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Home » Topics » HVAC Contracting » Technical

Technical
Technical RSS Feed RSS

Geothermal Helps Show House Dig Deep for Energy Savings

Greg Mazurkiewicz
February 6, 2012
The 2011 Idea Show House, located in the Creekside Village community in Shelby Township, Mich., is a stylish 4,000-square-foot home that features innovative design and green, sustainable living. One of its primary green features is a geothermal heating and cooling system.


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The Advantages of Polypropylene Piping for HVAC Applications

Steve Clark
January 23, 2012
While it’s often viewed as “new” and lumped in with other plastics, polypropylene pipe has in fact been used around the world for nearly 40 years and is highly engineered — offering HVAC application benefits that many other plastics can’t. It also offers several advantages over metal HVAC pipe systems.


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Honeywell Technology Featured in New Sustainability Research Center

January 9, 2012
Featuring advanced building controls, sensing technology, and management software from Honeywell, the Centre for Interactive Research on Sustainability (CIRS) will serve as a leading academic hub to test and advance sustainable technologies before broader implementation.


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Tips for the Installation and Use of Backup Generators

Hartford Steam Boiler Offers Information for Safe Use and to Help Prevent Loss
December 19, 2011

Consumers and businesses are expected to purchase thousands of backup generators as a result of recent record power outages in the Northeast, but the Hartford Steam Boiler Inspection and Insurance Company (HSB) warns that improper installation can cause fires, property damage, and even serious injury or death.


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More Fans or Fewer: Optimizing VFD Control

Brian Dolin
December 5, 2011
This article compares three schemes of fan control used on large air conditioning and refrigeration condensers. The first scheme is step control; the second is a hybrid with a VFD on only one bank of fans, while the rest remain step controlled. The final, and most efficient, scheme is VFD control of all fans, at all times.


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Fuel Cells Growing in Use in U.S., Especially in CHP Applications

November 21, 2011
In a little more than a year, 34 major corporate customers have installed, deployed or purchased more than 250 fuel cell power systems and hundreds of backup power units, totaling more than 30 MW of power. “The Business Case for Fuel Cells 2011: Energizing America’s Top Companies,” profiles this select group of companies.


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Designed to Simplify: Grooved Mechanical Piping Benefits

David L. Hudson
November 7, 2011
Grooved mechanical piping has been changing the way contractors do business for more than 85 years, but this method of pipe joining is still unknown or misunderstood in some areas of the commercial building industry.


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Data Loggers Help Keep Guests Comfortable at Marriott Hotels

October 24, 2011
When a plumbing, heating or cooling snafu occurs in one of the 13 Marriott hotels under his supervision, it is John Miller’s job to root out the problem and preserve the comfort of guests.


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Contractor Reduces Setup Time With Electronic Controller

October 10, 2011
Setting up a refrigeration condensing unit for a walk-in cooler can present a challenge in foodservice applications.


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More Products That Save the HVAC Way

October 10, 2011
Saving energy saves dollars. Continuing the theme of the feature story “Saving the Day the HVAC Way” in this issue, here are a few more products that offer end users energy efficiency savings.


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