Projects

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JFK AIRPORT T1 PROJECT

Uponor’s pre-engineered Radiant Rollout Mats

NYC Hotel Water Need Meets Electrification Energy Code

DHT Tank & Plate Storage Water Heaters with Taco ECM Pumps

DCAS Bronx Government Building

Fujitsu VRF Retrofit

Longwood Central School District

Riello Boiler, Taco Pumps & DHT Semi-Instantaneous DHW Upgrade

USPS Facility Jersey City

Firetube Boiler

JFK TWA Hotel Connie Airplane Project

Spacepak High Velocity A/C, Heat Pump & Iorex Pipe Corrosion Prevention

NYC DCAS – 1 Centre Street

Fujitsu VRF with Ventacity HRV & Smart Building Control

LIRR Wyandanch Station

Uponor Snow Melt, Riello Array Boilers, Taco Pumps & Wessels

Heatherwood Properties Boiler Room

Riello Array Boilers, Taco MPT & ECM Pumps

Brookhaven Memorial Hospital (Long Island Community)

Uponor Radiant Snow Melt

Town Of Brookhaven Landfill Maintenance Garage

Modine 100% MUA, Fujitsu Airstage VRF, ATH KN Boiler, Uponor Radiant & Taco

Genesis Homes – Brooklyn, NY

Riello Array Boilers, A.O. Smith Water Heaters, Taco Pumps & Controls

Time Warner Center

QuantumFlo Water Pressure Booster

World Trade Center WTC Museum

Jaga In-Floor Trench Perimeter Radiation

The Strand Hotel

ATH KN Boiler, Taco Heat Exchanger & Hydronic Accessories

Hearst Tower – U.S. Green Building Council LEED Gold Rated

Uponor Radiant Cooling System with No Condensing on the Floor

JFK AIRPORT T1 PROJECT

Uponor’s pre-engineered Radiant Rollout Mats

Challenge

To provide radiant heating and cooling at JFK Airport’s Terminal 1 Lobby.

Solution

Uponor’s pre-engineered Radiant Rollout Mats are designed for large-scale commercial projects where laying tubing by the coil is not labor efficient. The Rollout Mats reduces the use of wire ties and staples and the time it takes for installation. It also has a reverse return header option for better balancing. With the immense lobby space and glass façade, radiant cooling offers an efficient way to absorb the large sensible load from solar gain.

Products on the Job

Uponor Radiant Roll-Out Mat
(29x) Taco Vertical Inline KS Pumps

NYC Hotel Water Need Meets Electrification Energy Code

DHT Tank & Plate Storage Water Heaters with Taco ECM Pumps

Challenge

To supply efficient domestic hot water for their 350 rooms and banquet facilities, while meeting NYC Energy Code when replacing older, less-efficient water heaters.

Solution

The Commercial Tank and Plate Storage Water Heaters provided by DHT, along with Taco ECM pumps and expansion tank more than satisfied both the hotel staff and guests with plenty of hot water for baths, showers, washing machines and hand-washing. The DHT STP Series Commercial indirect is designed to operate with low supply water temps such as from a condensing boiler or heat pump. The multiple HX design allows for heat recovery with condenser water systems to meet the New York City Energy Code. As the nation’s largest water heating representative, we have a DHW solution for any application.

Products on the Job

(2) DHT 175-gallon STP Series – Tank and Plate Storage Water Heaters
Taco Viridian high-efficiency ECM pumps
Taco thermal expansion tank

DCAS Bronx Government Building

Fujitsu VRF Retrofit

Challenge

A 100-year-old building, with a hard to access roof and disjointed heating and cooling systems, causing comfort levels to be far too low and energy expenses far too high. In lock-step with New York’s march toward electrification (Local Law 97 / LL97), NYSERDA (New York State Energy & Research Development Authority) has set an ambitious goal to reduce the 2025 energy-use forecast by 185 trillion BTUs. DCAS has begun a systematic program of installing high efficiency heat pump systems in facilities that will yield the greatest savings.

