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LEED O+M: Existing Buildings | v2008

Occupant comfort - thermal comfort monitoring

EQc2.3 | Possible 1 point

Intent

To support the appropriate operations and maintenance of buildings and building systems so that they continue to meet target building performance goals over the long term and provide a comfortable thermal environment that supports the productivity and well-being of building occupants.

Requirements

Have in place a system for continuous tracking and optimization of systems that regulate indoor comfort and conditions (air temperature, humidity, air speed and radiant temperature) in occupied spaces. Have a permanent monitoring system to ensure ongoing building performance to the desired comfort criteria as determined ASHRAE Standard 55–2004, Thermal Comfort Conditions for Human Occupancy.

The building must establish the following:

  • Continuous monitoring of, at a minimum, air temperature and humidity in occupied spaces. The sampling interval cannot exceed 15 minutes.
  • Periodic testing of air speed and radiant temperature in occupied spaces. Using handheld meters is permitted.
  • Alarms for conditions that require system adjustment or repair. Submit a list of the sensors, zone set-points and limit values that would trigger an alarm.
  • Procedures that deliver prompt adjustments or repairs in response to problems identified.

All monitoring devices must be calibrated within the manufacturer’s recommended interval.

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