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Tag: hospitality

400 Central Residency

400 Central Residences

Delivering efficient HVAC performance for a luxury 46-story residential tower in St. Petersburg, Florida using Griswold Controls Hose Kits and Automatic Flow Limiting K Valves.

Location St. Petersburg, Florida
Products Used Hose Kits with Automatic Flow Limiting K Valves

Project Description

In the sun-kissed landscape of St. Petersburg, Florida, the soaring silhouette of the 46-story 400 Central Residences stands as a new pinnacle of luxury living. With panoramic views stretching from Tampa Bay to the Gulf of Mexico, the development features more than 300 designer homes that highlight modern city living, convenience, and efficiency.

Beyond the private residences, the project introduces a vibrant ground-level destination with retail and dining, a resort-style pool, an innovative fitness center, and a sky lounge observatory. Designed by internationally recognized architects at Arquitectonica and developed by Vincent Celano, the building was envisioned to become a defining landmark on Florida’s Gulf Coast skyline.

Challenges and Solutions

High-rise construction introduces complex HVAC challenges, including fluctuating loads, elevated system pressures, and limited mechanical space. Griswold Controls' Hose Kits simplified installation while reducing the risk of leaks and providing vibration isolation, noise reduction, and compensation for thermal expansion.

Complementing the system, Automatic Flow Limiting K Valves deliver self-balancing performance by maintaining a constant flow rate even when system pressure fluctuates. This eliminated the need for manual balancing while saving time and labor during installation. The valves ensured precise flow control and enhanced the overall efficiency of the building’s HVAC infrastructure.

Benefits and Outcomes

The integration of Griswold Controls’ Hose Kits and Automatic Flow Limiting K Valves resulted in a reliable, cost-effective HVAC system that exceeded performance expectations. Residents benefit from improved comfort and consistent temperature control, while the building gains long-term energy efficiency and dependable operation.

Products Used

To create an HVAC system that balances comfort, reliability, and energy efficiency, the project incorporated Griswold Controls' Hose Kits and Automatic Flow Limiting K Valves. Represented by trusted partner Jascko Corp., these products played a key role in delivering high-performance heating and cooling throughout the tower.

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    About Jascko Corp.

    Jascko Corp., a stalwart in HVAC representation since 2005, provided invaluable support throughout the project. Their technical expertise, product selection guidance, and unwavering customer service underscore their commitment to excellence. Clients benefit from their comprehensive knowledge of industry standards and system solutions.

    Jascko Corp. assists owners and consulting engineers with the design of HVAC systems for commercial, institutional, and industrial applications, while also supporting contractors with project coordination from bid day through completion and beyond.

    Proudly representing Griswold Controls, Jascko Corp. played a key role in bringing efficiency and innovation to the forefront of the HVAC market, marking another successful collaboration in Southeast Florida.

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    Peppermill Resort Tower

    Peppermill Resort Spa Casino – HVAC Renovation

    Reno, Nevada | Completed Late 2023

    Location: Reno, Nevada
    Date of Completion: Late 2023
    Griswold Controls Products Used: Almost 2000 Automizer Coil Piping Packages with KMC Actuators Installed by GC

    Photos from Peppermill Resort Reno

    Project Description

    Nestled in the heart of Reno, the Peppermill Resort Spa Casino stands as a symbol of opulence, comfort, and entertainment. Offering 1,621 guest rooms—including the 600-room all-suite Tuscany Tower—this resort delivers an unmatched guest experience across its spa, casino, restaurants, pools, fitness center, and bars.

    Currently, the resort is undergoing a significant renovation of the Peppermill Tower rooms, enhancing guest comfort with modern amenities and contemporary designs.

    Griswold Controls proudly contributed to this project by providing its industry-leading Automizer combination control valves and coil piping packages for the HVAC system. These solutions ensure optimal heating and cooling performance, precise temperature control, and maximum comfort for guests. Additionally, the products streamline installation, reduce labor and energy costs, and simplify long-term maintenance.

    With over 60 years of experience in HVAC valve manufacturing and flow control solutions, Griswold Controls brings precision, reliability, and innovation to every installation.

