The MEP team should become familiar with the minimum efficiencies required for heating, cooling, and hot water equipment listed in ASHRAE 90.1-2007, Tables 6.8.1 and 7.8.
LEED-CI energy systems relate to only those building systems within the construction or remodeling scope of the project. They do not address base building systems outside the interior fit-out.
Identify the elements of the projectthat fall under this prerequisite: space cooling, space heating, lighting, ventilation, pumping, and domestic hot water. Do this by reviewing the requirements in ASHRAE 90.1-2007 and developing a building systems narrative for equipment and lighting.
This prerequisite establishes the project’s energy performance so that the project can demonstrate a commitment to energy efficiency. The energy use of a LEED-CI project, in terms of the ASHRAE 90.1–2007 standard, must meet four distinct requirements:
ASHRAE 90.1-2007 – Mandatory Requirements
ASHRAE 90.1-2007 – Prescriptive Option or Performance Option
Lighting Power Density Reduction of 10%
Energy Star-labeled Equipment and Appliances - 50%
During flush-outs, track airflow, duration, and any environmental or procedural conditions that impact the flush-out. If anything unusual happens, document it. Include this information as supporting documentation with the LEED submittal.
Calculate the volume of fresh air to be blown into the space after construction Multiply the floor area of the impacted space by the required volume of outside air to determine the total volume of fresh air to be supplied to the space.
