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WebCO2 and Ventilation Reset Precision How much airflow set point uncertainty can we expect? By Leonard A. Damiano, EBTRON, Inc. March 2016 The application of CO2 sensors for indirect control of minimum ventilation rates continues to create contradictions and controversy due to the lack of specificity in ASHRAE Standards (62.1‐2013; 90.1‐2013 hot water boilers residential problems

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WebManthan @ Air Flow Measurement Company 1103, Goldcroft, Hiranandani Estate, Ghodbunder Road, Thane 400607, Maharasahtra, India Tel: +91 9 8193 69015 WebPermanently‐Installed Airflow Measuring Devices Sources of the difference between expected and actual performance by Leonard A. Damiano, EBTRON, Inc. February 2016 INTRODUCTION The proper selection of airflow measurement devices is critical to the performance of today’s state‐of‐the‐art Web0.6 L/min) and a space CO2 uncertainty of ±50 ppm and an outdoor air uncertainty of ±50 ppm from a nominal level of 400 ppm. In practice, the space CO2 uncertainty will be much greater due to sensor drift and location. One should note that the flow rate uncertainty above full design requirements can be minimized hot water boilers need accumulators