Solution

Beyond hoisting an outdoor rooftop unit through a removed skylight in lieu of a crane, a variety of Fujitsu AIRSTAGE VRF and Halcyon mini-splits were used to replace the steam heating system. The largest room in the building, an expansive conference space, was previously served by a rooftop unit containing a DX coil and semi-hermetic compressor for cooling, and a gas-fired furnace. This did a poor job of responding to the fluctuating human load. “The conference room is now one of nine VRF zones in the building,” Laidlaw says. “We installed three, three-ton ceiling cassettes. We’ve witnessed much better temperature modulation in response to quickly changing loads.”

Other zones in the building are served by a variety of indoor units. Two eight-ton, high-static air handlers are used, one on the first floor and one on the second. Two five-ton vertical air handlers condition various offices. Wall-mount units are used in a storage area and a custodian’s office.

“Standby heat loss from the old steam boiler used to keep the basement hot,” Laidlaw says. “So we installed a three-ton ducted unit to keep the space above freezing.”

In total, eight condensing units and 11 indoor units were used for 46 tons of capacity. Once eight of the 11 VRF systems were running, work on the project was paused. From July through October of 2019, energy use data was collected. Electric and oil bills were compared to the same months of the previous year, showing a 34% savings.

“Because three units serving the first floor weren’t operational during the initial comparison period, we fully expect that the savings will be higher once collection of data includes the entire building—around 50%,” Donovan says. “All the units are now installed, we’re just waiting to connect power to the last few Airstage units.”

Products on the Job

(1) Fujitsu AOUA288RLBVG1 V-II Heat-Pump ODU
(1) Fujitsu ARUH36TLAV High static pressure duct IDU
(2) Fujitsu ARUH48TLAV High static pressure duct IDU
(2) Fujitsu ARUV48TLAV Vertical Air Handler IDU
(1) Fujitsu ARUH96TLAV High static pressure duct
(1) Fujitsu UTY-DTGYZ1 Touch panel controller(Internet access)
(5) Fujitsu UTY-RNRUZ2 Wired RC (Touch)
(3) Fujitsu AOU60RLAVM J-II Heat Pump
(2) Fujitsu ARUV60TLAV Vertical Air Handler
(1) Fujitsu ARUH60TLAV High static pressure duct
(1) Fujitsu AOUA120RLBV1 V-II Heat-Pump ODU
(2) Fujitsu ASUB24TLAV Wall Mount IDU
(3) Fujitsu AUUB36TLAV Ceiling Cassette IDU
(1) Fujitsu UTY-RNRUZ1 Wired Control

Longwood Central School District

Riello Boiler, Taco Pumps & DHT Semi-Instantaneous DHW Upgrade

Challenge

For this new construction project the engineers intent was to maximize energy efficiency with improved occupant comfort and control and provide the district with equipment offering redundancy and ease of maintenance.

Solution

The original project design scope included two separate Array boilers and a radiant floor heating system throughout the facility, however through the VE process, both the radiant system as well as one of the boilers were omitted. The Riello AR1000’s modular boiler concept still offered the client the redundancy and simplicity of maintenance desired and the use of the DHT SP indirect unit with an A.O. Smith storage tank for domestic hot water functions ensure that the boiler remains in a condensing mode of operation even while in DHW production. A small chemical pot feeder was included for future service and chemical treatment to ensure the system maintains its high level of operation.

Products on the Job

Riello Array AR1000 Boiler
DHT SP Indirect Hot Water Heater
A.O. Smith TJV Domestic Hot Water Storage Tank
Taco FI Base Mounted Pump(s) w/ Taco SmartDrive VFD(s)
Taco 4900 Air-Separator
Taco CA Expansion Tank
Wessels Chemical Pot Fill Unit

USPS Facility Jersey City

Firetube Boiler

Challenge

Client was looking to replace old, inefficient boilers with high efficiency condensing boilers.

