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The Enterprise CenterTechnical Specification
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TECHNICAL SPECIFICATION.

I. Structural System

The building is made of reinforced concrete structure. High-strength concrete (42,000 KPA) is adapted for the load-bearing core walls and columns. The floors are designed to take a live load of 2.5 KPA.

II. Building Finishes

External Cladding:

Podium - reinforced concrete wall generally finished with granite cladding and molded architectural features, high-quality stainless steel trims and louvers.

Towers - window walls with antique silver glass vision panels and spandrels with stone cladding.


Internal Finishes:

Main Entrance Lobby:
        Floor- marble/ granite/ limestone
        Wall- marble/ granite/ limestone
        Ceiling- metal suspended

Lift Lobbies:
         Floor- marble/ granite/ limestone
         Wall- marble/ granite/ limestone
         Ceiling- metal & glass suspended

Podium Arcade:
         Floor- marble/ granite/ limestone
         Wall- marble/ granite/ limestone
         Ceiling- metal suspended

Tenant's Offices:
         Floor- power float slab
         Perimeter Wall- gypsum board
         Ceiling- gypsum board

Comfort Rooms (with Handicap Provision)
         Floor- marble/ granite/ limestone
         Wall- marble/ granite/ limestone
         Ceiling- gypsum board

Passenger Elevator Cars:
         Floor- granite
         Wall- stainless steel with mirrors and green onyx paneling
         Ceiling- metal suspended

Railing and Metal Works:
Specially- designed tempered glass balustrade with anodized aluminum handrails around the atrium and main entrance lobby.

External Paving:
stone Paving Tiles; Landscape Features and Plantings

III. Air Conditioning System

There are two sets of variable air volume air handling units on each floor, fed by chilled water from the main chiller plant. Pre-cooled air supplied by the pre- cooler air handling unit acts as fresh air is fed from this unit through galvanized steel ducting and flexible ducts within the ceiling, into a variable air volume damper as a stubout for tenants' air supply. The same is also provided for return air back to the air handling unit plant room. All materials installed inside the air ceiling are non- combustible.

The system provides ventilation and cooling as appropriate throughout the year. Cooling for each zone is thermostatically controlled via individual temperature control boxes, which can vary the air volume.

The air-conditioning system is designed to cater to a population density of 10 square meters / person and a total power lighting load not exceeding 21.5-watts/ square meter.

IV. Security System

An extensive closed-circuit television system (CCTV) is installed to provide 24-hour monitoring of the podium area, elevator lobbies, entrance lobbies, carpark and exits from the staircase.

An electronic watchman touring system with computer monitoring is provided throughout the entire facility.

Door detection systems are provided to monitor the status of all exit doors.
Strategically- located Emergency Notification Stations for direct communication with the on-site Security Monitoring center is provided to aid in situations of duress.

V. Building Automation/ Energy Management System

A computerized Building Management System, using Direct Digital Control (DDC) monitors and controls the following Mechanical and Electrical Services:
         •Air-Conditioning and Ventilation Systems
         •Fire Services
         •Plumbing, Drainage, and Gas Systems
         •Electrical Systems
         •Security Systems
         •Elevators and Escalators

Heat- reflective glass panels are used for the windows to let light penetrate without reducing the cooling effect of air- conditioning.

VI.  Electricity Supply System

Electrical power is supplied by the Manila Electric Company (MERALCO). The power service voltage is 34,500 volts, 3 phase, 3 wire, 60 Hz. The high voltage cable is brought all the way to level 5 via XLPE cables in rigid steel conduit, to the level 5 substation to be connected to 6 dry type step down transformer rated at 2.5 MVA each which will transform the incoming line primary voltage to 380/220 volts, 3 phase, 4 wire, 60 Hz.

Each office floor has a maximum of eight (8) circuit breakers which can handle a maximum of 30 amperes each.

Tower 1: The 380/220 volts electricity supply to the office tower is divided into 3 zones of distribution (low, mid, high). A metering center is also provided for tenant use.
The building has a provision for a grounding system for any equipment that needs grounding.

