Posts tagged ‘comfort’

March 23, 2017, 9:00 am

Project Profile: Burton Center for Arts & Technology

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The Burton Center for Arts & Technology (BCAT), Salem, Virginia, serves almost 800 students. At BCAT, students can take classes on a wide variety of topics, such as automotive technology, computer information technology, culinary arts and cosmetology.

When the school’s old HVAC systems needed replacing, BCAT selected our Variable Refrigerant Flow (VRF) technology to ensure comfort and efficiency for its students and faculty.

Melinda Ruble, president, MDR Engineering, Roanoke, Virginia, had the challenge to design a new HVAC system for BCAT. “The old boiler was entering the end of its useful life. The school also wanted cooling; some of the school was air conditioned by window units, but in some places, there was no a/c at all. The county is really energy conscious and had made a big push for energy efficient designs, so the eventual HVAC system’s energy efficiency came into play.”

After exploring various technologies, Ruble believed VRF could meet the demands of the county in addition to the needs of the school. She said, “Geothermal was too expensive and there was no space for wells. VRF, though, could be as energy-efficient as geothermal, but without the expense.” The school agreed with Ruble’s suggestion.

With VRF decided on, the school selected Mitsubishi Electric as the brand of choice. Ruble said, “Mitsubishi [Electric] requires certification programs of its contractors, making for a better install. I’ve had much greater success with Mitsubishi [Electric] than other manufacturers.”

The school chose to use VRF in key areas to take advantage of its benefits. “We put VRF, for example, in places with multiple offices where individual comfort was most important. From there, we could then piggyback on the system to get some extra classrooms,” said Ruble.

Since installation, the new HVAC system not only has improved the learning environment for everyone at BCAT, but has made it a comfortable one. To read more about BCAT, check out the full case study here.

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March 9, 2017, 9:00 am

Project Profile: The Covenant School

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The Covenant School was founded 30 years ago in Charlottesville, Virginia. The lower school, for students in pre-K through 6th grade, is located in a 65,000-square-foot historic brick building dating back to 1935. With almost 300 students, faculty and staff members, the school needs to operate seamlessly so when the old boiler system started to fail, it needed to find a new heating system as soon as possible. The Covenant School selected our Variable Refrigerant Flow (VRF) technology to answer that need, providing zone control, air filtration and the added bonus of cooling.

To find a suitable system, the school called in Jay Taggart, school board member and the President of W.E. Brown, Charlottesville – the project’s installing contractor. Taggart compared two systems – a water-based chiller and VRF – and made a recommendation to the school. He said, “Everyone agreed that ductwork couldn’t happen, and we were worried the roof couldn’t handle the weight of a chiller, so we came in with a CITY MULTI® solution. With CITY MULTI, there wouldn’t be nearly as much equipment on the roof as a water-based solution, making VRF significantly lighter. Also, CITY MULTI offered simultaneous heating and cooling in a real way because of the heat recovery, and a more detailed level of zoning. And because refrigerant piping is smaller than water piping, VRF offered a more compact solution.”

Installation proceeded during the summer while the students were away, ensuring an easy process for the project team and school. Since the completion of the project, the school has seen improvement in comfort and health. Taggart said, “This is the first time the building has ever been fully air conditioned or had air filtration, so the air quality has gone up drastically. Many teachers say they’ve noticed an impact on their health: fewer allergies and colds.”

Between the improved indoor air quality and increase in control, The Covenant School can now offer a comfortable learning environment for its students and teachers year-round. To read more about The Covenant School, check out the case study here.

Written by MitsubishiHVAC
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March 7, 2017, 9:00 am

Specifying for Multiple Generations

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Icons were designed by Freepik on flaticon.com and are licensed by CC BY 3. Graphics have been edited.
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February 23, 2017, 9:00 am

Project Profile: Fogo de Chão

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In recent years, Fogo de Chão® (Fogo), the famous Brazilian steakhouse, headquartered in Dallas, Texas, opened a New York City location directly across the street from the Museum of Modern Art, on W. 53rd St. between 5th and 6th Avenues. For its HVAC needs, Fogo selected our Variable Refrigerant Flow (VRF) zoning technology to ensure that guests remain comfortable while dining. Our technology offered the company cost savings over the chilled water system that was originally specified.

