Each owner who has spent millions of dollars on a new or refurbished building has every right to expect that the mechanical systems will keep tenants comfortable, while delivering every Btu and saving every kilowatt-hour possible. Commissioning agents make sure it really does happen that way.
There is a unique community development program underway in Phoenix that is bringing together manufacturers, architects, engineers, general contractors, sub-contractors, and the community to erect LEED platinum designed school structures built entirely by volunteers.
Von Kopfman, co-owner of Blue Dot Services in Topeka, Kan., is a survivor. What have he and his family had to endure and how have they used that pain to help others?
Parker Hannifin has announced what it described as “new real-world testing capabilities” with the launch of Sporlan Supermarket Test Lab in Washington, Mo. It is said to “mimic a wide spectrum of real life supermarket operations.”
With the growing acceptance of social media in business, many of the social debates have shifted from if an HVAC contractor should employ social media to how to govern its use. Enter social media policies. These policies can help protect contractors and their companies from libelous or malevolent online conduct from employees.
The concurrent 21st International Compressor Engineering Conference, 14th International Refrigeration and Air Conditioning Conference, and 2nd International High Performance Buildings Conference showed how dramatically the issue of global warming is impacting the refrigerant aspect of the HVACR industry and how complex the issue is.
As the supermarket industry continues to embrace so-called ‘natural refrigerants,’ manufacturers also continue to seek improvements in energy efficiency with what they hope is easy to use equipment for service technicians. The FMI Food Retail Show was a major showcase for these developments at this year’s show in Dallas.
Many service technicians believe that frost on a suction line or on the compressor’s head itself indicates there is liquid refrigerant coming back to the compressor. Is this really true?
As of now, the sole mode of enforcement for the pending regional energy efficiency standards will come in the form of a new-look Energy Guide sticker. While DOE may ultimately move forward with another enforcement proposal, the only one being put into motion at this time is an alteration to the FTC’s Energy Guide labels.
One type of starting relay used on fractional-horsepower compressors is the current relay. A defective current relay can cause a compressor not to start. One popular method of troubleshooting this type of starting relay is with an ohmmeter.
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