenger and Service Elevators VAMC San Antonio, TX

WestEast Design Group, LLC Traction Elevator Modernization Construction Documents, Addendum 01 14 21 10-1

SECTION 14 21 10

TRACTION ELEVATOR – MODERNIZATION

09-01-23

PART 1 - GENERAL

1.1 DESCRIPTION

A. This section specifies the engineering, furnishing and modernization of the complete traction elevator system as described herein and as indicated on the Contract drawings.

B. Items listed in the singular apply to each elevator in this specification except where noted.

C. Passenger Elevator P1-P4, must be overhead traction, microprocessor control system, AC VVVF motor control, power operated car and hoistway doors. Elevator must be Class “A” loading rated as a minimum.

D. Service/Passenger Elevator S5,S6,S10, & Kerrville E3-E4 must be overhead traction, microprocessor control system, AC VVVF motor control, power operated car and hoistway doors. Elevator must be Class “C3” loading rated as a minimum.

ELEVATOR SCHEDULE

Elevator Number P1

Overall Platform Size Field Verify

Clear Inside Platform Field Verify

Rated Load – kg (lb) 4,000 lbs.

Contract Speed - m/s (fpm) 500 fpm

Total Travel – m (ft) Field Verify

Floors Served 8

Number of Openings 8

Entrance Type & Size 42” x 84” Center Opening

Type of Roping 2:1

WestEast Design Group, LLC Traction Elevator Modernization Construction Documents, Addendum 01 14 21 10-2

ELEVATOR SCHEDULE

Elevator Number P2

Overall Platform Size Field Verify

Clear Inside Platform Field Verify

Rated Load – kg (lb) 4,000 lbs.

Contract Speed - m/s (fpm) 500 fpm

Total Travel – m (ft) Field Verify

Floors Served 8

Number of Openings 8

Entrance Type & Size 42” x 84” Center Opening

Type of Roping 2:1

ELEVATOR SCHEDULE

Elevator Number P3

Overall Platform Size Field Verify

Clear Inside Platform Field Verify

Rated Load – kg (lb) 4,000 lbs.

Contract Speed - m/s (fpm) 500 fpm

Total Travel – m (ft) Field Verify

Floors Served 8

Number of Openings 8

Entrance Type & Size 42” x 84” Center Opening

WestEast Design Group, LLC Traction Elevator Modernization Construction Documents, Addendum 01 14 21 10-3

ELEVATOR SCHEDULE

Elevator Number P4

Overall Platform Size Field Verify

Clear Inside Platform Field Verify

Rated Load – kg (lb) 4,000 lbs.

Contract Speed - m/s (fpm) 500 fpm

Total Travel – m (ft) Field Verify

Floors Served 8

Number of Openings 8

Entrance Type & Size 42” x 84” Center Opening

Type of Roping 2:1

ELEVATOR SCHEDULE

Elevator Number S5

Overall Platform Size Field Verify

Clear Inside Platform Field Verify

Rated Load – kg (lb) 5,000 lbs.

Contract Speed - m/s (fpm) 500 fpm

Total Travel – m (ft) Field Verify

Floors Served 8

Number of Openings 8

Entrance Type & Size 48” x 84” Center Opening

WestEast Design Group, LLC Traction Elevator Modernization Construction Documents, Addendum 01 14 21 10-4

ELEVATOR SCHEDULE

Elevator Number S6

Overall Platform Size Field Verify

Clear Inside Platform Field Verify

Rated Load – kg (lb) 5,000 lbs.

Contract Speed - m/s (fpm) 500 fpm

Total Travel – m (ft) Field Verify

Floors Served 8

Number of Openings 8

Entrance Type & Size 48” x 84” Center Opening

Type of Roping 2:1

ELEVATOR SCHEDULE

Elevator Number S10

Overall Platform Size Field Verify

Clear Inside Platform Field Verify

Rated Load – kg (lb) 5,000 lbs.

Contract Speed - m/s (fpm) 500 fpm

Total Travel – m (ft) Field Verify

Floors Served 8

Number of Openings 10

Entrance Type & Size 48” x 84” Center Opening

WestEast Design Group, LLC Traction Elevator Modernization Construction Documents, Addendum 01 14 21 10-5

ELEVATOR SCHEDULE

Elevator Number Kerrville E3

Overall Platform Size Field Verify

Clear Inside Platform Field Verify

Rated Load – kg (lb) 5,000 lbs.

Contract Speed - m/s (fpm) 200 fpm

Total Travel – m (ft) Field Verify

Floors Served 8

Number of Openings 8

Entrance Type & Size 48” x 84” Center Opening

Type of Roping 1:1

ELEVATOR SCHEDULE

Elevator Number Kerrville E4

Overall Platform Size Field Verify

Clear Inside Platform Field Verify

Rated Load – kg (lb) 3,000 lbs.

Contract Speed - m/s (fpm) 200 fpm

Total Travel – m (ft) Field Verify

Floors Served 3

Number of Openings 3

Entrance Type & Size 48” x 84” Center Opening

Type of Roping 1:1

1.2 RELATED WORK

A. Section 01 33 00 SUBMITTAL PROCEDURES (FAR 52.236-21) and, SPECIAL NOTES (VAAR 852.236-91), in GENERAL CONDITIONS.

B. Section 07 84 00, FIRESTOPPING: Sealing around penetrations to maintain the integrity of fire-rated construction.

WestEast Design Group, LLC Traction Elevator Modernization Construction Documents, Addendum 01 14 21 10-6

E. Section 26 05 11, REQUIREMENTS FOR ELECTRICAL INSTALLATIONS: General electrical requirements that are common to more than one section.

