One Bayfront Plaza

This new project is located in the heart of Downtown Miami and consists of twin 70 story towers atop a 3 level Retail Mall and an 18 level totally enclosed parking garage for 2500 cars.

The Office tower is over 1000 ft. tall with an Observation Deck at Level 71 and contains 2.2 million square foot of leasable office space with approximately 40,000 sq. ft. per floor plate.

The Hotel tower is nearly 800 foot tall and contains 850 guestrooms, 130,000 square foot of exhibition halls and banquet areas, and over 120,000 sq. ft. of leasable retail at the first 3 levels. The building is being designed to attain LEED Silver. Both towers have total of 46 elevators.

HVAC

For the Office Tower we are providing an 8,000 ton chilled water plant on level four and two 70 ton chilled water air handlers at each floor. We have a 35th floor intermediate mechanical level where we have some of the HVAC equipment to serve the upper portion of the Office Tower. Level 71 of the Office Tower is where we have 8000 tons of cooling towers and smoke evacuation system related equipment. The Hotel is served by 2000 tons of water cooled chillers located at the 4th level of the garage. The Hotel guestrooms will contain vertical fan coils. All common areas of the Hotel are served with chilled water air handling units. All garage levels are mechanically ventilated.

Plumbing

We are also providing domestic water system tanks at Levels 35 and 71 of the Office tower to partially downfeed the upper level’s domestic water. The Hotel tower is served from Level 4 and Level 71 pumps and a gas fired boiler at the Hotel Amenities level and roof for domestic hot water.

Electrical

The Electrical system for both the Office and Hotel tower consists of 13.2 KV vertical distribution feeders with 13.2 KV to 480 volt, liquid filled transformers at varying floors to serve office tenant requirements and 13.2 KV to 120/240 volt liquid filled transformers at every other guestroom floor. Transformers contain a biodegradable, seed oil based fluid, U.L. and F.M. approved for indoor use. Emergency generators are also at 13.2 KV and handle power outages for life safety equipment, lighting, hotel food storage and I.T. equipment. The fire alarm system will contain distributed intelligent power supplies, linked with fiber optic cables. This system will prohibit interruption to fire alarms on any other floor while floor of incidence alarms are sustained or if any other floor's power supply is damaged.

Fire Protection

Both the Office and Hotel towers will be protected with a state of the art Fire Standpipe and Sprinkler System. The lower portions, 1st thru 18th Levels in the Office tower and 1st thru 21st in the Hotel tower will be served from a 1000 gpm, 200 PSI diesel fire pump designed to deliver minimum 100 PSI at 500 gpm at the highest most remote fire hose valve. The upper portion of both towers will be supplied from 100,000 gallons storage tanks located on the roof of each tower. These tanks will serve both the domestic and fire systems in the towers and 60,000 gallons of water in each tank will be reserved for fire use at all times. There will be a 1000 gpm, 100 PSI pump located on each roof that will serve the upper 16-18 Levels in each tower. The storage tanks will be constantly filled by fill pumps located on the ground and 35th levels. Duplex fill pumps on the ground level will pump water to a 50,000 gallons tank on the 35th Level and then pumped from this tank to the roof tanks. All pumps mentioned will be tied to the emergency generator.

Wanadoo City @ Sawgrass Mills

This entertainment project was designed in place of the previously occupied space by Burlington Coat Factory. The total area of the Entertainment Center is approximately 170,000 sq. ft. with 100,000 sq. ft. on the ground level, 50,000 sq. ft. on the mezzanine level and 20,000 sq. ft. adjacent management and employment center. The design of this facility was inspired by a Disney concept incorporating educational aspects for children and teenagers. The entertainment center included the following functions:

1.     TV Recording Studio
2.     Arts Academy
3.     Music Conservatory
4.     Movie Studio with Editing Facility
5.     Department Store
6.     Courthouse with Fictitious Jailhouse
7.     Post Office
8.     Supermarket
9.     Performing Theater with Real-Life Control Room
10.   Circus
11.   Bread Factory
12.   Medical Clinic
13.   Emergency Room
14.   Chocolate Factory
15.   Country Fair with Race Track
16.   Food Court with Pizza, Sandwich, Prep-Station and Johnny Rocket Eatery
17.   Archeology and Mining Center
18.   Paleontology Center
19.   Waterfalls with Climbing Walls

The center of attraction was a portion of a life-sized airplane with cockpit for flight simulation. The mezzanine level was occupied with a support facility for parents including restaurant and disco.

The main challenge was to incorporate this facility into the Sawgrass Mills Shopping Center including aspects of life safety and security. Due to the Mall being designed with a fully functioning Smoke Evacuation System, every space within the entertainment center needed to comply with the same criteria.

The Electrical System for the project consists of two electrical services of 3,000 amps and 2,500 amps.

A Comprehensive Telecommunication System was installed utilizing fiber optic cable. Every entertainment center as indicated above was provided with dedicated dimming system. A 60 HP fire pump provided the facility with proper fire sprinkler coverage. Special fire sprinkler heads were distributed throughout the entire project.

