LEED AP with Operations and Maintenance (O+M ) Practice Exam

If CFC-based refrigerants are present, what is the maximum annual leakage rate allowed for compliance with Fundamental Refrigerant Management?

1. 10% or less

2. 5% or less annual leakage or 30% or less total lifetime leakage

3. 15% or less

4. 25% or less annual leakage

The correct answer is: 5% or less annual leakage or 30% or less total lifetime leakage

The maximum annual leakage rate allowed for compliance with Fundamental Refrigerant Management is indeed 5% or less, or 30% or less total lifetime leakage. This standard is established to minimize the environmental impact of refrigerants, particularly those that are ozone-depleting substances like CFCs. The reason for this specific threshold is to encourage responsible management and maintenance of refrigerant systems, reducing the emissions of harmful substances into the atmosphere. By limiting the leakage to 5% annually, buildings can significantly mitigate their contribution to environmental degradation. Additionally, the lifetime total leakage allowance of 30% provides flexibility for managing long-term refrigerant use and addresses the cumulative impact of leaks over the equipment's lifespan. This approach reflects the commitment to sustainability and the goal of reducing the ecological footprint of building operations, aligning with LEED's overall mission to promote environmentally responsible building practices.