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Round 1 Bowling and Amusement 12/09/2024 Paradigm Design <br />Main Place Mall Expansion Grand Rapids, MI <br />Santa Ana, California <br />Project #2309147GR <br />C.Measure air outlets and inlets without making adjustments. <br />1.Measure terminal outlets using a direct-reading hood or outlet manufacturer's written <br />instructions and calculating factors. <br />D.Adjust air outlets and inlets for each space to indicated airflows within specified tolerances of <br />indicated values. Make adjustments using branch volume dampers rather than extractors and <br />the dampers at air terminals. <br />1.Adjust each outlet in same room or space to within specified tolerances of indicated <br />quantities without generating noise levels above the limitations prescribed by the <br />Contract Documents. <br />2.Adjust patterns of adjustable outlets for proper distribution without drafts. <br />3.6 PROCEDURES FOR TESTING, ADJUSTING, AND BALANCING EXISTING SYSTEMS <br />A.Perform a preconstruction inspection of existing equipment that is to remain and be reused. <br />1.Measure and record the operating speed, airflow, and static pressure of each fan. <br />2.Measure motor voltage and amperage. Compare the values to motor nameplate <br />information. <br />3.Check the refrigerant charge. <br />4.Check the condition of filters. <br />5.Check the condition of coils. <br />6.Check the operation of the drain pan and condensate-drain trap. <br />7.Check bearings and other lubricated parts for proper lubrication. <br />8.Report on the operating condition of the equipment and the results of the measurements <br />taken. Report deficiencies. <br />B.Before performing testing and balancing of existing systems, inspect existing equipment that is <br />to remain and be reused to verify that existing equipment has been cleaned and refurbished. <br />Verify the following: <br />1.New filters are installed. <br />2.Coils are clean and fins combed. <br />3.Drain pans are clean. <br />4.Fans are clean. <br />5.Bearings and other parts are properly lubricated. <br />6.Deficiencies noted in the preconstruction report are corrected. <br />C.Perform testing and balancing of existing systems to the extent that existing systems are <br />affected by the renovation work. <br />1.Compare the indicated airflow of the renovated work to the measured fan airflows, and <br />determine the new fan speed and the face velocity of filters and coils. <br />2.Verify that the indicated airflows of the renovated work result in filter and coil face <br />velocities and fan speeds that are within the acceptable limits defined by equipment <br />manufacturer.