EPA Section 608 Universal Certification ExamType III (Low-Pressure Appliances)Medium
A low-pressure chiller using HCFC-123 has developed a leak. The EPA requires that the leak rate be reduced to below what percentage within 18 months for industrial process refrigeration (IPR) systems?
- A10% of the charge
- B20% of the charge
- C5% of the charge
- D30% of the charge
Show answer & explanationAnswer & explanation
Correct answer: B. 20% of the charge
For industrial process refrigeration (IPR) systems, the EPA mandates that if a leak exceeds the threshold, the leak rate must be reduced to below 20% of the charge within 18 months.
Why the other options are wrong
- A. 10% is too low; this is not the current IPR leak rate standard.
- C. 5% is too low; this is not the current IPR leak rate standard.
- D. 30% is too high; this was an older standard and is no longer applicable.
IPR Leak Rate Standard (Low-Pressure)
The maximum allowable annual leak rate for industrial process refrigeration (IPR) systems containing low-pressure refrigerants, after a leak has been identified and repaired.
- Applies to Industrial Process Refrigeration (IPR) systems.
- Low-pressure refrigerants (e.g., HCFC-123).
- Leak rate must be reduced to below 20%.
- Compliance timeframe: 18 months.
Memory trick: IPR leaks, 20 percent, 18 months, no more suspense.