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Btu Buddy 18: Compressor With Refrigerant Flooding Back

September 17, 2004
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In this edition of the Btu Buddy series, Bob works on a system that is not cooling properly and finds that refrigerant is flooding back to the compressor. Btu Buddy aids in pinpointing and curing the problem.
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Maintenance Of Residential Split System Air Conditioners

September 3, 2004
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This article provides some maintenance recommendations for technicians for their annual air conditioning system inspections.
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Btu Buddy 17: Examining A Cooling Tower Problem

August 21, 2004
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In this installment of the Btu Buddy series, Bob works on a water-cooled chiller with a high-pressure control that has the unit off. Btu Buddy assists him in inspecting the cooling tower and finding the problem.
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Modern HVACR Service And The Contractor's Bottom Line

August 5, 2004
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Contractors are facing increasing pressures to be more productive. Armed with the proper tools and knowledgeable staff, savvy contractors can overcome today's challenges.
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Btu Buddy 16: Troubleshooting A Water-Cooled Condenser

July 23, 2004
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In this edition of the Btu Buddy series, Bob is called to a motel that is having a chiller problem. Btu Buddy guides him through his first job on a water-cooled unit.
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Determining Airflow Using A Voltmeter And Ammeter

July 9, 2004
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Measuring airflow can be difficult and time consuming, but it can be useful to troubleshooters. An easy method of measuring the airflow through a system that uses electric heaters is provided here.
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Btu Buddy 15: Quickly Cooling A Hot Hermetic Compressor

June 25, 2004
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In this installment of the Btu Buddy series, Bob encounters a hot hermetic compressor and learns how to troubleshoot and diagnose the system problem.
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The Disastrous Effects Of Deferring Maintenance

June 12, 2004
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Attempting to force maintenance spending into specific lumps of time that do not meet the needs of our machines creates the need to defer maintenance. Maintenance budgets fail because budgeting authorities do not understand the disastrous consequences of deferring maintenance.
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Using Smart Tools In HVACR

May 28, 2004
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There are lots of useful tools for electrical work. To this day, we really can't tell that much about the refrigeration circuit. Here's a tool to help solve refrigeration circuit problems.
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Btu Buddy 14: Fixing A Chronic Leaking Residential A/C Unit

May 14, 2004
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In this edition of the Btu Buddy series, Bob learns the proper procedures for finding and fixing a refrigerant leak in a residential air conditioning unit.
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