The original HVAC design, a water plant on the roof, posed issues of code-compliance, cost and unsightly ductwork for Fogo. The HVAC contractor on the job, Stanley Berger, CEO, Arista Air Conditioning Corp., Queens, New York, proposed VRF as the solution to avoid any issues and to offer the restaurant cost savings. Berger said, “VRF’s simultaneous cooling and heating capability means you can have heat coming from one handler, cooling from another – any combination you want. There’s tremendous energy savings to that.”

Following Berger’s proposition to use VRF, Fogo did an energy analysis to see how the technology would perform in comparison to the chilled water system. VRF dropped the current load by 300 amps, offering tremendous cost savings. However, Fogo was still curious about VRF’s operation, and was unsure if zoning would work well for the restaurant. After seeing VRF in action at multiple installation sites across New York City, Fogo was convinced.

Since installation, VRF has worked tremendously in the new location. It has allowed Fogo to take advantage of the cost savings and to offer complete comfort for dining guests.

To read more about Fogo de Chão’s success with VRF, check out the full case study here.

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February 1, 2017, 9:00 am

The Smart Office Space

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Icons were designed by Freepik on flaticon.com and are licensed by CC BY 3. Graphics have been edited.
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November 15, 2016, 9:00 am

Project Profile: St. Ignatius Loyola School

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Photo: Scott Pease/Pease Photography, 2015

St. Ignatius Loyola School, Cincinnati, is the largest private school in the state. Since its original structure dates back to the 1950s, many of the classrooms did not have air conditioning, making the warmer months unbearable. In the winter, the school’s low-pressure boiler consumed a lot of gas, and in turn, cost a lot of money to run adequately. With over 1,000 K-8 students enrolled, the school’s HVAC system needed an upgrade in both comfort and efficiency.

The new system needed to meet three objectives: flexible design, easy maintenance and improved controls for cost savings. Tim Schweikert, the school’s physical plant manager, liked Mitsubishi Electric’s Variable Refrigerant Flow (VRF) technology because it offered quiet operation and efficiency. As the only two-pipe VRF system, it would also allow for flexible design for a space-constrained building.

According to Schweikert, the VRF system has exceeded expectations: “When we compare our utility bill to the one from last year, it’s about the same. Keep in mind that we didn’t have air conditioning before and that this new bill includes at least 12 weeks of air conditioning. So it’s like we got free air conditioning.”

In addition to the school’s new cooling capabilities, the system has also performed well during one of Cincinnati’s coldest winters in 15 years. Despite temperatures dropping well below zero degrees Fahrenheit, the system kept up, providing exceptional comfort.

To learn more about the benefits of VRF in St. Ignatius Loyola School, be sure to check out the case study here.

Written by MitsubishiHVAC
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October 20, 2016, 9:00 am

Project Profile: Asbury United Methodist Church

The Asbury United Methodist Church (AUMC) in Harrisonburg, Virginia, has been welcoming guests through its doors for 228 years. Today, the church still offers religious services but also serves as a place for education and community activities. AUMC’s education and community wing totals 23,000 square feet of the building and quickly needed a long-term HVAC solution.

Pastor Bob Talbott and Bill Rees, AUMC’s chairman of the trustees, both agreed that the current HVAC system required too much maintenance, and that Variable Refrigerant Flow (VRF) was the perfect solution for the supplementary space. Rees said, “It was the efficiency and functionality that drew us to it – to be able to control individual rooms, to be able to schedule and change the temperature based on the comfort of the folks in the room.”

AUMC selected Blauch Brothers, Inc., Harrisonburg, to complete the project. Winston Rhodes, PE, design engineer, Blauch Brothers, felt Mitsubishi Electric was a wise choice. “Mitsubishi [Electric] was clearly the most field-proven; it has all the kinks worked out as the most mature product in the VRF line.”

Without going over budget, the installation was successful, and the result has been extremely positive for AUMC. The church now has the control and zoning abilities it wanted.

