The capillary tube has been used as a refrigerant metering device for many decades. Many HVACR manufacturers are still successfully employing capillary tube metering devices in their latest equipment. Cap tubes are mainly used because of their simplicity and low cost.
According to statistics released by both ARI and GAMA, the industry as a whole has been on the economic upswing during the past few years, and the year-end figures for 2004 have inspired a lot of optimism as 2005 gets under way.
After almost 30 years in sales, I have come to believe that one of the most important skills any sales professional must master is the ability to manage one's fears.
Examining the evaporator during the freeze cycle can aid in identifying many common problems associated with commercial ice machines. How the ice is formed or not formed on the evaporator can allow a tech to easily determine several common problems associated with ice machines.
Upwards of 90,000 housing professionals descended on Orlando Jan. 13-16 for the International Builders' Show (IBS). There were plenty of HVAC manufacturers on hand, and plenty of products sure to catch the eye of a contractor.
Even though the Air-Conditioning, Heating, Refrigerating Exposition (AHR Expo) is just around the corner, and will also be held at the Orange County Convention Center in Orlando, Fla., several HVACR manufacturers decided it was in their best interests to exhibit less than a month earlier at the International Builders' Show (IBS).
Comfort Systems USA Inc., a provider of commercial, industrial, and institutional HVAC services, announced that it had acquired Granite State Plumbing & Heating from KeySpan Corp., a New York-based natural gas and electric utility.
Danfoss Refrigeration & Air-Conditioning Division recently sponsored the first annual Bennett Blazers Sled Hockey Tournament at Ice World in Abingdon, Md. The Bennett Institute Physically Challenged Sports Recreation Program of Kennedy Krieger supports athletic programs for physically challenged athletes.
Heatcraft Refrigeration Products announced its 2005 Beacon II training seminar dates for refrigeration contractors and technicians. The one-day seminars are located throughout the country and run through April 21.
Chillers are the single largest energy-using component in most facilities and can typically consume over 50 percent of the electrical usage. This article details steps that can be taken to help maximize chiller efficiency.
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