Vault 4 5 CRAC Units Mechnical Dwgs date 6-26-2026.pdf

VAULT 2

VAULT 3VAULT 8

VAULT 6

VAULT 5

VAULT 4

VAULT 10

V9-E V9-D

V9-B

V9-C

V9-A

VAULT 7

VAULT 1

AREA OF WORK

M001

MECHANICAL

COVER

SHEET

NO SCALE

KEYPLAN

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SRBR No: 25111-45

PRICING SET 6/26/2026

“Professional Certification. I hereby certify that these documents were prepared or approved by me, and that I am a duly licensed professional engineer under the laws of the state of , License No. , Expiration Date: .”

PE905594

8-31-2026

Washington DC

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25111-45

6-26-2026

Ex.14"x10"

Ex.14"x12"

12"Ø

CRAC-4-A

CRAC-5-A

CRAC-5-B

VAULT 5

VAULT 4

1"

CD

CD

C D

1"

4"

C W

CW

CW

4"

4"

C H

RC

H

S

CHR

CHS

2"

2"

ALL PIPING SHOWN IS LOCATED

BELOW THE RAISED FLOOR

4"

CD

C D

C W

CW

C H

S C

H R

4"

4"

3 3

ALL PIPING SHOWN IS LOCATED

BELOW THE RAISED FLOOR

VAULT 5

VAULT 4

SCALE: 1/4" = 1'-0"

VAULTS 4 AND 5 PLAN - MECHANICAL DEMOLITION

0 1' 2' 4' 8'

M101

VAULTS 4 & 5

NEW WORK

MECHANICAL

GENERAL NOTES

1. CONTRACTOR TO PERFORM A PRE-BALANCE TEST OF BOTH

CHILLED WATER AND SUPPLY AIRFLOW FOR THE ROOM AND EACH

EXISTING CRAC UNIT. DOCUMENT THE READINGS IN A REPORT

AND SUBMIT TO THE ENGINEER FOR REVIEW

2. WORK SHALL BE SCHEDULED WITH THE OCCUPANTS OF THE

ROOM 1 WEEK IN ADVANCE.

3. CONTRACTOR TO FIELD VERIFY ALL EXISTING CONDITIONS, PIPE

ARRANGEMENTS, SIZES, LOCATION, ETC. BEFORE BIDDING THE

WORK

CUT EXISTING PIPES AT POINT INDICATED AND REMOVE BACK TO

UNIT. PREPARE PIPES FOR CONNECTION OF NEW PIPING

REMOVE EXISTING CRAC UNIT ENTIRELY INCLUDING ALL LOCAL

PIPING, CONTROLS, SUPPORTS, POWER, ETC. PREPARE AREAS

FOR NEW UNIT

EXISTING AIR DEVICE TO REMAIN. CLEAN THE AIR DEVICE.

DEMOLITION PLAN NOTES

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SRBR No: 25111-45

PRICING SET 6/26/2026

“Professional Certification. I hereby certify that these documents were prepared or approved by me, and that I am a duly licensed professional engineer under the laws of the state of , License No. , Expiration Date: .”

PE905594

8-31-2026

Washington DC

P h o n e:

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Ex.14"x10"

Ex.14"x12"

12"Ø

1"

CD

CD

C D

1"

2"

CW

CW

2"

C H

RC

H

S

CHR

CHS

2"

2"

ALL PIPING SHOWN IS LOCATED

BELOW THE RAISED FLOOR

2"

CD

C D

CW

C H

S C

H R

4"

4"

ALL PIPING SHOWN IS LOCATED

BELOW THE RAISED FLOOR

A

CRAC

4A

CRAC

5A

CRAC

5B

B

B

C

C

C

D

E E

VAULT 5

VAULT 4

SCALE: 1/4" = 1'-0"

VAULTS 4 AND 5 PLAN - MECHANICAL NEW WORK

0 1' 2' 4' 8'

CONNECT NEW 11

4" CHS, 11

4" CHR, 12" CW AND 3 4" CD TO EXISTING

PIPE, EXTEND OVER TO NEW UNIT AND CONNECT. SEE DETAIL

FOR PIPE AND VALVE ARRANGEMENT OF PIPE CONNECTIONS

CONNECT NEW 21

2" CHS, 21

2" CHR, 12" CW AND 1" CD TO EXISTING

PIPE, EXTEND OVER TO NEW UNIT AND CONNECT. SEE DETAIL

FOR PIPE AND VALVE ARRANGEMENT OF PIPE CONNECTIONS

SET NEW UNIT ON FLOOR IN PLACE OF EXISTING. SET UNIT ON

FLOOR NEW FLOOR STAND SET TO THE EXISTING FLOOR HEIGHT.

REPAIR/REPLACE SURROUNDING FLOOR TILES AS NEEDED FOR

A COMPLETE AND CONTIGUOUS FLOOR SYSTEM AROUND THE

UNIT. REMOVE TILES OR MODIFY TILES AS NEEDED.

