MD1872ZZ_4700_River_Rd_GSA_Final_Elevator_Study.pdf

Ashland Industrial Services Training. Inspections. Consulting. Project Management.

1 North Main Street Shrewsbury, PA 17361

717.347.5616

100% FINAL ELEVATOR STUDY

FOR

UNITED STATES DEPARTMENT OF AGRICULTURE

FEDERAL BUILDING MD1872ZZ

4700 RIVER ROAD

COLLEGE PARK, MD 20740

December 30, 2016

Rufus R. Frazier, GSA PM

USDA

Federal Building MD1872ZZ College Park, MD 2

SCOPE OF WORK

Ashland surveyed six (6) elevators at the referenced property during the week of October 10, 2016. The purpose of the audit and systems analysis is to develop scopes, cost estimates, time schedules, phasing for the interim repair projects and plan for the modernization projects. Ashland also identifies the primary equipment, determines the maintained condition of major components, records operating performance levels and evaluates the vertical transportation based on applicable industry and code standards.

Our report is arranged in sections as follows:

EXECUTIVE SUMMARY .............................................................................................................. Page 3

SECTION I - EQUIPMENT EVALUATION

- Vertical Transportation Systems Profile............................................................ Page 6

- Life Cycle Analysis ........................................................................................... Page 7

- Codes and Standards Review............................................................................. Page 8

- Americans with Disabilities Act Compliance Survey ....................................... Page 9

SECTION II - MAINTAINED CONDITION EVALUATION

- Itemized Deficiencies ...................................................................................... Page 15

- Maintenance Contract Review......................................................................... Page 16

- Recorded Operating Performance.................................................................... Page 17

SECTION III - SCOPE & PRIORITIES

- PE1 through PE6.............................................................................................. Page 21

SECTION IV - PHOTOGRAPHS & KEY PLAN

- Photographs ........................................................................................... Attachment A

- Schedule..................................................................................................Attachment B

- Key Plan..................................................................................................Attachment C

College Park, MD 3

EXECUTIVE SUMMARY

The elevator controllers, motor generator (MG) sets and DC hoist motors are old technology and OBSOLETE by design. Replacement parts are non-existent with spare parts that consist of only rebuilt components. The manufacture, Northern Elevator is no longer in business so technical support is limited to the worn and incomplete electrical prints that were found in the machine room. Replacement of the elevator controllers are immediately necessary in order to prevent extended shutdowns that could last weeks or even months. A modernization will remove the MG sets and be replaced with Variable Voltage Variable Frequency (VVVF) drives. The DC hoist motors will be replaced with AC hoist motors and the overall new elevator system will be more energy efficient than the current configuration.

The building is located at 4700 River Road, College Park, MD, 20740. It is a government owned building. It is currently occupied entirely by United States Department of Agriculture (USDA). General Services Administration (GSA) is the authority for the operations and maintenance of the building. The building has an area of 337,500 Gross SF, 337,500 Rentable SF and 300,000 Usable SF. The building has six (6) levels. These are floors 1 through 6. The building was built in 1995.

Ashland Industrial Services performed a comprehensive survey of the elevator equipment at the referenced property during the week of October 10, 2016. The office building’s vertical transportation is provided by two (2) passenger groups of three (3) overhead geared traction passenger elevators (PE1 – PE3 & PE4 – PE6). One passenger group is located on the West side of the building (PE1 – PE3) and the other passenger group is located on the East side of the building (PE4 – PE6). The passenger elevators serve six (6) front openings (1-6), have a capacity of 3500 pounds and operate at 350 feet per minute.

PE1 in the West side of the building has a rear service opening on the first floor, utilized by maintenance and building staff therefore PE1 has seven (7) total openings.