    Project Implementation

    The renovation focused on delivering a high-performance HVAC system capable of maintaining comfort across all rooms, 24/7. Griswold Controls’ Automizer valves integrate the functions of an actuated ball valve and a flow limiting valve, providing precise flow regulation for each coil in the system.

    Signals from the building automation system (BAS) control the Automizer valves, allowing consistent temperature and comfort levels regardless of pressure fluctuations. This approach ensures every guest experiences the same premium comfort, while optimizing energy use and system efficiency.

    Partnering for Excellence

    Griswold Controls’ contributions allowed the Peppermill Resort Spa Casino to elevate the guest experience while reducing installation complexity and operational costs. By combining innovative HVAC solutions with extensive industry expertise, the project reinforces the resort’s status as a premier destination for luxury, comfort, and entertainment in Reno, Nevada.

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      Aurum Golden Apartments

      Aurum Golden Apartments

      Innovative HVAC flow control solutions supporting modern, high-amenity apartment living in Golden, Colorado.

      Location Golden, Colorado
      Date of Completion 2022
      Representative LONG Building Technologies, Inc.
      Griswold Controls Products Used Streamline Control

      Project Description

      Golden, Colorado is home to the world’s largest single-site brewery, the iconic Red Rocks Amphitheater, and now, the Aurum Golden Apartments – a modern apartment community designed to “Live Exceptionally™.” The development emphasizes collective living with high-quality amenities, a sense of community, and innovative housing solutions that blend work, life, and recreation.

      For a project with such high standards, the HVAC system could not compromise resident comfort. Griswold Controls’ Streamline Control valves were selected for their compact design, durability, and precise flow control.

      Installed with internal actuators and automatic flow-limiting cartridges, the Streamline valves save installation time and reduce space requirements. Lead-free construction allows safe use on domestic hot water coils, while the ceramic disc technology ensures reliable modulation and zero leak-by, even under high pressures.

      According to LONG Building Technologies, “350 Griswold no-lead brass Streamline Control valves with automatic flow limiting cartridges were installed on fan coil units using domestic hot water coils. The configuration reduced installation time and simplified balancing, impressing the contractor with ease of installation and performance.”

      The result is an HVAC system capable of delivering exceptional comfort and efficiency for residents throughout the community.

      For more information, click here.

      Products Used

      Griswold Streamline Control Valves

      Streamline Control

      Griswold Controls Streamline Control valves are compact, lead-free actuated valves with internal automatic flow-limiting cartridges. Designed for fan coil units and domestic hot water HVAC applications, they provide precise flow modulation using durable ceramic discs. The design simplifies installation, reduces space requirements, and ensures reliable performance throughout the building.

      Gold standard this, Denver Broncos that, let’s get down to brass tacks. The valves are Lead-Free for potable water – domestic systems even though they are installed on the HVAC system. Compact design and very simple installation – the actuator can be wired remotely which saves space. The Streamline valve is the first actuated valve in the industry to use a ceramic disc to modulate the flow. Ceramic discs have been used for decades in plumbing fixtures because they are durable, very low torque, and shut off against high pressures with zero leak-by.

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        We reached out to our rep and they had this to say about the project:

        “LONG sold 350 Qty. Griswold no-lead brass Streamline Control valves with automatic flow limiting cartridges for the Aurum Gateway Apartment project. These were used in an application with fan coil units that use domestic hot water coils to heat the space. The Streamline valves are the perfect solution for these applications because they are smaller than conventional control valves. The Streamline valves are smaller because the actuator is internal to the valve. Also, this Streamline valve configuration reduces installation time because the balance cartridge is internal to the valve also, giving the contractor less fittings that they must install. The contractor was impressed with the ease of installation and the performance of the Griswold Streamline Control Valves.”
        — Project Representative

        About LONG Building Technologies, Inc.

        LONG Building Technologies, Inc. is one of the largest building integrators in the Western U.S., providing expertise in Building Automation, HVAC Equipment, Mechanical Service, Security Solutions, and Parts. With hundreds of employees across eight states — Alaska, Colorado, Montana, Nevada, Oregon, Utah, Washington, and Wyoming — they are best defined by the way they treat their customers: “the heart of our business.”

