Airside Economization

Free Cooling

Excess energy is often spent running chilled water systems when outside air conditions are adequate for cooling spaces. Similarly, if a car or house is warm in the winter, cracking a window is easier and more efficient than running air conditioning.

air economization

CONSIDERATIONS

  • Can be programmed to serve facilities with humidification requirements.
  • Requires sensor calibration and potential freeze protection sequencing.
  • Can be controlled by damper position or airflow stations.

KEY PERFORMANCE INDICATORS (KPIS)

  • 1-3 point energy use intensity {EUI} reduction potential
  • 1-2% sitewide electric savings
  • 2-3 year simple payback

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