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Nov 2019
Best Practices when Changing a Compressor
Asking a series of questions of the equipment owner is an easy
way to start pinpointing problems.
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Nov 2019
Do You Peform CO Testing?
Are we ready to keep our customers
and ourselves safe?
Read More
Nov 2019
Sizing Geothermal Retrofits
Using the ASHRAE Modifi ed Degree Day Energy
Estimating Formula to calculate heat loss.
Read More
Nov 2019
MSAC Hotline: R-410A Phaseout
I just spoke to a fellow contractor who told me he just saw a mini-split with R-32 in it. Do you have any information on this? Is R-410A being replaced?
Read More
Nov 2019
Troubleshooting: Condensing Temperature Lower than Outdoor Temperature
In this troubleshooting situation, you
arrive at a residential comfort cooling
service call and the customer complaint
is insufficient cooling on a seven year-
old, 3-ton heat pump split system.
Read More
Nov 2019
Leading Off: Preparation—You Never Know When You’ll Need It
Most people have a vision or plan for the things that they
want to accomplish. Almost always things never go just
like we want them to. That is where preparation
becomes important.
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Nov 2019
Heating Up: Undeniable Passion of our Members
I attended my first RSES Conference as the editor of RSES
Journal in the beginning of October. (I’ve attended RSES
Conferences before but that was a long time ago.)
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Oct 2019
Beware of 'Ghost Voltage'
“GHOST VOLTAGE” is a term that’s sometimes used by service techs to explain a phenomenon where they measure voltage that they don’t expect or when the voltage they see doesn’t do the work they expect. More advanced techs know how to use the Lo-Z (i.e., low impedance) mode on their voltmeter, if it has that feature, to help eliminate the confusion.
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Oct 2019
Using Performance Curves as a Service Tool
Often when servicing an HVACR system, the
technician finds himself in a situation where
the compressor's apparent performance is
questionable.
Read More
Oct 2019
Defrosting Refrigerated Coils
There are three methods to
defrost systems such as
refrigerated cases, reach-in and
walk-in coolers and freezers.
Read More
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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