If you could only choose one training topic, program, or class that had the greatest impact on your business, what would it be? The NEWS put that question to its contractor consultants and got some very mixed results.
It may not be splashed all over the media nowadays. But like the Energizer Bunny, mold keeps going and going. And, unfortunately for contractors, lawsuits keep coming and coming. And those contractors without mold insurance will be the ones hurting down the litigation road, warned Robert Snyder, who heads the Air Conditioning Contractors of America's (ACCA's) Insurance Service.
Coil materials can include copper, aluminum, and steel. But in some cases, choosing one of the three can still lead to more decisions. One recent development involves aluminum microchannel coils.
Picture yourself working inside a huge machine, tending to its maintenance. Suddenly the machine springs to life, powerful metal gears grinding around you, placing you in mortal danger. That is exactly the sort of terrifying scenario that lockout/tagout is meant to prevent.
Getting the system to deliver something close to the design airflow (measured in cfm) continues to be a challenge with many residential and commercial HVAC installations.
The newly formed Blue Hawk Distribution Cooperative was "established to ensure the survival and growth of the independent HVAC distributor," according to Nancy Hammer, Milwaukee Stove and Furnace Supply Co., and Blue Hawk board chairperson.
Like many industrial refrigeration contractors, Republic Refrigeration's territory has few geographical limits. The company is registered in 35 states, and while much of its work is throughout the Southeast United States, it has projects as far away as the state of Washington.
The most common and most costly of all refrigerant contaminants is oil. How prevalent is oil contamination in today's chillers? If the systems you work with aren't very new, odds are that they contain excess oil in the refrigerant, oil that is degrading chiller performance.
Daikin AC (Americas) Inc., which stepped into this country just over a year ago, received a shot in the arm. Its parent company, Daikin Industries Ltd., announced that it is acquiring O.Y.L. Industries Bhd, the Malaysian-based global HVAC company that owns U.S.-based McQuay International.
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