142100 GSA CMS Electric Traction Elevators.docx.pdf

SECTION 142100 - ELECTRIC PASSENGER ELEVATORS

PART 1 GENERAL

1.1 GENERAL NOTES

A. General Provisions of Contract, including general and supplementary conditions and Division l Specification sections, apply to work of this section.

B. Provide all labor, materials, services, and equipment necessary to complete the renovation of the elevators as specified herein.

C. Drawings and specifications are intended to show general arrangement, design and extent of work. As such they are not intended to be scaled for roughed in measurements or to serve as shop drawings.

D. Anything shown on drawings and not mentioned in these specifications or vice versa, as well as any work which is obviously necessary to complete the Project, within the limits established by the drawings, specifications and codes, although not shown on or described therein, shall be performed by the Contractor as part of their work.

E. The advertising privileges will be retained by the GSA, and it shall be the duty of the Elevator

Contractor to keep the premises free from posters, signs, decorations, etc. No company names or logos on any equipment will be permitted unless approved by GSA.

1.2 DESCRIPTION OF WORK

A. Extent of work in this section is to renovate seven (7) electric traction elevators as listed in the table below in the GSA Centers for Medicare & Medicaid Services Headquarters building, Woodlawn Maryland, as noted in the elevator schedule. The schedule indicates the elevators to be renovated, required performance, control, capacity, features, and finishes for the elevator.

Building Group Center 1.1, 1.2, 1.3 Center 2.1, 2.2, 2.3 Center 2.4

B. Electric traction elevators are hereby defined to include elevators in which cars are hoisted by ropes over power driven traction sheaves, complete with components, equipment, machines, controls, and devices as indicated and as required for safely operating elevators at rated speed and capacity.

C. The renovation of the elevators shall take not more than one group of elevators out of service at a time. Additionally, no more than one service elevator shall be removed from service at a time. The Contractor in this section shall provide a written schedule, detailing specific tasks for the elevator and critical dates for the completion of related work. This schedule shall be acceptable to the Owner. The elevator shall be renovated per this schedule. Once work begins on site, the Elevator Contractor shall keep appropriate manpower onsite continuously until completion.

1. Anytime more than one (1) group of elevators will be out of service group at a time, coordination with the building Owner to perform this work after hours will be provided. This may include emergency power testing, fire alarm testing, etc.

2. In buildings with a single freight elevator, the freight elevator shall be renovated first. Should two buildings have a single freight that require modernization, it is acceptable that the

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elevators shall be renovated such that a passenger elevator that has yet to be renovated remains to be used as a service elevator while the service elevator is renovated.

3. Barriers and signage shall be provided to prevent the public from access the elevators.

Signage shall provide directions to other banks of elevators serving similar floors.

1.3 SUBMITTALS

A. Refer to Division 1 for additional information regarding submittals, including submittal requirements, processing procedures, and limitations of review. Approval of shop drawings and cuts is for general arrangement only and does not include measurement, which is the contractor's responsibility, or approval of variations from the contract documents.

B. Pre-Construction Submittals: The following shall be submitted for review prior to the manufacturing of equipment.

1. Product Data: Submit manufacturer's technical product data and instructions for each principal component or product. List and describe features of control system, performances, and operating characteristics. Submit brochures of all signal and operational fixtures, control and drive equipment, hoistway door equipment, door operator, and door protective device.

2. Shop Drawings: Shop drawings shall be prepared by skilled draftsmen and presented in a clear and thorough manner as follows:

a. Elevator Machine Room Layout Drawing: Drawing shall include dimensional layout drawing for the elevator machine room indicating coordination with building structure and relationships with other construction including, but not limited to, electrical and HVAC equipment. Indicate maximum dynamic and static loads imposed on building structure at points of support per the ASME A17.1 Safety Code for Elevators and Escalators. Indicate project location, capacities, speeds, sizes, performances, operations, safety features, controls, finishes, weights and locations of machine room components, and similar information on the layout drawing.

b. Fixture drawings: Submit straight line dimensional drawings showing details of all signal and operational fixtures.

c. Car Enclosure: Submit plans, elevations, and details of new car finishes.

d. Approval of shop drawings is for general arrangement only and does not include measurement, which is the contractor's responsibility, or approval of variations from the contract documents. The purpose of the shop drawing submittals by the contractor is to demonstrate to the owner the contractor understands the design concept and demonstrates an understanding of the equipment and materials to be furnished.

e. Any changes from the GSA adopted building standards shall be clarified through a request for information.

3. Samples: Submit samples of exposed finishes of car enclosures, hoistway entrances, and signal equipment per Division 1 requirements.

4. Maintenance Certification: The controller manufacturer shall submit a written certification, signed by the manufacturer of the equipment, making a commitment to provide direct support to the Owner, or the Owner’s elevator maintenance service representative, including availability of parts (for inventory, not on an “exchange only” basis), diagnostic tools, and technical & engineering support. In addition, all parts and support shall be provided at a reasonable cost in line for which the original manufacturer would charge to its own customer

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base and response shall be in a timely manner. This commitment shall remain in effect for a minimum of twenty-five (25) years after substantial completion of the project.

