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RSES Journal Archives

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Results: 283 Articles Found
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Apr 2020
MSAC Hotline: Positive Pressure
q q I’m working on a 90%-plus Goodman gas furnace with a condensation trap on the outside of the cabinet. I replaced the trap because it had a hole and was leaking.
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Mar 2020
MSAC Hotline: Oil Return Issues
A colleague of mine was having trouble with their condensing unit on a medium temperature walk-in cooler. The unit started to trip on low oil pressure. When they came in to check on it in the morning the unit was not running and the oil pressure control was tripping during the night.
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Feb 2020
MSAC Hotline: Boiler Pressure
A few days ago I dumped my boiler and added new water. The pressure and temp obviously dropped to zero.
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Jan 2020
MSAC Hotline: Parallel Evaporators
I am a CMS Master License holder in Delaware. I recently installed two Bosch Bova systems BOVA- 36HDN1-181M with matching Bosch air handlers at 5kW and second stage heating. We are using Honeywell TH622 thermostats where everything is new.
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Dec 2019
MSAC Hotline: Filter-Drier Pressure Drop
Would there be a significant pressure drop through a drier if you have a full column of vapor vs liquid? For example if for whatever reason my drier is only seeing vapor, could it potentially display a large TD across it solely because it’s a vapor and not as dense as a liquid?
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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?
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Oct 2019
MSAC Hotline: Evergreen Motors
The Manufacturers’ Service Advisory Council provides expert answers to your technical questions.
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Sep 2019
MSAC Hotline: CO2 Leak Detectors
have the pleasure to work with the refrigeration side of this industry. With the increased use of R-744 (CO2) in the refrigeration process, my question pertains to leak detectors.
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Aug 2019
MSAC Hotline: Is there a Schrader?
My question involves using Schraders when using transducers. When you ship these to the jobsite do you put Schraders where pressure or temp transducers are located to allow replacement if needed?
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Jul 2019
MSAC Hotline: Voltage Drop
qI am a CMS Master License holder in Delaware. I recently installed two Bosch Bova systems BOVA- 36HDN1-181M with matching Bosch air handlers at 5kW and second stage heating.
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Results: 283 Articles Found
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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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