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Commercial building systems
Q1: Energy information systems can identify specific systems in a building that are not performing correctly.
Q2: Why are HVAC and lighting systems typically good to focus on for improving overall building energy performance?
They are simple systems to operate, maintain and adjust.
They are maintained by outside service contractors.
They typically use more energy than other systems.
They are easy to retrofit.
Q3: What advantages does LED lighting have over other lighting types? Select all that apply.
Accurate color quality ratings
Q4: How do retrofits differ from improved operational practices?
Retrofits improve the performance potential, not necessarily the actual performance.
Utility incentives are available for retrofits, but not for improving operational practices.
Retrofits involve fixing components, equipment and systems that are not operating correctly, while improved operational practices involve replacing outdated equipment with new equipment.
Retrofits mostly consist of adjusting HVAC and lighting control systems.
Q5: If an airside economizer system is not performing correctly, how does this typically impact energy usage?
The supply fans could be operating more often than necessary.
The heating system could be operating at a higher temperature than necessary.
The mechanical cooling system could be using more energy than necessary.
The temperature in the occupied spaces could be unstable.
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