C. Post Construction Submittals: Prior to completion and acceptance of the project, the following shall be submitted for review and acceptance.

1. Diagnostic Device: Upon completion of work provide diagnostic testing device, or maintenance terminal, suitable for all troubleshooting and testing procedures related to the specific type of microprocessor control. This diagnostic testing device, or maintenance terminal, shall conform to the operating procedures under the testing section of these specifications. If onboard diagnostics are provided in the controller to meet this requirement, provide Adjustors Manual for proper interpretation of onboard diagnostics (see 1.3.C.2.b below).

2. Maintenance Manuals: Submit job-specific bound manuals for each elevator or group of elevators. Submit the required number in hard copy plus a minimum of one (1) electronic copy in .pdf format.

a. Operating and maintenance instructions, lubricating schedule and instructions, parts listing, recommended parts inventory listing for motor and critical components, diagnostic device operations manual, emergency instructions and similar information. Include description of any manufacturer specific safety features that are beyond code requirements.

b. The diagnostic device operations manual shall be complete with adjustment settings, sequence of operation, and other diagnostic technical data required for adjustments, tuning, maintenance, and operation of the elevators including performance of all required acceptance and periodic testing required by the Elevator Code. User’s instruction manual shall include access codes required for accessing microprocessor equipment for adjusting or programming.

c. Detailed "Maintenance Control Program" specific to the elevator as required by Elevator Code. The MCP shall be in place to maintain the equipment in compliance with Elevator Code. The MCP shall specify examinations, tests, cleaning, lubrication, and adjustments to applicable components at regular intervals and shall comply with Section 8.6.1 of the Elevator Code. The MCP shall include “On-Site Documentation” and a method for “Maintenance Records” and “On-Site Maintenance Records” as described in Elevator Code. One (1) hard copy of the “Maintenance Control Program,” identical to the MCP provided in the Maintenance Manual, shall be placed for use in the elevator control room.

d. Wiring Diagrams: Complete electrical circuit diagrams for control and operational features as installed, showing location and wiring for power, signal and control systems. The diagrams shall differentiate clearly between manufacturer-installed wiring and field installed wiring.

3. On-Site Wiring Diagrams: Provide job-specific wiring diagrams located near the elevator controller in the elevator control room. Provide one (1) hard copy sized at 11″ x 17″ minimum, clear-laminated wiring diagrams.

4. Keys: Provide a total of six (6) sets of keys for each type of key fixture on the elevator equipment. Keys shall be tagged with permanent marking, identifying function and use.

5. Certificates and Permits: Provide Owner with copies of all inspection/acceptance certificates and operating permits as required by governing authorities to allow normal, unrestricted use of elevator. If any variances are required from GSA for the product installed they shall be

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obtained by the Contractor. Provide a copy of any variances to the Owner upon completion of the project.

1.4 QUALITY ASSURANCE

A. Installer Qualification: The Installer shall be the elevator manufacturer, or a licensee of the manufacturer, who has a record of successful experience with the renovation of similar elevators.

The Contractor shall have, as a minimum, the following qualifications and documentation verifying these qualifications shall be submitted prior to award:

1. Minimum of five (5) years’ successful experience in installing and servicing similar elevator installations from the local in-house administrative branch.

2. Installed at least ten (10) completed and accepted elevator systems of similar size, scope, logic control, and motion control required by this contract.

3. An existing in house administrative and technical organization within 25 miles of the project location staffed with competent personnel who are experienced in the elevator related work required to install and service the elevator systems as specified.

B. Elevator Code: Except for more stringent requirements as indicated or imposed by governing regulations (which must be complied with), comply with applicable requirements of the ASME A17.1-2022 Safety Code for Elevators and Escalators hereinafter referred to as the “Elevator Code”.

C. Seismic Requirements: Elevators are not required to meet the seismic requirements of Elevator Code section 8.4. Seismic components and features shall be provided as specified herein.

D. NFPA Code: Comply with applicable NFPA Codes and specifically with sections relating to electrical work and elevators.

C. Accessibility Standards: Comply with the most current Architectural Barriers Act Accessibility Standards.

E. Performance Requirements: Provide an elevator that meets the following performance requirements:

1. Speed: +/- 2% of contract speed under any loading condition.

2. Capacity: Safely lower, stop, and hold up to 125% of rated load.

3. Stopping Accuracy: 1/4 inch under any loading condition.

4. Floor to Floor Performance Time: 10.5 seconds for passenger elevators and 15.5 seconds for the service elevator (based on a floor height of 15'- 3") from start of doors closing until doors are 3/4 open and car is level and stopped at the next successive floor under any loading condition or travel direction.

