In a new building how much CFC-based refrigerant can be used?

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试卷: LEED GA模拟题C[查看]
In a new building how much CFC-based refrigerant can be used?
A: None
B: 5% of the total refrigerants, as long as they are not used in fire suppression systems
C: 5% of the total refrigerants
D: 2% of the total refrigerants

参考答案: A

本题解释:
Notes:

Reference: LEED 2009 for New Construction and Major Renovations Rating System

The rating systems have a prerequisite for Fundamental Refrigerant Management which requires zero use of CFCs. CFCs are known to cause ozone depletion.

For buildings with existing systems that use CFC-based refrigerants, the systems must be phased out within 5 years after the project is completed, unless a third-party audit shows the simple payback for retrofitting/replacement is more than 10 years.

Fundamental Refrigerant Management differs from Enhanced Refrigerant Management which requires either using no refrigerants or using refrigerants that have low Ozone Depletion Potential and Global Warming Potentials (ODP and GWP).