No. | Description |
|---|---|
1 | Free Cooling LED |
2 | Sensor LED |
3 | DAC LED |
LED Indication
Status | Free Cooling LED | Sensor LED | DAC LED |
|---|---|---|---|
Commissioning mode | Yellow Blinking | Yellow Blinking | Yellow Blinking |
Power start-up | Yellow On | Yellow On | Yellow On |
Free cooling is running | Green On | - | - |
Free cooling is available but not running | Green Blinking | - | - |
Not economizing when it should | Red Blinking | - | - |
Economizing when it should not | Red On | - | - |
Sensors working ok | - | Green On | - |
Humidity sensor error | - | Yellow On | - |
CO2 sensor error | - | LED Off | - |
Air temperature failure/fault | - | Red On | - |
Excess outdoor air | - | Red Blinking | - |
Damper working ok | - | - | Green On |
Damper stalled | - | - | Red On |
Damper slippage | - | - | Red Blinking |
Actuator alarm is reported | - | - | Fast Red Blinking |
Terminal ACT-FB is configured but no available feedback signal (under-range or over-range) | - | - | LED Off |
If different faulty events occur at the same time, sensor/DAC LED lights up following the priority below: Red (Fast Blinking) -> Red (On, Steady) -> Red (Blinking) -> Yellow -> Off -> Green. For example, if there is a humidity sensor error and air temperature failure at the same time, the sensor LED turns red rather than yellow.
After the Economizer controller enters the running state, it may take one minute for peripheral devices to complete initialization. Before that, LED indication might be unstable.