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Southern Human Services Center Smith Sinnett /2020072 <br />HVAC and Roof Renovations Orange County,North Carolina <br />Testing,Adjusting,and Balancing for HVAC <br /> 23 05 93 - 1 <br />SECTION 23 05 93 <br />TESTING,ADJUSTING,AND BALANCING FOR HVAC <br />PART 1 GENERAL <br />1.01 SECTION INCLUDES <br />A.Testing,adjustment,and balancing of air systems. <br />B.Testing,adjustment,and balancing of hydronic systems. <br />C.Measurement of final operating condition of HVAC systems. <br />D.Commissioning activities. <br />1.02 REFERENCE STANDARDS <br />A.AABC (NSTSB)-AABC National Standards for Total System Balance,7th Edition 2016. <br />B.ASHRAE Std 111 -Measurement,Testing,Adjusting,and Balancing of Building HVAC Systems <br />2008 (Reaffirmed 2017). <br />C.NEBB (TAB)-Procedural Standards for Testing Adjusting and Balancing of Environmental <br />Systems 2015,with Errata (2017). <br />1.03 SUBMITTALS <br />A.TAB Plan: Submit a written plan indicating the testing,adjusting,and balancing standard to be <br />followed and the specific approach for each system and component. <br />1.Submit to Architect. <br />2.Submit to the Commissioning Authority. <br />3.Include at least the following in the plan: <br />a.List of all air flow,water flow,system capacity and efficiency measurements to be <br />performed and a description of specific test procedures,parameters,formulas to be <br />used. <br />b.Copy of field checkout sheets and logs to be used,listing each piece of equipment to be <br />tested,adjusted and balanced with the data cells to be gathered for each. <br />c.Identification and types of measurement instruments to be used and their most recent <br />calibration date. <br />d.Discussion of what notations and markings will be made on the duct and piping drawings <br />during the process. <br />e.Final test report forms to be used. <br />f.Detailed step-by-step procedures for TAB work for each system and issue,including: <br />1)Terminal flow calibration (for each terminal type). <br />2)Diffuser proportioning. <br />3)Branch/submain proportioning. <br />4)Total flow calculations. <br />5)Rechecking. <br />6)Diversity issues. <br />g.Details of how TOTAL flow will be determined;for example: <br />1)Air: Sum of terminal flows via control system calibrated readings or via hood <br />readings of all terminals,supply (SA)and return air (RA)pitot traverse,SA or RA <br />flow stations. <br />2)Water: Pump curves,circuit setter,flow station,ultrasonic,etc. <br />h.Specific procedures that will ensure that systems are operating at the lowest possible <br />pressures and methods to verify this. <br />i.Confirmation of understanding of the outside air ventilation criteria under all conditions. <br />j.Method of verifying and setting minimum outside air flow rate will be verified and set and <br />for what level (total building,zone,etc.). <br />k.Method of checking building static and exhaust fan and/or relief damper capacity. <br />l.Methods for making coil or other system plant capacity measurements,if specified. <br />m.Time schedule for TAB work to be done in phases (by floor,etc.). <br />DocuSign Envelope ID: 94E7997D-4F29-42F6-A9B4-0A160438D2A6