Action Steps

The civil engineer verifies that post-development rate and quantity are equal to or less than pre-development.

The civil engineer calculates the pre- and post-development peak rate and total volume of stormwater runoff for the one-year and two-year, 24-hour design storms.

Monitor and recalibrate the monitoring and alarm systems as specified by the product manufacturer.

The commissioning plan should include HVAC, monitoring, and alarm systems, with the appropriate sampling rate.

Verify that CO₂ sensors are 3–6 feet off the floor.

Contractor installs the monitoring devices as recommended by product manufacturer and mechanical engineer. Verify that all alarms have set points complying with ASHRAE 62.1-2007.

Review drawings to ensure that all densely occupied spaces contain CO₂ sensors.

Include CO₂ sensors and outdoor air delivery monitoring devices on the project plans and Equipment Schedule. Also highlight the interface between monitors and BMS or alarm on project plans.

The mechanical engineer and architect identify densely and non-densely occupied spaces as defined by LEED and determine the quantity and locations of all monitoring devices, and integrate them into the HVAC system. The mechanical engineer should verify that the monitors are designed to interface with a BMS system or trigger an audible or visual alarm if CO₂ concentrations or ventilation rates fall outside of the required range.

Use ASHRAE standard 62.1-2007 to determine outside air requirements.