Using TAB Experience to Troubleshoot Performance Issues

Abstract: This course examines how Testing, Adjusting, and Balancing (TAB) professionals apply field experience and systematic troubleshooting methods to resolve HVAC performance issues after systems are placed into operation. Using real-world scenarios, the discussion highlights common causes of airflow and temperature deficiencies, including duct leakage, fan performance problems, coil bypass, and system bypass conditions. The article emphasizes investigative techniques rooted in TAB principles to distinguish true system deficiencies from design, installation, or operational issues. By documenting practical diagnostic approaches, the article demonstrates how experienced TAB professionals contribute to restoring system performance, maintaining design intent, and supporting long-term building operation.

Learning Objectives

1. Identify common post-occupancy HVAC performance issues
2. Describe TAB-based troubleshooting methods
3. Recognize how installation and operational factors affect HVAC system performance.
4. Differentiate between TAB-related issues and non-TAB root causes

Sponsored By: Evergreen Telemetry

Evergreen Telemetry is dedicated to doubling the productivity of technicians in HVAC, TAB, Cx, building automation, process control, and other applications. These challenging work environments demand faster, smaller, and more convenient tools. Evergreen Telemetry provides technicians the tools they need for complex tasks. Tools that eliminate wires and tubes, in

crease productivity, and make every job faster, easier, and safer. Increased productivity can be easily accomplished by getting the needed data wirelessly, where the adjustments are made. Too much time is wasted in back-and-forth measurements and repetitive adjustments. With our products, a technician can set the sensors, find the problem, and make the correction faster, with real-time results at his wrist. FASTER EASIER SAFER!