All passenger elevators are operating between 10-15% below contract speed. This is due to the elevator controller’s inability to control the elevator coming into/out of each landing as it travels through the hoistway. It is typical, based on this type of equipment that the elevators are “slowed down” in order not to miss floor levels or cause additional shutdown issues, more than are occurring now. Door operating times, both in the open and close cycles, are excessively “long” and are also directly related to the type of “open loop” car door operator system that is currently being utilized. A controller and car door operator upgrade would eliminate these issues and improve elevator reliability and performance, based on industry standards.

Realizing that preventive maintenance is an ongoing process, Ashland’s survey represents a snap shot on a specific day and time. Overall, the equipment is operating within code with evidence of preventive maintenance being performed on a sporadic basis. The machine room spaces are relatively clean and the areas are organized. The deficiencies found can be addressed during regular preventive maintenance procedures such as hoistway door adjustments and replacement of incandescent light bulbs. The HVAC system in each machine room was operating as designed. In anticipation of the modernization in the next

College Park, MD 4 couple of years, it is recommended that the HVAC system in each machine room be replaced during the elevator modernization project.

Of particular concern is that Ashland also found outdated paperwork in each elevator machine room that illustrates that the annual safety inspections, as required by ASME A17.1 Code, have not been completed since July, 2015, making the tests overdue by more than four (4) months. These tests should be scheduled and completed as soon as possible. Record keeping of maintenance procedures and fireman’s service monthly testing are not current or in some cases completely missing.

Incandescent bulb technology requires more frequent replacement when compared to LED type bulbs. In order to improve reliability Ashland recommends that a complete modernization is undertaken within the next 1-2 years which would include new microprocessor controls, removal of the motor generator sets to be replaced with VVVF AC drives, new operating fixtures and new cab finishes.

All pit ladders will require replacement in order to provide a “grab bar” at proper height; most do not have a grab bar at all. Pit lighting appears to be adequate and all pits were “dry” with little to no evidence of water/moisture intrusion.

The six (6) passenger elevators (PE1 – PE3, PE4 – PE6)) are original as installed in 1995 with applied panels, stainless steel reveals and egg crate drop ceilings. The interiors are in good condition for their age but are starting to show wear from normal use. The rear wall of each cab has a stainless steel flat bar stock type hand rail. Ventilation of all cabs is achieved by a standard cab fan mounted on top of each elevator cab shell and appears to be adequate. The finishes surrounding the call buttons are painted drywall and the hall lanterns are above the elevator entrance frames, finished in brushed stainless steel.

College Park, MD 5

SECTION I - EQUIPMENT EVALUATION

College Park, MD 6

VERTICAL TRANSPORTATION SYSTEMS PROFILE

Building: 4700 River Road (USDA)

PE1 - PE3 PE4 - PE6

Capacity 3,500 3,500

Loading (Pass/Serv/Freight) Passenger Passenger

Rated Speed (fpm) 350 350

Roping 1 to 1 1 to 1

Floors Served 6 6

Floor Identification 1 to 6 1 to 6

1R (PE1)

Machine Type: OH Geared OH Geared

Control Type: Northern IPC Northern IPC

Sequence of Operation 3 car group 3 car group

Door Configuration SSCO SSCO

Car Door Operator Northern Northern Operating/Signal Equipment Incandescent Incandescent

Door Entrance Size 42" w X 84" h 42" w X 84" h

Car & Cwt Buffers Oil Oil

Car Safeties Northern Northern

Overspeed Governor Northern Northern

Power Supply 460V 3 PH 460V 3 PH

O.E. M. U.S. Elevator U.S. Elevator

Date of Installation 1995 1995

Modernization Contractor N/A N/A

Date of Modernization N/A N/A

Present Service Company Quality Elev. Quality Elev

3 or 5 Year Full Load Test No Records No Records Annual Safety Inspection Jul-15 Jul-15

College Park, MD 7

LIFE CYCLE ANALYSIS – TRACTION SYSTEMS

Elevator I.D.: PE1 – PE3, PE4 – PE6 Date: 10/11/16

Component/System

Projected Design

Life (Years)

