Amended_SOW.docx

Solicitation R15PS00433 Glen Canyon Elevator Modernization, Amendment 0002

C.

Elevator Modernization

Glen Canyon Power Plant Middle River Division – Glen Canyon Unit – Arizona – Utah Colorado River Storage Project

Attachment J-2, Statement of Work Solicitation No: R15PS00433

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SECTION C - STATEMENT OF WORK/SPECIFICATIONS

SUBSECTION C.1 - GENERAL REQUIREMENTS

C.1.1 STATEMENT OF WORK

A. Furnish all material and perform all work required to modernize six (6) existing elevators to provide six (6) fully functional elevators complying with current elevator codes. Provide all required equipment for these elevators operating in seismic zone 2B.

B. Propose a working schedule that removes a maximum of three elevators from service at any one time. Maintain one dam elevator, one power plant elevator and one Visitor Center elevator operational at all times, with the exception of periods not more than four hours for the Visitor Center and power plant elevators, where both elevators of a pair may be out of service.

C. Replaced for every elevator:

1.1. Elevator static motor drive.

1.2. Elevator controller capable of working with the drive and associated equipment.

1.3. Wiring.

1.4. Sheaves and associated components

1.5. Hoist ropes and governor ropes

1.6. Control operating panel.

1.7. Travelling cable.

1.8. Rollers

1.9. Door operators.

1.10. Buffers

1.11. Brakes

1.12. Drive Sheaves

D. Elevator Hoists:

1. Gearless Machines

1.1. Rehabilitate DC motor

1.2. Replace motor bearings

1.3. Replace drive sheave

1.4. Replace brake mechanism

2. Geared Machines:

2.1. Replace geared machine with equal capacity and speed geared machine with AC motor suitable for VVVF operation, outfitted with new brakes assembly.

E. Design all parts of the elevator equipment to satisfactorily function under all conditions of loading and operation with specified rated load and rated speed. Build or supply all parts with standard dimensions, tolerances and clearances so that similar parts of similar machines and devices are completely interchangeable. Use mechanical fasteners suitable for the loading they could possibly experience.

F. Supply major elevator components which are products of one manufacturer of established reputation, except they may be the products, either wholly or in part, of another manufacturer of established reputation provided such items are engineered and produced under coordinated specifications. Furnish major components of a make or makes that have performed satisfactorily together under conditions of normal use in not less than two other elevator installations of equal or greater capacity and speed for a period of at least one year.

1. The term "major elevator components" as mentioned above shall mean such items as an elevator hoisting machine, motor, motor drive, controller, selector, and group supervisory control equipment.

G. Install new equipment in the footprint of existing equipment wherever possible, with the exception of necessary changes to meet new Code requirements.

H. Provide adequate work space around the elevator equipment in machine room for maintenance and repair operations, with clear passage to any access or trap doors.

I. Locate elevator controllers near to the driving machines they control, with the driving machine visible from its controller.

J. Utilizing trolley beams as the normal support of elevator equipment, such as sheaves for selector cable, is not permitted.

K. The elevator system consists of six (6) elevators:

1. Four (4) elevators independently operated.

2. Two (2) elevators pair operated.

C.1.2 RELATED WORK

A. Include in this specification the following related work which is the responsibility of the elevator contractor.

1. Elevator hoistway and their enclosures and venting, pit spaces, enclosed machine rooms, trolley beams.

2. Temporary guards at all hoistway openings as required under "Accident Prevention" clause of the General Conditions.

3. Provide smoke and heat detectors in elevator lobbies, machine room, etc., (as needed) and connect into the new elevator control system by the Elevator Contractor.

4. Provide energy efficient elevator machine room lighting and 110VGFI outlets, pit lighting and 110VGFI outlets, and hoistway lighting.

5. Provide, install and integrate into the control systems one electronic earthquake detector or solid state seismic switch per machine room.

C.1.3 GOVERNMENT-SUPPLIED LABOR AND MATERIALS

The Government will supply:

1. Cranes and crane operators to unload equipment, materials, etc in the powerplant.

2. The Government will supply new governors for five three elevators – two for the visitor center elevators and one for a power plant elevator. These governors have already been purchased and are on site. Governor nameplate data is: Payne Industries, Model 11. The Contractor shall supply new governors for three elevators – two for the dam elevators (Blocks 8 and 17, and one power plant elevator.

3. Weights for performing elevator tests. Weights and the equipment with which to move them are available at the site.

C.1.4 EXISTING EQUIPMENT

Car safety

Interlocks

C.1.5 QUALIFICATIONS

A. The bidder, or the subcontractor whom the bidder will use for performance of the elevator work, shall have had at least three years successful experience in installing and servicing the manufacturer's elevators.