        Guided by their core values: Company, Customer, Co-Worker, Safety & Community, LONG aims to gain customer trust, attract and retain talented employees, and deliver superior service. Their mission is to provide innovative building solutions that positively impact every person their business touches, creating long-term value and exceptional experiences for clients.

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        Parcel 12

        Parcel 12 Development – Boston

        Balanced hydronic HVAC systems supporting mixed-use office, retail, and hospitality spaces in Boston, Massachusetts.

        Location Boston, Massachusetts
        Date of Completion TBD
        Griswold Controls Products Used Automatic Flow Limiting Valves Grooved End – 4”-12” and K Valves


        Photos from Skyscraper Center and BostonPlans.org

        Description

        Arguably the most legendary stage on which the great American spectacle has been played is the world-renowned Fenway Park. Even during the darkest times in America’s past, one thing that has always helped Americans get through those times was the beloved sport of baseball.

        Baseball, otherwise known as the great American spectacle, has been a huge part of Boston and American history. This is why connecting the historic Fenway neighborhood and replacing the barren Boylston Street area with storefront retail, a hotel, and world-class office space is such an important part of Boston’s plans.

        Improvements don’t stop there with Parcel 12. The experience for pedestrians, bicyclists, and motorists, as well as those using nearby public transit, have been taken into consideration via repairs to bus stops, adding bike lanes, and connecting two of Boston’s most walkable districts.

        Parcel 12 has been in the works for nearly five years and for good reason. They have a task that stands to revolutionize Boston, and with a project so important, they only trust the best.

        Project Description

        Enter the Balanced Hydronic System. Hydronic system balancing is an essential part of HVAC design. Without proper balancing, some coils in a system have too much flow and others don’t have enough, leaving the building unbalanced.

        An unbalanced system can lead to excessive complaints as occupants experience spaces that are too hot or too cold. While manual valves may have lower initial costs, accounting for labor to balance them increases total cost. Automatic valves, on the other hand, maintain the design flow even as system pressures fluctuate.

        Using Griswold Controls Automatic Flow Limiting Valves ensures the building maintains the correct flow in all zones at all times, providing consistent comfort, improved efficiency, and reliable performance.

        Products Used

        Automatic Flow Limiting Valves – Grooved End and K Valves

        Griswold Controls Automatic Flow Limiting Valves are designed to maintain constant design flow regardless of system pressure variations. These valves are ideal for hydronic systems in mixed-use buildings, delivering accurate and reliable flow control across all zones.

        Available in grooved end sizes 4”-12” and K Valves, these products reduce labor for system balancing, enhance occupant comfort, and ensure the building operates efficiently throughout the year.

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          About Griswold Controls Products

          Griswold Controls has been providing high-quality automatic flow limiting valves for decades. Our products are engineered to maintain precise system flow, reduce labor for system balancing, and deliver reliable performance in commercial and mixed-use buildings.

          By using automatic flow limiting valves, building owners can ensure balanced, energy-efficient HVAC operation while reducing the potential for occupant comfort complaints.

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          Winthrop Center

          Winthrop Center

          Energy-efficient HVAC flow control supporting one of Boston’s most innovative and sustainable high-rise developments.

          Location Boston, Massachusetts
          Date of Completion July 2021
          Representative Equipment Direct Sales
          Griswold Controls Products Used Grooved End Valves 12" and 14"

          Photos from Fast Company

          Facility Description

          Massachusetts is home to world-class institutions and historic landmarks such as MIT, Fenway Park, and the site of the Boston Tea Party. Winthrop Center now joins that list as one of the city’s most impressive modern developments, standing as the 4th tallest building in Boston.

          Designed in collaboration with MIT professors, the building incorporates innovative sustainability strategies that significantly reduce both energy and water usage compared to buildings of similar size. The project places a strong emphasis on diversity, wellness, and equity while pushing the boundaries of high-performance building design.

          Winthrop Center is also set to become the world’s first Passive-House certified office building, demonstrating how cutting-edge engineering and thoughtful design can dramatically improve environmental performance while creating an exceptional space for occupants.