Present Age

(Years)

Remaining Useful

Life (Years)

Condition Comments Recommended

Action

MACHINE ROOM

1. Hoisting Machinery, Sheaves & Bearing 50-75 21 29 Good

Test & Rebuild as new

2. Drive Motor(s) 50-75 21 29 Good New A/C motors under mod

3. Power Drives 30-50 21 9 OBSOLETE Replace under mod

4. Signal Controls (Selectors)

20-25 21 0 OBSOLETE Replace under mod

5. Motion Controls 20-25 21 0 OBSOLETE Replace under mod

HOISTWAY AND PIT

1. Wire Ropes (Hoist, Comp. & Governor) 20-25 21 0 Good Replace under mod

2. Guide Rails 75+ 21 54+ Good Clean, align, tighten

3. Mechanical Safety Equipment & Counterweight

75+ 21 54+ Good Clean & lubricate

4. Hoistway Door Equipment

25-30 21 4 Good Clean & lubricate

CAR EQUIPMENT

1. Car Door Equipment 20-25 21 0 OBSOLETE Replace under mod

2. Cab Enclosure 20-30 21 0 Fair Replace under mod

3. Car Frame 75+ 21 54+ Good No action required

4. Car Safety 75+ 21 54+ Good Clean & lubricate

OPERATING/SIGNAL EQUIPMENT

1. Fixtures 20-25 21 0 Fair Replace under mod

College Park, MD 8

CODES AND STANDARDS REVIEW – ELEVATORS ONLY

All elevators in the 4700 River Road Building were installed in 1995. The elevators have never been upgraded and are original as installed in 1995. The systems do not meet the latest code regulations in the following areas:

• Record Keeping - Data Tags / Testing Requirements (Annual Safety Inspections)

• Emergency Communication - Repair non-functioning telephone (PE5)

Note: Annual load tests are overdue for all traction elevators in the building. Record keeping is inconsistent with the last recorded preventive maintenance visit occurring in June, 2016.

Annual Safety Inspections (Cat 1) All test are performed at inspection speed with no load inside the elevator.

Manually activate the safeties, governor, emergency final limits, over speed switch, door locks, gate switches, car door restrictors, stop switches and buffer switches. Activate Fireman’s Service Phase I & II. Test emergency lighting / alarm / communications. Test the door protection devices and closing force. Unintended movement device is also verified.

5 year full-load (Cat 5): Same scope of work as the Cat 1 no load test. In addition, while elevator is operating at contract speed. Conduct a full load (elevator capacity) safety drop test, 125% capacity elevator brake test and a full load buffer test. Manually test the governor activation speeds and governor pull through.

What the 5 year test involves and what is expected at the end of the test? The elevator is loaded to maximum designed capacity and with the elevator traveling in the down direction; the speed governor is activated to put the elevator on emergency stop. The distance of slide on the main elevator rails is then measured for tolerance as well as the level of the elevator itself after the emergency brakes (safety) are applied and the car has come to a complete stop. After this is completed, the elevator is further tested in the down direction (under full load, contract speed) and strikes the elevator pit buffer. The elevator then is lifted, and the buffers (oil type) must return to original position within 90 secs. Additional weight is added (25% of capacity) to the cab. The elevator is tested again in the down direction and must stop within normal leveling tolerances between the car and hoistway entrance sills. All tests have specific tolerances set by ANSI A17.1 in relation to the elevator design; type, speed and capacity

College Park, MD 9

THE AMERICANS WITH DISABILITIES ACT (ADAAG)

SURVEY OF EXISTING ELEVATOR SYSTEMS

ELEVATOR(S) IDENTIFICATION: PE1 – PE6 DATE: October 12, 2016

S = SATISFACTORY, U = UNSATISFACTORY, R = READILY ACHIEVABLE, NA = NOT APPLICABLE

A.D.A.AG

SEC.

