Articles by Joe Marchese

Ice Breaker: Using Technology as a Service Tool

There are many aspects of a technician’s job where a smartphone or tablet can be extremely useful. These devices allow a technician to search the Internet for technical information while on the job. 


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Ice Breaker: Hydrocarbon Refrigerants

Gone are the days of the three basic refrigerants: R-12, R-22, and R-502. Today’s technicians need to be well-educated on all of the refrigerants they encounter.


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Ice Breaker: Hand Tool Safety

Many careless injuries are the result of rushing to complete a task and not taking the necessary time to do it right.


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Ice Breaker: Choosing the Right Multimeter

When it comes to choosing a multimeter for servicing refrigeration systems, there are a lot of choices on the market. Careful planning should go into selecting the right meter.


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Ice Breaker: Taking an Oil Sample Without an Oil Plug

Checking the acidity and/or moisture content of refrigerant oil is one of the methods used to test if a refrigeration system is clean and uncontaminated. But how can you take an oil sample without an oil plug?


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Ice Breaker: Troubleshooting Controller Inputs

Today more and more systems are incorporating microprocessor controllers into their design. Troubleshooting the operation of these controllers can be a little tricky at times, but if broken down into sections it can be easier to handle.


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Ice Breaker: The True Refrigeration Professional

I have always been impressed with the true refrigeration professional; the type of guy that not only is able to fix a problem, but also understands the why behind the problem. These guys are not satisfied with just knowing how to replace a failed component . They want to know why it failed.


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Ice Breaker: Troubleshooting Current Relays

One type of starting relay used on fractional-horsepower compressors is the current relay. A defective current relay can cause a compressor not to start. One popular method of troubleshooting this type of starting relay is with an ohmmeter.


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Ice Breaker: Maintenance as an Energy-Saving Tool

An effective means of building any refrigeration contracting business is to sell maintenance agreements. Maintenance agreements help to build a strong customer base and even out the workload throughout the year. Is there something else they do for a contractor?


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Ice Breaker: Creating an Electronic Library

Manufacturers are increasingly designing their systems with unique controls and features that may apply only to their systems. Servicing, installing, and maintaining these new systems can be challenging. Sometimes they require us to reference material provided by the system or component manufacturer. Without this reference material, servicing, installing, or maintaining many of these new systems may be quite difficult or at times even impossible. What is a contractor to do? 


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Scenes from the 2014 World Energy Engineering Congress in Washington, D.C.

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NEWSMakers: Ed Purvis

Emerson Climate Technologies executive president and business leader Ed Purvis discusses HVACR industry trends, the strength of the industry, and Emerson’s new innovation center. Posted on Dec. 26.

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