5. Door Close Time: 3.0 seconds for passenger elevators, 5.0 seconds for service elevators.

6. Door Open Time: 2.0 seconds for passenger elevators, 4.0 seconds for service elevators.

7. Door Open Dwell Time: 3.0 seconds car call / 5.0 seconds hall call. Dwell time shall be reduced to 0.5 seconds upon activation of the door protection device or the initiation of any car floor button.

8. Nudging: 45 seconds.

9. Smooth acceleration and deceleration for comfort of ride.

1.5 INITIAL MAINTENANCE AND WARRANTY

A. Maintenance Service: Furnish maintenance and callback service on seven (7) traction Elevator nos. 11-13, 21-23, and 24 and eight (8) hydraulic Elevator Nos. 31-33, 41-43, 44 and 71 from

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award of project until acceptance of the complete Project work by Owner and continuing for a period of twelve (12) months thereafter. The maintenance and call back service shall include at a minimum, but not be limited to, the full maintenance requirements as follows:

1. Maintenance service shall be performed by skilled elevator personnel directly employed and supervised by the same company that furnished and installed the elevator equipment specified herein.

2. This service shall include:

a. Monthly examination of each elevator unit in the project, as a minimum.

b. Lubricating, adjusting, repairing and replacing of all parts as necessary to keep the equipment, including battery packs, in first class condition and proper working order.

c. Furnish all lubricants and parts required.

d. Equalizing tension and shortening of hoist ropes when necessary.

e. Assure smooth and consistent operation of automatic hoistway doors and car doors.

f. Assure smooth starting and stopping and accurate leveling at all times.

g. Provide all periodic, annual and maintenance testing in accordance with the Elevator

Code.

h. The contractor shall keep clean of all dirt and debris guide rails, tops of cars, bottom of platforms, machine rooms, elevator hoistways and pits. All necessary cleaning supplies and equipment shall be furnished by the contractor.

i. An annual inspection, as described in the Elevator Code and/or as required by governing authorities, in the eleventh (11th) month of the new installation maintenance period.

3. The maintenance service shall not include the performance of any work required as a result of improper use, accidents or negligence, for which the contractor is not directly responsible.

4. All work shall be completed by trained employees of the elevator contractor and performed during normal working hours. Include 24 hour/day, 7 days/week emergency callback service.

Owner is responsible for the difference between straight time cost and overtime cost of said callbacks. Exclude only repair/replacement due to misuse, abuse, accidents, or neglect caused by persons other than installer's personnel. Response to non-emergency service calls shall be within 2 hours of the call and response to emergency service calls shall be within 1 hour of the call.

5. During the eleventh month of the new installation maintenance service period, a post warranty inspection shall be coordinated by the installing contractor to ensure the elevator is in a good state of maintenance repair and all maintenance manuals, diagnostic tools and Maintenance Control Program documents are in place. The inspection shall include the installing contractor, the Owner’s current elevator maintenance contractor and the Owner’s representative.

6. The contractor shall maintain a log in the elevator machine room. The log shall list the date and time of routine examinations and all trouble calls. Each trouble call shall be fully described including the nature of the call, necessary corrections performed and or parts replaced.

7. Maintenance service shall conform to the requirements of Section 8.6 of Elevator Code. This shall include the provision of a written Maintenance Control Program and maintenance record keeping that is consistent with Elevator Code requirements.

B. General Warranty: The elevator warranty specified in this section shall not deprive the Owner of other rights the Owner may have under other provisions of the Contract Documents and shall be in addition to, and run concurrent with, other warranties made by the Contractor under requirements of the Contract Documents.

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C. Warranty: Provide special project warranty, signed by contractor, installer, and Manufacturer, agreeing to replace, repair/restore defective materials and workmanship of elevator work during warranty period. "Defective" is hereby defined to include, but not by way of limitation, operation or control system failures, performances below required minimums, excessive wear, unusual deterioration or aging of materials or finishes, unsafe conditions, the need for excessive maintenance, abnormal noise or vibration, and similar unusual, unexpected and unsatisfactory conditions. The warranty period is twelve (12) months starting on date of final acceptance of each elevator and shall be extended until "defects" as defined in this warranty are corrected.

PART 2 MATERIALS AND COMPONENTS

2.1 GENERAL

A. Provide manufacturer's standard pre-engineered elevator system with modifications or added features that will comply with or fulfill the requirements of elevator schedule sheets or, at manufacturer's option, provide custom manufactured elevator systems that will comply with the requirements. Where components are not otherwise indicated, provide standard components, published by manufacturer as included in standard pre-engineered elevator systems, and as required for a complete system.