ITEM TECHNICAL REQUIREMENTS S U

EXISTING

CONDITION/ NOTES

R

4.10.1 General A. Elevators shall comply with ASME/ANSI

A17.1-1990, Safety Code for Elevators and Escalators.

X Per installation date of

B. Freight elevators shall not be considered as meeting the requirements of this section unless the only elevators provided are used as combination passenger and freight elevators for the public and employees.

4.10.2 Automatic

Operations

A. Elevator operation shall be automatic. X

B. Each car shall have a self-leveling feature that will automatically bring the car to floor landing within a tolerance of ½" under rated loading and zero loading conditions.

X

C. This self-leveling feature shall be automatic and independent of the operating device and shall correct for undertravel and overtravel.

X

4.10.3 Hall Call

Buttons

A. Shall be centered at 42" above floor. X

B. Shall have visual signals to indicate when call is registered and answered. X

C. Minimum size 3/4" in the smallest dimension. X

D. "UP" button shall be above "DOWN" button.

X

E. Buttons shall be raised or flush. X

F. Objects mounted beneath buttons shall not project more than 4" from the wall.

N/A

College Park, MD 10

A.D.A.AG

SEC.

ITEM TECHNICAL REQUIREMENTS S U EXISTING CONDITION/ NOTES R

4.10.4 Hall

Lanterns

A. A visible and audible signal shall be provided at each hoistway entrance to indicate which car is answering a call.

X

B. Audible signals shall sound once for "up", twice for "down", or shall have verbal annunciators that say "up" or "down".

X

C. Visible signals shall have the following features:

1. Fixtures shall be mounted with centerlines at least 72" above the lobby floor.

X

2. Visual elements shall be at least 2 ½" in the smallest dimension. X

3. Signals shall be visible from the vicinity of the hall call button. X

D. In-car lanterns, conforming to the above requirements, shall be acceptable.

N/A

4.10.5 4.30.4

Characters On Hoistway Entrances

A. All elevator hoistway entrances shall have raised and Braille floor designations provided on both jambs.

X

B. Characters shall be centered 60" above finish floor. X

C. Characters shall be 2" high, raised 1/32", upper case, sans serif or simple serif type, and shall be accompanied by Grade 2 Braille.

X

4.10.6 4.16(3)(i)

Door Protective and Reopening Device

A. Elevator doors shall open and close automatically. X

B. Door shall have a reopening device that will stop and reopen a car door if an object or person obstructs the door.

1. The device shall be capable of completing these operations without requiring contact for an obstruction passing through the opening at heights of 5" and 29" above finish floor.

X

2. Door reopening device shall remain effective for at least 20 seconds. After such interval, doors may close in accordance with ASME/ANSI A17.1- 1990.Rule 112.4 and Rule 112.5 closing force provisions.

X

College Park, MD 11

A.D.A.AG

SEC.

ITEM

TECHNICAL REQUIREMENTS S U EXISTING CONDITION/ NOTES R

4.10.7 Door and

Signal Timing for Hall Calls

A. The minimum acceptable time from notification that a car is answering a call until doors begin to close shall be calculated as follows:

X

T = D/(1.5 ft/s) or T=D/(445 mm/s) T = time in seconds D = distance (in ft or mm) from point

60" directly in front of farthest call button to centerline of hoistway door.

The minimum acceptable notification time shall be 5 seconds.

4.10.8 Door Delay

for Car Calls

A. The minimum time for elevator doors to remain fully open in response to a call shall be 3 seconds.

X

4.10.9 4.16(3)(ii)

Floor Plan of Elevator Cars

Shall provide for wheelchair users to enter the car, maneuver within reach of controls and exit the car.