B. In addition, the bidder or the subcontractor shall have comparable installations operating successfully for at least two years. To be considered comparable, prior installations shall have not less than the same number of elevators operating under the same traffic conditions

C.1.6 SHOP DRAWINGS

A. Shop drawings are defined at section C.6.2 B. Include in shop drawings the following details as applicable to the systems specified:

1. Full dimension layout in plan and elevation showing the arrangement of equipment and all pertinent details of each elevator unit specified including:

1.1. Elevator hoisting machine, controller, selector, motor generator, static motor drive unit, governor and other components located in machine room.

1.2. Car, counterweight, sheaves, supporting beams, guide rails, buffers, car and counterweight guide shoes, and other components located in hoistway.

1.3. Rail bracket spacing and maximum vertical forces on guide rails in accordance with the A17.1 Code.

1.4. Reactions at points of support.

1.5. Weights of principal parts.

1.6. Top and bottom clearance and over travel of car and counterweight.

1.7. Location of circuit breaker, switchboard panel or disconnect switch, light switch and feeder termination at controller.

1.8. Location of outlets for connection of traveling cables for car light and telephone.

1.9. Location of hoistway access switches.

2. Hoistway entrances and doors showing their method of operation, details of construction; and method of fastening to the structural members of the building.

3. Car designs specified, showing details of construction, fastenings to platform, car lighting, ventilation, location of all car equipment, handrails, and emergency exits including electric contacts and method of hinging and locking.

4. Details of all signal and operating fixtures including hoistway access switches.

5. Details of roller guide assemblies.

6. Details of sill sections and supports.

7. Details of selection, recall, and emergency operation switches including wiring diagrams.

8. Wiring diagrams of all electric and electronic equipment, see section C.6.4.1.

9. Logic diagrams of all electric and electronic equipment.

10. For all new power and control devices:

10.1. The signal names in the logic shall match the wiring names.

10.2. Physical inputs/outputs of control devices shall be clearly linked to the logical inputs/outputs.

Continue using the USBR signal name in the case where USBR signals interface with the new equipment; no new naming for these signal will be allowed.

11. Other drawings required or hereinafter specified.

C. List the name of manufacturer, type or style designation, and the additional information called for below on the shop drawings for each of the following:

1. Elevator hoisting machine.

2. Elevator hoisting machine motor including hp and rpm.

3. Elevator controller.

4. Group supervisory system controller.

5. Indicator panel.

6. Car safety including maximum rated load and speed.

7. Governor.

8. Power door operator.

9. Door interlocks and electrical contacts.

10. Buffers including stroke, certified maximum and minimum loads and maximum striking speed.

11. Car ventilation blower including c.f.m. and hp ratings.

12. Car emergency lighting.

13. Static motor drive unit.

C.1.7 MANUALS

A. Furnish three (3) sets of operating and maintenance manuals in bound form and one manual in PDF format. Include in the manuals:

1. Description of the elevator system's method of operation and control including the functions of signals, door devices and other specified features.

2. Written instructions for the adjustment and care of the equipment.

3. Replacement parts list with part numbers.

4. Type of lubricant required for each lubricated part.

5. Parts identification lists, lists of special tools, and accessories.

6. Schematics and wiring diagrams.

7. Printout of the PLC or controller logic.

8. As-built drawings, photographs, and test records or reports.

B. Identify each manual with a label that includes the subject, building name and location, government contract number and the specific elevator numbers to which the manual applies.

C. Deliver the bound manuals and the digital manual to the Contracting Officer's Representative.

C.1.8 WARRANTY

A. Warranty all materials, components, supplies and workmanship to the terms specified under "Guarantees" in the General Conditions for one year after the date the last elevator is placed in normal use by the Government.

C.1.9 MAINTENANCE

A. Furnish one year of maintenance for the elevators, performed every three months. The one-year period starts on the day of commissioning of the last elevator. Perform regular quarterly examination of the installations including the necessary adjustments, repairs, cleaning, lubrication, and supply and replacement of all parts to keep the equipment in proper operating condition. Replace any spare parts that were used in the maintenance.

B. Schedule maintenance work at least one week prior to date of performance, during the regular working hours of the facility.

C. Provide all services required to ensure safe and reliable performance of the elevators by regularly assigned maintenance personnel of the elevator contractor.

D. Provide a weekly preventive maintenance program schedule for each elevator.

E. Provide 24-hour emergency call-back service for the maintenance period, by promptly responding to requests from the Project Manager or his authorized representative by telephone or otherwise, to restore elevator services where a shutdown or trouble should develop.