2.2 ELEVATOR MACHINERY AND CONTROL EQUIPMENT

A. Elevator Machines: For Elevator No. 24, the existing geared, traction type drive machine and deflector sheave shall be removed and replaced with new. The new machines shall be of the worm and gear type, roped 1:1, with motor, brake, and traction drive sheave compactly mounted on a continuous bed plate and then mounted to the existing steel machine beams. Sound isolation pads shall be installed beneath the machine bed plate to reduce vibration and noise transmission to the building structure. The contractor is responsible for design of the new drive machine base, required blocking beams, cutting of holes, welding, and any other requirement to interface with the existing machine beams and machine room floor. Adjust for proper alignment of new machines to existing elevator equipment for proper traction relation to result in a smooth quality of ride

B. Elevator Machines: For Elevator Nos. 11-13 and 21-23, the existing geared, traction type drive machines and deflector sheaves shall be removed. Provide new gearless PMAC machines, single wrapped, 1:1 roping with motor, brakes and traction sheave, compactly mounted on a continuous bed plate and then mounted to the existing steel machine beams. Provide adaptive bed plates with machines to allow for proper mounting onto the existing machine beams and blocking beams. Sound isolation pads shall be installed beneath the machine bed plate to reduce vibration and noise transmission to the building structure. The contractor is responsible for design of the new drive machine base, required blocking beams, cutting of holes (if required), welding, and any other requirement to interface with the existing machine beams and machine room floor.

Adjust for proper alignment of new machines to existing elevator equipment for proper traction relation to result in a smooth quality of ride.

C. For all new drive machines, the following shall be provided:

1. Deflector sheaves shall be provided and may be mounted integral with the bed plate in the elevator machine room, above the machine room floor level, or mounted on the bottom of the existing machine beams in the top of the elevator hoistway, below the machine room floor level. Deflector sheaves shall be provided with roller bearings.

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2. The drive machine motors shall be an alternating current type designed for elevator service with high starting torque and low starting current incorporating devices to protect against overloading.

3. The brake shall be spring applied and electrically released designed for smooth stops with variable loads.

4. Provide a redundant braking means for the elevator drive machine, sized appropriately for the application. This redundant means shall serve as a protection against unintended movement of the elevator car away from the landing in either direction with the hoistway doors not in the locked position and the car door not in the closed position, as a result of failure in the electric driving machine motor, brake, coupling shaft, gearing, control system, or other component on which the speed of the car depends, except for the hoist ropes and drive sheave of the machine.

5. Provide steel angle guards around the cable access holes or duct slots in the machine room floor. Provide smoke guards for sheaves, cables, and cable slots around the cable access holes in the machine room floor within 2” of the ropes.

6. Provide rope guards around the drive machine equipment such that the equipment is guarded from accidental rope contact where the vertical rope projection upon a horizontal plane extends beyond the base of the machine.

7. When an elevator drive machine cannot be viewed from the respective elevator’s electrical disconnect, a separate stop switch shall be installed adjacent to the drive machine.

D. When an elevator drive machine cannot be viewed from the respective elevator’s electrical disconnect, a separate stop switch shall be installed adjacent to the drive machine.

E. Power Control: Variable voltage, variable frequency A.C. drive system shall be provided. The power for the system shall be taken from the building three phase power supply. A.C. voltage shall be changed to D.C., and a power transition inverter circuit shall change D.C. voltage to A.C.

to power elevator motor. Motor speeds and torque shall be controlled by varying frequency and amplitude of A.C. voltage. System shall be regenerative when on normal power and non-regenerative when on emergency power.

1. The variable voltage control shall provide the elevators with automatic self-leveling that shall bring the elevator cars level with the floor landing regardless of load or direction of travel.

The automatic self leveling shall correct for over travel, under travel, and rope stretch.

2. A digital tachometer or encoder shall provide the speed feed back for accurate speed control under varying loads and temperature conditions in both directions. The speed control shall provide optimal speed patterns for each run regardless of distance to provide minimum floor to floor times.

3. Provide isolation transformers, line filters, and chokes to prevent electrical peaks or spikes from feeding back into the building power system from the solid state converters. Provide chokes to omit airborne electrical noise.

F. Controller:

1. A microprocessor computer based control system shall be provided to perform all of the functions of safe elevator motion and elevator door control and shall be Smartrise C4 Traction controller.

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2. The controller shall be designed with a split cabinet to separate high voltage from low voltage for efficiency and safety of future maintenance and troubleshooting of the unit.

3. The controller shall include all the hardware required to connect, transfer, and interrupt power and protect car operational and group supervisory control. A three-phase overload device shall be provided to protect the motor against overloading.

4. Controller shall be rated at 10,000 Amps RMS Symmetrical Short Circuit Current (SCCR).

5. Identify each device, module and fuse (with ampere rating) by name, letter, or standard symbol, in an indelible and legible manner on the device or panel. Coordinate identification markings with identical markings on wiring diagrams. Use light emitting diodes (LED) for visual monitoring of individual modules. Components shall have interlocking circuits to assure fail-safe operation and to prevent unwarranted elevator movement should any component fail to function properly. Modules shall be of the type that plug into pre-wired mounting racks. Field wiring or alteration shall not be necessary in order to replace defective modules.

