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Q29 Single choice

When a building owner is deciding whether to execute an ASHRAE Level 2 audit or commissioning for Energy and Atmosphere Credit, Existing Building Commissioning -Analysis, which of the following statements most appropriately explains the difference between an ASHRAE Level 2 audit and commissioning of an existing building?

A
An ASHRAE Level 2 audit is required for newer buildings while commissioning is required for buildings in operation for more than five years
B
An ASHRAE Level 2 audit requires development of an energy use breakdown based on sub-metering while commissioning requires development of an energy use breakdown based on energy modeling
C
An ASHRAE Level 2 audit involves testing the operation of the systems against the sequences of operation while commissioning involves determining that the system operation meets the owner's
current facility requirements
D
An ASHRAE Level 2 audit focuses on finding major upgrades to the building envelope or me-chanical, electrical, or controls systems while commissioning focuses on controls, proper sys-tem operations, and efficiency improvements

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