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Editorial Reviews. From the Author. This book wI'll help you pass the EPA 608 Universal Exam. 608 Universal Certification Test - Kindle edition by Jason Stenseth. Download it once and read it on your Kindle device, PC, phones or tablets. EPA Section 608 Study Guide. HVAC Learning Solutions. The Environmental Protection Agency (EPA) is an agency of the United States government. This agency regulates. Download a brochure or visit the TPC Trainco website for a complete schedule of course offerings and locations. This Study Guide is intended to help the user prepare for the EPA 608 Certification Examination and contains all the information required to answer questions on the test.

Environmental Impacts

• Destruction of ozone by chlorine
• Presence of chlorine in (CFC) and (HCFC) refrigerants
• Identification of CFC, HCFC, and (HFC) refrigerants (not chemical formulas, but idea that R-12 is a CFC, R-22 is an HCFC, R-134 is an HFC, etc.)
• Idea that CFCs have higher ozone-depletion potential () than HCFCs, which in turn have higher ODP than HFCs
• Understanding of the atmospheric effects from the types of refrigerants
• Health and environmental effects of stratospheric ozone depletion
• Evidence of stratospheric ozone depletion and role of CFCs and HCFCs

Clean Air Act and Montreal Protocol

• CFC phaseout date
• R-22 phaseout date
• Venting prohibition at servicing
• Venting prohibition at disposal
• Venting prohibition on substitute refrigerants
• Maximum penalty under the
• (the international agreement to phase out production of ozone-depleting substances)

Section 608 Regulations

• Definition/identification of high and low-pressure refrigerants
• Definition of system-dependent versus self-contained recovery/recycling equipment
• Identification of equipment covered by the rule (all air-conditioning and refrigeration equipment containing CFCs or HCFCs except motor vehicle air conditioners)
• Need for third-party certification of recycling and recovery equipment
• Standard for reclaimed refrigerant [Air Conditioning, Heating, and Refrigeration Institute (AHRI) Standard 700-2016]
• The sales restriction
• The Clean Air Act prohibition on venting

Substitute Refrigerants and oils

• Absence of 'drop-in' replacements
• Incompatibility of substitute refrigerants with many lubricants used with CFC and HCFC refrigerants and incompatibility of CFC and HCFC refrigerants with many new lubricants (includes identification of lubricants for given refrigerants, such as esters with R-134; alkylbenzenes for HCFCs)
• Fractionation problem--tendency of different components of blends to leak at different rates

Refrigeration

• Refrigerant states (vapor versus liquid) and pressures at different points of refrigeration cycle; how/when cooling occurs
• Refrigeration gauges (color codes, ranges of different types, proper use)
• Leak Detection

Three R Definitions

• Recover
• Recycle
• Reclaim

Recovery Techniques

• Need to avoid mixing refrigerants
• Factors affecting speed of recovery (ambient temperature, size of recycling or recovery equipment, hose length and diameter, etc.)

Dehydration Evacuation

• Need to evacuate system to eliminate air and moisture at the end of service

Safety

Epa 608 Study Guide Download Torrent

• Risks of exposure to refrigerant (e.g., oxygen deprivation, cardiac effects, frost bite, long-term hazards)
• Personal protective equipment [gloves, goggles, self-contained breathing apparatus (SCBA)-in extreme cases, etc.]
• Reusable (or 'recovery') cylinders versus disposable cylinders [ensure former Department of Transportation (DOT) approved, know former's yellow and gray color code, never refill latter]
• Risks of filling cylinders more than 80 percent full
• Use of nitrogen rather than oxygen or compressed air for leak detection
• Use of pressure regulator and relief valve with nitrogen

Shipping

• Labels required for refrigerant cylinders (refrigerant identification, DOT classification tag)