VII. Emergency Power Supply System

The Enterprise Center has a 6-unit standby generator rated at 1,500 kilowatts, 380/220 volts, 3 phase, 60 Hz, each which can supply 100% back-up in case of power failure. These generators are capable of operating continuously and will start-up within 10 seconds of power failure detection by means of highly- reliable DC monitor starter. We advise tenants to install their own Uninterrupted Power Supply (UPS) battery system to their computer to bridge this period.

VIII.  Fire Protection/ Alarm System

A. Fire Protection:

a. A fully automated sprinkler system and pipe, meeting the Philippine fire code and city fire marshal requirements, is installed on an open plan grid.

b. A fire hydrant/ hose reel system complying with the Philippine fire code requirement is provided for the entire building.
    
c. An intelligent addressable detection system is provided for the entire podium.


B. Fire Alarm System:

An electrically supervised, non-coded fire alarm system is provided. The system will include a fire alarm control panel, a smoke detector, fire sensors, manual fire alarm stations, enunciator panel, standby batteries, connections to the sprinkler system, local audible alarm. The entire system includes fire detection, emergency voice/ alarm command, and a two-way fire fighter communication system. The fire detector alarm system shall be interfaced with the following:
    
    a. Elevator system for elevator recall and homing.
    b. Monitoring of flow switches and gate valves.
    c. Activation for pressurization blower, smoke extraction fan, and fire pump.
    d. Public Address System (PA) for fire evacuation announcement.
    e. Building Management System (BMS) for Air Handling Units (AHU) and other building facilities.

IX.  Elevators and Escalators System

A. Passenger Elevators: 32 high-speed elevators with an advance computerized control system serve the office floors of Tower 1 and 2, ensuring smooth and efficient travel with minimal waiting time.
 
B. Computerized Control: An independent elevator car computer control system with a master   microprocessor for each elevator zone or sub-zone, minimizes elevator lobby waiting time by allowing   competitive responses to calls among cars within a zone.

C. Service Elevators: There are four (4) service elevators (two for each tower). Two (2) are designed as firemen's elevators, and serve all floors from the basement to the 38th floor on Tower 1 and the 28th on Tower 2. Each elevator has a capacity of 16,000 kg/ 24 persons and a speed of 3 meters per second.

D. Six (6) sets of escalators will convey visitors and tenants from the entrance lobby into the building (for more details you can download a copy of the document by clicking the icons on top of this page)

X.  Lighting System

Fluorescent lighting fixtures are used in areas where continuous work is performed, such as all office spaces, office control rooms, and corridors. Fluorescent fixtures in these areas have mirrored louvers, side air slots and energy saver lamps. Fluorescent lamp ballasts will be thermally protected, high power factor type.

Screw-type fluorescent module fixtures are provided in small rooms and in areas that are used intermittently. Fluorescent light is used in elevator lobbies, corridors, and the like.

XI.  Plumbing and Drainage System

Two numbers of ultra-violet filters (UVF) is provided for each tower in order to maintain the water supply in a clean and hygienic condition.

Each tower has two ultra-violet filters (UVF) in order to maintain a clean and hygienic water supply.

A modified single stack system, combined with soil and waste with vent pipes are installed for the entire building for less maintenance and longer service. The soil and waste water from the sanitary fixture of both towers from top to Level 1 is discharged by gravity through stacks and horizontal piping to the street sewer line or manhole. From basement 1 to 7, it will be collected through the sewer pit, and pumped out to the city sewage line.

The helipad is provided with an independent drainage system in conformity with the Department of Civil Aviation.

XII.  Public Address System

A Public Address System (PA) is installed with speakers on every office floor and through the basement parking levels. The system is used for paging and broadcasting emergency messages.

XIII. Telephone System

The Enterprise Center provides a system of riser cables, telephone terminal cabinets (TTC), backboards, main distribution frames and telephone outlets. Each office floor is provided with 150 TTC pairs which will be broken down into 50 terminal module pairs.

There are also provisions for future connections to a fiber optic network. A room on basement 1 will be dedicated with the corresponding capped empty conduit service entrance.

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