HVACR service personnel always need to think safety first when working on equipment. The information in this article is intended to provide an overview to assist in the safe service and maintenance of systems.
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 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.
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.
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.
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.
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?
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.
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.
Photos from the 2013 ACCA Conference & IE3 Expo in Orlando, Fla.
Podcasts
Cade Clark, assistant vice president of government affairs for the Air-Conditioning, Heating & Refrigeration Institute (AHRI), gives a brief overview of the new version of the Shaheen-Portman bill, what AHRI thinks of the energy-efficiency legislation, and how it might affect the HVACR industry if it becomes law.
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