F. Section 26 05 19, LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES (600 VOLTS AND BELOW): Low Voltage power and lighting wiring.

1.3 QUALIFICATIONS

A. Approval by the Contracting Officer is required for products and services of proposed manufacturers, suppliers, installers and must be contingent upon submission of certificates by the Contractor stating the following:

1. Elevator contractor is currently and regularly engaged in the installation of elevator equipment as one of his principal products.

2. Elevator contractor must have five (5) years of successful experience, trained supervisory personnel and facilities to install elevator equipment specified herein.

3. Elevator Mechanic (Installer) must have passed a Mechanic Examination approved by the U.S. Department of Labor and have technical qualifications of at least five years of experience in the elevator industry or 10,000 hours of field experience working in the elevator industry with technical update training. Apprentices must be actively pursuing Certified Elevator Mechanic status.

Certification must be submitted for all workers employed in this capacity.

B. Welding at the project site must be performed by certified welders who have previously qualified by test as prescribed in American Welding Society Publications AWS Dl.1 to perform the type of work required.

Certificates must be submitted for all workers employed in this capacity. A welding or hot work permit is required for each day and must be obtained from the VAMC safety department. Request permit one day in advance.

C. Electrical work must be performed by a Licensed Master Electrician and Licensed Journeymen Electricians as requirements by NEC. Certificates must be submitted for all workers employed in this capacity.

D. Approval will not be given to elevator contractors and manufacturers who have established on prior projects, either government, municipal, or commercial, a record of unsatisfactory elevator installations, have failed to complete awarded contracts within the contract period and do not have the requisite record of satisfactorily performing elevator installations of similar type and magnitude.

E. Approval of Elevator Contractor’s equipment must be contingent on the equipment manufacturer providing factory training, engineering and technical support, including all manuals, wiring diagrams and tools necessary for adjusting, maintenance, repair and testing of equipment to the VA for use by the VA’s designated Elevator Maintenance Service Provider.

F. Identifying an elevator maintenance service provider that must render services within one hour of receipt of notification, together with certification that the quantity and quality of replacement parts stock is enough to warranty continued operation of the elevator installation.

G. Equipment within a group of traction elevators must be the product of the same manufacturer.

WestEast Design Group, LLC Traction Elevator Modernization Construction Documents, Addendum 01 14 21 10-7

H. The Contractor must provide and install safety devices that have been subjected to tests witnessed and certified by an independent professional testing laboratory that is not a subsidiary of the firm that manufactures supplies or installs the equipment.

1.4 APPLICABLE PUBLICATIONS

A. The publications listed below form a part of this specification.

Elevator installation must meet the requirements of the latest editions published and adopted by the United States Department of Veterans Affairs on the date contract is signed.

B. Federal Specifications (Fed. Spec.):

J-C-30B......... Cable and Wire, Electrical (Power, Fixed Installation)

J-C-580......... Cord, Flexible and Wire, Fixture W-S-610......... Splice Connectors

W-C-596F -...... Connector, Plug, Electrical; Connector, Receptacle, Electrical

W-F-406E -...... Fittings for Cable, Power, Electrical and Conduit, Metal, Flexible

HH-I-558C....... Insulation, Blankets, Thermal (Mineral Fiber, Industrial Type)

W-F-408E........ Fittings for Conduit, Metal, Rigid (Thick-Wall and Thin-wall Type)

RR-W-410........ Wire Rope and Strand TT-E-489J....... Enamel, Alkyd, Gloss, Low VOC Content

QQ-S-766........ Steel, Stainless and Heat Resisting, Alloys, Plate, Sheet and Strip

C. American Society of Mechanical Engineers (ASME):

A17.1........... Safety Code for Elevators and Escalators

A17.2........... Inspectors Manual for Electric Elevators and Escalators

D. National Fire Protection Association:

NFPA 13......... Standard for the Installation of Sprinkler Systems

[ADDENDUM 01]

NFPA 70......... National Electrical Code (NEC) NFPA 72......... National Fire Alarm and Signaling Code

NFPA 10......... 1Life Safety Code

NFPA 252........ Fire Test of Door Assemblies

E. International Building Code (IBC).

F. American Society for Testing and Materials (ASTM):

A1008/A1008M-09. Steel, Sheet, Cold Rolled, Carbon, Structural, High- Strength Low-Alloy and High Strength Low-Alloy with Improved Formability

E1042-02........ Acoustically Absorptive Materials Applied by Trowel or Spray

G. Manufacturer's Standardization Society of the Valve and Fittings Industry (MSS):

SP-58........... Pipe Hangers and Supports

H. Society of Automotive Engineers, Inc. (SAE):

WestEast Design Group, LLC Traction Elevator Modernization Construction Documents, Addendum 01 14 21 10-8

J517-91......... Hydraulic Hose, Standard

I. Gauges:

Sheet and Plate: U.S. Standard (USS)

Wire: American Wire Gauge (AWG) J. American Welding Society (AWS):

D1.1............ Structured Welding Code Steel K. National Electrical Manufacturers Association (NEMA):

LD-3............ High-Pressure Decorative Laminates

L. Underwriter's Laboratories (UL):

486A............ Safety Wire Connectors for Copper Conductors

797............. Safety Electrical Metallic Tubing

M. Institute of Electrical and Electronic Engineers (IEEE)

N. Regulatory Standards:

H-18-13......... VA Barrier Free Design Handbook

H-18-8.......... VA Seismic Design Manual

Uniform Federal Accessibility Standards O. National Elevator Industry, Inc.

