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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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Jun 2021
The Great Debate in Replacement Parts
ONE OF THE BIGGEST CHALLENGES for
HVAC contractors is that there is never
enough time in the day for the work
that needs to be done. In the world of
HVAC, time is a valuable commodity.
If a piece of equipment stops working
or is not performing as it should, homeowners
and businesses need the repair
or replacement to happen as soon as
possible.This means having the right
part on-hand so the fix can happen as
quickly as possible.
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Jun 2021
Leading Off: Working Together to Create the Future
As most of you know, RSES Headquarters has moved to a new location. Because of that, the staff was very busy with the move and was a little slow responding to your requests. Thank you for your patience during this time. By the time this article comes out staff should be settled in and thing back to normal. The next order of business is to grow RSES.
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Jun 2021
Last Word: Supporting Each Other
This is a piece I’m shocked I even have to write but after some of the responses we received regarding RSES Past International President Harlan “Skip” Krepcik, CMS, MBA, RCT meeting U.S. President Biden last month to do an HVAC demonstration I felt it was necessary to put my thoughts into this column.
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May 2021
Staying Frosty with A2L Refrigerants
The world of refrigerants, as
we know it, is changing once again.
Regulatory drivers and increasing
efficiency demands are helping to
shape the course of our industry.
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May 2021
How Humidity Affects Temperature Drop
When the humidity(water vapor) content
of air entering a cooling coil is elevated,
the temperature drop of air across that
cooling coil is less than normal. When
water vapor content of entering air is
low, the temperature drop of air across
the coil will be greater than normal.
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May 2021
Pandemic Spurs Interest in Germicidal UV-C for Air Disinfection
Many refrigeration engineers may be familiar
with the restorative abilities of Ultraviolet
Germicidal Irradiation (UVGI or UV-C)
energy to remove biological growth from
cooling coils and return cooling capacities
to original design specifications.
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May 2021
Troubleshooting: Some Defrost, Some Don't
This month’s Troubleshooting section is a problem about
defrost, some of the low-temp cases are not defrosting
completely or they are defrosting sporadically.
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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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