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3.3 AIR SYSTEM PROCEDURE <br />A. Adjust air handling and distribution systems to provide required or design supply, retum, and <br />exhaust air quantities. <br />6. Make air quantity measurements in ducts by pitot tube traverse of entire cross sectional area of <br />dud. <br />C. Measure air quantities at air inlets and outlets. Log shali show each successive test. <br />D. Adjust distribution system to obtain uniform space temperatures free from objectionable drafts <br />and noise. _ <br />E. Use volume control devices to regulate air quantities only to the extent that adjustments do <br />not create objectionable air motion or sound levels. Effect volume control by duct intemal <br />devices such as dampers and splitters. <br />F. Vary total system air quantities by adjustment of fan speeds. Provide drive changes as required <br />at no additional cost to Owner. Vary branch air quantities by damper regulation. <br />G. Adjust fans to deliver within S percent of specified flow. Adjust air outlets and inlets to within <br />I 0 percent of spec~ed flow. <br />H. Adjust fan and inlet vanes for variable air volume systems with sufficient number of terminal <br />units at ful- cooling to achieve fan flow specified. Close other units. <br />Adjust outside air to all fans as scheduled. Measure at outside air for variable air volume fans at <br />full flow and with all terminal units at minimum position. Set outside air with all terminal units <br />at minimum position. <br />Adjust relief exhaust fans on variable air volume systems to maintain a positive building static <br />pressure of 0.05-inch w.c. <br />3.4 AIR MOVING EQUIPMENT TESTING <br />A. Location. <br />B. Manufacturer. <br />C. Model. <br />D. Supply air flow, specified and actual. <br />E. Return air flow, specified and actual. <br />F. Outside air flow, specified and actual. <br />G. Total extemal static pressure, specified and actual. <br />H. Inlet pressure. <br />1. Discharge pressure. <br />J. Fan RPM. <br />3 <br />