NEII-1.......... Building Transportation Standards and Guidelines

1.5 SUBMITTALS

A. Submit in accordance with Specification Section 01 33 00 SUBMITTAL

PROCEDURES.

B. Before execution of work, furnish information to evidence full compliance with contract requirements for proposed items. Such information must include, as required: Manufacturer's Name, Trade Names, Model or Catalog Number, Nameplate Data (size, capacity and rating) and corresponding specification reference (Federal or project specification number and paragraph). All submitted drawings and related elevator material must be forwarded to the Contracting Officer.

C. Shop Drawings:

1. Complete scaled and dimensioned layout in plan and section view showing the arrangement of equipment and all details of each elevator unit specified including:

a. Hoisting machines, controllers, power conversion devices, governors and all other components located in machine room.

b. Car, counterweight, sheaves, supporting beams, guide rails, brackets, buffers and size of car platform, car frame members and other components located in hoistway.

c. Rail bracket spacing and maximum vertical forces on guide rails in accordance with H 18-8 for Seismic Risk Zone 2 or greater.

d. Reaction at points of support and buffer impact loads.

e. Weight of principal parts.

f. Top and bottom clearances and over travel of car and counterweight.

WestEast Design Group, LLC Traction Elevator Modernization Construction Documents, Addendum 01 14 21 10-9

g. Location of main line switch/shunt trip circuit breaker, switchboard panel, light switch and feeder extension points in the machine room.

2. Drawings of hoistway entrances and doors showing details of construction and method of fastening to the structural members of the building.

a. If drywall construction is used to enclose hoistway, submit details of interface fastenings between entrance frames and drywall.

b. Sill details including sill support.

D. Samples:

1. One each of stainless steel, 76 mm x 127 mm (3 in. x 5 in.).

2. One each of baked enamel, 76 mm x 127 mm (3 in. x 5 in.).

3. One each of color floor covering.

4. One each of protection pads, 76 mm x 127 mm (3 in. x 5 in.) if used.

5. One each car and hoistway Braille plate sample.

6. One each car and hall button sample.

7. One each car and hall lantern/position indicator sample.

8. One each wall and ceiling material finish sample.

9. One each car lighting sample.

E. Name of manufacturer, type or style designation and applicable data of the following equipment must be shown on the elevator layouts:

1. Hoisting Machine.

2. Hoisting Machine Motor, HP and RPM ratings, Voltage, Starting and Full Load Ampere and Number of Phases.

3. Controller.

4. Starters and Overload Current Protection Devices.

5. Car and Counterweight Safety Device; Type “B” safeties, Governor and Rope Gripper.

6. Electric Door Operator; HP, RPM, Voltage and Ampere rating of motor.

7. Hoistway Door Interlocks.

8. Car and Counterweight Buffers; maximum and minimum rated loads, maximum rated striking speed and stroke.

9. Cab Ventilation Unit; HP rating and CFM rating.

10. Hoist and Compensation Ropes, breaking strength, allowable working load and actual working load.

F. Complete construction drawings of elevator car enclosure showing dimensioned details, fastenings to platform, car lighting, ventilation, ceiling framing, top exits and location of car equipment.

G. Complete dimensioned detail of vibration isolating foundations for traction hoisting machines.

WestEast Design Group, LLC Traction Elevator Modernization Construction Documents, Addendum 01 14 21 10-10

H. Dimensioned drawings showing details of:

1. All signal and operating fixtures.

2. Car and counterweight roller guides.

3. Hoistway door tracks, hangers and sills.

4. Door operator, infrared curtain units.

I. Cut sheets and drawings showing details of controllers and supervisory panels.

J. Furnish certificates as required under: Paragraph "QUALIFICATIONS".

1.6 WIRING DIAGRAMS

A. Provide three complete sets of paper and one electronic set field wiring and straight-line wiring diagrams showing all electrical circuits in the hoistway, machine room and fixtures. Install one set coated with an approved plastic sealer and mounted in the elevator machine room as directed by the COR.

B. In the event field modifications are necessary during installation, diagrams must be revised to include all corrections made prior to and during the final inspection. Corrected diagrams must be delivered to the Resident Engineer/Contracting Officer within thirty (30) days of final acceptance.

C. Provide the following information relating to the specific type of microprocessor controls installed:

1. Owner's information manual, containing job specific data on major components, maintenance and adjustment.

2. System logic description.

3. Complete wiring diagrams needed for field troubleshooting, adjustment, repair and replacement of components. Diagrams must be base diagrams, containing all changes and additions made to the equipment during the design and construction period.

4. Changes made during the Construction and Warranty periods must be noted on the drawings in adequate time to have the finalized drawings reproduced for mounting in the machine room no later than six months prior to the expiration of the warranty period.

1.7 PERFORMANCE STANDARDS

A. The elevators must meet the highest standards of the industry and specifically the following:

1. Contract speed is high speed in either direction of travel with rated capacity load in the elevator. Speed variation under all load conditions, regardless of direction of travel, must not vary more than three (3) percent.

