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Prescriptive

Energy Recovery Ventilators

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$0.00

This incentive is available for integrating an enthalpy-based energy recovery to recover the waste energy out of exhaust air streams and to temper incoming outside makeup air streams before these air streams are mechanically conditioned.


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Required Documentation:

  • Mechanical drawings and schedules indicating ventilation CFM or supporting documentation.

  • Specifications of the system and evidence of its enthalpy-based energy recovery.

  • If applicable, schematics or operational descriptions illustrating the integration of an air stream bypass for economizer mode operation.

Important Consideration:

  • The ERVs shall not affect the system's overall performance or indoor air quality. Additionally, the system should be equipped with an air stream bypass to allow for economizer mode operation when conditions permit, further enhancing energy savings.
  • Applicability: Eligible for retrofit projects, equipment replacement or new construction installations (if not mandated by code).
  • Baseline efficiency: No existing heat recovery from exhaust air stream in question.
  • Qualifying efficiency requirement: The installation or an effective ERV, suitable for the specific HVAC system (natural gas space heating) and operational requirements of the facility.
  • Exclusions:
    • Cannot be combined with other heat recovery measures, such as stack economizers.
    • Cannot be in conjunction with high-efficiency furnace and boiler measures.
    • Spaces where heat recovery is already required by code.
  • Other requirements:
    • The enthalpy heat recovery systems shall be a minimum of 70% sensible and latent recovery effectiveness.
    • The system should be equipped with an air stream bypass to operate in economizer mode when applicable.
    • Minimum volume flow rate of 500 CFM and maximum volume flow rate of 50,000 CFM. The rated volume flow rate is the supply volume flow rate being introduced into the space as defined in AHR! Standard 1060-2005.