If a tenant is replacing base building systems, in a new HVAC&R system how much

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试卷: LEED v4 ID+C模拟题A卷英文[查看]
If a tenant is replacing base building systems, in a new HVAC&R system how much CFC-based refrigerant can be used?
A: None
B: 5% of the total refrigerants
C: 2% of the total refrigerants
D: 5% of the total refrigerants, as long as they are not used in fire suppression systems

参考答案: A

本题解释:
Notes：A: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.
Fundamental Refrigerant Management differs from Enhanced Refrigerant Management which requires either using no refrigerants or using refrigerants that have no Ozone Depletion Potential and Global Warming Potentials of 50 or less