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Home » Topics » HVAC Engineering Sectors » Commercial HVAC

Commercial HVAC
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VRF for Institutional Occupancies

An Examination of Redundancy, Ventilation, and Codes on VRF Systems in Institutional Settings

VRF for Institutional Occupancies.
Bill Artis
March 25, 2019

The International Building Code defines institutional occupancies under Institutional Group I and includes the use of buildings or structures where care or supervision is provided to persons who are or are not capable of self-preservation without physical assistance.


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A non-exhaustive overview of belt

The Differentiation of Belt Drive and Direct Drive Fans For Industrial Processes

A non-exhaustive overview of belt and direct drive fans for industrial fan applications between 1-250 hp.
Khalil Kairouz, Ph.D., P.E. Dale Price
March 22, 2019

While both belt and direct drive fans have been around for a long time, the mainstay fan for most industrial fan applications under 250 hp has been the belt drive fan.


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PRESCRIPTIVE AND PERFORMANCE

Boilers: Prescriptive or Performance — That is the Question?

Examining why boiler part-load efficiencies should be taken into account in all energy-related ventures.
Raimundo A. Ramos
March 20, 2019

In 1973, an energy crisis led to the development of ASHRAE Standard 90. This event served as a catalyst for the creation of building design efficiency requirements, which eventually led to the creation of what is now known as the energy code for buildings.


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ASHRAE Announces Move to New Net-zero Headquarters at Winter Confernece

ASHRAE Announces Move to New Net-zero Headquarters at 2019 Winter Conference

Building a new energy future
Herb Woerpel
Herb Woerpel
March 18, 2019

 ATLANTA — ASHRAE is poised for a busy year in 2019. At its 2019 Winter Conference in Atlanta, the 56,000-member engineering association introduced a lengthy agenda that included renovation of a new net-zero world headquarters, the signing of a memorandum of understanding with the Pakistan HVACR Society (PHVACR), a pledge to prepare building professionals for the challenges and opportunities of designing efficient and grid-responsive buildings within the changing energy sector, and more.


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The Next Step in Innovation

AHR Expo Innovation Award Winners Take the Next Step in Innovation

The HVAC industry continues to evolve, but what does the future of the built environment look like? Engineered Systems’ editors turned to the winners of the AHR Expo’s Innovation Awards to get their take on where HVAC trends and technology is heading.
James Siegel
James J. Siegel
March 15, 2019

Each year, the AHR Expo honors manufacturers that are looking forward and breaking new technological ground. Those manufacturers are presented with Innovation Awards covering 10 categories, including building automation, ventilation, heating, cooling, IAQ, and more.


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AGC

AGC urges Congress to pass Restoring Investment in Improvements Act

March 14, 2019

The Associated General Contractors (AGC) of America is urging Congress to pass bipartisan legislation to set a 15-year timeline for depreciating improvements to commercial properties.


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Facility Files

Facility Files: A Boiler Retrofit at a 40-building Campus

Amanda Parolise
March 13, 2019

This month’s Facility File focuses on the March Back2Basics retrofit of a campus-wide hot water boiler system covering 40 buildings with primary-, secondary-, and tertiary-pumping based on a performance lease agreement to retro-commission the system with a guaranteed operating savings. The university will hire an owner representative to work with a design-build-operate-maintain performance contractor (PC).


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Phil Zito

A Continued Discussion on Open Protocols, Open Procurement, and Open Systems

An open discussion on open systems
Phil Zito
Phil Zito
March 8, 2019

Honestly, the definition of open systems is the most confusing of the three types. Open protocols are pretty straight forward — they’re protocols that communicate with one another.


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Commissioning

Minimize Cost, Frustration By Exceeding Each Project's Phase-by-phase Expectations

Clearly defining phase-by-phase expectations can help minimize cost and frustration on a project.
Rebecca T. Ellis, P.E.
March 6, 2019

Much has been written about systems’ readiness for functional performance testing at the end of construction, and pre-functional checklists have become common elements of the commissioning process.


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Johnson

Johnson Controls to host grand opening of new HVAC manufacturing, testing facility

March 5, 2019

Johnson Controls is set to unveil its HVAC rooftop unit manufacturing and testing facility located in Norman, Oklahoma.


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