Solution

Wales Darby assessed the needs of the client and building and suggested the Riello RTC boilers packaged with Taco pumps and hydronic accessories, magnetic filter, and venting. This complete solution provided the customer with a higher performance system and lower utilities.

Products on the Job

(6) Riello RTC-8000 Boiler(s)
Taco FI, KV, 1900, and 1600 Pumps
VFDs, Hydronic Accessories, CA Expansion Tanks
Taco 4900 Air/Dirt Separator, Magnetic Filter
16” Venting

JFK TWA Hotel Connie Airplane Project

Spacepak High Velocity A/C, Heat Pump & Iorex Pipe Corrosion Prevention

Challenge

Today she is simply known as “Connie”. She is one of only four remaining L-1649A Lockheed Constellation airplanes in the world. Restored back to her majestic glory, Connie is now part of the $250 million dollar TWA Hotel project designed to transport visitors back to the early 1960’s to experience an age where air travel was glamorous. She welcomes vistors in style as a fully-restored one-of-a-kind cocktail lounge. As part of her transformation, Connie was equipped with an array of SpacePak products that perfectly addressed each of her HVAC challenges.

Solution

Four LAHP48 Solstice Extreme Air-to-Water Heat Pumps are located remotely in a bunker. Chilled or hot water is piped underground into the underbelly of the plane to three WCSP-3642J air handlers and one WCSP4860J air handler which provide conditioned fresh air to the plane through traditional round and linear slot diffusers located throughout the plane. Return air is brought back to the air handlers from multiple return grills under the seating of the plane. The air handlers are controlled by the use of the SpacePak SSIC and ZonePak Pro controls.

The ability to remotely place the Solstice Extreme Air-to-Water heat pumps away from the plane and out of the visitor’s sight as well as the ability to fit the 2-inch flexible duct work inside the walls of the fuselage made SpacePak the ideal system for this project. Additionally, the current gas moratorium denying new and expanded gas service in New York’s five boroughs, Westchester County and Long Island, made the Solstice Extreme an easy choice for this and many other projects.

Products on the Job

Spacepak Air-to-Water Heat Pump
Spacepak High Velocity A/C
Taco Viridian ECM Pump(s)
Iorex Non-Chemical Pipe Treatment

NYC DCAS – 1 Centre Street

Fujitsu VRF with Ventacity HRV & Smart Building Control

Challenge

The 1 Centre Street building, located in Lower Manhattan, is a historic, 39-story building built in 1914, and is home to the NYC DCAS Citywide Administrative Services. The Department of Citywide Administrative Services (DCAS) Division of Energy Management (DEM) is the hub for energy management in City buildings. DCAS plays a critical role in supporting our agency partners’ progress towards the City’s major emissions reduction and energy objectives.

Solution

Due to the age of the building and the inclusion of the DCAS, it was imperative to ensure that the retrofit of an aging HVAC system was done properly, and as efficiently as possible. Fujitsu and Ventacity were chosen to complete this project in a timely, and efficient manner.

Products on the Job

Fujitsu Airstage Heat Pump VRF
Ventacity VS1000 HRV
Ventacity SBC100 Supervisory Controls

LIRR Wyandanch Station

Uponor Snow Melt, Riello Array Boilers, Taco Pumps & Wessels

Challenge

For this new construction project the engineers intent was to reduce the liability and potential hazardous conditions of snow/ice build up on the platforms for travelers along the LIRR.

Solution

In this one example (of multiple stations installed along the line), Riello AR2000 boilers were implemented to provide unmatched boiler plant redundancy and simplicity of equipment service. This helps ensure that any potential system down time as a result of routine maintenance, etc. is kept to an absolute minimum without drastically affecting the performance of the critical path snow melt areas for the general public. As each of these snow melt platforms are raised and exposed below, there is a higher potential for ice and snow accumulation to occur which can quickly become hazardous to the general public. In addition to the modular concept boilers implemented, Taco SKV vertical inline self-sensing pumps were implemented which are programmed to maintain the specific designed system flow rate. The internal logic of the pump VFD’s allow them to automatically compensate for any system fouling over time to maintain proper flow rate while also providing a lead lag function without the need for additional controllers or PLC’s. A Taco iWorx controls platform was implemented for automatic snow melt system operation and control using precipitation and slab sensors with the potential for off-site access by LIRR facility personnel.

