If you have 24v on TB3-1 and 2
Verify ground wire is connected from the ECM board to the CSTI board.
The 20th wire on the ECM board goes to chassis and the red board.
ECM - Blue board not powering up with CSTI controls
Articles in this section
- A2L FAQ - R454B
- Adjusting Fan speed - Terminal Products with ECM board
- Air-Fi Wireless Sensor - How to set up for standalone operation with UC and no SC+ present
- Air/ Fan balance for ECM controlled direct drive units
- Autoflow Valves - Test and balance
- Belimo actuator CQB24-3 - Wired as 3-wire 2 position
- Belimo Valve and Actuator Parts- Terminal Products
- Belimo- 3 way valve stem orientation
- Cannot see the Softset button
- Commissioning Mode for UC400 in TU