1. Provide and keep current a suitable check chart for each elevator. The charts shall be posted in the machine rooms on which entries shall be made to indicate the status of scheduled items of maintenance work performed, and the time in man-hours. The Contractor must properly initial the chart to indicate that the work has been accomplished.

2. Notify the Contracting Officer immediately, in writing, of the existence or the development of any defects in, or repairs required to the elevators which the Contractor considers he is not responsible for under the terms of the contract, and furnish a written estimate of the cost to make necessary repairs. The Contracting Officer reserves the right to make final determination as to responsibility.

F. Provide on-the-job training for the BOR crew while performing required maintenance during the maintenance period. Include in this training any areas with which the BOR crew has questions or problems, and any areas of maintenance that are being overlooked or performed incorrectly.

C.1.10 INSTRUCTIONS

A. The instruction period for Government employees shall be not less than one (1) eight hour day for the work under this section. Manual and wiring diagram instructions given in elevator machine room will be considered the equivalent to classroom instructions.

B. Submit outline of instructions to be given, one (1) month prior to the Instruction Period, for approval.

C. Complete instructions before the warranty and maintenance period expires. If the instructions have not been completed prior to the termination of the maintenance period, extend that period as a part of the contractual requirements until the instruction requirements have been satisfied.

D. Provide, without additional expense to the Government, competent instructors to train employees of the Government, in the care, adjustment and operation and sequence functioning of the operation and the control system. Give instruction during regular working hours at the job site. Provide instruction only by qualified; factory trained engineering representatives possessing complete knowledge of the care, adjustment and operation of the elevator system.

1. Approximately half of the time shall be used for classroom instructions. All other time shall be used for instruction at the equipment. Where significant changes or modifications in equipment are made under the terms of the guarantee, additional instruction shall be provided as may be necessary to acquaint the operating personnel of the changes or modifications.

2. Three copies of an operating and maintenance manual, prepared by the contractor, shall be utilized by the contractor for instruction purposes. After completion of all instructions, the three copies of the manual shall be turned over to the Building Manager.

3. Three sets of as-built wiring diagrams with a complete description of operating sequences shall be furnished and delivered to the Construction Engineer fifteen (15) days prior to the start of the instructions, for use of the instructors.

4. The time and place of the instructions shall be coordinated with the Building Manager.

C.1.11 POWER SUPPLY

A. Verify that power available is 3 phase, 60 hertz, and 480 volts alternating current for elevator power and single-phase, 60 hertz 120 volts alternating current for elevator car lighting.

B. Failure to verify the power supply shall not relieve responsibility for the satisfactory operation of the supplied equipment.

C.1.12 CAPACITY, SPEED, TRAVEL

A. Provide new elevator equipment to maintain the capacity to lift the rated load at the rated speed in feet per minute, specified in the EXISTING EQUIPMENT section. Verify travel, terminal floors, number of stops and openings given in the schedule requirements indicated on the drawings.

C.1.13 ELECTRIC FEEDERS AND WIRING

A. Replace existing electric disconnect switches in machine room for elevator power supply with new fused or circuit breaker type labeled, lockable shunt trip disconnect, sized for new elevator controls and drives. Install new controller feeder wire and conduit from new disconnect switches to individual controller panels for each elevator. Include a 120VAC solenoid for operation of the shunt trip device in the new main line circuit breaker switches.

B. Provide new disconnects for the existing 110 Volt A.C. power supply for car light circuits for all elevators. New disconnects shall be labeled, located in the machine room, and lockable in the off position C. Provide conduits and fittings in accordance with applicable sections of ANSI C80, latest version. Reuse existing conduit if it is adequate and will meet Code requirements. Run conduits in a neat and orderly fashion.

D. Provide couplings and connectors for EMT of either the gland and ring compression type or the stainless steel multiple point locking type. All connectors shall have insulated throats. Fittings using set screws or indentations as a means of attachment shall not be used.

E. Suspend and anchor traveling cables so that the strain on individual cable conductors will be reduced to a minimum and connections to terminal blocks will be free from all strain. The outer cable covering must remain intact between junction boxes and abrupt bending of cable producing distortion of cable will not be permitted. If, due to sway or change in relative position of traveling cables, complete freedom from contact with the hoistway construction cannot be avoided, provide suitable shields or pads wherever necessary to prevent chafing or damage to the cables. .

F. Furnish and install all wires and cables necessary for the proper connection and operation of all equipment installed under the elevator contract. All conductors shall be in accordance with NEC requirements.