          Project Description

          With a project budget of approximately $1.3 billion, every aspect of Winthrop Center was designed to reflect modern aesthetics, functionality, and exceptional quality. The HVAC system needed to support this vision while delivering reliable performance and efficiency.

          The building features triple-glazed floor-to-floor curtain walls that are prefabricated to create a tight, custom fit, helping maintain comfortable interior conditions even during extreme weather.

          The ventilation system pulls fresh air into each floor while recovering energy from conditioned air leaving the building. This allows the offices to use approximately 65% less energy than the average building in Boston while providing 30–50% more fresh air for occupants.

          Products Used

          Grooved End Automatic Flow Limiting Valves

          The system utilizes 12” and 14” Grooved End Automatic Flow Limiting Valves. The stainless-steel flow limiting cartridge includes a spring-loaded cup that dynamically absorbs pressure fluctuations caused by changing heating and cooling loads.

          These pressure fluctuations occur within a defined pressure differential control range and do not alter the flow through the valve. As a result, the system maintains flow within ±5% of the engineered design flow rate.

          This consistent control helps ensure reliable HVAC system performance while supporting the building’s overall energy-efficiency goals.

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            About Equipment Direct Sales, Inc.

            Equipment Direct Sales employs a diverse team of sales, engineering, and administrative professionals with over 150 years of combined experience.

            Their collective expertise allows them to serve customers quickly and accurately while providing innovative HVAC solutions tailored to each project.

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            Bentall Skyrise

            Bentall Skyrise

            Custom HVAC and coil piping solutions for a 33-story landmark building in Vancouver, British Columbia.

            Location Vancouver, British Columbia
            Date of Completion 2021
            Representative Riada Sales Inc.
            Griswold Controls Products Used Custom CPP-6IRIS Coil Piping Packages for installation on 6-way control valves

            Photos from Skyrise Vancouver

            Facility Description

            33 stories, 403ft (122.83m), and a terrace that would even make the 1% blush. The renderings alone are astonishing. The Bentall Skyrise will occupy 14th place for the tallest building in Vancouver.

            The HVAC system is designed to match the grand vision, featuring triple glazing for efficiency and noise reduction, and glass solar shading to maximize natural light while minimizing glare.

            Project Description

            Custom CPP-6IRIS Coil Piping Packages were required for the 6-way control valves. One 6-way valve can replace four 2-way valves while using fewer parts. Benefits include bubble-tight close-off, 270-degree control angle, automatic balancing to reduce underflow/overflow at coils, and pre-plumbed packages to save time, labor, and money.

            The intuitive design makes installation and operation easier, ensuring engineers, contractors, and owners all benefit from reduced labor and maintenance costs.

            You can find the Coil Piping Packages here.
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              About Riada Sales Inc.

              Since 1995, Riada Sales Inc. has been assisting in selecting, specifying, and engineering the right products for commercial, institutional, and multi-family residential projects. They stand behind the products they supply and are proud of their association with the manufacturers they represent. Everyone at Riada strives to provide the best service possible to engineers, contractors, architects, and owners.

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              Monteleone Hotel Update, New Orleans

              Hotel Monteleone – New Orleans

              Griswold Controls helps preserve a historic French Quarter landmark through a phased HVAC retrofit using Automizer® coil piping packages.

              Project Overview

              Solution Automizer® Coil Piping Packages & Unimizer® Valves
              Application Hotel / Historic Landmark Renovation
              Mechanical Engineer Wink Engineering
              Representative Schully Strawn & Associates
              Facilities Engineer A.J. Mattern
              Phases Completed Phase 1: 2002 | Phase 2: 2004

              The Challenge

              Hotel Monteleone New Orleans

              Located in the heart of the French Quarter, the 15-story Beaux-Arts landmark Hotel Monteleone required a major HVAC retrofit while remaining fully operational. The property includes over 600 guest rooms and had to maintain comfort, aesthetics, and revenue during renovation.