6. The elevator shall be provided with an automatic leveling device that will bring the car to a stop within ¼″ of the landing level regardless of load or direction of travel. Landing level will be maintained within the leveling zone irrespective of the hoistway doors being open or closed.

7. Provide manufacturer's standard pre-engineered microprocessor system that shall control car movements in a simplex or group operation, as applicable. Provide automatic dispatching of selected cars in response to hall calls with automatic response of system to changes in demand for different traffic conditions.

8. A car control station shall be furnished for each elevator that shall contain a bank of buttons numbered to correspond to the landing served. At each terminal landing, a single push button shall be provided and each intermediate landing a button fixture shall be provided containing up and down push buttons.

9. When a call is registered by momentary pressure by a car or landing button, that button shall become illuminated and remain illuminated until the call is answered. Illuminated buttons serve as a visual indication that a call has been registered and that the car will stop at that landing.

10.For group elevators, operation shall be automatic by means of the car and landing buttons.

Response to hall calls shall be achieved by computing response time for each registered hall call. The car with the least response time for total system dispatching optimization shall have the call assigned to it. Response computations for each hall call shall be continuously monitored and hall call assignments changed if a more suitable car is found.

a. Load weighing transducers shall be furnished on the elevator’s car platform or sling to operate at an adjustable fixed percentage of the load in the car (initially set at 60%). The car shall bypass hall calls when this device is actuated. This device shall also be used in determining load for hall call response analysis.

11. For simplex elevators, operation shall be automatic by means of the car and landing buttons.

Stops registered by the momentary actuating of the car and landing buttons shall be made in the order in which the landings are reached in each direction of travel after the buttons have been actuated. All stops shall be subject to the respective car or landing button being actuated sufficiently in advance of the arrival of the car at the landing to enable the stop to be made. The direction of travel for an idle car shall be established by the first car or landing button actuated.

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i. "UP" landing calls shall be answered while the car is traveling in the up direction and

"DOWN" landing calls shall be answered while the car is traveling in the down direction.

The car shall reverse after the uppermost or lowermost car or landing call has been answered, and proceed to answer car calls and landing calls registered in the opposite direction of travel.

ii. When the car, without registered calls arrives at a floor where both the "UP" and "DOWN" calls are registered, it shall initially respond to the hall call in the direction that the car was traveling. When no car call or hall call is registered for further travel in that direction, the car shall close its doors and immediately reopen them in response to the hall call in the opposite direction. The hall lantern shall indicate the changed direction when the doors reopen.

12.Communication: A permanent means of communication shall be provided between the elevator car and the control room.

13.Contacts shall be provided to indicate when the elevators are on Fireman’s Emergency Service, Hoistway Access, or Inspection Operation. Exact contact types to be coordinated with other Divisions.

14.A diagnostic testing device, or maintenance terminal, suitable for all troubleshooting and testing procedures related to the specific type of microprocessor control, shall be installed on this project and provided for the control system at the final acceptance. This diagnostic testing device, or maintenance terminal, shall conform to the operating procedures under the testing section of these specifications.

a. After successful testing of the diagnostic device, in conjunction with the microprocessor control, the testing device shall become the property of the Owner. The diagnostic testing device shall not become inoperative after a period of time requiring factory rehabilitation.

The contractor shall provide written certification that repair and support of the diagnostic tool components is readily available to the Owner in the future.

b. When repairs or replacement to the testing device become necessary prior to the final acceptance, the repairs, or replacement, shall be provided at no cost to the Owner.

15.Cross Dispatching Operation: Cross dispatching operation shall be provided during the renovation work to allow the new elevator control equipment to work in conjunction with the existing controls in the building. The panel shall provide an effective method to utilize the two

(2) risers of hall push buttons on the existing elevator group to provide basic dispatching of the elevators between the new and old groups. No temporary buttons shall be required during the renovation.

16.Additional special operations shall be included with the elevator control systems on the elevators as follows:

a. Independent Service: A key switch shall be provided in the car control station panel of each elevator which when actuated shall disconnect the elevator from the hall buttons and permit operation from the car buttons only. Close doors by constant pressure on desired destination floor button. Open doors automatically upon arrival at selected floor.

b. Top of Car Inspection Operation: Provide an operating fixture on top of the car containing continuous pressure "Up" and "Down" buttons for operating the elevator, an emergency stop button, a light and duplex receptacle, and a toggle switch which will make the top of car operating device operative.

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c. Fireman's Emergency Service: Furnish emergency operation to return the elevator to the main fire access Floor LL and return to the alternate Floor 1 when emergency is at main fire access floor. Furnish "in car" control of the elevator during emergency operation by means of a key switch in the car.

