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// CODE SNIPPET

C403.2.6.1 Demand Controlled Ventilation

Energy Conservation Code 2015 of Colorado > 4 [CE] Commercial Energy Efficiency > C403 Building Mechanical Systems > C403.2 Provisions Applicable to All Mechanical Systems (Mandatory) > C403.2.6 Ventilation > C403.2.6.1 Demand Controlled Ventilation
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Demand control ventilation (DCV) shall be provided for spaces larger than 500 square feet (46.5 m2) and with an average occupant load of 25 people per 1,000 square feet (93 m2) of floor area (as established in Table 403.3.1.1 of the International Mechanical Code) and served by systems with one or more of the following:
  1. An air-side economizer.
  2. Automatic modulating control of the outdoor air damper.
  3. A design outdoor airflow greater than 3,000 cfm (1416 L/s).
Exception: Demand control ventilation is not required for systems and spaces as follows:
  1. Systems with energy recovery complying with Section C403.2.7.
  2. Multiple-zone systems without direct digital control of individual zones communicating with a central control panel.
  3. Systems with a design outdoor airflow less than 1,200 cfm (566 L/s).
  4. Spaces where the supply airflow rate minus any makeup or outgoing transfer air requirement is less than 1,200 cfm (566 L/s).
  5. Ventilation provided for process loads only.

Related Code Sections


C403.2.6.1 [CE] Commercial Energy Efficiency, Demand Controlled Ventilation
Demand control ventilation (DCV) shall be provided for spaces larger than 500 square feet (46.5 m2) and with an average occupant load of 25 people ...
Energy Conservation Code 2015 of Colorado > 4 [CE] Commercial Energy Efficiency > C403 Building Mechanical Systems > C403.2 Provisions Applicable to All Mechanical Systems (Mandatory) > C403.2.6 Ventilation > C403.2.6.1 Demand Controlled Ventilation
C403.7.1 [CE] Commercial Energy Efficiency, Demand Control Ventilation
Demand control ventilation (DCV) shall be provided for all single-zone systems required to comply with Sections C403.5 through C403.5.3 and spaces ...
Energy Conservation Code 2021 of Colorado > 4 [CE] Commercial Energy Efficiency > C403 Building Mechanical Systems > C403.7 Ventilation and Exhaust Systems > C403.7.1 Demand Control Ventilation
C403.7.1 [CE] Commercial Energy Efficiency, Demand Control Ventilation (Mandatory)
Demand control ventilation (DCV) shall be provided for spaces larger than 500 square feet (46.5 m2) and with an average occupant load of 25 people ...
Energy Conservation Code 2018 of Colorado > 4 [CE] Commercial Energy Efficiency > C403 Building Mechanical Systems > C403.7 Ventilation and Exhaust Systems (Mandatory) > C403.7.1 Demand Control Ventilation (Mandatory)
403.3.1.3 Ventilation, System Operation
on the rate per person indicated in Table 403.3.1.1 and the actual number of occupants present. Where demand-controlled ventilation is employed ...
Mechanical Code 2021 of Colorado > 4 Ventilation > 403 Mechanical Ventilation > 403.3 Outdoor Air and Local Exhaust Airflow Rates > 403.3.1 Other Buildings Intended to Be Occupied > 403.3.1.3 System Operation
220.56 Wiring and Protection, Kitchen Equipment — Other Than Dwelling Unit(s)
equipment in accordance with Table 220.56. These demand factors shall be applied to all equipment that has either thermostatic control ...
National Electrical Code 2020 of Colorado > 2 Wiring and Protection > 220 Branch-Circuit, Feeder, and Service Load Calculations > 220.56 Kitchen Equipment — Other Than Dwelling Unit(s)
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