In accordance to Standard 90.1-2019 Section G3.1 part 11, proposed designs where no service water-heating system exists or has been designed and submitted with design documents but the building will have service water-heating loads, a service water-heating system is required to be modeled that matches the system type in the baseline building design, as specified in Standard 90.1-2019 Table G3.1.1-2. The SHW system specified in the proposed building should comply with but not exceed the requirements of Section 7.
G3.2 New Construction/Major Alterations
In accordance with Standard 90.1-2022 Section G3.1 part 11, proposed designs where no service water-heating system exists or has been designed and submitted with design documents but the building will have service water-heating loads, a service water-heating system is required to be modeled that matches the system type in the baseline building design, as specified in Standard 90.1-2022 Table G3.1.1-2. The SHW system specified in the proposed building should comply with but not exceed the requirements of Standard 90.1-2022 Section 7.
G3.3 Minor Alterations
Each service water heating system in the proposed design has a corresponding system modeled in the baseline design. Consequently, if there is no service water heating system in the proposed design, no system will be modeled in the baseline.