1) The appropriate signals from the fire alarm control system, as required to work in conjunction with the fireman’s phase I recall operation, shall be provided in the control room by other sections. Coordinate exact signal requirements with fire alarm contractor to ensure proper operation and code compliance.

d. Door Hold Operation: Provide a “Door Hold” button on the car control station panel on each service elevator such that when the button is activated it shall illuminate and the door dwell time shall increase to 30 seconds for the movement of carts on and off the elevator. The timing devices shall be adjustable to increase or decrease the additional door dwell time from zero to one hundred twenty seconds. The increased door time shall be canceled upon initiation of any car button. After increased door dwell time has expired the doors shall close and the elevator shall return to normal operation.

e. Power Pretransfer Operation: Each elevator is provided with emergency backup power and will receive a pretransfer signal. Upon receipt of the pretransfer signal an elevator at a floor shall remain at that floor with the doors open and an elevator in motion shall proceed to the next available floor and open its doors. After the transfer of power is complete normal operation shall be restored.

f. Emergency Power Operation: When the normal power fails an emergency power source, as supplied under other sections, is applied to each elevator disconnect switch for the Elevator Nos. 11-13, 21-23, and 24. A signal shall be provided by other sections from the emergency power transfer switch with wiring brought up to one elevator controller in the machine room to indicate to the elevator control system that emergency power is available for emergency use. Wiring between the passenger elevator machine room and service elevator machine room shall be provided by the contractor in this section.

Conduit between the machine rooms will be provided by other sections.

1) When the elevators are on emergency power operation the elevators shall operate such that all car calls and hall calls for all elevators shall be made ineffective and the cars are initially rendered inoperative.

2) Per group, one car at a time shall be automatically selected to return to the main recall floor. A selected car stopped between floors by the disruption of normal power will first run at low speed to the nearest floor and then return at high speed to the return floor. If the selected car does not start running within a predetermined time, the selection proceeds to the next car.

3) When the selected car arrives at the return floor the doors open. After the normal door open time, the doors close, the car is rendered in-operative, except for door reopening, and the selection proceeds to the next car. After all cars have returned to the first floor, one car per group is automatically selected to run on normal operation under emergency power. This car shall operate at full contract speed. The hall calls shall be made effective and the selected car responds to all hall calls and car calls as a normal operation.

4) An automatic and override selection key switch shall be provided at the fire command center to allow manual selection of Elevator Nos. 11 or 12 or 13 and 21 or 22 or 23 to run on normal operation. When the switch is turned to the automatic position, the automatic selection feature is made effective. Selection of a particular car to run on normal operation is done by turning the selection switch to the position that

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represents that car. The switch shall be made such that each position is interlocked from the other position and only one car is allowed to run at a time.

5) When normal power is restored all cars return to normal operation.

g. Car-To-Lobby Operation: The elevators shall be provided with car-to-lobby operation such that a key switch is located in the Floor 1 lobby for each elevator. When the key switch is activated, the respective elevator shall answer the existing car calls and return to Floor 1, open the doors, and shut down. When the key switch is turned to the off position, the elevator shall return to group operation.

h. Hoistway Access Key Switch Operation: Key operated switches shall be provided in the car and at the top and bottom landing for selecting hoistway access operation. When the inspection switch in the car is turned to the "ON" position, the car is put on inspection operation and can only be run by use of the switch at the top landing.

1) The car parks with the doors open and the closing circuit rendered inoperative. The inspector runs the car at low speed with the doors open by constant operation of the switch located in the elevator lobby.

2) The car can be run down from the top floor to gain access to the top of the car. The movement of the car initiated and maintained by the upper access switch shall be limited in the down direction to a travel not greater than the height of the car crosshead above the car platform, and limited in the up direction to the distance the platform guard extends below the car platform.

3) The car can be run up from the bottom landing to gain access to the pit. Travel is limited in the up direction by hoistway limit switches so that the maximum travel is the point where the bottom of the platform guard is even with the hoistway entrance header.

i. Emergency Communications System Failure Verification: For each elevator group, provide a means to verify operability of the telephone line(s) serving the respective elevator group's emergency two-way communications system. This system shall verify telephone line operability on a daily basis and provide for a visual and audible alarm when the system determines that the telephone line is not functioning. The audible and visual alarm shall be located near the firemen's emergency service phase I key switch.

The visual signal shall be an intermittent jewel illumination that shall not extinguish until the telephone line is functional. The audible signal shall be 10 dBA above ambient noise, but shall not exceed 80 dBA, as measured from the phase I recall key switch location.

The audible alarm shall sound until authorized personnel silence it or until the telephone line is made functional. The means to silence the alarm shall be accessible only to authorized personnel. This system shall meet Elevator Code Requirements.

j. Elevator Monitoring System: The contractor shall provide a microprocessor based elevator monitoring system in the Security Office on Floor 1. The system shall be capable of monitoring and storing elevator performance, elevator status, security features, fault diagnostics, traffic analysis, and report generation. The functions shall include, but not be limited to, the capability to change the door open and close times, acceleration / deceleration rates, elevator door dwell times, hall lantern pre call activation times, security car and corridor call lockouts per elevator & floor, up peak, down peak, load weighing bypass, and pre-dispatch car load capabilities.