2. The controlled rate of change of acceleration and retardation of the car must not exceed 0.1G per ft/s/s and the maximum acceleration and retardation must not exceed 0.2G per ft/s/s.

3. Starting, stopping and leveling must be smooth and comfortable without appreciable steps of acceleration and deceleration.

B. Passenger/Service door operator must open the car door and hoistway door at 76.2 cm (2.5-ft) per second and close at 30.5 cm (1 ft) per

WestEast Design Group, LLC Traction Elevator Modernization Construction Documents, Addendum 01 14 21 10-11 second. Freight door operators must open and close at 30.5 cm (1 ft) per second.

C. Floor level stopping accuracy must be within 3 mm (.125 in.) above or below the floor, regardless of load condition.

D. Noise and Vibration Isolation: All elevator equipment including their supports and fastenings to the building, must be mechanically and electrically isolated from the building structure to minimize objectionable noise and vibration transmission to car, building structure, or adjacent occupied areas of building.

E. Sound Isolation: Noise level relating to elevator equipment operation in machine room must not exceed 80 decibels. All decibel readings must be taken 91.4 cm (3 ft) off the floor and 91.4 cm (3 ft) from equipment.

F. Airborne Noise: Measured noise level of elevator equipment during operation must not exceed 50 decibels in elevator lobbies and 60 decibels inside car under any condition including door operation and car ventilation exhaust blower on its highest speed.

1.8 WARRANTY

A. Submit all labor and materials furnished regarding elevator system and installation to terms of "Warranty of Construction" articles of FAR clause 52.246-21. The One-Year Warranty and Guarantee Period of Service must commence and run concurrent after final inspection, completion of performance test and upon acceptance of each elevator.

B. During warranty period if a device is not functioning properly in accordance with specification requirements, more maintenance than the contract requires keeping device operational, device must be removed and a new device meeting all requirements must be installed as part of work until satisfactory operation of installation is obtained. Period of warranty must start anew for such parts from date of completion of each new installation performed, in accordance with foregoing requirements.

1.9 POWER SUPPLY

A. Power supply requirements in each machine room, see Specification 26 05 19, Electrical specifications and Electrical drawings.

B. Main Line Fused Disconnect Switch/Shunt Trip Circuit Breaker for each controller must be located inside the machine room at the strike side of the machine room door and lockable in the “Off” position.

C. Provide Surge Suppressors to protect the elevator equipment.

1.10 EMERGENCY POWER SUPPLY

A. Emergency power supply, its starting means, transfer switch for transfer of elevator supply from normal to emergency power, two pair of conductors in a conduit from an auxiliary contact on the transfer switch (open or closed contacts as required by Elevator Controller Manufacturer) to terminals in the group elevator controller and other related work must be provided by the Electrical Contractor.

B. Upon loss of normal power supply there must be a delay before transferring to emergency power of 10 seconds minimum to 45 seconds maximum, the delay must be accomplished through an adjustable timing device.

WestEast Design Group, LLC Traction Elevator Modernization Construction Documents, Addendum 01 14 21 10-12

C. Prior to the return of normal power an adjustable timed circuit must be activated that will cause all cars to remain at a floor if already there or stop and remain at the next floor if in flight. Actual transfer of power from emergency power to normal building power must take place after all cars are stopped at a floor with their doors open.

D. Car lighting circuits must be connected to the emergency power panel.

1.11 ELEVATOR MACHINE ROOM AND MACHINE SPACE

A. Provide a machine room that meets the requirements of ASME A17.1, NEC, NFPA and IBC. The elevator drive machine and elevator controller must be in the same code approved machine room.

B. Provide stairs and landing for access to the machine room. The landing must be large enough to accommodate full opening of the door plus 61 cm (24 in.).

C. Locate the shunt trip breaker/main line disconnect and machine room light switch on the lock side of the door inside the machine room.

D. Locate sprinkler pipes to provide 213.3 cm (7 ft) head clearance. Do not locate sprinkler heads, heat detectors and smoke detectors directly over elevator equipment. [ADDENDUM 01]

1.12 HOISTWAY LIGHTING

A. Provide lighting throughout the entire hoistway with 3-way switches at the top and bottom of the hoistway accessible from elevator hoistway entrance prior to entering the pit or stepping onto the car top.

B. Lighting must illuminate top of elevator cab when it is at the top floor and the pit when at the bottom floor.

1.13 TOOL CABINET

A. Provide a metal parts/tool cabinet, having two shelves and hinged doors. Cabinet must be 1219 mm (48 in.) high, 762 mm (30 in.) wide and

457 mm (18 in.) deep.

1.14 WORK SCHEDULE

A. Before starting work submit a detailed work schedule for approval and arrange with COR sequence of procedure, means of access to premises, space for storage, use of approaches, corridors, stairways, elevators, location of temporary partitions, disposal of trash and recyclable materials. The COR must be notified twenty (20) calendar days, in writing, in advance of starting work on elevators. No work may begin on any elevator until all materials for that elevator have been delivered to the site and verified by the Contracting Officer and/or Contracting Officer’s Representative. The phasing of work on the elevators must be coordinated with the Contracting Officer and/or the Contracting Officer’s Representative.

1.15 SAFETY PRECAUTIONS

A. Building will be occupied during execution of work. Work must be conducted in a manner to afford maximum protection of patients, public, employees, building and facilities to prevent unreasonable delay or interference with normal functioning of hospital activities.