              • Minimal Guest Disruption Rooms could only be taken offline in small groups. The hotel had to remain fully operational during renovation.
              • Historic Preservation Tight mechanical spaces required a compact, small-footprint solution.
              • System Compatibility The four-pipe fan coil configuration required a unified, single-source solution.
              • Phased Execution The retrofit needed to be efficient across multiple renovation phases.

              The Solution

              Working closely with Wink Engineering and the hotel’s facilities team, Griswold Controls recommended installing Automizer® combination control valve coil piping packages on the four-pipe fan coils.

              Key Advantages

              • Single Source for Coil Components Eliminates coordination issues and ensures system compatibility.
              • Multi-Function Valve Combines actuated temperature control and flow limiting in one compact package.
              • Small Footprint Ideal for historic buildings with tight mechanical space.
              • Equal Percent Control Mirrors coil heat transfer curves for superior temperature regulation.
              • Pre-Assembled & Ready to Install Reduces labor, installation time, and jobsite handling.

              I told Gary to get the Griswold Control valves on order and let my purchasing department know how much the bill would be.

              — A.J. Mattern, Chief Facilities Engineer, Hotel Monteleone

              Because the Automizer features automatic flow control, the retrofit could be accomplished a few rooms at a time without affecting the rest of the hotel's circuits — making it the ideal product for hotel renovation. In a manual balance application, the entire system would have had to be rebalanced every time a room was taken offline. By installing the Automizer, the hotel minimized room downtime, substantially reducing the potential for lost revenue.

              The Results

              Phase 1 (2002): The Monteleone Hotel renovated guest rooms with 288 Automizer CPP2A packages on horizontal units, plus a number of 3-way Unimizer® actuated control valves on vertical units.

              Phase 2 (2004): The hotel ordered an additional 112 Automizer coil piping packages. The re-order decision was automatic — a direct result of satisfaction with Phase 1 performance.

              Because the Automizer features automatic flow control, rooms could be renovated individually without requiring a system-wide rebalance — protecting guest comfort and preventing revenue loss.

              The success at the Monteleone Hotel demonstrates how a technically superior product can simplify phased renovation in occupied, operating buildings — protecting revenue while delivering measurable long-term performance gains.

              It's nice when you are selling a quality product like Griswold Controls. You put your time and effort into getting that first order, and then getting the next order just takes a few minutes on the phone.

              — Gary Lewis, Schully Strawn & Associates

              They work great! I'm very satisfied and look forward to buying Griswold Controls for every new FCU in the hotel as we continue to renovate additional rooms.

              — A.J. Mattern, Chief Facilities Engineer, Hotel Monteleone

              Automizer® Combination Control Valves

              Automizer® Next Generation valves combine an actuated 2-way control valve with a stainless steel automatic flow limiting cartridge and manual isolation ball valve — all within one compact body.

              • Globe Valve Performance Ball valve pricing with equal-percent control.
              • Patented Optimizer® Inserts 30–50% greater rotation response.
              • Automatic Flow Limiting Eliminates overflow and underflow.
              • Field Repairable Stem Resistant to chemical treatments and temperature swings.

              Coil Piping Packages & Hose Kits

              Griswold Controls offers over 900 standard pre-plumbed coil piping packages that simplify engineering design and speed installation.

              • Pre-Assembled & Shrink-Wrapped Ships ready to install.
              • 48-Hour Shipping Standard packages up to 2″.
              • Automatic or Manual Flow Options Works for any balancing application.
              • Single Source Supply Eliminates compatibility concerns.
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                Las Vegas’ Wynn Hotel & Casino

                Wynn Las Vegas Resort – Las Vegas

                Utilization of Griswold Controls coil piping packages to save a significant amount of install time for the new Wynn Las Vegas Resort.