1) Communication between the elevator control equipment and the elevator monitoring system in the Security Office on Floor 1 shall be accomplished through an Ethernet connection in each machine/control room. The contractor shall be responsible for

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connection from the elevator controller to the Ethernet port in each elevator machine/control room.

G. Governor & Tail Sheave Assembly: The existing governor, rope and tail sheave assembly shall be replaced with new and made to work in conjunction with the control equipment. The car safety shall be activated by the governor in the elevator machine room when overspeed occurs. When the car overspeeds the governor shall actuate an electrical switch prior to mechanical activation of the safeties which shall disconnect power to the motor and apply the brake. The electrical switch shall work in both directions per Elevator Code.

H. Machine Room Patching & Painting: The contractor shall patch any old access holes in the machine room walls or floor left from the old elevator equipment. Upon completion of all elevator work, the contractor shall paint the elevator floor with a quality floor paint, color to be gray.

2.3 CAR STRUCTURE

A. Platform, Car Frame & Safeties: The existing platform and car frame shall be retained. All components shall be thoroughly cleaned and lubricated.

1. The safeties for Elevator No. 24 shall be provided with new flex clamp type safeties. The safeties on the passenger elevators shall be retained and tested for proper operations.

2. The crosshead on top of each car shall be provided with a painted / stenciled identification number of at least 4 inches in height.

B. Platform Guard: The vertical face of the platform guards on the front of each elevator car underneath the cab entrances shall be extended to 48 inches, or a dimension that is maximized for the existing conditions or obstructions that are not reasonably able to be relocated. Provide a collapsible guard where the pit depth prohibits a full length guard. A sign shall be placed in the controller stating “PLATFORM GUARD SHALL BE SECURED IN HIGHEST POSITION BEFORE

TESTING.”

C. Car Roller Guides: The existing roller guides shall be retained. The guides shall be provided with new rollers, bushings, and springs. Properly adjust for a smooth quality of ride.

D. Top of Car Handrails: A standard railing, consisting of a top rail, intermediate rail, posts, and toe-board, shall be provided on the top of each elevator car where the horizontal distance between the edge of the car top and the adjacent hoistway enclosure exceeds 12 inches. The top rail shall have a smooth surface and the upper surface shall be located at a vertical height of 42 inches from the top of the car. The intermediate rail shall be located approximately half-way between the top rail and the top of the car. Posts shall be located not more than 7 feet, 10 inches apart. The toe-board shall be securely fastened to the posts and extend from the top of the car to a height not less than 4 inches.

E. Balance: After all components are assembled on the car structures the elevator cars shall be properly balanced and adjusted for alignment with the guide rails to equalize pressure on the car guides for a smooth ride upon completion of the renovation.

F. Cleaning: Upon completion of all modifications on top of the car, clean the car structure and top of the new elevator car of all grease, lint, and dirt.

2.4 HOISTWAY COMPONENTS

A. Guide Rails: The present guide rails shall be retained. Rails shall be cleaned and realigned as required to assure smoothness of ride.

ELECTRIC TRACTION ELEVATOR RENOVATION 142100-12

B. Hoistway Operating Devices: New normal terminal stopping devices shall be provided. When an emergency terminal stopping device is also required, it shall be furnished and the controller switches and circuitry arranged in accordance with the requirements of the Elevator Code.

C. Pit Stop Switches: New run/stop switches shall be provided in the pit and located at the pit access point for each elevator. The switches shall be located 18″ above the sill adjacent to the pit ladder.

D. Top of Car Operating Device: A new top of car operating device shall be provided and shall have the proper buttons, switches, and stop switch to operate the elevator on top of the car under inspection operation. The device shall be provided with a GFCI duplex receptacle and a guarded light providing 10 foot-candles of illumination at any maintainable point on the car top.

1. If the stop switch on the top of car operating device is not within reach of the hoistway landing, a second stop switch shall be provided on the car top that is within reach of the hoistway landing.

E. Wiring: All hoistway and machine room wiring shall be installed new. The wiring and electrical interconnections shall comply with the governing codes. Insulated wiring shall have flame retardant and moisture-proof outer covering, and shall be run in conduit, tubing or electrical wireways.

1. Wiring to connect the elevator system to the lobby status panel in the Fire Command Center on Floor 1 shall be provided by the contractor in this section. Conduit shall be provided by other sections.

F. Traveling Cables: Traveling cables shall be flexible, of a round construction, with a flame and moisture resistant outer cover, and shall be suspended to relieve strain on individual conductors.

Include the required number in addition to three (3) spare sets of shielded communication wires and car lighting circuits from the machine room to the car connection points on the elevator.

Provide 10% spare wires in traveling cable.

