building_systems.pdf

7/29/2019 building_systems.pdf

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Technology Center

Specialized Systemspage 1 o 4

5275 Leesburg PikeFalls Church, Virginia

Architectural Features

Layout

Elevators

Security Features

Communication

Fire Protection System

Built: 2001

BOMA Rental: 426,742 s

Floor Plate Size (Typical Floor): 72,208 s

Finished Ceiling Height: 9'1"

Ability to add additional oors and additional elevators

Dual Elevator Coreswith restrooms, mechanical rooms and electrical rooms

Communication Equipment Rooms CER (2) are located in the core on each oor, rooms areapproximately 420 s each

4,000-pound reight elevator with access to all oors

First oor designed or 150 #/s live load

66,652 s o below grade research area (R&D)research oors are designed or 250 #/s live load

Loading Dock with load levelers loading dock will accommodate three 55' tractor trailers

Fitness Facility ully equippedapproximately 4,500 s with mens and ladies locker roomswith showers

Conerence Center

First oor training rooms with raised oor

First oor slab to slab height is 18'

A typical oor size o 72,208 s includes two 420s Communication Equipment Rooms per oor

30' x 30' column bays

First oor and R&D slab to slab height is 18'

Dual elevator cores are provided and a 4,000-pound capacity reight elevator can access all oors

A sel-contained Security Command Center

Optical turnstiles in the Lobby

Perimeter security barriers with guard booths at access points

4-mil security flm on the windows

The Mailroom is designed to withstand a blast rom two pounds o TNT

The below grade SCIF Data Center (66,562s) is a Sensitive Compartmented Inormation Facility(SCIF) with a raised oor served by sel-contained heating, ventilation and air conditioning units anda Power Distribution Unit (PDU) electrical system. The space is 18' slab to slab with oors designedor 250 #/s live load.

Dual incoming Verizon eeds, fber optic communications availability and Cox cable availability

R&D Lab areas are protected by a water based pre-action system


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Heating, Ventilation andAir Conditioning

Cooling System

Centrifugal Chillers

Cooling Towers

Ventilation

4 Trane centriugal water chillers utilizing R-123, a HCFC rerigerant

4 cooling towers serving the base building and tenant equipment

Circulating pumps

Floor-by-oor air-handling units (AHUs)

2 outside air supply air handlers with electric heat and exhaust/relie-air ans

The cooling towers utilize variable requency drives

Primary HVAC equipment is located in the rootop Mechanical Penthouse and in oor-by-oorMechanical Rooms

Available cooling capacities provided by the base building cooling systems are approximately237s/ ton or the main building and 135 s/ ton or the Research Area

The mailroom has a separate HVAC delivery system and is not interconnected with the HVACdelivery system or the base building

The building is cooled utilizing a 2-pipe chilled water system

The air delivery system consists o 4 primary air handling units, located on each oor o the building

Each air handling unit is equipped with chilled water coils ed by centriugal water chillers located inthe Mechanical Penthouse

The conditioned air is distributed to variable air volume (VAV) boxes in the ceiling

Perimeter VAV boxes are an-powered and equipped with electric heaters

The cooling system is available or service 24 hours a day, 7 days a week

Major equipment includes:

- 2 water-cooled centriugal CVHE Trane chillers

- 3 chilled water pumps

- 3 condenser water pumps and a plate and rame heat exchanger or ree cooling

- 2 Baltimore Air Coil cooling towers located in an enclosure next to the Mechanical Penthouse

2,350-ton Trane CVHE chillers

The chillers serve the computer rooms and computer laboratories

One chiller is designated as an Emergency Chiller, oering 100% redundancy or the chilledwater system

2,350-ton Baltimore Air Coil Model 33373 cooling towers

The cooling towers are connected by equalizing piping and share a water treatment andLakos centriugal separator system

The an speed, or both cooling tower ans, is controlled by variable requency drives

1 10,000 t/minute (CFM) propeller type exhaust an serves the Mechanical Penthouse EmergencyGenerator Room

The Battery Room and UPS Room has a 2,000 CFM in-line tubular centriugal exhaust an in each space

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Diesel Fuel Storage Tanks

Diesel Fuel BoosterPump-sets

Cooling TowerBack-up Pumps

Automatic Transfer Switches

Emergency PowerDistribution Panel

Uninterrupted Power Supply(UPS)

