Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
My understanding is that where components of the Proposed design are not specified or designed, these components should meet the requirements of the Baseline building. In this case, that would mean that the sizing factors in the Proposed should match the sizing factors in the Reference. See ASHRAE 90.1-2007, Table G3.1.10 (Proposed) HVAC Systems. "Where no heating/cooling system exists or no heating/cooling system has been specified ... System characteristics shall be identical to the system modeled in the baseline building".
