In which phase does TAB agency complete and document test and balance work?

In which phase does TAB agency complete and document test and balance work?

• A. Acceptance
• B. Construction
• C. Design
• D. Post-Acceptance

Answer: (B)

Testing and balancing is done when the HVAC systems and ductwork are in place so you can accurately measure airflow, pressures, and temperatures and then adjust components to meet the design intent. That environment exists during the Construction phase, when equipment is installed and systems are being wired, wired, and configured but before occupancy. The TAB agency conducts field tests, makes the necessary adjustments, and documents the results in a TAB report that becomes part of the commissioning records and handover package. In the Design phase there isn’t installed equipment to test, and in Post-Acceptance the systems are already operating or handed over, so TAB work is not the focus of those phases.

Testing and balancing is done when the HVAC systems and ductwork are in place so you can accurately measure airflow, pressures, and temperatures and then adjust components to meet the design intent. That environment exists during the Construction phase, when equipment is installed and systems are being wired, wired, and configured but before occupancy. The TAB agency conducts field tests, makes the necessary adjustments, and documents the results in a TAB report that becomes part of the commissioning records and handover package. In the Design phase there isn’t installed equipment to test, and in Post-Acceptance the systems are already operating or handed over, so TAB work is not the focus of those phases.