Demand Control Ventilation
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This incentive is available for the installation of CO2 sensor controls to modulate the amount of outside air intake based on actual occupancy levels.
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Required Documentation:
- Floor plans and controlled area: Detailed plans highlighting the areas where occupancy sensors will be installed and the zones they will control.
- HVAC documentation (e.g., BAS graphic screenshot, control programming, sequence of operations, functional testing documentation).
- Pre- and post-installation data: Documentation showing the minimum outside air setpoint before and after the installation of CO2 sensors, ensuring that the post-installation setpoint is adjusted based on CO2 levels and is lower than the existing case, alongside evidence of a functioning economizer.
- Applicability: Eligible for both retrofit projects and new construction (if not mandated by code).
- Baseline Efficiency:
- The existing HVAC system must either have fully functioning air-side economizers or undergo economizer repairs as part of the implementation of DCV.
- The minimum outside air damper position setpoint should be ≥10 percent of the supply air when the space is occupied, in compliance with the current ASHRAE 62 standard or applicable local building codes.
- Qualifying Efficiency Requirement: The installed CO2 sensor must effectively control the minimum percentage of the outside air intake, reducing it below the existing setpoint based on real-time occupancy levels.
- Exclusions:
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- Cannot be combined with incentives for economizers.
- DCV mandated by code for new construction.