The HVAC system is comprised of two (2) 275 ton air cooled chillers with associated chilled water pumps, housed on the roof of the attached two level Office Building. Chilled water was distributed both on the roof of the facility and at the spaces upper level, serving 25 Program Area rooftop air conditioning units. Air distribution for the various program functions was conveyed by low pressure ductwork, utilizing variable air volume box(s) supplying distributed air devices, all controlled through a direct digital space temperature control system. The roof mounted air handling units each were controlled by system chilled water modulating control valve(s). Humidity control for the air handling units incorporated bypass air control, The facility being part of the Mall, employed a Smoke Control System, utilizing the area air conditioning units for makeup air, exhausting smoke through dedicated smoke exhaust fans, Zoning, by area, was applied. The activation of the Smoke Control System was through a dedicated fire alarm system, with numerous smoke detectors providing coverage to all parts of the Program Areas, interconnected with the Mall Fire Alarm System.

Special consideration was taken in the support of the roof mounted air handling units, due to the type roof structure that the Mall employed. The installation and operation of the air conditioning system was achieved within the scheduled construction time-frame and has had a successful performance.

Marquis Hotel & Condo

This exciting project is the tallest residential building in the Southeastern U.S. and the second tallest (706 feet – total enclosed area: 900,000 sq ft) building in Miami Dade. It is designed by one of the pre-eminent architectural firms in the world – Arquitectonica. The project consists of 306 luxury condominiums on levels 15 thru 65, 14 ultra luxury, 2 level town-homes on levels 12 to 15 and 65 luxury hotel suites on levels 5 thru 11. There is a large pool area with 5 star spa, meeting rooms, a world class street level restaurant and on premise laundry and business center.

The A/C system consists of a 1500 ton water cooled heat pump system for the condos, townhouses and retail areas and a 520 ton chilled water system for the hotel and support areas.

The electrical system for the hotel and amenities areas is served by a traditional Florida Power & Light (FPL) vault with dual voltage (120/208 volt, 3 phase, 4 wire and 277/480 volt, 3 phase, 4 wire) secondary feeders and switchgear.

The condominium and townhouse residences are served from multiple 13,200 volt feeders to several 4 hour rated stacked vault rooms approximately every 3rd floor vertically. From these vaults with dry type transformers, we derive 120/240 volt single phase 3 wire service. This eliminates the need for multiple bus-ducts, prevents derating conductors due to distance and allows us to deliver 240 volts which is much more efficient for the private residences. Emergency power is provided by a 1750 kw diesel powered generator package with 24 hours of on site fuel storage. This generator powers the life safety systems including elevators, egress lighting, fire pumps, domestic water pumps, telecommunication systems and smoke control system. The smoke control system provided for areas of refuge on each of the residential floors, pressurized and smoke free environments in all the stairwells, complete smoke evacuation in all the public areas, restaurants, spa and lobby areas. The domestic water system for The Marquis consists of 3 services: Hotel, Condominium and non- potable (irrigation, pools and spas and cooling tower makeup). The condensate from all of the A/C/ units is collected and used as the primary source of makeup water for the cooling tower. The domestic water pumping systems consist of state of the art variable frequency drive pumps. Hot water is provided throughout the project by means of central gas boilers and storage tanks for the condominium and a separate system for the hotel. Storm drainage is collected in 3 separate systems (main roof, pool deck and parking garage) carried off independently to on site disposal wells. The fire sprinkler system for The Marquis consists of a low zone pump and a high zone pump.

1450 Brickell Avenue

This 35 story, first class office building in the busy Brickell Avenue business district has been designed by the well known architectural firm of Nichols Brosch Wurst Wolf & Associates of Coral Gables, FL. This project is being submitted for LEED Certification under "core and shell". It consists of 600,000 sq ft of leasable area with a total enclosed area of 1,000,000 sq ft.

The buildings A/C system consists of 3-820 ton chillers with a supplemental overtime condenser water based A/C system with a capacity of 460 tons. Total cooling tower capacity is 2-2cell cross draft units @ 1460 tons each. This enables the tenants of this office building to procure overtime A/C in 2 ways – either pay the building to operate the chilled water system for their space or tie into the buildings 24 hour 460 ton condenser water cooling system and install their own water cooled A/C units to service 24 hour operations such as data centers or other special areas.

The domestic water system for this project consists of 2 incoming water services. One system serves potable and one serves non potable such as irrigation and cooling tower make up water. All of the A/C condensate is captured and pumped back to the cooling towers as the primary make-up water source. Each system has its own variable frequency drive pumping system. Each tenant has four locations remote from the building core to tie into for executive bathrooms, remote coffee stations or mini kitchens.

The storm drainage system consists of one collection system for the roof and one for the parking garage. Both tie independently into the onsite disposal wells.

Power is provided to the buildings 277/480 volt, 3 phase, 4 wire secondary system via a vault with primary service from Florida Power & Light (FPL). This secondary system emanates from switchgear and is delivered via multiple bus ducts running vertically to stacked electric rooms on the office tower.

The office tenant's electrical service was sized for 12 watts per sq ft to incorporate lighting, the VAV box heat, receptacle and appliance outlets using a step down transformer at each floor to obtain 120/208 volt, 3 phase, 4 wire services.

The emergency power system consists of 1 – 2250 kw and 1 – 1250 kw generators. These provide power to 1/3 of the buildings A/C system and the entire life safety system, smoke evacuation system and domestic water pumping system. A 10,000 gallon above ground diesel fuel tank enables the building to function for several days during an emergency. All of the buildings lighting (public areas and garage) are controlled via occupancy and daylight sensors.