Products on the Job

Uponor Snow Melt
Riello Array Boiler(s)
Taco SKV Self-Sensing Pump(s)
Taco iWorx Snow Melt Controls
Taco 5900 Hydro-Separator
Wessels Glycol Fill Unit

Heatherwood Properties Boiler Room

Riello Array Boilers, Taco MPT & ECM Pumps

Challenge

A renovated rental community that offers residents a variety of affordable apartment styles and a host of amenities including a laundry pavilion, community center, and state of the art fitness center. Some buildings in the complex also sport views of beautiful Patchogue Lake. A appropriately sized and reliable boiler to aid in the production of heating and domestic hot water is essential for both the community spaces, and rental units.

Solution

The Riello Array Boiler equipped with Taco MPT Tank and ECM pumps were provided and installed to more than handle the DHW load of the complex.

Products on the Job

Riello Array Boiler
Taco MPT Tank
Taco “00e” ECM Pump

Brookhaven Memorial Hospital (Long Island Community)

Uponor Radiant Snow Melt

Challenge

To reduce the hazard and liability of slips and falls of the general public entering the Hospital due to snowy, icy or wet conditions in the Winter.

Solution

For this extensive renovation project to the entrance of the hospital (including main lobby and public egress into the hospital), the initial design called for a radiant floor heating system within the lobby in addition to an extensive snow melt area encompassing the entirety of the sidewalk in the front of the building as well as public access areas. The intent of the snow melt system was to reduce the hazard and liability to the general public entering the Hospital. During the VE process the radiant floor was omitted from the project and the snow melt project scope was significantly reduced to include only a portion of the main sidewalk area leading to the lobby entrance and public transport drop off area located directly in front of the main lobby. The snow melt system worked perfectly to ensure direct access to the hospital entry was clear of snow, ice without the use of salts or additional human efforts to remove this critical path area.

Products on the Job

Uponor Radiant Snow Melt

Town Of Brookhaven Landfill Maintenance Garage

Modine 100% MUA, Fujitsu Airstage VRF, ATH KN Boiler, Uponor Radiant & Taco

Challenge

TBA

Solution

TBA

Products on the Job

Fujitsu Airstage VRF
Modine 100% MUA Unit
Hydrotherm/ATH KN Boiler
Taco iWorx Controls
Uponor Radiant Floor Heating
Taco SKV Self Sensing Pump(s)
Taco 5900 Hydro-Separator(s)

Genesis Homes – Brooklyn, NY

Riello Array Boilers, A.O. Smith Water Heaters, Taco Pumps & Controls

Challenge

TBA

Solution

TBA

Products on the Job

Riello Array (AR1500) Boiler(s)
Taco “FI” Series Pump(s)
Taco SmartDrive w/TSL VFD(s)
A.O. Smith BTH – Cyclone Water Heater(s)

Time Warner Center

QuantumFlo Water Pressure Booster

Challenge

The Time Warner Center completed construction in 2003.  The building’s original booster pumps were constant speed, horizontal split case pumps that provided water to potable fixtures.  Over the course of 10 years, the building paid high maintenance costs due to frequent replacement of the Pressure Reducing Valves (PRVs) on the discharge of the pumps.  A new federal code requirement, NSF/ANSI 61, also called for different materials of construction to reduce lead in drinking water. 

Solution

The engineering team recommended QuantumFlo’s WisperFlo variable speed booster pump package.  The WisperFlo does not use a PRV, but rather a variable frequency drive (VFD) and control logic to maintain system pressure based on demand. A submersible vertical multistage pump type is used on the WisperFlo instead of a horizontal split case type.  The submersible pump is surrounded by water within a stainless steel canister.