G. Unless otherwise specified, conductors exclusive of traveling cables, shall be annealed copper with 60o Centigrade or better insulation and shall be in accordance with Federal Specification J-C-30A. Single and multiple conductor cables shall have color coding or other suitable identification for each conductor. Unless otherwise specified, no joints or splices shall be permitted in wiring except at outlets. All conductors used for external wiring between the various items of elevator equipment shall be connected to terminal blocks which meet UL Standard 1059 (1975). Crimp-type connectors shall be applied with an appropriate setting tool to ends of all size No. 10 or smaller external wires.

C.1.14 ACCESSORIES

A. Furnish three as-built sets each of complete, legible field wiring diagrams, including single line diagrams showing all electrical circuits. List all symbols corresponding to the identity or markings on machine room and hoistway apparatus of the systems specified. Provide one set of diagrams, coated with laminated plastic or other approved covering, suitably bound and placed in the machine room where directed. Neatly bind and delivered each of the two remaining sets to the Contracting Officers Representative. Revise the diagrams to include all field modifications.

B. Furnish a complete set of tools necessary for making all system adjustments for each elevator machine room and deliver to the COR.

C. Include an adjuster's level service tool or terminal with complete written installation manuals, service manuals, adjustment information and instructions for performing systems adjustments, special and emergency functions, diagnostic trouble shooting, and systems testing as required by ANSI A17.1 code. The service tool shall become the property of the Government and if the device requires reprogramming it shall be performed at no additional cost to the government for the life of the equipment.

D. Install Government-furnished cylinder locks.

E. Provide a hoistway access switch at the top and bottom terminal landings for all elevators. Hoistway access switches shall be of the key operated type meeting all requirements of the A17.1 Code. The movement of a car by means of the hoistway access switch at the top terminal landing shall be limited to a distance of approximately 12 feet down travel and a return to the top landing. Mount access switches flush and inconspicuously in the door jamb or inside the terminal hall landing stations.

1. Faceplates, if furnished, shall be of metal of same composition and finish as the faceplates of landing call buttons for the corresponding landing. The exposed portion of each access switch or its faceplate shall have indelible legends to indicate its "Identity" and the "Up," "Down" or "Off" positions.

F. All elevators shall be provided with an operating device mounted on the car crosshead which will permit slow speed operation of the car. Separate additional means for operation of power door operators and automatic car leveling devices are not required. The operating device shall be mounted in a metal box and shall be rigidly secured in a position conveniently accessible on top of the car. Operating devices shall be shrouded or otherwise protected in an approved manner to prevent accidental movement.

G. Where access to elevator pit is through the bottom terminal landing, locate the pit stop switches 4 feet above pit floor and 18" above bottom landing floor and adjacent to the pit ladder.

H. Provide Hoistway Door Unlocking Devices at each entrance for all elevators, conforming to the requirements of the A17.1 Code.

C.1.15 PAINTING AND FINISHING:

A. Unless otherwise specified the machine, motor, motor drive, controller, selector, sheaves, car frame, counterweight frame, machine and sheave beams, guide rails and buffers except their machined surfaces, door operator, cams, and other ferrous metal items furnished for each elevator shall be painted with not less than one shop priming coat and one coat of semi-gloss enamel in the manufacturer's standard color.

1. Holes or other imperfections in the surfaces of a machine, motor, casting, motor generator and the like shall be filled and smoothed off before the factory priming coat is applied.

2. Repair any damage to paint or finish that occurred during installation or testing.

3. The painting and finishing of governor, car, hoistway entrances and doors shall be as specified under their respective headings.

B. Identification Markings:

1. Provide floor designations on the walls and/or doors of hoistway in accordance with the A17.1 Code.

2. Provide floor designations at each hoistway entrance on both sides of the jamb visible from within the car and the elevator lobby at a height of 60 inches above the floor. Designations shall be on a contrasting color background, a minimum of 2-1/2 inches high and raised at least 0.030 inch. Provide identification markings for machines, motor generators, controllers, etc. at locations where directed. The numbers of hoisting machines and motor generators sets shall be 4 inches high and the numbers for controllers, selectors and other auxiliary equipment shall be 2 inches high.

3. The identification numerals or letters for floor landings, machines, etc., shall be either stencil painted or decal type of a color which will contrast with color of the surface to which the marking is applied. Coat decal type markings with a coat of clear varnish or equivalent after application.

C.1.16 MACHINE BEAMS AND OTHER SUPPORT STEEL

A. All necessary structural steel beams or other steel members required for support of elevator machine, sheaves, rope hitches, governor, buffers, grating, and other elevator equipment, shall be provided. Bearing plates and anchors shall be provided to mount adapter beams and other support steel securely in place. Existing beams and slabs may be reused provided the calculations reveal they are adequate for the equipment to be used and support the loads in accordance with the A17.1 Code. Otherwise, provide support as required.

