Building Automation  

Energy conservation opportunities (ECOs) are initiatives which result in a reduction in facility energy consumption. Most often, this is accompanied by a reduction in energy costs as well. Identifying potential ECOs is the first step in pursuing energy reduction and associated energy cost savings in your facility. Accurately quantifying the benefits of implementing such an ECO is typically needed as well, especially if implementation of the ECO has an upfront cost associated with it.

Demand-Controlled Ventilation (DCV) uses the building automation system (BAS) to adjust outdoor airflow to match building occupancy and saves energy. It is required by the International Energy Conservation Code (IECC) and ASHRAE 90.1 for spaces over 500 square feet with occupant density of 10 people per 1000 square feet. In this session, we will introduce occupancy-based DCV and CO2-based DCV concepts, and describe DCV components, controls setup, and control sequences recommended in ASHRAE Guideline 36 High-Performance Sequences of Operation for HVAC Systems for single-zone systems.