Articles Tagged with ''service''

Phone Apps, Field Techs: A Good Combination?

August 15, 2011
“App” has become such a common word that it will likely find its way into the dictionary soon. It certainly has found its way into everyday personal and business use by millions of Apple iPhone or Google Android smart phone users.
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Department of State Awards $14 Million Contract to Crockett Facilities Services

August 8, 2011
Crockett Facilities Services Inc. (CFSI), a leading provider of facilities operations and maintenance, mechanical contracting, and HVAC services to government and commercial clients, announced that it has received a five-year, $14 million contract from the U.S. Department of State to provide facilities management, operations, and maintenance services to two commercial buildings located in Washington, D.C.


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Ice Breaker: A Hot Compressor

August 1, 2011
Replacing a compressor is neither simple for a technician nor inexpensive for the customer. Before replacing a compressor, a technician needs to ensure that it is truly defective. Unfortunately, sometimes good compressors get replaced as a result of a misdiagnosed problem.
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The Professor: Loss of Air Conditioning Cooling

August 1, 2011
For this column I want to discuss a real life situation regarding poor cooling in a residence and reduced airflow coming from the registers in the house. The air conditioner is a three ton (36,000 btuh), HCFC-22, split type, air conditioner with the A-coil in the plenum of the furnace located in the basement.
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Tips on Controlling Humidity Levels (and Mold)

July 18, 2011
The good idea of sealing up a building to make it energy efficient had some unwanted side-effects. Lack of circulation or the inability of a building to breathe compounded the high humidity problem. Fortunately, the HVAC trade has remained a leader in providing information, answers, and products to combat the humidity problem.
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Btu Buddy 100: Dual-Voltage, Nine-Lead Motors

July 18, 2011
Btu Buddy has met Bob for lunch to answer some questions that Bob had about yesterday’s service call. Bob asked, “Why did that motor have two contactors and so many wires going to it? It seemed very confusing. I am glad that I tagged those motor leads when I disconnected the motor. I never would have figured out how to reconnect the leads.”
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Ice Breaker: Read and Record

July 4, 2011
When a refrigeration system fails, many times the cause can easily be diagnosed. However there are occasions when the cause cannot easily be determined - either the true cause is unclear or the technician is unsure of a problem. How do you work through these jobs? One method used by some techs is to “read and record.”
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Interest in HFC-407F Grows

June 27, 2011
Honeywell has announced that Bitzer has approved the use of HFC-407F (marketed by Honeywell as Genetron® Performax™ LT refrigerant in North America) as an HCFC-22 retrofit solution for medium-temperature systems, such as supermarket refrigerated cases.
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Btu Buddy 99: Large Compressor Motor Grounded

June 20, 2011
Bob got a call to go to a convention center where the air conditioning system was not working. It was a 75-ton unit with one compressor. The system was many years old, but had been functioning fine, until now. After checking out the unit, an ohm check showed 0 resistance to ground.
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Tips for High Speed Refrigerant Recovery

June 20, 2011
The increased use of high pressure refrigerants has created new challenges for technicians, yet it is still possible to perform high speed recovery of high pressure refrigerants. The tips and practices in this article will help keep your refrigerant recovery speeding toward the finish.
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