Extra Edition

Btu Buddy 135: Water-Cooled Chiller Problems - Part 1

June 23, 2014

Bob and Tim were on their way to a no cooling call at an office building with a 100-ton water-cooled chiller. As always, management was in a hurry to get the problem solved because the tenants were hot.


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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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Obesity as a Disability: Complying with the Latest in ADA Rulings

Employers Need to Understand How the ADA Affects Their Workplace
June 23, 2014

The U.S. Equal Employment Opportunity Commission (EEOC) and now some courts are considering obesity a disability, and employees who are severely overweight may qualify for protections under the Americans with Disabilities Act (ADA).


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UK Considers Organic Rankine Cycle

Brunel University Researchers Ponder Country’s Energy Capacity Concerns
June 23, 2014

Energy that is recovered can be used in another part of the process or can be converted to “high value” electrical power. A technology that can achieve the latter is the Organic Rankine Cycle (ORC).


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Medical Center’s HVAC Design Boasts 18 Percent Energy Savings

Design Uses Air Curtains on Entrances as well as High-Efficiency Chillers, Boilers, and Rooftop Units
June 23, 2014

The University of Pittsburgh Medical Center (UPMC) set out to make the new $252 million Monroeville, Pennsylvania, facility the most sustainable of its 30-hospital network. Its design team delivered a building that’s saving an estimated $350,000 to $500,000 in annual energy savings. 


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Study Tests Effectiveness of Rooftop Unit Preventative Maintenance

Looks at Whether Retailers Save Money by Minimizing Risk of Equipment Failure and Reducing Service Calls
June 9, 2014

Alpine Mechanical Services has announced the completion and results of a collaborative energy efficiency study on rooftop units conducted by Alpine Mechanical, Siemens Industry, and Nexant. The study tested the efficacy of HVAC preventative maintenance best practices in a retail environment.


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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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Is It Really All About Price?

If You Think the Majority of Customers/Prospects Leave Looking for a Lower Price, You Are Wrong
June 9, 2014

It’s all about price, isn't it? That's why every company that sells high-end items is going out of business. But wait a second; they are not going out of business. In fact they are profiting like never before.


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The New F-Gas Is Here. Don’t Panic. Don’t Do Nothing

Want A Quiet Life After R-22? Think Again – It’s Time to Embrace a New Way of Working
June 9, 2014

Welcome to year zero. The waiting is over and the F-Gas regulation has passed into law and life as we know it changes forever. Over-dramatic? Well, it will be a dramatic shift for everyone in the industry who thus far have somehow managed to avoid all the noise from the supermarkets about the need to move away from HFCs.


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Airedale Chiller with Low-GWP HFO Refrigerant to Cool New John Lewis Store

R-1234ze Has a Global Warming Potential Lower Than One, Better Than CO2
June 9, 2014

The first UK-manufactured chiller incorporating the low global warming potential (GWP) HFO refrigerant R-1234ze is now cooling shoppers visiting the new £15 million John Lewis department store that opened in York.


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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: Michael Willburn

Michael Willburn, president, Infloor Heating Systems, joins the program to discuss his company, radiant heating, industry trends, and whether contractors are becoming more interested in radiant heating. Posted on July 11.

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2014 July 21

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2014 National Plumbing & HVAC Estimator

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