B. Where an adjacent elevator is in operation, isolate the elevators from each other with suitable barriers between them, extending from the pit

WestEast Design Group, LLC Traction Elevator Modernization Construction Documents, Addendum 01 14 21 10-13 floor to bottom of the slab at top of hoistway, while work is in progress. Remove partition when work is completed.

C. Provide fire extinguishers that are always readily available.

D. It must be the obligation of the contractor to maintain a free and clear passageway in each elevator lobby. Parts and tools must be kept within the confines of entrance partitions. Trash and debris must be removed daily.

E. Provide fire rated partition during the modernization of elevators.

Barrier must extend to the full height of the elevator entrance and must be dust and vapor proof with dust absorbing mats at access points.

1.16 REMOVAL OF MATERIALS AND EQUIPMENT

A. Material and equipment that are not specified to be reused or retained under contract must be removed daily from the site at the expense of the contractor. The contractor must receive title to all material and equipment not specified to be reused as of date of withdrawal from service. The government does not warranty condition of the material to which contractor must obtain title, nor must the government be liable for damage before or after title passes to contractor.

PART 2 – PRODUCTS

2.1 MATERIALS

A. Where stainless steel is specified, it must be corrosion resisting steel complying with Fed. Spec. QQ-S-766, Class 302 or 304, Condition A with Number 4 finish on exposed surfaces. Stainless steel must have the grain of belting in the direction of the longest dimension and surfaces must be smooth and without waves. During installation stainless steel surfaces must be protected with suitable material.

B. Where cold rolled steel is specified, it must be low-carbon steel rolled to stretcher level standard flatness, complying with ASTM A109.

2.2 MANUFACTURED PRODUCTS

A. Materials, devices and equipment furnished must be of current production by manufacturers regularly engaged in the manufacture of such items. The elevator equipment, including controllers, door operators and supervisory system must be the product of manufacturers of established reputation, provided such items are capably engineered and produced under coordinated specifications to ensure compatibility with the total operating system.

B. Manufacturers of equipment assemblies which include components made by others must assume complete responsibility for the final assembled unit. Components must be compatible with each other and with the total assembly for the intended service.

C. Mixing of manufactures related to a single system or group of components must be identified in the submittals.

D. Key operated switches provided for this elevator modernization, must be provide four (4) keys for each individual switch or lock. Provide different key tumblers for different switch and lock functions. Each key must have a tag bearing a stamped or etched legend identifying its purpose.

WestEast Design Group, LLC Traction Elevator Modernization Construction Documents, Addendum 01 14 21 10-14

2.3 CONDUIT AND WIREWAY [ADDENDUM 01]

A. Remove Reuse existing and provide new conduit, where required and wireway. Install electrical conductors, except traveling cable connected to the elevator, in rigid zinc-coated steel or aluminum conduit, electrical metallic tubing or metal wireways. Rigid conduit smaller than 19 mm (.75 in.) or electrical metallic tubing smaller than

12.5 mm (.50 in,) electrical trade size must not be used. All raceways completely embedded in concrete slabs, walls, or floor fill must be rigid steel conduit. Wireway (duct) must be installed in the hoistway and to the controller and between similar apparatus in the elevator machine room. Fully protect self-supporting connections, where approved, from abrasion or other mechanical injury. Flexible metal conduit not less than 9.375 mm(.375 in.) electrical trade size may be used, not exceeding 457 mm (18 in.) in length unsupported, for short connections between risers and limit switches, interlocks and for other applications permitted by NEC.

B. All conduit terminating in steel cabinets, junction boxes, wireways, switch boxes, outlet boxes and similar locations must have approved insulation bushings. Install a steel lock nut under the bushings if they are constructed completely of insulating materials. Protect the conductors at ends of conduits not terminating in steel cabinets or boxes by terminal fittings having an insulated opening for the conductors.

C. Rigid conduit and EMT fittings using set screws or indentations as a means of attachment must not be used.

D. Connect motor or other items subject to movement, vibration, or removal to the conduit or EMT systems with flexible, steel conduits.

2.4 CONDUCTORS [ADDENDUM 01]

A. Remove existing and provide new. Conductors must be stranded or solid coated annealed copper in accordance with Federal Specification J-C-30B for Type RHW or THW. Where 16 and 18 AWG are permitted by NEC, single conductors, or multiple conductor cables in accordance with Federal Specification J-C-580 for Type TF may be used provided the insulation of single conductor cable and outer jacket of multiple conductor cable is flame retardant and moisture resistant. Multiple conductor cable must have color or number coding for each conductor. Conductors for control boards must be in accordance with NEC. Joints or splices are not permitted in wiring except at outlets. Tap connectors may be used in wireways provided they meet all UL requirements.

B. Provide Reuse existing conduit and all new conduit and wiring between machine room, hoistway and fixtures.

C. All wiring must test free from short circuits or ground faults.

Insulation resistance between individual external conductors and between conductors and ground must be a minimum of one megohm.

D. Where size of conductor is not given, voltage and amperes must not exceed limits set by NEC.

E. Provide equipment grounding. Ground the conduits, supports, controller enclosure, motor, platform and car frame and all other non-current conducting metal enclosures for electrical equipment in accordance with NEC. The ground wires must be copper, green insulated and sized as

WestEast Design Group, LLC Traction Elevator Modernization Construction Documents, Addendum 01 14 21 10-15 required by NEC. Bond the grounding wires to all junction boxes, cabinets and wire raceways.