A. Door shall provide 36" clear minimum.

X

B. Cab Depth: 51" minimum, with 54" minimum from rear of cab to inside face of door.

X

C. Cab Width: side opening door - 68" minimum; Center opening door - 80" minimum.

X

D. Clearance between car platform sill and edge of hoistway landing shall be 1 1/4" maximum.

X

E. Alterations/Existing Condition: Where existing plan configuration or technical infeasibility prevent use of specified cab sizes, dimensions may be reduced as required. However, in no case shall the inside car dimensions be less than 48" by 48".

N/A

F. Equivalent facilitation may be provided with a cab of different size when usability can be demonstrated and when all other items required to be accessible comply with this section.

N/A

College Park, MD 12

A.D.A.AG

SEC.

ITEM

TECHNICAL REQUIREMENTS S U

EXISTING CONDITION/

NOTES

R

4.10.10 Floor

Surfaces

A. Shall be firm, stable and slip-resistant X

B. If carpet is used, it shall have the following features: N/A

1. Shall be securely attached;

2. A firm cushion pad or backing (or none);

3. A level loop, textured loop, level cut pile or level cut/uncut pile texture;

4. Maximum pile thickness: ½”

5. Exposed edges fastened to floor surfaces with carpet edge trim.

4.10.11 Illumination

Levels

A. Illumination level at controls, platform and threshold and landing shall be minimum 5 footcandles.

X

4.10.12 (1) Car Controls:

Buttons

A. Size 3/4" minimum in least dimension. X

B. Buttons shall be raised or flush. X

4.10.12 (2) Car Controls:

Control Indicators

C. All control buttons shall be designated by Braille and by raised standard alphabet characters for letters, Arabic symbols for numerals, or standard symbols are required in ASME/ANSI 17.1-1990.

X

D. Characters shall be 5/8" to 2" high, raised 1/32", upper case, sans serif or simple serif type, and shall be accompanied by Grade 2 Braille.

X

E. All raised designations shall be immediately left of the button to which they apply. X

F. Floor buttons shall be provided with visual signals which light when each call is registered and extinguish when each call is answered.

X

4.10.12 (3) Car Controls:

Height

G. All floor buttons shall be maximum 54" above floor where side approach is provided, 48" maximum where forward approach is required.

X

H. Emergency controls (including alarm and stop) shall be grouped at bottom of panel, with centerlines 35" minimum above floor.

College Park, MD 13

A.D.A.AG

SEC.

ITEM

TECHNICAL REQUIREMENTS S U EXISTING CONDITION/ NOTES R

4.10.12 (4) Car Controls:

Location

I. Controls shall be located on a front wall if cars have center opening doors and at either a side wall or the front wall if cars have side opening doors.

X

4.10.13 Car Position

Indicators

A. A visual car position indicator shall be provided above the car control panel or above the door.

X

B. As the car passes or stops at a floor, the corresponding numbers shall illuminate and an audible signal shall sound.

X

C. Numerals shall be a minimum of ½" high.

X

D. Audible signal shall be no less than 20 decibels with frequency no higher than 1500 Hz.

X

E. An automatic verbal announcement of the floor number may be substituted for the audible signal.

N/A

4.10.14 Emergency

Communic-ations

Emergency two-way communication system between the elevator and a point outside the hoistway shall comply with ASME/ANSI A17.1-1990

A. Highest operable part of system shall be maximum 48" from floor. X

B. System shall be identified by raised symbol and lettering located adjacent to the device. X

C. Characters shall be 5/8" to 2" high, raised 1/32", upper case, sans serif or simple serif type, and shall be accompanied by Grade 2 Braille.

X

D. If system uses a handset, minimum cord length shall be 29".

X

E. If located in a closed compartment, door shall be operable with one hand, shall not require tight grasping, pinching, or twisting of the wrist, and shall require a maximum force of 5 lbf.

X

F. The emergency communication system shall not require voice communication.

(Voice only system is inaccessible to persons with speech or hearing impairments.)

College Park, MD 14

SECTION II - MAINTAINED CONDITION EVALUATION

College Park, MD 15

ITEMIZED MAINTENANCE DEFICIENCIES

Machine Room: PE1 – PE3

1. Record keeping is not up to date. Provide maintenance and fireman’s service testing records per

Code.

