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Home eLearning Air Conditioning Fundamentals Module 10 - Refrigerant Properties
 

Module 10 - Refrigerant Properties

 
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Module 10 - Refrigerant Properties

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NATE CEH   2

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Refrigerant Properties

Description:

The various properties of refrigerants, an explanation of the terms zeotropes, azeotropes, and near-azeotropes and the difference between them, the thermodynamic, physical and safety properties of common refrigerants.

Upon completion of this module you will understand how to:

1. Define the term refrigerant.
2. Describe common refrigerant requirements
3. List the refrigerants that are in use today
4. Explain the difference between zeotropes, azeotropes, and nearazeotropes.
5. Define the terms bubble point, dew point, fractionation, and glide.
6. List and describe the thermodynamic, physical, and safety properties of several common refrigerants.
7. Explain the relationship between refrigerants and oils.

Topic 1: Refrigerants

* Topic Introduction and Objectives
* Know Your Refrigerant
* Common Refrigerant Requirements
* Refrigerants in Use Today
* Check-Point Question: Refrigerants
* Check-Point Question: Refrigerants
* Topic Summary

Topic 2: Types of Refrigerants

* Topic Introduction and Objectives
* Expendable Refrigerants
* Common Expendable Refrigerants
* Fluorinated Hydrocarbon Compounds
* R-501 and R-502
* The "New" Refrigerants
* Common Refrigerant Types
* Telling the Difference
* Temperature-Pressure Values for Common Refrigerants
* Temperature-Pressure Values for R-407C
* Check-Point Question: Types of Refrigerants
* Topic Summary

Topic 3: Thermodynamic, Physical, and Safety Properties

* Topic Introduction and Objectives
* Thermodynamic Properties of Refrigerants
* Physical Properties – Stability of Refrigerants
* Stability of Refrigerants – Compatibility Testing
* Stability of Refrigerants – Abnormal Conditions
* Physical Properties – Miscibility of Refrigerants
* Physical Properties – Molecular Weight of Refrigerants
* Molecular Weight and Diameter of Refrigerant Molecule
* Physical Properties – Critical Temperature of Refrigerants
* Safety Properties - ASHRAE Standard 34
* Exposure Limits of Refrigerants
* Overexposure to Refrigerants
* Decomposition
* Check-Point Question: Thermodynamic, Physical, and Safety Properties
* Topic Summary

 

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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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