Outdoor air systems
Features/Air/Feature 20
- 01 Air quality standards
- 02 Smoking ban
- 03 Ventilation effectiveness
- 04 VOC reduction
- 05 Air filtration
- 06 Microbe and mold control
- 07 Construction pollution management
- 08 Healthy entrance
- 09 Cleaning protocol
- 10 Pesticide management
- 11 Fundamental material safety
- 12 Moisture management
- 13 Air flush
- 14 Air infiltration management
- 15 Increased ventilation
- 16 Humidity control
- 17 Direct source ventilation
- 18 Air quality monitoring and feedback
- 19 Operable windows
- 20 Outdoor air systems
- 21 Displacement ventilation
- 22 Pest control
- 23 Advanced air purification
- 24 Combustion minimization
- 25 Toxic material reduction
- 26 Enhanced material safety
- 27 Antimicrobial activity for surfaces
- 28 Cleanable environment
- 29 Cleaning equipment
- P9 Advanced cleaning
Outdoor air systems
Intent:
To allow buildings to control the outdoor air supply independently from the heating/cooling needs of the building.
No, a DOAS system refers to an HVAC unit that has separate processes for ventilation versus heating/cooling to remove the constraints associated with linking heating and cooling with ventilation so that optimal air quality and thermal comfort can be independently achieved. A DOAS system does not imply that there is no recirculated air. Your MEP should be able to review the design and ultimately decide whether to pursue requirement A or B to achieve the feature.