2. Annual no-load tests are overdue, last performed in July, 2015.

3. Remove used parts and organize remaining spare parts.

Machine Room: PE4 – PE6

1. Record keeping is not up to date. Provide maintenance and fireman’s service testing records per

Code.

2. Annual safety inspections are overdue, last performed in July, 2015.

3. Remove used parts and organize remaining spare parts.

4. Machine room door does not lock, repair/replace broken lock set.

General Observations:

1. Hoistway/car door maintenance is overdue.

2. Replace worn car door gibs on PE2.

3. Adjust hoistway door eccentrics to eliminate gaps between door panels when forced open.

4. Repair hall position indicator on PE4

5. Repair non-operational emergency phone in elevator car of PE5

6. Repair damaged/loose hoistway door panel astragals on PE2.

7. Adjust door open duration upon activation of electronic edge detector to within industry standards, refer to Recorded Operating Performance chart.

College Park, MD 16

MAINTENANCE CONTRACT REVIEW

Current Contract Provisions:

THESE DOCUMENTS HAVE NOT BEEN PROVIDED TO ASHLAND INDUSTRIAL SERVICES

Recommendations:

College Park, MD 17

RECORDED OPERATING PERFORMANCE

SINGLE SPEED CENTER

OPENING DOORS (42” wide)

ELEV.

NO.

PE2

ELEV.

NO.

PE3

ELEV.

NO.

PE4

ELEV.

NO.

PE5

ELEV.

NO.

PE6

ACCEPTABLE

STANDARDS

FOR THIS

EQUIPMENT

A. SPEED - UP DIRECTION

(FPM) 293* 298* 280* 284* 277* 333 – 367

B. SPEED – DOWN DIRECTION

(FPM) 290* 299* 280* 282* 279* 333 – 367

C. DOOR OPENING TIME

(SEC) 2.7* 2.5* 3.8* 2.2* 2.4* 1.4 – 1.6

D. DOOR CLOSING TIME

(SEC) 3.2* 3.4* 3.9* 3.1* 3.2* 2.8 – 3.0

E. DOOR OPEN DURATION -

CAR CALL (SEC)

6.0 6.1 4.7 5.0 5.5 3.0 minimum

F. DOOR OPEN DURATION -

HALL CALL (SEC)

6.1 5.7 5.5 6.1 6.0 5.0 minimum

G. DOOR OPEN DURATION -

AFTER PROTECTIVE

SHIELD IS RE-

ESTABLISHED (SEC)

6.0* 6.2* 6.1* 6.3* 6.5* .5 to 1.0

H. FLOOR TO FLOOR

PERFORMANCE TIME

(SEC)

15.7* 17.8* 18.2* 15.8* 16.5* 11.5 – 12.5

I. START (milli g) Up/Down 33/72 60/52 42/40 61/50 24/21

J. ACCEL (milli g) Up/Down 62/73 81/80 102/100 73/70 84/81

K. DECEL (milli g) Up/Down 91/93 90/94 91/90 82/84 80/83

L. STOP (milli g) Up/Down 31/32 30/30 34/33 32/30 33/42

M. JERK (milli g) Up/Down 5.1/9.9 12.8/9.5 7.2/7.2 17.0/9.5 5.4/4.9 15.0 max

N. STOPPING ACCURACY

(INCHES)

1/4 1/4 1/4 1/4 1/4 ± ½

O. CAR DOOR CLOSING

PRESSURE (LBS)

28 27 26 25 24 30 Maximum

* DENOTES UNACCEPTABLE CONDITION BASED ON STANDARDS SPECIFIED.

N/E - denotes "No Evaluation" of referenced standard performed.

N/A - denotes standard is "Not Applicable" to these systems.

N/O - denotes "Not Operative" at time of evaluation.

