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// CODE SNIPPET

C403.2.6.2 Enclosed Parking Garage Ventilation Controls

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 > C403.2.6.2 Enclosed Parking Garage Ventilation Controls
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Enclosed parking garages used for storing or handling automobiles operating under their own power shall employ contamination-sensing devices and automatic controls configured to stage fans or modulate fan average airflow rates to 50 percent or less of design capacity, or intermittently operate fans less than 20 percent of the occupied time or as required to maintain acceptable contaminant levels in accordance with International Mechanical Code provisions. Failure of contamination sensing devices shall cause the exhaust fans to operate continuously at design airflow.

Exceptions:

  1. Garages with a total exhaust capacity less than 22,500 cfm (10 620 L/s) with ventilation systems that do not utilize heating or mechanical cooling.
  2. Garages that have a garage area to ventilation system motor nameplate power ratio that exceeds 1125 cfm/hp (710 L/s/kW) and do not utilize heating or mechanical cooling.

Related Code Sections


C403.2.6.2 [CE] Commercial Energy Efficiency, Enclosed Parking Garage Ventilation Controls
Enclosed parking garages used for storing or handling automobiles operating under their own power shall employ contamination-sensing devices ...
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 > C403.2.6.2 Enclosed Parking Garage Ventilation Controls
C403.7.2 [CE] Commercial Energy Efficiency, Enclosed Parking Garage Ventilation Controls (Mandatory)
Enclosed parking garages used for storing or handling automobiles operating under their own power shall employ contamination-sensing devices ...
Energy Conservation Code 2018 of Colorado > 4 [CE] Commercial Energy Efficiency > C403 Building Mechanical Systems > C403.7 Ventilation and Exhaust Systems (Mandatory) > C403.7.2 Enclosed Parking Garage Ventilation Controls (Mandatory)
Section 404 Ventilation, Enclosed Parking Garages
Where mechanical ventilation systems for enclosed parking garages operate intermittently, such operation shall be automatic by means of carbon ...
Mechanical Code 2015 of Colorado > 4 Ventilation > 404 Enclosed Parking Garages
Section 404 Ventilation, Enclosed Parking Garages
Mechanical ventilation systems for enclosed parking garages shall operate continuously or shall be automatically operated by means of carbon monoxide ...
Mechanical Code 2018 of Colorado > 4 Ventilation > 404 Enclosed Parking Garages
406.6 Special Detailed Requirements Based on Occupancy and Use, Enclosed Parking Garages
Enclosed parking garages shall comply with Sections 406.2, 406.4 and 406.6 ...
Building Code of the Department of Personnel & Administration/Office of the State Architect (DPA/OSA) > 4 Special Detailed Requirements Based on Occupancy and Use > 406 Motor-Vehicle-Related Occupancies > 406.6 Enclosed Parking Garages
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