Which entity completes and documents test and balance work?

Which entity completes and documents test and balance work?

• A. The owner
• B. The contractor
• C. TAB agency
• D. Commissioning authority

Answer: (C)

The main idea is that balancing and documenting airflow and system performance requires a specialized, independent verifier. A TAB (test and balance) agency is the firm trained to perform the field measurements of airflows, pressures, and damper positions, make the necessary adjustments to achieve the design intent, and produce the official TAB reports. These reports capture measured values (like CFM for each zone, external static pressures, and final equipment settings) and document any deviations fixed to meet the design. Because TAB work involves precise instrumentation and an impartial audit trail, it’s the TAB agency that completes the tests and compiles the documentation, ensuring the system truly performs as intended. The owner, contractor, and commissioning authority may interact with the TAB process, but the actual testing, balancing, and formal documentation come from the TAB firm.

The main idea is that balancing and documenting airflow and system performance requires a specialized, independent verifier. A TAB (test and balance) agency is the firm trained to perform the field measurements of airflows, pressures, and damper positions, make the necessary adjustments to achieve the design intent, and produce the official TAB reports. These reports capture measured values (like CFM for each zone, external static pressures, and final equipment settings) and document any deviations fixed to meet the design. Because TAB work involves precise instrumentation and an impartial audit trail, it’s the TAB agency that completes the tests and compiles the documentation, ensuring the system truly performs as intended. The owner, contractor, and commissioning authority may interact with the TAB process, but the actual testing, balancing, and formal documentation come from the TAB firm.