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Examen
HVAC: EPA 608 Certification Study Guide Questions and Answers 2024/2025 | verified actual Rated A+
The EPA Section 608 Technician Certification is required for HVAC professionals who handle refrigerants. The exam is divided into four sections: 
 
Core: Environmental impact, safety, and regulations 
 
Type I: Small appliances (≤5 lbs refrigerant) 
 
Type II: High-pressure systems (e.g., residential AC) 
 
Type III: Low-pressure systems (e.g., chillers) 
 
Passing all four earns Universal Certification, allowing technicians to work on all types of equipment.
Examen
HVAC: EPA 608 Certification Study Guide {Questions With 100% Correct Answers} (2024 / 2025) (Verified by Expert
PopularAre there drop-in replacements for R-12 systems? Why or why not? - ANSWER No because 
the new refrigerants are incompatible with the oils and lubricants used in R-12 systems. 
What type of oil is used in R-134a and what oils will it mix with? - ANSWER Ester based oils 
and they do not mix with other oils 
What type of lubricant is used with HCFCs? - ANSWER Alkylbenzene lubricant 
What is difference b/w ternary blend a azeotropic blend? - ANSWER Ternary blends are 
three-part mixtures whereas aze...
Examen
Hvac: Epa 608 Certification Study Guide 2026/2027 Exam Questions And Correct Detailed Answers 

NuevoHvac: Epa 608 Certification Study Guide 2026/2027 Exam Questions And Correct Detailed Answers 
Hvac: Epa 608 Certification Study Guide 2026/2027 Exam Questions And Correct Detailed Answers 
Hvac: Epa 608 Certification Study Guide 2026/2027 Exam Questions And Correct Detailed Answers
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BUNDLE FOR HVAC (EPA Certification Exam Section 608) Questions With Verified Solutions | ALREADY PASSED | LATEST REVISED UPDATE
NuevoAll The Best!!!
Lote
BUNDLE FOR EPA 608 Universal Exam ( ACTUAL EXAM ) Questions With Verified Solutions| ALREADY PASSED
All The Best
Examen
HVAC: EPA 608 Certification Study Guide Questions With Verified Solutions| ALREADY PASSED. UPDATED
HVAC: EPA 608 Certification Study 
Guide Questions With Verified 
Solutions| ALREADY PASSED. 
UPDATED 
Are there drop-in replacements for R-12 systems? Why or 
why not? - ANSWER No because the new refrigerants 
are incompatible with the oils and lubricants used in R-12 
systems. 
What type of oil is used in R-134a and what oils will it mix 
with? - ANSWER Ester based oils and they do not mix 
with other oils 
What type of lubricant is used with HCFCs? - ANSWER 
Alkylbenzene lubricant 
What is di...