                Project Overview

                Application Fan Coils, VAV Boxes
                Griswold Controls Solution Coil Piping Packages Unimizer® Actuated Control Valves
                Contractor Southland Industries & Hansen Mechanical
                Engineer/Consultant JBA Consulting Engineers
                Completion Date May 2006
                Griswold Controls Case Study - Las Vegas Wynn Hotel

                The most recent – and stunning – addition to the southern Nevada skyline is the new Wynn Las Vegas Resort. Built at a cost of $2.7 billion dollars and opened in April 2005, the 50-story bronze tower contains 2,700 luxury hotel rooms with floor-to-ceiling windows, 22 restaurants, the 2,000 seat “Aqua Theater-in-the-Round,” and the “Promenade” with luxury boutique shopping. Built on the site of the former Desert Inn, it also includes an 18-hole golf course. Whereas most high-end hotels have car rental desks, Wynn Las Vegas houses a Ferrari-Maserati car dealership inside the resort. The front entrance and three-acre Lake of Dreams are shielded from the street by a 140-foot tall mountain with 60-foot tall pine trees.

                Steve Wynn, who had previously built the Mirage (1989), Treasure Island (1993) and Bellagio (1998) hotels, conceived and developed Wynn Las Vegas. Several years ago he sold those three properties to MGM Grand in order to develop Wynn Las Vegas. This resort-casino clearly establishes a new threshold for local, high-end properties. JBA Consulting Engineers, Las Vegas, is the mechanical engineering firm responsible for the project. Bid and mechanical construction activity was divided into seven distinct areas, and the specification allowed for either automatic or manual flow controls. Southland Industries, Las Vegas, handled area one and the central plant, and Hansen Mechanical of Las Vegas was awarded responsibility for areas two through seven, which covered the tower.

                Engineered Equipment & Systems Co., the Griswold rep for southern Nevada, successfully convinced Southland Industries and Hansen Mechanical to utilize Griswold coil piping packages. Unimizers® were installed on a majority of the fan coils, VAV boxes, heating coils and heat pumps in the hotel rooms, showrooms, the Aqua Theater and the villas.

                According to Matt Miceli, the Engineered Equipment & Systems Co. sales engineer responsible for the project, the Unimizer packages significantly reduced Hansen’s ATC coordination costs. Matt said, “Hansen has been a Griswold Controls customer for some time. They especially like Griswold’s coil hookup packages and the way we shrink-wrap them. No other vendor provides this packaging concept. This project also offered them the opportunity to add the Unimizer® to the packages, which greatly simplified the coordination with the ATC contractor. The project time frame was extremely aggressive and the Unimizer® packages saved the contractor a significant amount of install time.” James Gomel, Hansen Mechanical project manager, stated, “The Griswold coil-piping packages allow for installation consistency to the systems along with a valuable savings in labor cost. In addition, incorporating the Unimizer® with the package allows for a complete installation of the coil-piping package, thus eliminating the need for additional labor required to install the controller in the field."

                In total, over 2,000 Griswold Controls piping packages are installed on the project along with over 20 air handler packages in area one. In addition to the flow controls and coil piping packages, Engineered Equipment & Systems Co. sold in excess of $100,000 worth of Griswold Filtration separators and separator package filtration systems for the numerous cooling towers on the project.

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                  W Hotel & Victory Park, Dallas

                  W Hotel & Victory Park – Dallas

                  Griswold Controls helps to re-shape the downtown Dallas skyline, providing space saver packages to maximize floor space in the hotel.

                  Project Overview

                  Application Terminal Units, Vertical Heat Pumps & Horizontal Heat Pumps
                  Griswold Controls Solution Space Saver Isolator®R Coil Piping Packages
                  Contractor Brandt Engineering
                  Engineer/Consultant James Johnston & Associates
                  Completion Date May 2006
                  Griswold Controls Case Study - Dallas’ W Hotel & Victory Park

                  Located in the heart of Dallas, just north of the downtown business district in a formerly unusable inner city site, Victory Park is one of the country’s most significant master planned urban developments. The project began with the construction of the American Airlines Center Arena in late 2000, home of the Dallas Mavericks basketball team and the Dallas Stars hockey team. A acre urban center, when complete Victory Park will offer retail establishments, dining, modern office space, residential units, entertainment venues, and a cutting-edge hotel. Part of the development will include Victory Plaza, an area reminiscent of Times Square in New York City.

