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DocuSign Envelope ID: 9826C043- 4C32- 49CD- A4CC- DC28ABAB7CE7 <br />SECTION 237700 - VIBRATION AND SEISMIC CONTROLS FOR HVAC <br />3.4 FIELD QUALITY CONTROL <br />A. Perform tests and inspections. <br />B. Tests and Inspections: <br />1. Provide evidence of recent calibration of test equipment by a testing agency acceptable to authorities <br />having jurisdiction. <br />2. Schedule test with Owner, through Architect, before connecting anchorage device to restrained <br />component (unless postconnection testing has been approved), and with at least seven days' advance <br />notice. <br />3. Obtain Architect's approval before transmitting test loads to structure. Provide temporary load - <br />spreading members. <br />4. Test at least four of each type and size of installed anchors and fasteners selected by Architect. <br />5. Test to 90 percent of rated proof load of device. <br />6. Measure isolator restraint clearance. <br />7. Measure isolator deflection. <br />8. If a device fails test, modify all installations of same type and retest until satisfactory results are <br />achieved. <br />C. Remove and replace malfunctioning units and retest as specified above. <br />D. Prepare test and inspection reports, certified by Professional Engineer who provided Delegated Design. <br />3.5 ADJUSTING <br />A. Adjust isolators after piping system is at operating weight. <br />B. Adjust limit stops on restrained spring isolators to mount equipment at normal operating height. After <br />equipment installation is complete, adjust limit stops so they are out of contact during normal operation. <br />C. Adjust active height of spring isolators. <br />D. Adjust restraints to permit free movement of equipment within normal mode of operation. <br />END OF SECTION 237700 <br />Reece, Noland & McElrath, Inc. 237700-3 Orange County Board of Elections <br />Orange Co., NC 05/04/18 <br />