scope:

DESCRIPTION

A. Testing, adjusting, and balancing (TAB) of heating, ventilating and air conditioning (HVAC) systems. TAB includes the following:

1. Planning systematic TAB procedures.

2. Design Review Report.

3. Systems Inspection report.

4. Duct Air Leakage test report.

5. Systems Readiness Report.

6. Balancing air and water distribution systems; adjustment of total system to provide design performance; and testing performance of equipment and automatic controls.

7. Vibration and sound measurements.

8. Recording and reporting results.

B. Definitions:

1. Basic TAB used in this Section: Chapter 37, "Testing, Adjusting and Balancing" of 2007 ASHRAE Handbook, "HVAC Applications".

2. TAB: Testing, Adjusting and Balancing; the process of checking and adjusting HVAC systems to meet design objectives.

3. AABC: Associated Air Balance Council.

4. NEBB: National Environmental Balancing Bureau.

5. Hydronic Systems: Includes // chilled water, // condenser water, // heating hot water // and glycol-water systems. //

6. Air Systems: Includes all outside air, supply air, return air, exhaust air and relief air systems.

7. Flow rate tolerance: The allowable percentage variation, minus to plus, of actual flow rate from values (design) in the contract documents.