BALANCE EXISTING AIR DEVICE TO 75 CFM

BALANCE EXISTING AIR DEVICE TO 65 CFM

NEW WORK PLAN NOTES

A

B

C

D

E

M102

VAULTS 4 & 5

NEW WORK

MECHANICAL

GENERAL NOTES

1. CONTRACTOR TO PERFORM A PRE-BALANCE TEST OF BOTH

CHILLED WATER AND SUPPLY AIRFLOW FOR THE ROOM AND EACH

EXISTING CRAC UNIT. DOCUMENT THE READINGS IN A REPORT

AND SUBMIT TO THE ENGINEER FOR REVIEW

2. WORK SHALL BE SCHEDULED WITH THE OCCUPANTS OF THE

ROOM 1 WEEK IN ADVANCE.

3. UNIT CONTROLS SHALL BE INTEGRATED INTO EXISTING BUILDING

MANAGEMENT SYSTEM (BMS). UNIT SHALL BE SET UP TO

MAINTAIN A SPACE TEMPERATURE OF 72 DEGREES AND 50%

RELATIVE HUMIDITY. BMS SHALL MONITOR, AT MINIMUM,

OPERATING STATUS OF THE UNIT, CHILLED WATER POSITION,

SPACE TEMPERATURE, SPACE RH AND ALL ALARMS.

4. CONTRACTOR TO FIELD VERIFY ALL EXISTING CONDITIONS, PIPE

ARRANGEMENTS, SIZES, LOCATION, ETC. BEFORE BIDDING THE

WORK

5. ADD PERFORATED FLOOR TILES AS NEEDED IN VAULT 4 TO

ASSURE ADEQUATE AIRFLOW PASSES FROM UNDER THE FLOOR

TO ABOVE THE FLOOR. THE AGGREGATE AREA OF OPENING IN

THE FLOOR TILES SHALL NOT BE LESS THAN 480 SQUARE INCHES.

6. CONTRACTOR SHALL INCLUDE IN HIS/HER SCOPE TO PATCH

OPENINGS IN WALLS BELOW FLOOR SEPARATING ONE ROOM

FROM ADJACENT ROOMS. WALLS SHALL BE PATCHED USING 20

GAGE METAL STUDS 16" ON CENTER AND 12" GYPSUM BOARD ON

BOTH SIDE OF THE WALL WITH ALL JOINTS TAPED AND SPACKLED.

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SRBR No: 25111-45

PRICING SET 6/26/2026

“Professional Certification. I hereby certify that these documents were prepared or approved by me, and that I am a duly licensed professional engineer under the laws of the state of , License No. , Expiration Date: .”

PE905594

8-31-2026

Washington DC

P h o n e:

.8

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.8

-7

F re d er ic k R o it e

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M201

VAULTS 4 & 5

MECHANICAL

SCHEDULES

& DETAILS

STRAINER WITH THREADED HOSE-

END CONNECTION FOR BLOWDOWN

BALL VALVE - TYPICAL

POSITIVE SHUT-OFF CIRCUIT

SETTER WITH TEST PORTS AND

MEMORY LOCK

CHWS

CHWR

COMPUTER ROOM AC UNIT WITH

TOP RETURN, BOTTOM

DISCHARGE

CONNECT CHILLED WATER LINES

TO UNIT COIL CONNECTIONS

FACTORY FURNISHED

MODULATING TWO-WAY

CONTROL VALVE

RAISE FLOOR

BASEMENT FLOOR

UNIT FLOOR STAND

NO SCALE

COMPUTER ROOM AC UNIT PIPING DETAIL

1" COPPER CONDENSATE LINE

WITH CHECK VALVE

2" COLD WATER

CONNECT COLD WATER TO

UNIT HUMIDIFIER

MECHANICAL SPECIFICATIONS

1. Furnish and install a complete and operational system in accordance with drawings and these specifications. Provide all materials whether specified or not for a complete and operational system that complies with all required codes and standards. All materials and equipment shall be installed in accordance with the manufacturer's instructions and all applicable codes and standards.

Equipment shall be installed complete including power, controls, supports, etc. Equipment and associated controls shall be functionally tested in all operating modes. All equipment and materials shall be new unless otherwise indicated.

2. The contractor shall be responsible for visiting the site prior to bid and becoming familiar with all existing conditions that may affect his work. The contractor shall include in his bid any required labor and materials necessary to modify, remove or relocate existing work to allow for the new work to be installed. If the contactor believes the new work cannot be installed as shown in the drawings, he shall inform the project construction manager immediately. There shall be no additional compensation for failure to include coordination with existing conditions in the scope and cost.

3. All work shall be done in accordance with applicable building, mechanical, plumbing, electrical and energy codes and standards.

