LEED AP ID+C: Energy and Atmosphere

Question 1

Define: Chlorofluorocarbons (CFCs)

Answer 1

hydrocarbons that are used as refrigerants and cause depletion of the stratospheric ozone layer. Release of CFCs destroys ozone molecules in the stratosphere and reduces the ozone layer’s ability to block ultraviolet light. CFCs also absorb infrared radiation and create chlorine, a potent greenhouse gas. Banning their use slows ozone layer depletion and mitigates climate change.

Question 2

Define: Baseline Building Performance

Answer 2

annual energy cost for a building design intended for use as a baseline for rating above standard design. Defined in ANSI / ASHRAE / IENSA Standard 90.1-2007, Informative Appendix G

Question 3

Define: Hydrochlorofluorocarbons (HCFCs)

Answer 3

Refrigerants that cause significantly less depletion of the stratospheric ozone layer than chlorofluorocarbons

Question 4

Define: Hydrofluorocarbons (HFCs)

Answer 4

Refrigerants that do not deplete the stratospheric ozone layer, but may have high global warming potential. HFCs are not considered environmentally benign.

Question 5

EPA Clean Air Act, Title VI, Rule 608

Answer 5

Defines leakage rate. The speed at which an appliance loses refrigerant, measured between charges or over 12months, whichever is shorter. The leakage rate is expressed in terms of the percentage of the appliances full charge that would be lost over a 12 month period if the rate stabilized.

Question 6

Requirements for EA Prerequisite 1: Fundamental Commissioning of Building Energy Systems

Answer 6

• Designate an individual as the commissioning authority (CxA) to lead, review, and oversee completion of commissioning process activities
• Owner: documents owner’s project requirements; design team: develop basis of design; CxA: review these documents for clarity and completeness
• Develop and incorporate commissioning requirements into the construction documents
• Develop and implement commissioning plan
• Verify the installation and performance of the systems to be commissioned
• Complete a summary of the commissioning report

Question 7

12 Commissioning Tasks

Answer 7

1. Designate commissioning authority
2. Document owner’s project requirements. Develop basis of design
3. Review owner’s project requirements and basis of design.
4. Develop and implement commissioning plan.
5. Incorporate commissioning requirements into construction documents
6. Conduct commissioning design review prior to mid construction documents.
7. Review contract submittals applicable to systems being commissioned.
8. Verify installation and performance of commissioned systems.
9. Develop systems manually for commissioned systems.
10. Verify that requirements for training are completed.
11. Complete a summary of commissioning report.
12. Review building operation within 8-10 months after substantial completion.