Green Design

Buildings represent the largest source of CO2 emissions in the United States (www.eia.doe.gov). High performance buildings have been shown to reduce energy use 24–50%, CO2 emissions 33–39%, water use 40% and solid waste by 70% (www.usgbc.org). Because they are a large contributor to a building’s indoor environmental quality and energy consumption, HVAC systems play a significant role in being able to achieve significant energy consumption and air quality targets.

Venmar CES has a large number of cost-effective, pre-engineered, off-the-shelf air-to-air energy recovery solutions; in addition to having the ability to custom manufacture HVAC equipment to fit your specific requirements to ensure that your HVAC equipment is energy efficient, provides excellent indoor air quality and superior acoustic performance. Our custom design capabilities enable us to find unique solutions to your most challenging requests.

As one of the most widely recognized green building rating programs, LEED helps building owners minimize their impact on the built environment through a set of credits and points. HVAC systems themselves do not get points, but are a large part of the building system and contribute to earning several points the building may achieve. The following is a list of LEED points for New Construction where the HVAC system is involved:

  • EA Credit – Optimize Energy Performance: There are up to 18 points available (up to 20 for Healthcare) for demonstrating energy efficiency better than a baseline building as defined in EA Prerequisite – Minimum Energy Performance or by the recommendations set out in the applicable ASHRAE 50% Advanced Energy Design Guide. The benefit to the building Owner is reduced energy costs for their building.
  • EA Credit – Enhanced Refrigerant Management: There is 1 point available for not using refrigerants, or only using refrigerants with an ozone depletion potential of zero and a global warming potential less than 50, resulting in reduced risk to the building Owner.
  • EA Credit – Advanced Energy Metering: There is 1 point for installing advanced energy metering, for easy monitoring of equipment performance.
  • EQ Credit – Enhanced Indoor Air Quality Strategies: There are 2 points for improving IAQ by means of high efficiency filtration, increasing outdoor air ventilation rates by 30% above baseline and monitoring CO2 concentrations. This ensures additional outdoor air is supplied to the space for improved indoor air quality.
  • EQ Credit – Construction Indoor Air Quality Management Plan: There is 1 point for addressing IAQ and particulate contaminants during and after construction. For the HVAC design, this requires MERV 8 filtration if the air handlers are used during construction and MERV 13 filtration after the building is occupied.
  • EQ Credit – Thermal Comfort: There is 1 point for designing to ASHRAE Standard 55-2010 and verification of occupant thermal comfort. Addressing thermal comfort needs in the space helps building occupants feel more comfortable and improves productivity.

This is a list of LEED credits that the HVAC system influences and not a full description of the requirements to achieve LEED certification, or to achieve points in each area of the program. Please contact your local Venmar CES representative to learn more about how we can help maximize your HVAC's contribution on your LEED project.

For more information on our energy recovery equipment, please contact your Venmar CES representative.

Engineering Bulletin

LEED Projects and
Venmar CES

External Links

AEE
ASHRAE
DOE

USGBC