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i <br /> � <br /> i <br /> H. Not used. i • <br /> I. Test flush valves for proper operation. � <br /> i <br /> J. Test fire protection system with no evidence of leaking at <br /> minimum of 200 psi for period of 2 hours. � <br /> � <br /> K. Test ductwork as follows: � <br /> � <br /> Follow procedure published by United Sheet Metal Division of <br /> United McGill Corporation entitled "System Pressure Testiri� for <br /> Leaks" using prescribed test kit containing test blower, two U-tube <br /> manometer, and calibrated orifice tube. i <br /> i <br /> Installed medium-pressure duct system shall be pressurized tc� 50% <br /> over desib operating pressure or 6" w.g. whichever is greater. Air <br /> leakage at test pressure shall be measured by a calibrated cirifice <br /> type flow meter. Total allowable leakage of system shall not <br /> exceed 1/2 of 1% of system air handling capacity. If syst�em is <br /> tested in sections, leakage rates shall be added to give perforrnance <br /> of whole system. � <br /> � <br /> Leakage concentrated at one point may result in objectionable • <br /> noise even if system passes leakaae rate criteria; corre,ct to <br /> satisfaction of Designer. ; <br /> � <br /> i <br /> Orifice flow measurement device shall be individually calibrated <br /> against a primary standard and calibrated curve permanently <br /> attached to orifice tube assembly. � <br /> � <br /> � <br /> L. Not used. i <br /> � <br /> M. Vibration Tests: Test equipment vibration and vibration isolai:ion <br /> system in accordance with methods and procedures given in the <br /> Testing,Adjusting, and Balancing Chapter of ASHR.AE Systems <br /> Handbook. <br /> 3.11 ACCEPTANCE: ' <br /> i <br /> i <br /> A. Complete following before requesting a final inspection: � <br /> Work required under this division of specifications. <br /> � <br />� i <br /> System testing, adjusting, balancing. ; <br /> I � <br /> i <br /> ICT 99184 ' <br /> 15010 - 12 , <br /> I <br /> j <br /> I <br />