EPA 608 Type II Study Guide

Type II covers high-pressure appliances, excluding small appliances and motor vehicle air conditioning. This section often tests recovery levels, leak repair, evacuation, and safe service procedures.

Key Topics

• High-pressure appliance recovery and evacuation requirements.
• Charging, liquid recovery, compressor protection, and oil handling.
• Leak checking, repair thresholds, follow-up verification, and records.
• Non-condensables, pressure-temperature relationships, and system restrictions.
• Recovery cylinder safety, overfilling prevention, and refrigerant mixing risks.

Practice Strategy

Spend extra time on leak repair and recovery requirements. Type II questions often include details that change the correct action, such as appliance type, pressure, or whether the compressor is operational.

What Makes Type II Different

Type II questions usually involve high-pressure appliances, so pressure-temperature relationships, recovery cylinder safety, and charging practices matter. Many questions ask for the safest or most compliant action during service, not just a definition.

Study Checklist

• Review high-pressure recovery and evacuation expectations.
• Know why air, moisture, and non-condensables cause service problems.
• Practice leak repair questions that include appliance type and leak rate details.
• Understand the risks of overfilled cylinders and mixed refrigerants.

Not affiliated with the EPA. For study practice only.