B. Provide metal sleeves projecting 2 inches above the concrete slab for all hoisting rope and governor rope, selector rope or tape, and other similar openings. Sleeves shall be not less than No. 12 U.S.S. Gage and shall have inside sleeves sloped same as the ropes and tapes.

C. Fill and finish all unused holes in machine room, secondary floors and walls, and hoistway to maintain all fire ratings.

C.1.17 GEARED MACHINES

A. Replace geared machine with equal capacity and speed geared machine with AC motor suitable for VVVF operation, outfitted with new brakes assembly.

B. Replace existing drive sheaves. Replace deflector sheaves.

C. Provide guards around drive sheave and any rotating components.

C.1.18 GEARLESS MACHINES

A. Retain the gearless hoisting machines. Examine mechanical and electrical features of the existing motors. Rehabilitate, rebuild and/or replace components that show potential for failure.

B. Replace motor bearings. The motor bearings shall be either the ball or roller type arranged for grease lubrication and fitted with grease gun connections and drain plugs. The bearings and lubricant reservoirs shall be dust tight and shall incorporate effective lubricant seals or other means to prevent lubricant leakage. The fittings for lubrication may be omitted where pre-lubricated sealed for life type bearings are used.

C. Replace drive sheave.

C.1.19 CONTROLLER

A. Furnish and install new controls for all elevators. The elevator controls shall be self-monitoring. The elevator controller shall provide operation as specified hereinafter. Controllers shall be of the floor mounted, free standing type or the wall mounted type with NEMA 1 enclosures, with locking cabinet doors. Bolt the bottoms of the control panels to the floor.

B. The sockets or circuits boards used for the mounting of relays and electrical or electronic components shall be made of an approved moisture resisting dielectric material having dielectric and structural properties suitable for its intended usage. The material shall conform to requirements of NEMA LI 1-1971 (R 1976) for the type and grade suited for the application. The sockets and circuit boards shall be secured to panel frame with bolts, screws or other approved demountable means.

1. The controller panel frame shall be of rigid steel construction to provide means for mounting circuit boards or devices. Panel frames supporting controller switching devices which produce a perceptible panel frame vibration, shall be provided with an approved vibration absorbing mounting.

C. All wiring on the panels shall be neatly formed and securely fastened in place. All equipment on the panels shall be readily accessible and easily replaceable. All controller relays shall be magnetically operated. Solid state components shall be electrically sized, physically spaced, and ventilated so their heat can be adequately dissipated during operation. All controller components shall be designed and rated to provide at least 20 years of operation as specified, with recommended maintenance, before replacement is required.

1. All mechanical switches and relays shall be opened either compression of leaf type contact springing or gravity when power is interrupted except those switches or relays which are magnetically or mechanically latched closed. All A.C. relay magnets shall be designed so residual magnetism will not interfere with proper operation. All similar switch and relay units on controllers shall be of the same manufacture.

D. Wiring for the various external control and operating circuits shall be brought to a terminal board and then shall continue to the various components on the controller panel. Terminal board may be an integral part of panel or a separate panel mounted adjacent to same panel or terminal blocks mounted on the panel. Each terminal is to have indelible means of identification to facilitate testing of the various controller circuits. All connection of wires to terminal boards from external circuits shall be made with solderless pressure type wire connectors. When a number of external connections are made to the same terminal, stud washers shall be provided between lugs to insure uniform seating and contact.

E. Each device on the controller panels shall be properly identified by name, letter or standard symbol which shall be neatly stencil painted, (or otherwise marked) in an approved indelible and legible manner, on the device or panel. The identification markings shall be coordinated with identical markings used on the wiring diagrams.

C.1.20 SOLID STATE MOTOR DRIVE

A. Provide Variable Voltage Variable Frequency AC or DC Regenerative type operation System shall be adequate size to handle to new hoist machine. Suitable isolation transformer shall be provided. The system shall, during acceleration and deceleration periods, gradually change the voltage and frequency applied to the elevator motor without interruption of power to the motor to provide smooth acceleration, deceleration and running speeds, and accurate floor stops. All safety circuits shall conform to ASME 17.1 Code. Line filters, noise spike or notching suppressors and isolation transformers shall be provided to ensure electrical feedback to power source of power generated by overhauling loads shall not affect other computer operated equipment in the building. Resilient isolators shall be provided to support all drives and transformers. Audible noise shall not exceed 70 decibels under any operating condition.

1. The motor drive shall be equipped with devices which shall limit the current applied to the hoisting motor to that required for actual specified duty, and shall prevent damage to hoist motor from overload, overvoltage, or excessive current.

2. In case of brake application under normal operation, the hoisting motor shall be slowed down electrically, through a dynamic braking effect, so it will be practically stopped at the instant of brake application.