2 Highland Tank, 6,000-gallon insulated, double-wall, steel, diesel uel, above ground storage tanksare located in a fre-rated vault on the G-2 level

2 Hydronic Modules Corporation pump-sets serving the generators are located on the G-2 level

The 4 gear type pumps utilize 1/3 horsepower motors and operate with 115 volts

3 30 horsepower chilled water pumps

3 25 horsepower condenser water pumps serve the chillers

The chilled water and condenser water pump groups consist o 2 primary water delivery pumpsand one standby pump or emergencies

1 700-ton Superchanger plate and rame heat exchanger provides ree cooling capability duringcold ambient temperatures

A Tigerow pump-set, located on the G-1 level, serves the cooling towers in a back-up capacity

Each pump is rated at 3 horsepower and delivers 40 gallons/minute water ow at 110 t o head

The pump-set operates on 3 phase, 480 volts

The emergency generators serve 3 automatic transer switches; a 400-ampere electric riser, a600-ampere North Elevator service, an 800-ampere service or the #3 centriugal chiller system

An 800-ampere manual switch serves the #4 centriugal chiller system

A 3,000-ampere, 3 phase, 4 wire, 480/277 volt, 60 cycle paralleling generators and distributionpanel is located in the Penthouse Generator Room

Grid o poke-thrus providing power and communications to the systems urniture without the needor power poles

A 1,000 kVA non-generator back-up and a 600 kVA with generator back-up system are located onthe G-2 level

The 1,000 kVA parallel-or-capacity system operates at 480 volts, 3 phase input and output with a15 minute battery backup

The 600 kVA parallel-or-capacity system operates at 480 volts, 3 phase input and output with a15 minute battery backup with generator back-up and a 1,200-ampere automatic transer switch

Both systems incorporate a power distribution unit. 4 14-oot, 3-tiered battery racks and 4 15-oot,3-tiered battery racks serve the UPS

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Pumps

Plate and FrameHeat Exchanger


Emergency Generators 2,900 kilowatt (kW) Caterpillar Model 3508 diesel-ueled emergency generators

Each generator is equipped with a day tank ed rom two 6,000-gallon diesel uel tanks andpump-set located on the G-2 level

The emergency generators serve 3 automatic transer switches; a 400-ampere electric riser, a600-ampere North Elevator service, an 800-ampere service or the #3 centriugal chiller system

An 800-ampere manual switch serves the #4 centriugal chiller system

Each generator is rated at 900 kW, 3 phase, 4 wire, 480/277 volts, 60 cycles


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Computer Room AirConditioning Units

Electric Power

Power Distribution Units

27 CRAC units serve the Research Level, 2 units serve the UPS Room and 1 unit serves theBattery Room

The 9 Telephone/Data Rooms are located on the tenant oors and are cooled by individualCRAC units

The nominal capacity o the CRAC units ranges rom 4 to 25 tons. Electric reheat is provided in allthe CRAC units except or the Battery Room unit

Computer Room Air Condition (CRAC) Units service the Research Area, Telephone/Data Rooms,UPS Room and Battery Room

Chilled water is supplied by the centriugal chillers located in the Mechanical Penthouse

Electric power is supplied by Dominion Power to 4 switchboards: SWBD #1 is rated at 4,000

ampere, 480/277 volts, 3 phase; SWBD #2 is rated at 5,000 ampere, 480/277 volts, 3 phase;SWBD #3 is rated at 4,000 ampere, 480/277 volts, 3 phase and SWBD #4 is rated at 3,000ampere, 480/277 volts, 3 phase

A typical oors electrical capacity is 35 watts/s design rated as 8 watts /s or HVAC, 2 watts /s olighting, 5 watts /s or receptacles and 20 watts /s or special requirements such as C.E.R. rooms

The SCIF Data Centers electrical capacity is 67 watts /s design rated as 34 watts/s or HVAC,2 watts/s or lighting, 3 watts /s or receptacles and 28 watts /s or special requirements such asareas with raised oors

19 Power Distribution Units, with shielded isolation dry-type transormers designed or 3 phase,60 cycle, 480-208/120 volts, serving various areas

5 100 kVA, 1 125 kVA, 2 30 kVA, 2 50 kVA and 7 75 kVA transormers

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