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Home » Topics » HVAC Contracting

HVAC Contracting
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The Basics of Combined Heat and Power

An overview of CHP systems and their benefits
October 19, 2015

Combined heat and power (CHP), also known as cogeneration, is the simultaneous production of electricity and heat from a single fuel source, such as: natural gas, biomass, biogas, coal, waste heat, or oil. CHP is not a single technology, but an integrated energy system that can be modified depending upon the needs of the end user.


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Taking Steps to Minimize Workplace Violence

Understand the risk factors and develop policies to minimize the opportunity for violence
Richard D. Alaniz
October 19, 2015

Companies can take steps to minimize the chances of workplace violence by understanding what the risk factors are and developing policies to minimize the opportunities for workers to be victims of such conduct. Due to the realities of workplace violence, companies should create policies and procedures for when violence does break out.


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4-Pipe Climate Control Technology Launched for 2-Pipe Installations

Provides hotel rooms with individual climate control so that hotels can provide a better guest experience
Julian Milnes
October 19, 2015

Nippon PMAC has launched 4-pipe system climate control technology for existing 2-pipe installations with no structural alteration required. The system, known as PAFMAC, provides hotel rooms with individual climate control so that hotels can provide a better guest experience while increasing their own profit margins.


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Display Cases Attain 17% Energy Savings Using R-441A Refrigerant vs. Propane

Offers a quicker pull-down time compared to other refrigerants
October 19, 2015

MTL Cool said its new line of display cases using R-441A offers improved efficiency compared to units running on either R-134a or R-290 (propane), with test data showing that the first of this line, the new NRC2 system, runs on a 17 percent lower charge and requires 17 percent less energy compared to units running on R-290.


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Breaking a Sweat: An Airman’s HVAC Journey

Airman 1st Class Jedadiah Floyd focuses on improving quality of life
Deana Heitzman
October 5, 2015

The sweat gleams across his forehead as he steps out into the sauna-like air. With tools in hand, he begins walking toward his objective, providing the greatest of summer relief, air conditioning.


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Self-Generating Energy Helps California Avoid Blackouts, Lower GHGs

Flow and power monitoring key to a successful program
Jack Sine
October 5, 2015

If you remember the rolling blackouts suffered by Californians in the years 2000 and 2001, you may also remember that they cost companies in excess of $50 billion in lost manufacturing capacity and sales. What you may not remember is the good that came out of that disaster.


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Employers Reveal Biggest Resume Blunders in CareerBuilder Survey

Applicant who claimed to be HVAC certified later asked hiring manager what HVAC meant
October 5, 2015

Perhaps it is the desire to stand out that compels some job seekers to include some unnecessary, inappropriate, or downright untrue information on their resumes. For its annual survey, CareerBuilder asked hiring managers to name the biggest blunders they have caught on resumes — from innocent gaffes to obvious lies.


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Dearman Opens Clean Cold and Power Technology Centre

Facility claimed to be ‘world’s first’ is opened in Croydon, London
October 5, 2015

Joined by the Minister of State for Universities and Science, Jo Johnson, at the official opening of its Clean Cold and Power Technology Centre, the new facility is home to Dearman’s research and development activities, including the delivery of a range of zero-emission cold and power technologies.


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ABM to Reduce Wyoming County’s Energy and Operating Costs by $3.9 Million

Energy and facility improvements at public buildings expected to reduce costs by 33%
October 5, 2015

ABM, a leading provider of facility solutions, announced its ABM Building Solutions business is performing extensive energy and facility improvements to public buildings throughout Wyoming County in Pennsylvania.


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Btu Buddy 150: Leak in a Cooling Coil

Bill Johnson
September 21, 2015

Bob and Tim were on a job where one of the other technicians had been having a hard time with a persistent leak. He thought the leak was somewhere in the indoor unit, but he could not pinpoint it.


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July 22, 2026

Designing VRF Systems Using A2L Refrigerant

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