DES PLAINES, IL — The Refrigeration Service Engineers Society (RSES) Technical Institute recently released a series of specialized CD-ROM-based training programs called CBT3 (Computer-Based Technician Training and Troubleshooting).The CDs allow
What is the “standard of care” for HVAC contractors working in your part of the country? If a customer sues you because HVAC work you performed for them led to indoor air quality (IAQ) problems, you had better know what the standard of care is for your profession.
After the collapse of the World Trade Center towers Sept. 11, people in the vicinity faced a new threat: the sudden release of tons of dust and debris into the air. Early reports warned of asbestos risks, then stated that the levels in the air were much lower than anticipated. Many people didn’t believe it.
Humidity and its control have been receiving greater and greater attention, especially their relationship to good or poor indoor air quality (IAQ). So it’s no wonder that an American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) seminar explored “Practical Aspects of Humidity Measurement.”
As the nation continues to grapple with increasing mold problems indoors, it is clear that ventilation and moisture play key roles in feeding mold and then spreading it. The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) has been questioning whether its own standards, specifically 90.1 on energy-efficient buildings and 62 on indoor air quality (IAQ), have contributed in a significant way.
Today’s centrifugal chillers offer some of the highest efficiencies ever. The technology may be more advanced, and the refrigerants are newer, but some things remain the same: the systems’ need for regular maintenance.
HONOLULU, HI — The American Society of Heating, Refrigerating and Air-Conditioning Engineers’ (ASHRAE) ventilation standard provides new design guidance for controlling odor in indoor spaces where smoking occurs. The addendum
The new Delta Pinnacle Hotel in Vancouver is a gem. But The News bypassed the lobby, spacious suites, and sweeping views. They’re nice, but we prefer to visit with director of engineering Victor Pankrantz, whose main interest is the care and operation of Trane chillers installed in the basement, Baltimore Aircoil cooling towers on a mezzanine-level rooftop, and Trane fancoils behind walls and ceilings.
Oil in refrigerant — many chillers have too much, and it’s lowering system efficiency in a big way, coating evaporator coils and affecting heat transfer surfaces. A new product is said to address the problem of too much oil in the refrigerant, while keeping the oil at a level that actually helps system efficiency, according to Mark Key, vice president of component manufacturer Redi Controls.
Eight outdoor units or one? Sixteen refrigerant line penetrations or two? The choices looked like a no-brainer for a contractor installing ductless air conditioning in Overlook Hospital’s Sleep Clinic: the fewer, the better.