Demonstrate that it is not feasible to meet ASHRAE 62.1-2007 because of building design and construction. Also, demonstrate that at least 10 cfm per person of outdoor air is supplied under normal operating conditions. Projects able to demonstrate both of these items can earn the prerequisite, even though they don’t provide optimal indoor air quality.
Demonstrate that each air handling unit supplies the minimum outdoor air flow specified by ASHRAE 62.1-2007. If one or more air handling units do not meet the ASHRAE requirements, you can still earn the prerequisite by using the EQp1 Option B Calculator to show that those units supply at least 10 cfm per person.
Good indoor air quality can lower operational costs while increasing occupant health and productivity as well as the value and marketability of the building.
Increased mechanical ventilation rates may increase energy costs for heating and cooling. Some strategies for mitigating these costs include energy recovery ventilation, economizers and controls, CO2 monitors, and demand-controlled ventilation.
Costs for testing will depend on how many air handling units and ventilation zones need testing, whether staff are qualified to do testing in-house, and whether the building has a BAS that gathers data.
Test all building exhaust systems to confirm that they are functioning as intended. Be sure to confirm proper function, including fan speed, voltage, control sequences, and set points.
