In this fourth installment of the Btu Buddy series, Bob catches a service call and goes through the procedure for properly cleaning a dirty condenser.

Start-Up And Winterizing Of Evaporative Cooling Equipment

July 13, 2003

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These tips apply to cooling towers, closed circuit coolers, evaporative condensers, and closed circuit industrial coolers. Proper winterizing, spring start-up procedures, and scheduled periodic maintenance will prolong the life of the equipment, and help ensure trouble-free performance.

Rooftop Systems: Tips For Maintaining Peak Performance

June 25, 2003

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Rooftop units require regular visual inspection, filter changes, lubrication, and other service and maintenance regimen to keep performing efficiently. These tips will help you maintain large rooftop equipment (15 ton and above) for peak performance while actually reducing maintenance hours.

Btu Buddy 3: Charging A System With A Fixed Bore Orifice

June 15, 2003

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In this installment of the Btu Buddy series, Bob gets a service call from the dispatcher who says a residence with a very sick lady is getting very hot. Bob needs to cool off a hot compressor and get the A/C system working quickly.

Applying The Predictive Approach To Maintenance

May 30, 2003

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By helping your customers apply the predictive approach to maintenance, downtime can be avoided and costs can be reduced. The advantage to the service contractor is that maintenance work can be planned and performed on a regular schedule.

Btu Buddy 2: Charging A System After Loss Of Charge

May 16, 2003

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In this second installment of the Btu Buddy series, Bob and Btu Buddy perform an emergency service call. They determine the most efficient way to repair and charge an air conditioning system for an office building.

Factors That Make A Successful Maintenance Organization

April 29, 2003

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Most of us believe that technical expertise is the most important factor in building a successful maintenance organization. However, we all know excellent technicians that fail in the service business. Why do they fail, or why do they fail to grow?

Btu Buddy 1: Servicing A Frozen Suction Line And Compressor

April 17, 2003

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Bob has a buddy in the business. He recalls his long-time HVACR mentor and imagines him accompanying him as “Btu Buddy,” someone who reminds him to take time to stop and think before rushing to judgment, helping keep him on the right track.

Proper Use Of Superheat Measurements

April 3, 2003

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With increasing energy costs and demand for more efficient cooling systems, the need for accurate superheat measurements has become more important. Unfortunately, some technicians have either forgotten what they were taught about superheat in school or think it’s too much trouble to perform.

Twelve Solutions For Fixing Common TEV Problems

March 18, 2003

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Most refrigeration equipment breakdowns are repeat problems to some degree. The purpose of this article is to cover the higher percentage problems and repair procedures of TEVs in supermarket applications.

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