If a technician working in a supermarket mechanical room doesn’t sense the person in charge watching over his or her shoulder, it may be that the boss has other matters to consider. Those matters could well impact what the technician is working on and what his or her paycheck looks like.
To prevent overheating of a hermetic compressor’s internal motor, some type of cooling method must be employed. Compressor manufacturers will use one of three methods to provide the necessary cooling for their motors.
Some of the best reasons for having a properly managed inventory control system include increased profits and having money in the bank. How so? David Rosenthal said it is as simple as looking at the example of a $20 part in the stockroom.
Technological innovations, ranging from ice machines to large chillers, were in evidence throughout the floor of the 27th International Trade Fair for Refrigeration, Air Conditioning, Ventilation, hosted in Nuremburg, Germany.
If automobiles need fuel to run, then businesses need cash to run. That’s the equation drawn by Tom Buckley, who gave a seminar at the fall meeting of Aireserv Heating & Air Conditioning franchisees. He said “Without cash you are always in a crisis mode - keeping vendors from cutting you off or being unable to make your payroll.”
For contractors and technicians in Europe, July 4, 2007 will mark the beginning of a process that will probably lead to strict training and certification requirements to work on HVACR equipment, along with more detailed recordkeeping and the end of the use of disposable refrigerant cylinders.
Let’s say one of your customers has been complaining for three weeks of warm products in a low-temperature, glass door reach-in freezer. The store owner inspects the thermometers in the case and notices that the temperature will not pull down below 15°F.
The conference theme of the 2006 annual convention of the Sheet Metal and Air Conditioning Contractors' National Association (SMACNA) was Discover the Elements. That was not a bad choice, especially since the meeting was held in the breathtaking surroundings of the JW Marriott Desert Ridge Resort & Spa.
Last year's record-breaking numbers, primarily due to the 10 SEER deadline and 13 SEER mandate, created an exceptional pace for 2005. After January and February of this year, the predicted cooling off of a/c factory shipments noticeably materialized.
Replacing both the indoor and outdoor unitary system coils is "the only way to offer a customer an ARI-certified matching system," said Drew Cameron, HVAC Sellutions. "We are using certificates from the ARI Website to differentiate ourselves and eliminate competition."
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