As Rees said, “The system has performed nicely given the variety of uses. Our education wing is used every day – morning, afternoon and evening. The big spaces are used, and the small classrooms are used. So it’s a variety of uses at a variety of times, and the Mitsubishi [Electric] system is performing very, very well.”

To learn more about the project, check out the case study here.

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August 4, 2016, 9:00 am

Project Profile: Boathouse District

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The Oklahoma River has a vibrant riverside filled with attractions and stunning architecture. The Oklahoma City (OKC) Boathouse District is central to that vibrancy, with six buildings offering athletic training facilities, event spaces, activities for children and adults, and more. All of those facilities need year-round cooling and heating, but they vary widely in square footage and usage. To meet such ranges across its six buildings, it’s no surprise that the five newest Boathouse District buildings use our VRF systems.

Here’s a brief look at those five facilities:

  • Devon Boathouse. This designated U.S. Olympic & Paralympic Training Site has “a little bit of everything across its 33,000 square feet,” said John Riggs, senior director of operations, OKC Boathouse Foundation. A facility with so many spaces, and with each space dedicated to occupant experience, required an HVAC system with advanced controls.
  • Chesapeake Finish Line Tower. The requirement to fully conceal all HVAC units – both indoor and outdoor – required a creative solution. In this case, the outdoor units were located in the basement.
  • CHK|Central Boathouse. Featuring a performing arts venue, art gallery and workout center, this boathouse has a wide variety of heating loads and unique spaces that all had to be acoustically sound.
  • SandRidge Youth Pavilion. This smaller space, with a high-level, contemporary look required the HVAC system to be discreet, while its ranging people loads required flexibility and speed in responding to adjustments.
  • RIVERSPORT Rapids. An architectural beauty and HVAC challenge, this space needed cooling and heating for a variety of spaces, and a way to conceal the outdoor units. In this case, the outdoor units were located behind a mechanical screen.

Five projects, five sets of challenges and five success stories. As Riggs said, “Working with the Mitsubishi [Electric] systems has been great. They’re unlike any other systems, and they’re fantastic. Very usable.”

To learn more about the Boathouse District and see images of its stunning buildings, check out the case study.

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July 21, 2016, 9:00 am

Comfort, Over the Airwaves

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In our newest radio ad, our “official-sounding scientist” takes listeners through the personalization abilities of our Zoned Comfort Solutions, emphasizing lower cost for greater comfort. It goes something like this –

Regulating the temperature in a car happens in one of two ways: either the air is on full blast, or the windows are open, often battering back seat passengers with whipping highway winds. Without either option, the car quickly becomes a mobile sauna. It’s difficult to regulate temperature in such a small space and for a relatively brief time, so it’s a necessary evil. That shouldn’t be the case in a home or office, however, where many rooms can satisfy many needs, yet that is exactly what traditional cooling systems do.

Catch this new ad over the airwaves to see for yourself how our official-sounding scientist captures this key messaging.

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June 20, 2016, 9:00 am

How Can More People Use Less Energy?

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Ensuring that everyone has a comfortable place to live is always a concern for municipal housing authorities, but as rental space is increasingly scarce and homeownership less frequent, increased low-income housing developments are a mainstay.  ProudGreenHome.com recently highlighted a low-income retrofit in Washington, D.C. – an area desperately in need of financially viable housing solutions. The challenge of low-income retrofits like these is designing high-capacity housing units with low energy consumption.

Specifically with low-income housing – which is primed for retrofit applications and caters to a variety of families and their needs – the challenge is two-fold. First: How do you conserve energy usage while trying to build larger facilities to house more people, inevitably requiring more energy consumption? Secondly: How do you provide quality, comfortable housing without being cost-prohibitive?

You may be involved in a large public works project. If so, keep in mind that our systems offer a compelling solution for energy efficiency. The ability to target specific zones and varying energy needs make our systems an appealing option for this type of retrofit since they help many families meet many needs. For example, the J.L. Young Apartments run by the Tampa Housing Authority, Tampa, Florida used our split-ductless solutions to reduce its yearly HVAC consumption by 1,149,980 kWh, equating to a yearly expenditure reduction of $97,207.

Projects like these illustrate just how effectively our systems can reduce energy waste and ensure that, regardless of how much energy is used, it is only energy that is needed.

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