2wg Healing Sound　

An air handler cabinet can retain its integrity well beyond fans, coils, and other components, allowing it to be retained.  system and there’s no vibration. Vibration velocity levels at the building structure were reduced between 5 dB and 8 dB re 9.8 x 10. Gaining redundancy was important, not only to ensure uninterrupted building comfort, but also because the fan system serves a 24/7 data center. Combined, they require 300 hp instead of the 400 hp required by the older system. We had the added advantage of being able to eliminate sound-traps altogether, because the fans operate so quietly. Upgrades and retrofits have earned a LEED. © Copyright AirReps 2019 | All Rights Reserved. IGS is one of the leading magazines in the glass industry bringing you the latest news, technologies and developments in the architectural glass and facade design and construction field. Results from the study demonstrate that incorporating the FANWALL system dramatically reduced noise and vibration levels: All of these factors are good news for Latta, whose focus as construction manager is energy savings. “You can put your hand on the FANWALL system and there’s no vibration. We seek to deliver value through targeted development in high-barrier-to-entry locations, or hands-on adaptive reuse projects to increase income and upgrade user experiences. corruption case. Share 0. Air Reps offers distinct advantages in solving challenging problems that often arise in HVAC design and installation projects. In the fifth floor mechanical room, two separate banks of 15 fans supply air and require less energy. The differences between FANWALL TECHNOLOGY,  and the existing fans in this case are startling: multiple cubes of direct drive plenum fans arranged in a “wall” or bank replace the large, forward-curved, squirrel-cage fan in each of the two air-handling units in the fifth floor mechanical room. Other case studies include San Francisco 1989, Kobe 1995 and Haiti 2010. In multiple site visits during the removal of the supply fans and replacement with the FANWALL. Shaun Webster, sales engineer with Norman Wright, the local manufacturers’ representative firm for Nortek Air Solutions, had presented the modular-fan concept to a group of 180 chief engineers in the San Francisco area. The sequence was the same for the second mechanical room. Two mechanical rooms on the fifth floor serve two separate systems — a north side and south side — on floors one through 18. The entire demolition and reconstruction was completed in six weekends, three weekends per side. It was removed between 6 p.m. Friday and 6 a.m. Saturday. Results from the study demonstrate that incorporating the Fanwall system reduced noise and vibration levels in the Transamerica Pyramid as follows: At locations where supply air equipment dominated the noise environment, levels were reduced between 7 dBA and 13 dBA (8 dB and 17 dB overall) and 15 to 20 NC points. At the time, that met the requirements of a special “shadow ordinance” in this foggy city on the bay. On the third weekend, the existing coils and filter bank were removed and the new filter bank installed. Case studies illustrate the impact of natural hazards in the short and long term. As integral to the San Francisco skyline as the Golden Gate Bridge and the Coit Tower, the Transamerica Pyramid has been recognized as an avant-garde building since the first cornerstone was laid in 1969. “Plus, I wanted to avoid a like-for-like retrofit because of the negative effects on tenants. There is no need to have a crane on site as is often the case with larger conventional fans. Transamerica Pyramid Case Study New ventilation system is efficient, redundant, quiet — and tenants undisturbed by demolition/ re-construction As integral to the San Francisco skyline as the Golden Gate Bridge and the Coit Tower, the Transamerica Pyramid has been recognized as an avant-garde building since the first cornerstone was laid in 1969.  weighs about 600 pounds total and includes a motor and fan. Any replacement system needed to minimize tenant disruptions, reduce energy costs, and lower sound levels.  as a way to upgrade the system without having to bring in a whole lot of demolition equipment,” said Dennis Latta, construction manager for the Pyramid Center. The old fan measured 12 x 12 feet and included a 1,900 pound motor and concrete base. The old fan measured 12 x 12 feet and included a 1,900 pound motor and concrete base. We had the added advantage of being able to eliminate sound-traps altogether, because the fans operate so quietly. “One of the things that’s really exciting about this project is that it’s 21st century technology,” he added. FANWALL systems can minimize these and other barriers. We couldn’t change out the fans because they were buried too deep in the building, and the building couldn’t be down as long as it would take to replace them. The multiple fans generate the 202,000 cfm required, but the modular design allows individual fan cubes to be navigated through the building and 3-foot doorways and stacked in place. The Iconic Transamerica Pyramid Sets New Standard for Reliable and Quiet Systems, "The fifth floor mechanical room is now quieter, more spacious and the multiple array of fans makes it easy to understand why it\u2019s unlikely we\u2019ll have a major disruption to cooling on Floors one through 18.". A very common case study for earthquakes is the South-East Asian Tsunami. Gold certification for the Transamerica Pyramid. Access limitations are a barrier to many replacements, because they cannot be accomplished without the time and expense of a major demolition and reconstruction project. The building has had overheating problems since it was built. Oldham had another priority as well. On the second weekend, the old fan was removed, and Frederick’s team installed the new FANWALL cubes. “It was a good option because we could redesign the layout of the cooling coils, fan intake, and ducting at the same time.”, Besides managing the logistics of the retrofit itself, additional goals were efficiency and redundancy. That’s positive given that there are tenants on the floors above and below and a data center next door.” The reduced sound and vibration was also verified through an independent study. FANWALL.  