These include, but are not limited to the latest International Building Code (IBC), International Mechanical Code (IMC), International Plumbing Code (IPC), International Fuel Gas Code (IFGC), National Fire Protection Association (NFPA), American Society of Refrigeration and Air Conditioning Engineers (ASHRAE), Sheet Metal and Air Conditioning Contractors National Association (SMACNA), National Electrical Code ASME CSD-1.

4. The contractor shall maintain a competent superintendent on site at all times who will oversee all work and ensure the construction is done in a safe, clean and professional manner. He shall ensure the work is done in accordance with the project specifications, all layout is correct and accurate and the quality of the workmanship meets or exceed industry standards. He shall also verify all manufacturer instructions are being followed for installation and setup.

5. The contractor shall submit equipment shop drawings for all major equipment and materials including, but not limited to Computer Room AC units, pipe, valves and insulation. Shop drawings shall indicate materials, dimensions, weights, performance data and warranty information. Equipment shall be as scheduled on the drawings. Alternate manufacturers may be considered provided they meet or exceed the scheduled performance data and are of equal or better quality. Alternate equipment must fit within the allotted space.

6. The contractor shall maintain a set of as-built documents on site at all times. The drawings shall maintain red-line markup of all deviations from the deign documents and include pertinent information such as critical dimensions and elevations.

7. All new equipment and materials shall be reviewed by the contractor before ordering to ensure the equipment will fit in the given space, is suitable for the location, arrangement of duct, piping, etc, and can be serviced once installed. All required service access space shall be maintained and room shall be provided to remove filters and manipulate valves and dampers. Verify equipment electrical characteristics meet the existing available power.

8. The new unit shall be labeled with a phenolic engraved plate that lists the unit ID number, Airflow, Quantity of motors, Motor HP, Motor Amperage, Voltage/Phase, quantity of filters and sizes, chilled water flow in gpm.

9. Computer Room AC units shall be started and tested by a certified representative of the manufacturer. All other equipment shall be started and tested by the installing contractor. The equipment shall be tested in all modes of operation. All operating set points shall be programmed in coordination with the building operating staff. Verify all peripheral components including, but not limited to, control valves, sensors, interlocks, etc operate as intended and specified. The contractor shall provide a one year parts and labor warranty starting from the date the project is accepted and considered substantially complete by the engineer. At the time the equipment is turned over to the owner, all units shall have clean filters.

10. All new air and hydronic systems shall be balanced by a third-party firm certified by AABC or NEBB. Test and balance all fans and the computer room AC unit. All airflows and water flows shall be set to within 10% of that prescribed on the drawings. Submit to the engineer of record a Test and Balance report at the completion of the project indicating information about each piece of equipment and each system. Provide equipment operating data, and individual supply outlet measurement.

11. Chilled water pipe and cold water pipe shall be type L copper with soldered fittings and joints. Pro-Press joints and fittings are also acceptable. Ball valves shall be of bronze construction and full port with extended handles and a drain port placed on the unit side.

Balance valves shall be brass construction and include test ports and memory stops. They shall be equal to “Xylem Circuit Setters”.

Chilled water pipe and cold water pipe shall be insulated with closed cell elastomeric preformed pipe insulation equal to “Armacell”, ½” thick. All joints and plain ends shall be sealed with an appropriate sealant.

12. Condensate drain pipe shall be DWV or type L copper, insulated with closed cell elastomeric preformed pipe insulation equal to “Armacell”, ½” thick. Install check valve in the new or existing condensate line

13. The CRAC unit floor stand shall be provided with the unit, by the manufacturer. The stand shall be constructed out of steel with reinforced, adjustable legs to the set the height needed. the stand shall support eh unit along the entire perimeter and shall have legs at each corner and evenly spaced along the long dimension. The legs shall have enlarged feet to spread the load.

14. The CRAC unit shall be as scheduled, Basis of design is Liebert, 460V-3 phase, down-flow, chilled water units. units shall be provided with a modulating 2-way control valve, floor stand, ECM fan motor, MERV 8 filters, infrared humidifier, electric resistance reheat, alarm contacts, remote shut-down contact, smoke sensor and high temperature sensor, LT410 point leak detection sensor (1 per unit), locking disconnect and complete packaged controls. The controls shall be capable of being integrated into the existing Siemens Building Management System (BMS). The BMS shall provide room operating set points, start/stop signals, and shall monitor various operating parameters such as space temperature, space RH (%), unit control valve position, unit operating status and alarms.

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SRBR No: 25111-45

PRICING SET 6/26/2026

“Professional Certification. I hereby certify that these documents were prepared or approved by me, and that I am a duly licensed professional engineer under the laws of the state of , License No. , Expiration Date: .”

PE905594

8-31-2026

Washington DC

P h o n e:

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25111-45

6-26-2026

ALL VALVES, FITTINGS AND LOCAL

PIPING SHALL BE NEW.