CREDIT New Construction and Core and Shell 1–2分
影响领域：✓ Decarbonization
To reduce direct greenhouse gas emissions from refrigerants and to encourage early adoption of buildings that do not use harmful refrigerants to support a just transition of the HVAC&R industry.
减少制冷剂的直接温室气体排放，鼓励尽早采用不使用有害制冷剂的建筑，支持暖通空调行业的公平转型。
| Achievement Pathways | Points |
|---|---|
| New Construction and Core and Shell | 1–2 |
| Option 1. No Refrigerants or Low-Impact Refrigerants 无制冷剂或低影响制冷剂 | 2 |
| OR 或者 | |
| Option 2. Calculation of Refrigerant Impact 制冷剂影响计算 | 1 |
Do not use refrigerants, OR use only refrigerants (naturally occurring or synthetic) that have an ozone depletion potential (ODP) of zero and a global warming potential (GWP) of less than 10.
不使用制冷剂，或仅使用ODP为零且GWP<10的制冷剂（天然或合成）。
Calculate the lifecycle refrigerant GWP for all HVAC&R systems serving the project, and demonstrate that it does not exceed the maximum thresholds in Table 1.
计算所有服务于项目的暖通空调制冷系统的全生命周期制冷剂GWP，并证明不超过表1的最大值。
| Table 1. Maximum Lifecycle Refrigerant GWP Allowance 表1. 最大生命周期制冷剂GWP允许值 | |
|---|---|
| Climate Zone 气候分区 | Maximum Refrigerant GWP (kg CO₂e / ton cooling) 最大GWP（kg CO₂当量/冷吨） |
| 0, 1, 2 | 2,500 |
| 3, 4 | 1,750 |
| 5, 6, 7, 8 | 1,500 |
Calculation Method 计算方法：
LCGWP = Σ [ (GWPr × (Lr × 寿命 + Mr) × Rc × 全生命周期) ] / Qtotal
where: LCGWP = lifecycle GWP per ton cooling; GWPr = refrigerant GWP; Lr = annual leak rate (2%); Mr = end-of-life loss (10%); Rc = refrigerant charge per system; Qtotal = total cooling capacity in tons.
LEED v5 Reference Guide | Pages 123–125