systems to maintain consistency for acoustical measurement comparison. It went together very simply.”. “I really wanted to get more static pressure into the space and make the whole system run a lot better. Case Study: The Transamerica Pyramid in San Francisco The Transamerica Pyramid soars 853 feet (260 meters) into the air and has stood as a symbol of San Francisco since 1972. Fortunately, there was a simple solution that met all requirements. “The FANWALL TECHNOLOGY,  concept gave us a lot of avenues to help alleviate the challenges we faced,” said Doug Peterson, chief engineer for the Pyramid Center. The aging air handler fans serving floors one to 18 of the building required continual maintenance because of their age. Webster contacted Pyramid Center management to discuss the concept as a viable solution. That included a tour of the factory in Tualatin, OR, as well as pre-planning, installation, implementation, and follow-up. From the early stages of the project, Randy Scott, senior vice president, Critical Facilities Group, Skyline Construction, credits Nortek Air Solutions with being an active participant in the project. The entire system is custom-configured by selecting the number of fans, wheel diameter, and rpm to add up to the same cfm as the original fan. Replacing the fans and coils at the same time would save a considerable amount of labor and costs — but a like-for-like replacement of the fan would result in as much as two, three, or even more weeks of downtime, which was not an option in this busy facility. “It was the easiest part of the project. “The FANWALL TECHNOLOGY concept gave us a lot of avenues to help alleviate the challenges we faced,” said Doug Peterson, chief engineer for the Pyramid Center. The project would have spilled into the hallways, posing additional tenant disruptions. Selecting the critical factors of fan efficiency — number of fans, wheel diameter, blade width and rpm — provides close to peak efficiency of the fan curve, according to Norman Wright’s Webster. The multiple fans and motors provide redundancy in the event of a fan or motor failure, because the remaining operating fans and motors continue to deliver airflow -– and the smaller size and weight of the motors makes replacement easier. “Once the old fan was removed, installing the FANWALL system itself was just a matter of getting the cubes in place, bolting them down, assembling and flashing off to the existing plenum and the new plenum area, and commissioning,” said Frederick. Redbubble brings you unique and colorful iPad cases & skins. Additional acoustical measurements were conducted near the exterior louvers to estimate potential reductions in noise transfer to neighbors and exterior locations. The building was built back in 1972, and was the tallest building until two years ago when the Salesforce Tower was built. We couldn’t change out the fans because they were buried too deep in the building, and the building couldn’t be down as long as it would take to replace them. “FANWALL TECHNOLOGY changes a fan failure from a catastrophic event to a routine maintenance item,” said Webster. The Transamerica Pyramid and boarded up buildings on Montgomery Street in San Francisco, Calif. ... Mayor Breed's French Laundry fiasco, and a closer look at the ever-expanding S.F. AirReps is proud to offer proven pathogen mitigation that will bring the safest, cleanest air possible to your commercial space. Combined, they require 300 hp instead of the 400 hp required by the older system. The resulting system would be more energy efficient and quieter than the existing fan, while also providing system redundancy. The battle to build the Transamerica Pyramid. Actual results show that the Transamerica Pyramid reduced electrical consumption by 80,000 kWh, or $25,000 during the first year of operation. That opened up another five feet on either side of the old fan.” In fact, the entire FANWALL system only requires about five feet of space. Efficiency is further optimized because the brake horsepower required is close to connected horsepower and the overall “system effect” is reduced. From the early stages of the project, Randy Scott, senior vice president, Critical Facilities Group, Skyline Construction, credits Nortek Air Solutions with being an active participant in the project. FANWALL TECHNOLOGY,  produces a uniform piston of air, creating a uniform velocity profile at the unit coils and filters and throughout the airway path in the unit. The 1970s era air handler fans serving floors one to 18 of the Transamerica Pyramid required continual maintenance. With custom cuts and independent designs, deck out your iPad in style. Replacing the old housed fan with a new one was quickly ruled out. “Once the old fan was removed, installing the FANWALL,  system itself was just a matter of getting the cubes in place, bolting them down, assembling and flashing off to the existing plenum and the new plenum area, and commissioning,” said Frederick. , I wanted to avoid disrupting tenants or interrupting normal operations service that you use breaking... Pathogen mitigation that will bring the safest, cleanest air possible to your commercial space required continual maintenance for a... Rates, rotational speed, and Frederick’s team installed the new FANWALL cubes are. Other Transamerica companies room were the primary problem was quickly ruled out become. Into the space and improved system performance and had outlived its recommended lifespan pans were leaking, which posed corrosion. System draws between 60 and 70 amps less compared to the existing system in targeting assets in gateway... 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