Title 16 - Buildings and Construction

16.370 ENGERGY CONSERVATION CODE

Section C403.7.1 of the International Energy Conservation Code is hereby amended to read as follows:

C403.7.1 Demand control ventilation. Demand control ventilation (DCV) shall be provided for the following:

1. 1.
  
  Spaces larger than 250 square feet (23 m2) in Climate Zones 5A, 6, 7, and 8 and spaces larger than 500 square feet (46.5 m2) in other climate zones that have a design occupant load of 15 people or greater per 1,000 square feet (93 m2) of floor area, as established in Table 403.3.1.1 of the International Mechanical Code, and are served by systems with one or more of the following:

1.1. An air-side economizer.

1.2. Automatic modulating control of the outdoor air damper.

1.3. A design outdoor airflow greater than 3,000 cfm (1416 L/s).

Exceptions:

1. 1.
  
  Spaces served by systems with energy recovery in accordance with Section C403.7.4.2 and that have a floor area less than:

1.1. 6,000 square feet (557 m2) in Climate Zone 3C.

1.2. 2,000 square feet (186 m2) in Climate Zones 1A, 3B and 4B.

1.3. 1,000 square feet (93 m2) in Climate Zones 2A, 2B, 3A, 4A, 4C, 5 and 6.

1.4. 400 square feet (37 m2) in Climate Zones 7 and 8.

6.1. Prevents the maximum concentration of contaminants from being more than that obtainable by the required rate of outdoor air ventilation.

6.2. Allows the required minimum design rate of outdoor air to be reduced by not less than 15 percent.

(History: Ord. No. BC-3499, §172, 2026)

Effective on: 1/1/1901