Technical

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ARTICLES

Rise in Brownouts Creates Opportunity for HVAC Technicians

Study Shows Homeowners Understand the Risks, but Are Not Proactively Protecting Air Conditioners
July 21, 2014

Only two out of ten (22 percent) of United States homeowners protect their major appliances, including air conditioners, from brownouts and other power quality issues despite the fact that nearly nine in ten (87 percent) understand that a brownout can damage these same major appliances, according to a new study.


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H&H Event Showcases Products, Offers Seminars

A Forum for Customers and Manufacturers to Learn from Each Other
July 7, 2014

Mechanicsburg, Pennsylvania-based manufacturer’s rep firm, H&H Sales Associates Inc., recently held a “Customer Appreciation Day” product show and open house attended by hundreds of mechanical system installers and designers and consulting-specifying engineers.


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NREL Hosts Zero-Energy Home Competition

Students Presented Their Designs to Juries of National Experts
June 23, 2014

The campus of the U.S. Department of Energy’s (DOE’s) National Renewable Energy Laboratory (NREL) played host to 28 teams of university students and building industry experts who converged at the lab for the Challenge Home Student Design Competition.


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Water-Cooled Technology Cuts Costs

Also Provides Reduction in Peak Demand
June 9, 2014

This analysis shows how a water-cooled 500-ton chiller system when compared to a 500-ton air-cooled chiller system results in approximately $45,000 in annual operating costs savings. Additionally, the water-cooled system reduces peak energy demand by 45 percent.


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Optimizing Hotel Efficiency and Comfort

System Provides Intelligent Energy Management
May 19, 2014

The challenge presented by Neema Hospitality, Mechanicsburg, Pennsylvania, was that the company wanted to maximize energy efficiency while maintaining guest comfort and loyalty, improve profitability without increasing room rates, and augment operational efficiency with remote monitoring capability.


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Hands-Free HVAC Troubleshooting and Diagnostics

System Approach Makes Troubleshooting Faster, Easier, and More Affordable
May 5, 2014

Among the more stressful challenges facing HVAC service providers is meeting customer demands for rapid diagnosis and repair of their systems. For many HVAC contractors the solution can be found in a compact electronic measurement system that can monitor and log the status of all HVAC functions.


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Avionics Mil-Spec Part Solves Commercial HVAC Temperature Stability Problem

Part Maintains Setting and Avoids Repeat Service Calls
April 21, 2014

Modifying an off-the-shelf control knob used in avionic systems stopped repeated service calls for a major maker of commercial rooftop units. Electronic Hardware Corp. (EHC) was able to change its standard PT70 control knob to fit on a small circuit board inside the different HVAC models.


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Natural Ventilation: Keeping Health Care Buildings Healthy

For an Energy Efficient Solution, Natural Ventilation Should Be Fully Automated
April 7, 2014

Keeping large buildings well ventilated has always been a challenge. In health care buildings especially, supplying clean fresh air is of utmost importance to prevent CO2 and other contaminants from accumulating. The answer to energy efficient, healthily ventilated ambient environments? Natural ventilation.


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Technology Advancements Create New Air Curtain Applications

Air Curtains, or Air Doors as They Are Also Called, Are Finding Broader Use
March 24, 2014

There has been a deluge of recent technological advancements that are creating new air curtain applications that were barely imaginable 10 years ago. Advancements have ranged from more efficient electric heaters to manufacturing improvements that now extend lengths up to 16 feet.


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Customizing PTFE Seals and Gaskets for Enhanced Performance

Not All Seals and Gaskets Are the Same; Here Are Some Performance Characteristics and Other Factors to Consider
March 10, 2014

When it comes to the supply of the PTFE seals and gaskets commonly used in combination with other parts that make up many components and assemblies, there are a number of important factors that specifiers need to consider, according to industry experts.


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2014 ACI Home Performance Conference

The 2014 ACI National Home Performance Conference & Trade Show was held in Detroit.

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NEWSMakers: Doug Dougherty

Doug Dougherty, president and CEO of the Geothermal Exchange Organization (GEO) joins the program to discuss the latest happenings with GEO, including the drive to get included in state and federal definitions of renewable energy, plus the future of geothermal.  Posted on July 25.

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R-22 PHASEOUT POLL

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2014 National Plumbing & HVAC Estimator

Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

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