3. Install motor drive components in a NEMA 1 enclosure located in the machine room. Supply components conservatively rated to provide a life of not less than 80,000 hours. Make all electric connections between the electric feeder, the motor drive, and the elevator hoist motor with suitable connectors or to suitable terminal blocks.

C.1.21 CAR LIGHTING AND FAN CONTROL

A. Equip the control system with an adjustable timing device which when an elevator that has remained idle at its assigned parking floor for a predetermined time after the last registered call has been answered, shall automatically extinguish the regular interior car lighting and stop the car fan or blower, if running, of the corresponding car but the power circuits to convenience lights and receptacles on top and bottom of car shall not be interrupted. Any hall or car call registration shall cause the car lighting and fan to resume their normal functions.

B. Arrange circuits so that power to the car lighting and car fan or blower is not interrupted by an overload, blown fuse, disconnect switch, or other abnormal conditions to the elevator controls.

C.1.22 SIMPLEX AUTOMATIC OPERATION

A. The elevators shall have Simplex selective-collective operation.

B. The operating devices for automatic operation shall include dispatch buttons in each car, landing call buttons and a group supervisory control system, all electrically connected to the control equipment governing selection of landing stops be made, direction of travel, starting, acceleration, retardation and stopping of the elevator cars and the systematic dispatching operations of the elevators.

C. Provide a new main car operating panel of the swing return type containing the following devices:

1. A series of car dispatch buttons having designations corresponding to the landing served and an integral registration light for each button. The actuation of a dispatch button in either panel shall cause the corresponding registration light in both panels to be illuminated until the call is canceled.

2. Key operated emergency stop switch.

3. Emergency signal button connected to a 6 inch diameter bell located on car top.

4. Door open and close buttons.

5. Key operated emergency service switch, pilot light and all necessary instructions, signage, etc. behind locked Firefighter’s panel.

6. Key operated independent service switch, on main panel only, exposed flush on faceplate.

7. Telephone system tie into the existing phone network.

8. Provide a car call On-Off Key switch control by each car call button to be utilized as a security system.

9. Provide space and wiring for Key Pad control security system in car operating panel.

D. All exposed car controls shall be at least 3/4-inch in size. Designate all control buttons by Braille and raised standard alpha-numeric characters, and standard symbols as required by the A17.1 Code. Identification markings for all exposed controls shall be adjacent in a contrasting color background to the left of the controls. Symbols, letters, or numerals shall be a minimum of 1/2 inch high and raised or recessed 0.030 inch. The control button for the main entrance shall be designated by a raised star to the left of the button. Symbols shall be industry recognized standard types firmly affixed without adhesives.

E. The emergency stop and emergency signal bell devices shall be approximately 35 inches above the car floor. The highest car dispatch button shall be no more than 54 inches above the floor.

F. A metal service cabinet shall be located directly below, or arranged as an integral lower section, of the main car operating panel. The service cabinet shall have a hinged door with independently keyed cylinder lock. Arrange door to swing away from the elevator entrance. Mount the following devices behind the metal door:

1. Car light switch.

2. Car fan or blower switch.

3. Emergency light test button.

4. Keyed inspections switch to permit use of hoistway access switch.

5. 110 V GFI duplex receptacles complete with wiring and cover installed in service cabinet of each car.

6. Locate devices in all car operating panels in identical relative positions. Provide readable, indelible markings for each device as required to indicate its identity and positions.

G. Provide new landing button signal fixtures, with space and wiring for card reader/key pad control for security system, and Marshals Service key switch and jewel for the passenger elevators containing up and down buttons at each intermediate landing, single button fixtures at each terminal landing, and an integral registration light for each button. The group of elevators shall have landing call buttons, installed at ADA height in the existing locations.

C.1.23 MICROPROCESSOR SUPERVISORY CONTROL

A. The microprocessor automatic control system shall continuously scan and analyzes every elevator's changing position, condition and workload. It shall compute the potential arrival of every car in REAL TIME. Supervisory and individual controllers shall be of the floor mounted, free standing type with NEMA 1 enclosures, with locking cabinet doors.

B. REAL TIME Management: REAL TIME management of the dispatching shall permit the microprocessor to forecast the requirements for elevator service. The following elevator system information shall be taken into account to calculate the time required for each of the cars to travel to a hall call. The car with the MINIMUM RESPONSE TIME is dispatched to the hall call. ETA (Estimated Time Arrival) System Information:

1. Elevator in or out of service

2. Elevator in bypass mode

3. Elevator at lobby in NEXT mode

4. Direction and position of each elevator

5. Condition of the car doors: open, closed, opening, or closing.

6. Condition of each elevator: accelerating, full speed, decelerating.

7. Number of stops required due to car calls

8. Coincident car calls

9. System conditions: up peak, down peak

10. Predictive car and hall call assignments. For example, in most instances, an up hall call causes a consequential car call to be registered. Forecasting future call movement in this manner gives the processor a more accurate "picture" of the developing traffic.

