In some cases, a complete HVAC system already exists. An example might be an existing speculative building that is being built out for a tenant. In a case like this, the proposed building must match the existing systems and the baseline building must follow the baseline building modeling rules.
In some cases, a complete HVAC system already exists.
G3.2 New Construction/Major Alterations
An example might be an existing speculative building that is being built out for a tenant. In a case like this, the proposed building must match the existing systems and the baseline building must follow the baseline building modeling rules.
G3.3 Minor Alterations
If the systems are excluded from the scope of the retrofit, then the proposed building must match the existing systems and the baseline building must be modeled identically to the proposed.
System and equipment included in the scope of retrofit shall be modeled at efficiency levels meeting the mandatory and prescriptive requirements in Sections 5 through 10 and as described in Standard 90.1-2022 Section G3.3. All other baseline systems and equipment shall be modeled the same as in the proposed design.