F. Terminal connections for all conductors used for external wiring between various items of elevator equipment must be solderless pressure wire connectors in accordance with Federal Specification W-S-610. The Elevator Contractor may, at his option, make these terminal connections on #10 gauge or smaller conductors with approved terminal eyelets set on the conductor with a special setting tool, or with an approved pressure type terminal block. Terminal blocks using pierce-through serrated washers are not acceptable.

2.5 TRAVELING CABLES

A. Remove existing and provide new flexible traveling cables conforming to the requirements of NEC. Traveling cables must run from the junction box on the car directly to the controller in the machine room. Junction boxes on the car must be equipped with terminal blocks. Terminal blocks having pressure wire connectors of the clamp type that meet UL 486A requirements for stranded wire may be used in lieu of terminal eyelet connections. Terminal blocks must have permanent indelible identifying numbers for each connection. Cables must be securely anchored to avoid strain on individual terminal connections. Flame and moisture resistant outer covering must remain intact between junction boxes. Abrupt bending, twisting and distortion of the cables must not be permitted.

B. Provide spare conductors equal to 10 percent of the total number of conductors furnished, but not less than 5 spare conductors in each traveling cable.

C. Provide shielded wires for the auto dial telephone system within the traveling cable, five (5) pair shielded wires for card reader, Ethernet cables required for Wi-FI and other systems, two (2) pair 14-gauge wires for 110 Volt power supply and wire for video display monitor if specified.

D. Traveling cables that contact the hoistway or elevator due to sway or change in position, provide shields or pads to the elevator and hoistway to prevent damage to the traveling cables.

E. Hardware cloth may be installed from the hoistway suspension point to the elevator pit to prevent traveling cables from rubbing or chafing and securely fastened and tensioned to prevent buckling. Hardware cloth is not required when traveling cable is hung against a flat wall.

2.6 CONTROLLER AND SUPERVISORY PANEL

A. Remove existing and provide new UL/CSA Labeled Controller. Mount all assemblies, power supplies, chassis switches and relays on a steel frame in a NEMA Type 1 General Purpose Enclosure. Cabinet must be securely attached to the building structure.

B. Properly identify each device on all panels by name, letter, or standard symbol which must be neatly stencil painted or decaled in an indelible and legible manner. Identification markings must be coordinated with identical markings used on wiring diagrams. The ampere rating must be marked adjacent to all fuse holders. All spare conductors to controller and supervisory panel must be neatly formed, laced and identified.

C. Controller must be provided with wiring and components for additional future travel if required.

WestEast Design Group, LLC Traction Elevator Modernization Construction Documents, Addendum 01 14 21 10-16

2.7 MICROPROCESSOR CONTROL SYSTEM

A. Provide a new microprocessor control system with absolute position/speed feedback to control dispatching, signal functions, door operation and VVVF Drive for hoist motor control. Complete details of the components and printed circuit boards, together with a complete operational description, must be submitted for approval. Add Regenerative Drive when economically advantages to the VA.

B. Controller manufacturer must provide factory training, engineering and technical support, including all manuals, wiring diagrams and tools necessary for adjusting, maintenance, repair and testing of equipment to the VA for use by the VA’s designated Elevator Maintenance Service Provider.

C. Microprocessor dispatching system must evaluate building traffic demand including number of elevators in service, hall calls, car calls, elevator position, direction of travel, load in elevator, door status and select an elevator to answer hall calls for least possible passenger wait times.

D. Provide means for weighing carload for each elevator. When load in a car reaches an adjustable predetermined level of the rated capacity, that car must bypass registered landing calls until the load in the car drops below the predetermined level. Calls bypassed in this manner must remain registered for the next car. The initial adjustment of the load weighting bypass setting must be 60 to 100 percent.

E. If weight in the car is not commensurate with the number of registered car calls, cancel car calls. Systems that employ either load weighing or door protective device for activation of this feature are acceptable.

2.8 MACHINE ROOM MONITOR

A. Provide a monitor in each machine room, separate monitors for each passenger elevator group and each service elevator group. Provide a separate keyboard for each monitor.

B. The monitor must contain indicators to provide the following information:

1. The floor where each elevator is currently located.

2. The direction that each elevator is currently traveling or is scheduled to travel.

3. The location and direction of currently registered hall calls.

4. Elevators that are currently out of service.

5. Elevators that are currently bypassing hall calls.

6. Elevators that are currently engaged in passenger transfers.

7. Operations program under which entire group is currently operating.

8. Zone divisions of the entire group.

9. Door positions.

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10. Status indication for elevators on independent service, car top inspection, fire service, earthquake protection and activated stop switch and alarm bell.

C. The maintenance terminal must be suitable for all troubleshooting procedures related to the specific type of microprocessor installed on this project.

2.9 EMERGENCY POWER OPERATION

A. The control system for Elevator(s) must provide for the operation of at least one car per elevator group on emergency power upon failure of the normal power supply.

B. Auxiliary equipment on elevator controllers, wiring between associated elevator controllers and wiring between elevator controllers and remote selector panel as required to permit the elevators to operate as detailed, must be provided by the Elevator Contractor.