C. All of the above data shall be continuously scanned and hall calls shall be reassigned if the conditions change and another car can respond faster. Assignments shall be made at a rate of up to 16 times per second thus reflecting changes in the traffic on a REAL TIME basis.

D. Operation:

1. Heavy Up Incoming Traffic Conditions: The microprocessor shall automatically recognize heavy incoming traffic in the morning, as well as other times during the day, by monitoring changes in car passenger loads, the number of car calls registered, and the frequency of cars departing the lobby. The incoming traffic intensity shall determine the number of cars assigned to the lobby. The system shall recognize the increasing incoming traffic early and react in a controlled manner.

E. Once a car completes its up trip after it has answered its car calls and any up hall calls assigned to it, it shall then reverse and proceed to the lobby floor, provided the system is still in heavy up. The assignment of these up and down hall calls is described in the following paragraph.

F. When the incoming traffic becomes lighter, the microprocessor shall allocate cars from the lobby accordingly. The other cars park with their doors closed at the landing they last served.

G. Select Hall Waiting Time (Up Peak): The up and down hall call response time shall be preset so that these calls can be answered in an adjustable minimum/maximum time interval, permitting better service to the incoming traffic. When this feature is enabled, the microprocessor shall calculate the potential arrival of each car, and assign or reassign the up and down hall calls (with the exception of the lobby floor) to the car that meets the selected service requirements, and not necessarily to the car with the best potential arrival time. If the calculated ETA's do not satisfy the minimum/maximum time interval, microprocessor shall assign the call to the car having its ETA closest to the minimum selected service. This feature shall be implemented on a per floor basis.

1. Heavy Down Traffic Conditions: The microprocessor shall automatically recognize heavy ongoing or down traffic by monitoring the number of down hall calls, their ETA and the actual waiting time. During this mode, the down hall calls shall be given preferential service to handle the traffic which can occur in the evening or other time during the day. All cars assigned to the lobby floor shall be released. Cars arriving at the lower dispatching terminal shall light their lantern and remain at the terminal for the same length of time as for any other floor. All down hall calls are assigned based on which car has the best potential arrival time. The assignment of the up hall calls is described in the following paragraph. Down peak traffic mode shall have priority over up peak.

H. 23.8 Select Hall Waiting Time (Down Peak): The up hall call response time shall be preset so that these calls can be answered in an adjustable minimum/maximum time interval permitting better service to the outgoing traffic. The assignments shall be made the same way as under "Select Hall Waiting Time (Up Peak)" but for the up hall calls only.

I. 23.9 Two-way Traffic Conditions. All hall calls shall be given equal priority during this mode. An adjustable number of cars (usually one) are assigned at the lobby terminal.

J. Available cars shall be parked at the last floor served and can be assigned to hall calls above or below their position. A car traveling up or a car traveling down shall not be required to travel to the terminal floor or to the main floor. All car assignments shall be made on the basis of the best forecast. Since the forecast is continually updated, reassignment of the call is also made based on the best time, always ensuring the quickest possible response.

K. Intermittent or Light Traffic. The microprocessor shall automatically keep the required number of cars in service based on the forecast waiting time. Cars shall remain parked at the last floor served.

L. Lobby Terminal Demand. The microprocessor shall always ensure that there are an adjustable number of cars at the lobby during off peak conditions. When there is no next car at the lobby, the ETA of the down traveling cars shall be calculated. If no car can reach the lobby in an adjustable time, a lobby demand is automatically placed to an available car.

M. Coincident Calls. The microprocessor shall give priority in its assignment of a hall call to a car with a corresponding car call. If this coincident hall call cannot be answered within the adjustable priority time, the car with the best potential arrival time shall then be assigned.

N. During peak conditions, the priority time is increased (adjustable) to further benefit from the elimination of a stop due to the coincident call.

O. Nonvolatile Memory

1. A nonvolatile memory (EPROM) shall be used to store the following group adjustments:

2. Number of cars required at lobby

3. Number of cars required in the high zone

4. Up peak traffic detection parameters

5. Minimum up peak duration

6. Down peak traffic detection parameters

7. Minimum down peak duration

8. Traffic demand parameters to release the next car

9. Select hall waiting time parameters

10. Coincident calls maximum waiting time

11. The stopping table for all the cars with the direction of the stops

12. Security information

13. Special features such as dual and alternate lobby floors, VIP, service floor, priority floors, etc.

P. Remote Monitoring Capability:

1. A. Provide all necessary items to monitor all elevator functions or diagnostics from a remote location.

C.1.24 MACHINE ROOM AND HOISTWAY

A. Provide automatic closing, auto locking hardware.

B. Provide all necessary energy efficient lighting, GFI outlets and disconnects required by Code in the machine room and pit.

