Description: The OAFE-1500 is an Air Movement and Control Association International (AMCA) certified outdoor airflow measurement system with ±0.5% accuracy through the velocity range of 200 to 1,200 fpm and ±5% at 100 fpm. The OAFE-1500 was developed to meet ASHRAE Standard 62.1 Ventilation for Acceptable Indoor Air Quality and the energy efficiency requirements of the “green building movement”. The OAFE-1500 can be used to fulfill LEED Indoor Environmental Quality (EQ) Credit 1: Outdoor Air Delivery Monitoring for 1 point. LEED EQ Credit 1 requirements state, “For each mechanical ventilation system serving non-densely occupied spaces, provide a direct outdoor airflow measurement device capable of measuring the minimum outdoor airflow rate with an accuracy of plus or minus 15% of the design minimum outdoor air rate, as defined by ASHRAE 62.1-2004.” Because of the exceptional accuracy of the OAFE-1500 it can also be used to minimize the additional energy consumption associated with higher ventilation rates (30% above the minimum rates) on projects seeking to obtain 1 point for LEED EQ Credit 2: Increased Ventilation and on projects seeking to obtain 1-10 points for LEED Energy and Atmosphere (EA) Credit 1: Optimize Energy Performance. In addition, the OAFE-1500 can be used to measure the required air volume (14,000 cu.ft. of outdoor air per sq. ft. of floor area) during building flush-out to obtain 1 point for LEED EQ Credit 3.2: Construction IAQ Management Plan. The airflow measurement station consists of multiple airflow elements, factory mounted and pre-piped in a casing designed for flanged connection to ductwork, control dampers, louvers, etc. The airflow measurement station is constructed to comply with ASHRAE Standard 111 for equal area traversing of an airflow measurement plane. The integral signal processor features 20-bit (1,048,576 steps) A/D and 12 bit (4,096 steps) D/A signal conversion resolution and 12-point linearization. The signal processor accepts a temperature input signal for air temperature indication, temperature signal transmission for remote readout, and air density compensation for standard or actual airflow calculations. A six button touch pad and password-protected menu provide quick and simple field configuration of engineering units, process noise filtering, operating range, alarm set points, etc.
MasterFormat Number(s): 23 09 23, 23 09 23, 23 09 13.23, 23 09 13, 23 09 00