Fan Mode
| Mode | Description |
|---|---|
| Low | AC 3-Speed Fan: Turn on
the Low/Medium/High speed. ECM Fan: Adjust the voltage output of Low/Medium/High speed. This requires configuring the output percentage of the 3 speeds. |
| Medium | |
| High | |
| Auto | Adjust the fan speed according to the differences between current temperature and target temperature range. |
- Button Switch (when the child lock is disabled)
- ToolBox
- Downlink Command
Auto Fan Mode
Under auto fan mode, the thermostat will switch the fan speed according to a threshold value ΔT.
Heat: ΔT= |Tnow - (Tset - To)|
Cool: ΔT= Tnow - (Tset + To)
| Fan Speed | Threshold |
|---|---|
| Low → Medium | ≥ ΔT1 |
| Medium → High | ≥ ΔT2 |
| High → Medium | < ΔT2-0.5 |
| Medium → Low | < ΔT1-0.5 |
By default, ΔT1=3°C, ΔT2=5°C. Both values can be changed by downlink commands.
When the temperature reaches the heat or cool stop point, the fan will shut off. You can also send the downlink command to keep the fan mode as Low speed during standby status.
Fan Delay
When the system is switched off, or temperature reaches the heat or cool stop point under Auto fan mode, the thermostat support configuring the time to delay the close of fan.