1. Wire meshing, or similar means, shall be provided behind the traveling cable, between the elevator hoistways, to prevent the traveling cable from rubbing, chaffing against hoistway or car items, snagging, or swaying into the adjacent hoistway.

2. Traveling cable shall include four (4) 16AWG shielded pair spares.

G. Oil Buffers: For elevators with oil buffers, the present oil buffers for the car and counterweight shall be retained as a means for retarding the movement of the car and counterweight at the bottom limits of travel. The buffers shall be drained, flushed and filled with new lubricants. The buffers shall be cleaned of rust and painted. The elevator number shall be painted on each buffer, a minimum of 4” high.

H. Spring Buffers: For elevators with spring buffers, the present spring buffers for the car and counterweight shall be retained as a means for retarding the movement of the car and counterweight at the bottom limits of travel. The buffers shall be cleaned of rust and painted. The elevator number shall be painted on each buffer, a minimum of 4” high.

I. Counterweights: The present counterweights shall be retained. Filler weights shall be added or deleted to provide proper counterbalance upon completion of the renovation. Cars shall be counterbalanced after all new equipment has been installed and aesthetic modifications to the elevator cabs have been completed by the Contractor. Weights shall be secured to remove any rattling during course of travel. All weights shall be metal, no concrete components will be accepted.

ELECTRIC TRACTION ELEVATOR RENOVATION 142100-13

1. The existing counterweight roller guide assemblies shall be retained. The assemblies shall have all rollers replaced and the assemblies cleaned, lubricated, and adjusted with the rails to provide a smooth quality of ride upon completion of the renovation.

2. The Elevator No. 24 counterweight shall be provided new spring loaded, counterweight roller guide assemblies and adjusted for a smooth ride upon completion of the installation. Rollers shall be a minimum of 3 inch in diameter.

3. Provide a maximum counterweight runby sign in the elevator pit for each elevator.

J. Suspension Means: The existing hoist ropes shall be replaced with new. The hoist ropes shall be traction steel of size, construction, and number to insure proper operation of the elevator and give satisfactory wearing qualities. All ropes shall consist of at least eight strands wound about a hemp core center. Ropes shall be minimum ½ inch in diameter.

K. Pit Ladders: Provide new pit ladders on the interlock side of the pit access point. Ladders to be constructed of structural members and fixed in the elevator pit. Ladders shall be provided with an interlocked guard that prevents access to the ladder with the guard in the closed position and prevents movement of the elevator with the guard open. The guard shall be openable without use of any tools, special or otherwise. New ladders to meet requirements of Elevator code.

L. Painting: Upon completion of all modifications in the elevator pits, fill in any old holes from removal of old equipment and paint the floors with two (2) coats of a quality, low VOC, machine paint per Specification Section 09, color to be gray.

2.5 DOOR OPERATING SYSTEM

A. Door Operators: Doors on the car and at the hoistway entrances shall be power operated by means of a new GAL MOVFR door operator mounted on top of the car with all new associated operating linkages, door clutches, and gate switches. The motor shall have positive control over door movement for smooth operation. A new infrared car door safety device shall be used to cause instant reopening should an obstruction be detected during the closing cycle.

1. Door operation shall be automatic at each landing with door opening being initiated as the car arrives at the landing and closing taking place after expiration of a time interval. A car door electric contact shall prevent starting the elevator away from the landing unless the car door is in the closed position.

2. Door close shall be arranged to start within a time consistent with ADA/accessibility code requirements. The time interval for which the elevator doors remain open when a car stops at a landing shall be independently adjustable for response to car calls and response to hall calls. The door dwell time interval shall be reduced to 0.5 seconds with the initiation of any car floor button.

B. Interlocks & Closers: A new approved positive interlock shall be provided for each hoistway entrance which shall be made to work in conjunction with the new door operators. The interlocks shall prevent operation of the elevator unless all doors for that elevator are closed and shall maintain the doors in their closed position while the elevator is away from the landing.

1. New closers shall be provided. The closers shall be adjusted to automatically close the hoistway doors when the car is away from the landing per Elevator Code requirements.

2. Operable hoistway door unlocking devices shall be provided at all hoistway landings to permit access to the top of the car and pit areas. The unlocking devices shall be actuated by a special key and access holes in hoistway doors shall be protected by a barrel type escutcheon plate. The escutcheon tubes shall be naturally finished or stainless steel to match

ELECTRIC TRACTION ELEVATOR RENOVATION 142100-14

the door panel finish. Abandoned access holes shall be plugged with a material matching the door panel finish.

C. Car Door Safety Device: A new infrared, door protection device shall be provided and made to work in conjunction with the new control equipment. Operation for the door protection devices to be as follows:

1. The doors shall be prevented from closing from their full open position if a person or object comes within the zone of detection. The detection zone shall move with the doors and if a person or object enters the zone as the doors are closing, the doors shall reverse and reopen prior to physical contact. The doors shall reclose after a minimal time interval.