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Check out the latest issue of RSES Journal for features including: Proper procedures for bazing and pipe tubing, relays and contactors and field modifications of fire, smoke and combination fire/smoke dampers and more. All inside your February 2021 RSES Journal issue.



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Proper Procedures for Brazing Pipe and Tubing

Brazing is an integral part of installing and repairing HVAC/R systems. This metal joining process utilizes a filler metal that melts above 840°F/450°C and below the melting point of the base metals.

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Field Modifications of Fire, Smoke, and Combination Fire/Smoke Dampers

From the simple extension of a damper sleeve to the replacement of a damper actuator, common changes that may be needed for a factory-supplied life-safety damper to be installed properly.

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Part 2: The Equal Friction Method of Duct Sizing

This two-part feature on duct sizing is housed in the RSES Service Application Manual collection. Part 2 concludes the “equal friction method” of duct sizing by exploring the meaning of corrected pressure drop tables and friction loss charts.

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Part 1: Relays & Contactors

Circuit control, in its simplest form, is the application and removal of power. This can also be expressed as turning a circuit on and off, or opening and closing a circuit. Circuit control devices come in many different shapes and sizes, but most are categorized as switches, solenoids or relays.

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Part 1: The Equal Friction Method of Duct Sizing

This two-part feature on duct sizing is housed in the RSES Service Application Manual (SAM) collection. Part 1 takes an in-depth look at the methods for duct sizing and begins an in-depth approach to using the “equal friction method.”

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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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