C. Upon loss of normal power supply there must be a delay before transferring to emergency power of 10 seconds minimum to 45 seconds maximum, the delay must be accomplished through an adjustable timing device. After adjusting delay, the associated elevators must function the as on normal power or as follows:

1. Selector switch, Automatic position:

a. Not more than one elevator at a time in each group must be automatically selected and returned to the main floor, at contract speed, cycle its car and hoistway doors and shut down, with "Door Open" button remaining operable.

b. As each elevator reaches the designated floor and shuts down, another elevator must start and return to the designated floor.

c. Elevators that have been manually removed from automatic service and are on independent service, fire service or medical emergency must receive an automatic return signal. Elevators on inspection service or out of service must not receive a signal.

d. When an elevator is given a signal to return, and it is unable to start its movement to the designated floor within 30 seconds it must be by-passed. When an elevator is by-passed, another elevator must start and return.

e. This process must continue until all elevators have returned to the designated floor and shut down.

f. Any elevator or elevators by-passed on initial return signal must be signaled again.

g. When all cars in group have returned to designated floor, one elevator in each group must be designated for automatic operation. Individual cars in each group must restart at 5 second intervals.

h. Elevator (s) keyed on to medical emergency service in the car prior to transfer to emergency power operation, medical emergency service must be retained. This elevator must be the first automatically selected elevator to operate on emergency power operation and complete its selected call demand. The elevator will return to the designated floor after the key switch is reset to normal position.

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2. Selector switch, Manual operation:

a. Selector switch must be mechanically and electrically interlocked to prevent the selection of more than one elevator from operating on emergency power.

b. The selector switch must have positions marked with the number of each elevator controlled. It must also have a position marked "Automatic". When the selector switch is set to the automatic position, the medical emergency service car must operate on emergency power operation, or if none, the last car arriving at the designated floor must operate on emergency power operation.

c. Change in selection of elevators must be by means of the selection switch and must occur only when the previous selected elevator is stopped at the designated floor.

d. The selector switch must be locked out of operation when the system is in the normal mode of operation.

e. Locate the selector switch above the hall push button at the designated level. The key switch must be a tumbler type lock furnished with four keys. The enclosure faceplate must be identified "Emergency Power Control" with 12.5 mm (.50 in.)

engraved letters filled with black paint.

D. Prior to the return of normal power an adjustable timer circuit must activate that will cause all cars to remain at a floor if already there or stop and remain at the next floor if in flight. Actual transfer of power from emergency power to normal building power must take place after all cars are stopped at a floor with their doors open.

2.10 FIREFIGHTER’S SERVICE

A. Provide Firefighter’s Service. Key switches must be KEO-K1.

1. Main Floor:

2. Alt. Floor:

3. Verify main and alternate floors with RE/CO or authorized representative.

2.11 INDEPENDENT SERVICE

A. Provide an INDEPENDENT SERVICE key switch on the face of the main car operating panel that must have its positions marked "ON" and "OFF".

When the switch is in the "ON" position, the car must respond only to calls registered on its car dispatch buttons and must bypass all calls registered on landing push buttons. The car must start when a car call is registered, car call button or door close button is pressed, car and hoistway doors are closed and interlock circuits are made. When switch is returned to "OFF" position, normal service must be resumed.

2.12 MEDICAL EMERGENCY SERVICE – PATIENT CARE FACILITIES ONLY

A. Provisions must be made for calling elevator(s) to floors served by the elevator on an emergency basis, operating independently from the dispatch signals and landing call signals.

B. Install key switches in the floor landing push button fixtures above the push buttons.

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C. Provide a call registered light indicator adjacent to key switch. The key switch at the landings and in the car, must only be operable by authorized personnel with a key.

D. When a key switch is activated at any floor, the call register light indicator must illuminate at the call floor and inside the elevator.

The elevator control system must instantly select an elevator to respond to the medical emergency call. Immediately upon selection, all car calls must be cancelled. If car is traveling away from the medical emergency call, it must slow down and stop at the nearest floor, maintain closed doors, reverse direction and proceed nonstop to the medical emergency call floor. If the car is traveling toward the medical emergency call floor, it must proceed to that floor nonstop. If at the time of selection, it is slowing down for a stop, the car must stop, maintain doors closed and start immediately toward the medical emergency floor.

E. Arriving at the medical emergency floor, the car must remain with doors open for 60 seconds. After this interval has expired and the car has not been placed on medical emergency operation inside the car, the car must automatically return to normal service.

F. Provide an LED illuminated indicator light next to the Medical Emergency key switch the same size as the Fire Service indicator.

1. Locate a “Medical Emergency” key switch above call buttons in the main car operating panel for selecting medical emergency service.

Activation of the key switch will allow the car to accept a car call for any floor, close doors and proceed nonstop to the floor desired.

2. After medical emergency call has been completed the elevator must return to normal operation after the key is removed.

G. In the center of the rear cab panel provide a back lighted "MEDICAL EMERGENCY" LED illuminated display that must flash on and off continuously when the car is assigned to this operation and until it is restored to normal service. "MEDICAL EMERGENCY" indicator must be a photographic negative type 1828 mm (72 in.) to center above the floor, 152 mm (6 in.) wide X 76 mm (3 in.) high, with 12 mm (.50 in.) high letters legible only when illuminated.

H. Elevators being operated on “Independent Service”, the medical emergency service indicator lights in the car operating panel and rear wall must be illuminated, buzzer must sound, and the “Audio Voice” system must direct the attendant to return the car to automatic operation.

I. If the car is out of service and unable to answer medical emergency calls, the call register light must not illuminate.

J. Each key switch must have its identity legible and indelible engraved in faceplates. All lettering must be 6 mm (.25 in.) high, filled with black paint.