C. Provide fire caulk as necessary to maintain 2 hour fire rating in machine room and hoistway.

C.1.25 EMERGENCY POWER OPERATION

A. Emergency power will not by supplied to the elevator machine room at this time. As emergency power may by supplied in the future, all necessary controls, wiring, switches, etc., will be supplied.

B. Provide all necessary control and signal provisions as hereinafter specified for operation on emergency power. During emergency power, the cars shall, one at a time, automatically be returned to the lobby floor at full rated speed. If a car is unable to move, it is bypassed after a predetermined time interval. After all cars have been returned, elevator No. 1 shall automatically be put into operation to provide service to the building. Provisions shall be made to manually override the automatic operation.

C.1.26 INDIVIDUAL CAR CONTROL FUNCTIONS

A. Supervisory and individual controllers shall be of the floor mounted, free standing type with NEMA 1 enclosures, with locking cabinet doors.

B. Leveling: An automatic two-way leveling device shall be provided and designed to govern the leveling of the car to within 1/4" above or below the landing sill. Any other travel or under travel or rope stretch shall return the car level to the landing sill automatically with the first movement of leveling.

C. The doors shall open automatically when the car arrives at the floor to permit transfer of passengers. After an adjustable time interval, the doors shall automatically close.

D. Pre-opening shall be initiated as the computer calculates the correct point at which to initiate the door opening using both velocity and distance information.

1. Door Timing: The door open time shall be field adjustable with resolution of 0.1 second. The dwell time for a car call stop shall be adjustable between one and eight seconds, and the dwell time for a hall call stop shall be adjustable between three and eight seconds. The hall call timing shall predominate. In the event the light beam is interrupted, the door open time shall be reduced to an adjustable 0.5 to ten seconds and shall be separately adjustable for a car or hall call stop.

2. Door Protection: When the doors do not open or close perfectly according to their respective operation, they repeat or recycle the operation for a period of four minutes. After that time, the control shall shut down the car to prevent any damage to the door equipment.

3. Nudging: In the event the doors are held open for a predetermined adjustable time interval (15-20 seconds) after automatic door closing has been initiated, a buzzer shall sound and a signal given to close the door a reduced speed and torque.

E. Operating Controls.

1. MARSHAL’S SERVICE:

1.1. This service shall call the elevator to any landing on an as-needed basis. A marshal’s service keyed call switch shall be installed at every landing, and a marshal’s service call registered light shall be installed in every hall button station.

1.2. When the marshal’s service momentary call switch is activated, the marshal’s service call registered light shall illuminate at the every floor, and the elevator system shall instantly select the elevator to respond to the marshal’s service call. All existing car calls within the selected car shall be completed and all hall calls which had previously been assigned to that car shall be canceled. The elevator shall then proceed to the landing that has the marshal’s service call.

1.3. On arrival at the marshal’s service floor, the car shall remain with doors open for a predetermined time interval. If, after this interval has expired, the car has not been placed on in-car marshal’s service operation, the car shall automatically return to normal service.

1.4. A marshal’s service key switch shall be located in each car operating station for selecting in-car marshal’s service. Upon activation of the key switch, the car shall be ready to accept a call for any floor, and after the doors are closed, proceed nonstop to that floor. The return of the key switch to the normal position shall restore the car to automatic operation. The key switch in the car and hall shall be keyed alike.

2. PIT FLOOD ALARM:

Provide a two-stage pit flood device.

2.1. Stage I shall operate when the water level exceeds two inches above the pit floor, and shall activate a bell mounted in the pit.

2.2. Stage II shall operate when the water level exceeds six inches above the pit floor, and shall activate a circuit which shall initiate Emergency Fire Service Recall Phase I to recall to the second (alternate fire) landing, and remove the elevators from operation until the pit flood device has been reset.

2.3. The lowest level car call shall be blocked on Emergency Fire Service Phase II only on pit flood alarm operation to prevent operation into a flooded pit.

1. Anti-Nuisance: In the event that there are a number of car call stops (adjustable one to ten) and the light beam is not interrupted, all the car calls shall be canceled.

2. Bypassing and dispatching due to Load Weighing: The elevator shall bypass hall calls when their respective load weighing inputs are energized at 67% of rated capacity and dispatch when inputs indicate 50% of rated capacity is loaded.

3. Emergency Operation: The elevators shall be…