To monitor outside air intake we propose to utilize the DDC controls to measure temperatures for the outside air, return air, mixed air, and supply air. The DDC calculations will result in the total CFM of outside air delivered well within the 15% accuracy required. Additionally, the controls configuration will provide alarms whenever the delivered amount of outside air is below the minimum threshold. As a secondary measure, CO2 sensors will be required for ALL building tenants per the LEED CI credit EQ 1. This project exceeds the minimum ventilation requirements of ASHRAE Standard 62.1-2004 by well over 30%. These three parameters will ensure that the minimum outside air will be delivered, monitored, and alarmed per the requirements of LEED CS EQ credit 1. Will our proposal meet the intent of this credit?
The applicant is proposing an alternative outside air delivering monitoring device which monitors temperatures of outside air. The EQc1 credit requirement states for mechanically ventilated spaces: "For each mechanical ventilation system, provide a direct outdoor airflow measurement device capable of measuring the minimum outdoor airflow rate with an accuracy of plus or minus 15% of the design minimum outdoor air rate, as defined by ASHRAE 62.1-2004." The system proposed does not directly measure outdoor airflow rates, as flow rate cannot be measured by temperatures; therefore this strategy would not meet the credit requirements. Applicable Internationally.