College Park, MD 18

RECORDED OPERATING PERFORMANCE

SSCO; 42” wide (front) SSSO; 42” wide (rear)

ELEV.

NO.

PE1

(front)

ELEV.

NO.

PE1

(rear)

ACCEPTABLE

STANDARDS

FOR THIS

EQUIPMENT

A. SPEED - UP DIRECTION

(FPM) 305* N/A 333 – 367

B. SPEED – DOWN DIRECTION

(FPM) 314* N/A 333 – 367

C. DOOR OPENING TIME

(SEC) 4.0* 4.2*

1.4 – 1.6 (front)

2.0 – 2.2 (rear)

D. DOOR CLOSING TIME (SEC) 5.1* 5.1*

2.8 – 3.0 (front)

4.0 – 4.2 (rear)

E. DOOR OPEN DURATION -

CAR CALL (SEC)

5.8 5.5 3.0 minimum

F. DOOR OPEN DURATION -

HALL CALL (SEC)

5.4 6.2 5.0 minimum

G. DOOR OPEN DURATION -

AFTER PROTECTIVE

SHIELD IS RE-

ESTABLISHED (SEC)

6.1* 6.0* .5 to 1.0

H. FLOOR TO FLOOR

PERFORMANCE TIME (SEC) 19.1* N/A 11.5 – 12.5

I. START (milli g) Up/Down 62/91 N/A

J. ACCEL (milli g) Up/Down 101/102 N/A

K. DECEL (milli g) Up/Down 120/121 N/A

L. STOP (milli g) Up/Down 54/51 N/A

M. JERK (milli g) Up/Down 6.4/10.3 N/A 15.0 max

N. STOPPING ACCURACY

(INCHES)

1/4 1/4 ± ½

O. CAR DOOR CLOSING

PRESSURE (LBS)

26 24 30 Maximum

* DENOTES UNACCEPTABLE CONDITION BASED ON STANDARDS SPECIFIED.

N/E - denotes "No Evaluation" of referenced standard performed.

N/A - denotes standard is "Not Applicable" to these systems.

N/O - denotes "Not Operative" at time of evaluation

College Park, MD 19

DEFINITIONS AND MEASUREMENTS

OF ITEMS LISTED IN

RECORDED OPERATING PERFORMANCE

A&B. Speed is the rate at which the measured unit travels. The speed has been measured during a complete run of the unit and was taken as the highest sustained value recorded using a hand held tachometer.

C. Door Opening Time is defined as the start of car doors opening until they are fully opened. The time was measured in seconds from the moment the car doors start to open until the car doors are fully open (i.e., motion stops).

D. Door Closing Time is defined as the start of the car doors closing until fully closed. The time was measured in seconds from the moment the car doors start to close until the car doors are fully closed (i.e., motion stops).

E. Door Open Duration for a Car Call is defined as the length of time the car doors remain fully open in response to a car call without anyone passing through the protective shield. This time was measured in seconds from the stop in the open motion of the car doors until the start of the closing motion of the car door.

F. Door Open Duration for a Hall Call is defined as the length of time the car doors remain fully open in response to a lobby call without anyone passing through the protective shield. This time was measured in seconds from the stop in the open motion of the car doors until the start of the closing motion of the car doors.

G. Door Open Duration After Protective Shield is Re-Established is defined as the length of time the car doors remain open after an object has passed through the protective shield until the car doors begin to close. This time was measured in seconds from the stop in the motion of the car doors until the re-start of the closing motion of the car doors.

H. Floor to Floor Performance Time is defined as the time required for the movement of a car between two (2) floors, including the door closing and effective door opening for passenger transfer. The time was measured in seconds from the start of door closing at one floor until the car was stopped (within stopping accuracy) at the next floor with the doors opened for passenger transfer.

