EPA 608 Type II Practice Test - High Pressure Systems
Type II certification covers high-pressure appliances using HFC, HCFC, and CFC refrigerants (except R-11). This includes commercial air conditioning systems, heat pumps, and commercial refrigeration equipment with significant refrigerant charges.
About EPA 608 Type II Certification
Type II certification is for technicians working on high-pressure appliances, which includes most commercial air conditioning and refrigeration systems. This is one of the most comprehensive certifications in the EPA 608 program.
Equipment Covered by Type II:
- Commercial Air Conditioning: Rooftop units, split systems, package units
- Heat Pumps: Commercial and residential heat pump systems
- Commercial Refrigeration: Walk-in coolers, reach-in refrigerators, ice machines
- Chillers: High-pressure chillers using refrigerants other than R-11
- Process Cooling: Industrial refrigeration systems
Type II Specific Topics:
- Recovery Procedures: 90% recovery requirement for high-pressure systems
- Leak Repair Requirements: Mandatory leak repair thresholds
- Evacuation Procedures: Proper system evacuation techniques
- Charging Procedures: Safe refrigerant charging methods
- System Diagnosis: Troubleshooting high-pressure systems
Key Regulations for Type II:
- Must recover 90% of refrigerant from high-pressure systems
- Leak repair required when annual leak rate exceeds 30% for comfort cooling
- Leak repair required when annual leak rate exceeds 20% for commercial refrigeration
- Evacuation to 15 inches of mercury vacuum or lower required
- Proper recovery equipment certification required
Common Refrigerants in Type II Systems:
- R-22 (HCFC-22): Common in older systems, being phased out
- R-410A: Current standard for new residential and light commercial systems
- R-134a: Used in some commercial applications
- R-404A: Common in commercial refrigeration
- R-407C: Retrofit refrigerant for R-22 systems
This practice test covers all essential aspects of Type II certification to help you succeed on the EPA 608 exam.