                  In 2005, immediately across the street from the American Airlines Center, McCarthy General Contractors broke ground on what is now the W Hotel. The W Hotel, owned by Starwood Properties, is a 33 story luxury condo–hotel offering unique and exciting interiors, classic W amenities including terry/pique robes, an infinity edge swimming pool on the 16th floor, and top–notch restaurants and lounges. W Benton Wofford of James Johnston & Associates, the Consulting Engineer, designed the building to include hotel facilities up to the 15th floor, and luxury condo units from the 16th to 30th floors. Ross Perot Jr. has his own private penthouse suite complete with his own personal heliport on the roof.

                  Griswold Controls IRIS automatic packages with hoses were purchased for the terminal units; vertical stack heat pumps in the hotel rooms; and to maximize floor space, horizontal heat pumps for the condo units. Griswold Controls space saver packages were selected on the vertical stack units because space limitations required that the packages fit inside the heat pump cabinets.

                  Matt Summerville of Brandt Engineering, project manager for the mechanical contractor and long-time Griswold Controls customer, was pleased to provide Griswold Controls with project details. As a matter of fact, Brandt employee Mike Clark, the piping superintendent, told Griswold Controls that he had no problems whatsoever with any of the 382 Griswold Controls packages on the W Hotel and would not only use Griswold Controls products again, but would highly recommend them.

                  The W Hotel opened in June, 2006.

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                    Hotel Intercontinental, Chicago, Illinois

                    Hotel InterContinental Case Study

                    Improving room comfort with Griswold Controls' Automizer® combination control valves and Coil Piping Packages

                    Project Overview

                    Application: Hotel
                    Griswold Controls Solution: Automizer® combination control valves, Coil piping packages
                    Contractor: Bovis Lend Lease, Inc. Tobin Stanley
                    Engineer/Consultant: Edwards Engineering Marc Crampton
                    Completion Date: 2000
                    Hotel InterContinental - North Tower renovation

                    The Hotel Inter-Continental was built in 1929 as the Medinah Athletic Club. The contemporary North Tower was added later.

                    Cramped Spaces Prompt Ingenuity

                    During the renovation, more than 500 fan coils were replaced in North Tower guest rooms. Units were installed above the ceiling in the entry vestibule of the rooms, leaving only 12" of vertical space for the manual balancing system. Tobin Stanley of Bovis Lend Lease contacted Griswold Controls to provide pre-assembled coil piping packages with Automizer® combination control valves, saving space and labor during installation.

                    "This gave the client the opportunity to purchase prefab equipment and just put (it) in. This also meant that installers would spend minimal time on the site, so only two floors would have to be closed at a time."

                    — Bill Toth, Griswold Controls Sales Representative

                    Coil Piping Packages Provide Numerous Benefits

                    The balancing cartridge in the Automizer is factory preset to automatically limit the flow for each room or zone, eliminating the need for startup balancing and any subsequent rebalancing. The automatic balancing packages saved the hotel approximately $35,000 in start-up labor alone.

                    For this project, the standard coil package included the flow limiting cartridge of the Automizer combined with a low-torque, equal-percentage actuated ball valve and factory mounted Siemens actuators. The entire piping package takes up roughly one-fourth the space of a typical manual piping configuration.

                    Trouble-Free Balancing, Increased Comfort

                    With the renovation complete and the North Tower in full operation, Kees Guijt, regional director of engineering, reports there has been a significant drop in guest complaints regarding room comfort.

                    Automizer® & Coil Piping Packages

                    Automizer® Next Generation combination control valves
                    Automizer® combination control valves

                    Automizer® Next Generation valves feature Griswold Controls' field repairable stem design and allow for field servicing without removal. These all-in-one valves combine an actuated temperature control valve with an automatic flow limiting cartridge, making them ideal for schools, office buildings, VAV boxes, fan coil units, heat pumps, and terminal boxes.

                    Coil Piping Packages & Hose Kits

                    Griswold Controls offers over 900 standard packages, pre-assembled for easy installation and timely delivery. Options like hoses and extension kits are also available.

                    • Wide selection of pre-assembled, easy-to-order configurations
                    • Easy ordering: order by specific part numbers
                    • Timely delivery of standard packages
                    • Variety of options: downsized automatic temperature control, extra ports, inclusion of Automizer or Unimizer valves
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