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DocuSign Envelope ID: B94F2D40-3B3C-47A7-86C2-6F1 B4F92C62C <br /> Orange County Emergency Services Building Construction Documents <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 refrigerating systems. <br /> C. Measurement of final operating condition of HVAC systems. <br /> D. Ductwork Leakage Testing <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. <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. Include at least the following in the plan: <br /> a. List of all air flow, sound level, 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 /> h. Specific procedures that will ensure equipment is 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 /> I. 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 /> n. False loading of systems to complete TAB work, if specified. <br /> o. Exhaust fan balancing and capacity verifications, including any required room pressure <br /> differentials. <br /> p. Interstitial cavity differential pressure measurements and calculations, if specified. <br /> q. Procedures for formal deficiency reports, including scope, frequency and distribution. <br /> PDC Project 18102 TESTING, ADJUSTING, AND 23 05 93- 1 <br /> 12/17/2018 BALANCING FOR HVAC <br />