K. When Phase I firefighter’s recall is activated, it must over-ride elevators on medical emergency service and return them to the main or alternate fire service recall floor. When the fire emergency floor has been identified the attendants may complete their medical emergency run on Phase II firefighter’s operation if life safety is not affected.

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2.13 SEISMIC REQUIREMENTS

A. Meet the requirements of VA Seismic Design Manual H-18-8.

2.14 ELEVATOR MACHINE BEAMS

A. Reuse existing beams and add blocking beams as required by machine manufacturer.

2.15 TRACTION HOIST MACHINE

A. Provide new geared/gearless traction machines with an AC motor, brake, drive sheave and deflector sheave mounted in proper alignment on an isolated bedplate.

B. Provide hoist machine mounted direct drive, digital, closed-loop velocity encoder.

C. Drive sheaves must be free from cracks, sand holes and other imperfections that would tend to damage the hoist ropes. Sheave must be turned smooth and true with rope grooves of proper design to insure maximum traction and maximum life of the hoist ropes.

D. Hoisting machine brake must be drum or disc type and must stop and hold the elevator with 125 percent of rated load.

2.16 DEFLECTOR SHEAVES

A. Provide new deflector sheave with a metal guard mounted below the sheave and a guard to prevent ropes from jumping out of grooves.

Securely fasten guard to sheave support beams.

B. Two-to-one idler sheaves on car and counterweight, if used, must be provided with metal guards that prevent foreign objects from falling between ropes and sheave grooves and to prevent ropes from jumping out of grooves.

2.17 HOIST ROPES

A. Provide elevator with the required number and size of new ropes to ensure adequate traction and required safety factor. Hoisting ropes must be pre-formed 8 x 19 or 8 x 25 traction steel, conforming to Federal Specification RR-W-410 with minimum nominal diameter of 12.5 mm (.50 in.).

B. Securely attach a corrosion resistant metal data tag to one hoisting rope fastening on top of the elevator.

2.18 HOIST ROPE COMPENSATION

A. Provide hoist rope compensation when required by elevator controller or drive machine manufacturer. Compensation must consist of a necessary number and size of encapsulated chains attached to the underside of car and counterweight frames.

1. Provide pit guide to minimize chain sway.

2. Provide take-up adjustment to compensate for hoist rope stretch.

3. Pad areas where compensation may strike car or hoistway items.

2.19 GOVERNOR ROPE

A. New Governor Rope must be 6 x 19 or 8 x 19 wire rope, preformed traction steel, uncoated, fiber core, conforming to Federal Specification RR-W-410 with minimum nominal diameter of 9 mm (.375 in,)

WestEast Design Group, LLC Traction Elevator Modernization Construction Documents, Addendum 01 14 21 10-21 having a minimum safety factor of 5. Tiller rope construction is not acceptable.

B. Under normal operation rope must run free and clear of governor jaws, rope guards and other stationary parts.

C. Securely attach governor rope tag to governor rope releasing carrier.

2.20 SPEED GOVERNOR

A. Provide new centrifugal car driven governor to operate the car safety device. Governor must be complete with weighted pit tension sheave, governor release carrier and mounting base with protected cable sleeves.

B. Provide overspeed switch and a speed reducing switches when required.

C. The governor rope clamping device must be designed to prevent appreciable damage to or deformation of the governor rope that results from the stopping action of the device operating the safety.

D. Provide metal guard over top of governor rope and sheaves.

E. Where the elevator travel does not exceed 100 feet, the weight tension sheave may be mounted on a pivoted steel arm in lieu of operating in steel guides.

2.21 CAR SAFETY DEVICE

A. Provide new “Type B Safeties” on the elevator if existing safeties are wind up type.

B. Reuse existing car safety devices. Clean, adjust, lubricate and test.

Replace worn, damaged, or missing parts as needed.

2.22 ASCENDING CAR OVERSPEED PROTECTION

A. Provide a device, direct acting on the suspension means, to prevent ascending over speed and unintended motion away from the landing when the doors are not closed and locked.

2.23 CAR AND COUNTERWEIGHT BUFFERS

A. Provide new buffers for each car and each counterweight. Securely fasten buffers and supports to the pit channels and in the alignment with striker plates on car and counterweight. Each installed buffer must have a permanently attached metal plate indicating its stroke and load rating. Buffer anchorage must not puncture pit waterproofing.

2.24 COUNTERWEIGHTS

A. The counterweight must be cleaned and all missing or damaged bolts, tie rods and frames members must be replaced.

B. Sub-weights must be added or removed from the counterweights frame to provide counterbalance equal to the weight of the complete car and 40 to 50 percent of the rated capacity, as required by the controller manufacturer. New sub-weights must be cast iron, flame cut hot rolled steel, or cast lead.

C. Reuse existing counterweight guard. If compensation chains are required remove counterweight guards.

2.25 GUIDE RAILS, SUPPORTS AND FASTENINGS

A. Retain existing car and counterweight guide rails and brackets.

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B. Thoroughly clean all guide rails of dust, grease, oil, rust and other foreign substances. File and remove all rough edges and surfaces and tighten bracket bolts and guide clips for smooth and quiet operation of car and counterweight.

2.26 NORMAL AND FINAL TERMINAL STOPPING DEVICES

A. Mount new terminal slowdown switches and direction limit switches on the elevator or in hoistway to reduce speed and bring car to an automatic stop at the terminal landings.

1. Switches must function with load up to and including 125…