Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
When calculating an Energy Rating Index, the Rated Home and the Reference Home are always modeled with cooling systems. For example, the RESNET/ICC 301-2014 Standard says "For a Rated Home without a cooling system, an electric air conditioner with the efficiency provided in Table 4.2.2(1a) shall be assumed for both the Energy Rating Reference Home and the Rated Home."
So you're seeing the result of a SEER 13 AC in both the Reference and Rated Homes.
