Aug 2021
Troubleshooting: A Tale of Two Temperatures
A couple of years ago, our company picked up a new account. The client was a typical refrigerated warehouse that was used to servicing retail convenience stores and small supermarkets.
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Jul 2021
The Importance of Condensing Unit Maintenance
Maintenance in condensing units involves many different aspects because of the series of components that require checking and cleaning. Each technician will have their personal working methods in the field.
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Jul 2021
Part 1: Fundamentals of Electricity
The dictionary defines “electronics” as “a branch of physics that deals with the emission, behavior, and effect of electrons, especially in vacuum tubes, photoelectric cells, and solid-state devices.” The aim of this feature is to help readers become more familiar with the basic concepts of electronics, especially as used in the HVACR industry.
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Jul 2021
Leading Off: RSES Helps Build Better Technicians
It should not be a big surprise to you that all of the trades, including HVACR are experiencing a technician shortage. Instead of just complaining about it, RSES Regions 8 & 11 Director Brynn Cooksey, CMS, RCT is doing something about it. Brynn could not hire enough qualified technicians, so he developed an internal training program, and got it approved by the Michigan Department of Labor as a registered apprenticeship program (see pg. 35).
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Jul 2021
Troubleshooting: More Learning on Gas Defrost Systems
I have been installing and servicing supermarket units for more than 15 years. Rarely do I have a service problem come up that causes my fellow techs and I to have to dig real deep to find the solution.
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Jul 2021
Air Treatment Requirements for Indoor Grow Operations
RSES and RSES Journal recognize that grow operations are not legal in all areas of the world. Since the author resides in Canada and RSES Journal is distributed to RSES Canada Member, where grow operations are legal, both organizations want it to be known that this article is being published for informational purposes only and it is not meant to be a legal guide into any aspect of grow operations. RSES, RSES Journal, Danfoss and their respective affiliates cannot be held accountable for individual actions of readers that occur as a result of publishing this information. Any HVACR industry professional interested in pursuing this marketplace is responsible for ensuring they are doing so within the legal parameters of the city in which they operate.
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Jul 2021
Last Word: Don't Let the Heat Get to You
It is getting very hot out there. Right now, we’re in the thick of summer and cooling season is in full swing. The irony of that is while customer comfort is top priority the technician that is usually in extreme heat conditions while installing or repairing air-conditioning units. This can lead to things like heat stroke and other heat-related illnesses that could be very dangerous.
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Jun 2021
Electrical Checks that Should be Done with Preventive Maintenance
Having plant equipment up and running at maximum efficiency is the main goal of maintenance teams. Running with minimum unplanned down time requires limiting reactive maintenance by starting a program that looks at preventive maintenance, predictive maintenance and proactive maintenance. The first step is knowing which one you need, and how these different types of programs work together.
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Jun 2021
Contractor Tips for ERV Installation
CHOOSING THE APPROPRIATE SIZES, functions and taking into account recent innovations can affect the installation of residential energy recovery ventilators (ERV).
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Jun 2021
The Fundamentals of Leak Testing
As regulations around the phasedown of HFC refrigerants and the push for lower-GWP alternatives continue to drive the HVAC/R industry issues like system installation, maintenance and service practices are also changing accordingly.
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