Providing the same output, the motor horsepower required was decreased from 60HP to 30HP.  The lower horsepower, variable speed capability, and removal of the PRV will allow for substantial operating and maintenance savings.  The new booster system complies with NSF/ANSI 61 and the submersible pump design also greatly reduced the noise that was formerly caused by the old pumps.

Products on the Job

QuantumFlo WisperFlo variable speed, constant pressure booster pump package
No PRV, No Bladder Tank

World Trade Center WTC Museum

Jaga In-Floor Trench Perimeter Radiation

Challenge

Design specifications required the museum’s viewing area, with its floor-to-ceiling glass windows, to maintain clear views onto the memorial site and its fountains. Given the space constraint, we needed to devise customized piping size units for arrangement within the concrete sub-floor. Heating such a space without baseboard on the wall informed this particular complexity.

Solution

Wales-Darby, Inc. recommended that the engineer, Buro Happold, work with Jaga mini canal trench type in-floor fin tube radiators. Functionally, this trench heating method design allows easy access for cleaning and maintenance. Aesthetically, the sub-floor placement allows for a grill to complement the interior design.

The installation of customized Jaga fin tube radiators along the perimeter prevents condensation on the floor-to-ceiling windows and assures unobstructed views of the memorial. Utilizing low-temperature water, the system also provides energy efficiency and reduced operating costs.

Products on the Job

Perimeter Fin Tube Radiation (Taco, Jaga, Uponor)

The Strand Hotel

ATH KN Boiler, Taco Heat Exchanger & Hydronic Accessories

Challenge

For this ground-up new construction, the client requested a high-efficiency boiler system with more than 90% energy efficiency. With design plans requiring the boiler room to reside in a tight space, our particular challenge was to provide an extremely efficient system within the room’s constraints.

Solution

Wales-Darby, Inc. worked with GKA to find the most efficient boiler system. We chose three HydroTherm KN-20 modular condensing boilers, with each boiler producing two million BTUs per hour. For ease of service, we installed a Taco 4900 high velocity air separator with PALL ring technology and detachable covers to remove air, dirt and microbubbles from the system.

The system maintains a small footprint, with all maintenance conducted from the front so that the boilers can be placed tightly. Every pump has a standby, firing in parallel to ramp up and slow-down in concert, based on the heating demand. The boilers modulate based on outdoor air temperature to meet the current heating demands of the building—including 177 rooms and suites, kitchen facilities and a rooftop bar—and increasing efficiency of the system to heat water to a certain temperature, which is then supplied to terminal units throughout the hotel.

Products on the Job

HydroTherm KN-20 modular condensing boilers
Taco 4900 high velocity air separator with PALL ring technology and detachable covers

Hearst Tower – U.S. Green Building Council LEED Gold Rated

Uponor Radiant Cooling System with No Condensing on the Floor

Challenge

Architectural plans called for a 46-story Diagrid tower to rise above the original six-story Landmark site of the Hearst Corporation headquarters in Midtown Manhattan. Air conditioning the dramatic six-story lobby—with its 70-foot-high ceiling—provided a particular set of challenges.

Solution

Concrete flooring and displacement ventilation perfectly conduct the radiant heating and cooling system—a matrix of water circulating through embedded pipes that removes heat from sunlight coming through the windows. With energy efficiency in mind, Uponor employed a stepped water fountain on both sides of the central escalators to cool and dehumidify the lobby space.

The lobby’s radiant cooling system—the first of its kind in the United States for a commercial high rise—maintains year-round comfort, with no condensation on the floor. As the first “green” high-rise in New York City, Hearst Tower uses 25% less energy than the minimum requirements of prevailing codes for buildings. The building also received the city’s first U.S. Green Building Council’s LEED Gold rating.

Products on the Job

Uponor radiant cooling system – with no condensing on the floor

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