EPA Section 608 Universal Certification ExamType I (Small Appliances)Easy
A technician is performing a refrigerant recovery on a small appliance. What is the maximum allowable pressure for the recovery cylinder during the recovery process?
- AThe recovery cylinder pressure must not exceed the design working pressure of the cylinder.
- BThe recovery cylinder pressure must not exceed the low-side pressure of the appliance.
- CThe recovery cylinder pressure must not exceed 50 psig.
- DThe recovery cylinder pressure must not exceed 90% of the tank's maximum fill capacity.
Show answer & explanationAnswer & explanation
Correct answer: A. The recovery cylinder pressure must not exceed the design working pressure of the cylinder.
To ensure safety and prevent over-pressurization, the recovery cylinder's pressure must always remain below its design working pressure. Exceeding this limit can lead to dangerous ruptures.
Why the other options are wrong
- B. The recovery cylinder pressure often exceeds the appliance's low-side pressure during active recovery.
- C. This is an incorrect arbitrary value and not a safety standard.
- D. This refers to the weight capacity, not the pressure capacity of the tank.
Recovery Cylinder Pressure Limit
The maximum pressure a refrigerant recovery cylinder can safely contain, as specified by its design working pressure.
- Prevents cylinder rupture.
- Ensures technician and public safety.
- Mandated by safety regulations.
Memory trick: Safe cylinders have strong walls, don't let pressure brawl!