I. Start Up/Down (milli g) is measured at the beginning of car motion.

J. Accel Up/Down (milli g) is the measure of acceleration immediately after the Start measure.

K. Decel Up/Down (milli g) is the measure of transition from high speed to leveling speed or stop.

L. Stop Up/Down (milli g) is measure of the stopping rate to the floor level.

M. Jerk Up/Down (milli g) is a term used to describe a change in acceleration. In mathematical terms one jerk is equal to a change in acceleration of one foot per second per second, in one second of time. One jerk equals a rate change of .03108 g’s in one second. Optimal jerk rate is 15.0 or less.

N. Stopping Accuracy is the distance between the car and hoistway sills when the car is stopped at a floor and was measured as the vertical distance (in inches) between the horizontal planes of the car and hoistway sills when the car is stopped at a floor.

O. Car Door Closing Pressure is the amount of force required to hold a door from closing after stalling the door, by external means, at about 1/3 of the closing distance. The door pressure was measured in pounds and was recorded upon removal of the physical block.

College Park, MD 20

SECTION III – SCOPE & PRIORITIES

College Park, MD 21

Design Intent

As part of Ashland’s recommendations for upgrades, modernization and/or refurbishment of the elevator equipment, the elevator equipment rooms/spaces have been evaluated, including components such as lighting, HVAC, fire protection, emergency power interface, enclosures, etc. The scope of work for each grouping of elevators requires that the elevator systems and areas comply with GSA Standards / Guidelines / Alerts and all current Codes. The design will bring the elevators up to the latest editions of ASME A17.1 Safety Code for Elevators and Escalators, A17.3 Safety Code for Existing Elevators and Escalators, A18.1 Safety Standard for Platform Lifts and Stairway Chairlifts, ANPA 70 National Electric Code and NFPA 101 life safety codes.

Phasing of the elevator modernization should begin with the east end three (3) car group (PE4 – PE6), completing one (1) elevator at a time. Upon completion of the east end elevators proceed with the west end group (PE1 – PE3).

Passenger Elevators PE1 – PE6

Rebuild the U.S. Elevator overhead geared traction machines, provide new elevator controllers with VVVF drives, install “rope gripper” for unintended movement, provide new hoist and governor ropes, new hoistway wiring and traveling cables, new car and counterweight roller guides, new rollers and safety interlocks, new car door operator (closed loop), new car door panels and ventilation, new car top inspection station, new hall and car operating fixtures with LED lamps, paint entrance frames, new electronic door edge detector, new cab interior applied panels, ceiling and flooring. Retain car and counterweight guide rails, refurbish deflector sheaves and governor cable tension assembly, clean hoistway entrance sills and car sill, refurbish hoistway door panels, retain car frame and platform, modify lobby control panel. Provide new pit ladders.

Building related work will be required as follows: Replace main power supply and distribution panel in its entirety, replace all circuit control devices with new components, make all elevator control connections to emergency power transfer switch and lobby control station, refurbish machine room area lighting, provide new HVAC unit(s) in elevator machine room, provide new pit and hoistway lighting. Paint machine rooms and hoistways as required.

College Park, MD 22

SECTION IV – PHOTOGRAPHS, SCHEDULE & KEY PLAN

See Attachments A, B & C

College Park, MD 23

ATTACHMENT A

PHOTOGRAPHS

Passenger Elevators PE1 – PE3

Northern Elevator geared traction machine Northern Elevator solid state elevator controller

Main line power supply Car operating panel PE1

College Park, MD 24

Passenger Elevators PE1 – PE3 (cont.)

Car door operator Typical hall station fixture

Hoistway door panel eccentrics require adjustment Typical elevator pit

College Park, MD 25

Passenger Elevators PE4 – PE6

Northern Elevator geared traction machine Northern Elevator solid state elevator controller

Typical motor generator set PE4 Main line power supply

College Park, MD 26

Passenger Elevators PE4 – PE6 (cont.)

Typical car operating panel Typical hall station fixture

Typical entrance configuration Typical interior cab finishes (all cars)

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