Commissioning Mode for UC400 & Symbio 400/500 in TU Updated November 04, 2026 21:49 balance BCXE HUVC fan balance VUVE FFXX FCXX Air and Water Balance Test and Balance In the commissioning mode you can override the fan and other end devices. Articles in this section BLOWER COIL 3 PHASE MOTOR INCORRECT ROTATION How to Configure field installed Symbio 400/500 Low Airflow or LOCH Symbio™ 400–B/500 Programmable Controllers IOM For Blower Coil, Fan Coil, and Unit Ventilator? Zone sensor Options - Terminal Products - UC400/400B/ ZN A2L FAQ - R454B A2L Sensor for Terminal Products - R454B Adjusting Fan speed - fan balance - Terminal Products with ECM board Air/ Fan balance for ECM controlled direct drive units Autoflow Valves - Test and balance See more Related articles LOCH- Fancoil - ECM Troubleshooting Guide LOCH - Blower coil Troubleshooting guide Low Airflow or LOCH Adjusting Fan speed - fan balance - Terminal Products with ECM board Air/ Fan balance for ECM controlled direct drive units