The HVACR Training Authority™

Digital Edition

Check out the latest issue of RSES Journal for features including: air curtains using biopolar ionization, types of supply duct systems, refrigerant recovery best practices and more. All inside your November 2020 RSES Journal issue.



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AMCA Annual Summit


CampusEnergy 2021

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System Performance: Maximizing Energy Efficiency in Heating and Cooling

System Performance: Maximizing Energy Efficiency in Heating and Cooling



Society & Industry News

RSES Launches New eLearning Safety for the HVACR Technician Course

RSES Launches New eLearning Safety for the HVACR Technician

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RSES Observes Thanksgiving

RSES will be closed on Thursday, Nov. 26, 2020, and Friday, Nov. 26, 2020, in observance of Thanksgiving.

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Methods of Defrost in Refrigeration Applications -- Part 2

Since piping runs are relatively long in supermarkets, gas defrost generally takes the form of reverse flow defrost. This method utilizes the existing circuit’s suction line to introduce the flow of the discharge vapor in a backwards flow direction through the evaporator system.

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Types of Supply Duct Systems

There are several basic types of supply and return duct systems, any one or a combination of which can be utilized to fit the needs of a particular structure.

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Refrigerant Recovery Best Practices

Refrigerant recovery is among the most common procedures done by service technicians. But, best practices continue to change and evolve over time—meaning continued learning and professional education are a must.

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RSES is the leading education, training and certification preparation organization for HVACR professionals. RSES publishes various comprehensive industry training and reference materials in addition to delivering superior educational programs designed to benefit HVACR professionals at every stage of their careers through instructor-led training courses, online training for HVAC, educational seminars, interactive CD and DVD products, industry-related reference manuals, and helpful technical content through Service Application Manual chapters, the RSES Journal, the RSES Journal archives and feature articles, as well as web-exclusive features.

Beginning with basic theory and extending to complex troubleshooting, training courses covering refrigeration and air conditioning, heating, electricity, controls, heat pumps and safety may be conducted in a classroom environment or though self study. RSES publications may be purchased by schools, contractors, manufacturers or any other industry group wanting to conduct comprehensive training programs. Seminars covering air conditioning troubleshooting, electrical troubleshooting, compressor training, condenser training, refrigerant piping practices, DDC controls, and more are held in various cities across North America.

Select training programs offer Continuing Education Units (CEUs) and NATE Continuing Education Hours (CEHs).

In addition, RSES offers industry certification preparation materials for refrigerant handling (EPA Section 608), R-410A and North American Technician Excellence (NATE) examinations.

RSES’ monthly magazine, RSES Journal, serves HVAC contractors, service technicians, students, operations/maintenance managers, engineers and technicians who work in the residential, light commercial, commercial and institutional markets on air conditioning, warm-air heating, refrigeration, ventilation, electrical, ice machines, chillers, hydronic heating, piping, refrigeration control and energy management, building automation, indoor air quality and duct cleaning, and sheet metal fabrication equipment and/or systems.
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