EPA Section 608 Universal Certification ExamType I (Small Appliances)Hard
A technician needs to recover refrigerant from a small appliance that has a completely unknown refrigerant type. What is the safest and most appropriate action the technician should take?
- AAttempt to recover the refrigerant into a general-purpose recovery cylinder.
- BVent a small amount of refrigerant to atmosphere to identify its smell.
- CUse a refrigerant identifier to determine the refrigerant type.
- DAssume it is R-12 and proceed with an R-12 recovery procedure.
Show answer & explanationAnswer & explanation
Correct answer: C. Use a refrigerant identifier to determine the refrigerant type.
Recovering an unknown refrigerant type without identification is dangerous and can lead to equipment damage or unsafe pressure conditions. Venting refrigerant is illegal. A refrigerant identifier is the correct tool to safely and accurately determine the refrigerant type, allowing for proper recovery procedures and cylinder selection.
Why the other options are wrong
- A. Recovering an unknown refrigerant into a general cylinder risks contamination and dangerous pressure buildup if incompatible.
- B. Venting refrigerant to the atmosphere is illegal and harmful to the environment.
- D. Assuming the refrigerant type is unsafe and can lead to equipment damage or dangerous reactions.
Unknown Refrigerant Identification
Before recovering refrigerant from a system with an unknown refrigerant type, a refrigerant identifier must be used to safely and accurately determine its composition.
- Prevents contamination of recovery cylinders.
- Ensures proper recovery equipment and procedures are used.
- Crucial for safety and environmental compliance.
Memory trick: When the refrigerant's a mystery, an identifier is your history!