The Room Information section lists each room in the zone. Defined in the Definitions section of ASHRAE 62.1-2004 on page 22.įraction of Supply Air to Zone from Outside Zone F a : Defined in the Definitions section of ASHRAE 62.1-2004 on page 22.įraction of Supply Air to Zone from Fully Mixed Primary Air F b : Defined in the Definitions section of ASHRAE 62.1-2004 on page 22.įraction of Outdoor Air to Zone from Outside Zone F c : Defined in the Definitions section of ASHRAE 62.1-2004 on page 22. Secondary Air Fraction to Zone E r : Set using the Er field in the Zone List command. Defined in the Definitions section of ASHRAE 62.1-2004 on page 22. Primary Air Fraction to Zone E p : Set using the Ep field in the Zone List command. Defined in table 6-2 in ASHRAE 62.1-2004 on page 15. A value less than 1 will increase the ventilation required in the zone. Zone Air Distribution Effectiveness E z : Set using the Ez field in the Zone List command. Defined in equation 6-8 in ASHRAE 62.1-2004 on page 11. Equal to Uncorrected Air Intake divided by System Ventilation Efficiency. Outdoor Air Intake V ot : The total ventilation airflow required for the zone. Defined in equation A-3 in ASHRAE 62.1-2004 on page 20. System Ventilation Efficiency E v : The minimum Zone Ventilation Efficiency value used to calculate the ventilation airflow required in the zone. Uncorrected Air Intake V ou : The sum of the Zone Outdoor Airflow values for all of the rooms in the zone. Defined in equation 6-7 in ASHRAE 62.1-2004 on page 11. Equal to the People Diversity value set in the Zone List command divided by the total number of people in the rooms in the zone. Occupant Diversity D: A diversity factor based upon the number of people in the zone. Defined in the Definitions section of ASHRAE 62.1-2004 on page 22.Īverage Outdoor Air Fraction X s : A calculated value equal to Uncorrected Air Intake divided by System Primary Airflow. See the Print Supply Air Requirements section for more information. This value is the same as the Required Supply CFM column in the Supply Air Requirements table. System Primary Airflow V ps : The supply airflow required to condition the zone. The information about the zone is displayed first in the section, followed by information about each room in the zone. A header with the name of the zone is displayed at the top of each section. The labels in italics are the names of the variables used in the ASHRAE 62.1-2004, ASHRAE 62.1-2007, and ASHRAE 62.1-2010 calculations.Įach zone is displayed as a separate section in the table. If specific zones are selected, then only the selected zones are displayed and no sections are displayed. If the whole building is selected to be printed in the Zone or Room to Print field, then every zone is listed. The Ventilation Schedule table contains sections for the zones in the project. The calculations are the same for each method.įor complete information about how this calculation works and what these values mean, refer to ASHRAE 62.1. This section describes the ventilation schedule that is printed when the Ventilation Calculation Method field in the Project Info command is set to 2009 International Mechanical Code, ASHRAE 62.1-2004, ASHRAE 62.1-2007, or ASHRAE 62.1-2010.
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