Configure Temperature Control and Fan Parameters

This section describes the settings related to the temperature and fan control.
Note: Before configuring the device through ToolBox, access it through NFC or Bluetooth. For the navigation path and write operation conventions used in this guide, see Configure the Device in ToolBox.

Configure System On/Off

System On/Off allows users to remotely enable or disable the HVAC system.
Configure by ToolBox
  1. Navigate to Device > General.
  2. Set System On/Off as required.

  3. Tap Write to apply the configuration.
Remote Configuration Reference

Configure Temperature Control Basic Parameters

The controller supports the basic temperature control.

When the ambient temperature is outside the setpoint (target temperature) for a specific range, the controller will start heating or cooling until the ambient temperature returns to the setpoint. After reaching the setpoint, the system will continue working to a higher/lower temperature to prevent frequent control.

Prerequisites: Wiring settings are configured.

Configure by ToolBox
  1. Navigate to Device > General.
  2. Select the Temperature Control Mode and configure the related parameters.
    Note: The values must follow the rule: Heat Target - Heat Tolerance < Cool Target - Cool Tolerance, Heat Target + Heat Tolerance < Cool Target + Cool Tolerance.
    Parameter Description
    Temperature Control Mode Select from: Cool, Heat, Auto.

    Heat: Raises the temperature when it is below the heating target.
    Cool: Lowers the temperature when it is above the cooling target.
    Auto: Automatically switches between heating and cooling according to the ambient temperature.

    Target Temperature Resolution Select the adjustment step of target temperature.

    0.5: Increase or decrease target temperature by 0.5 each time.
    1: Increase or decrease target temperature by 1 each time.
    Heating Target Temperature Set the target temperature for heating. Range: 5~35 °C/41~95 °F.
    Cooling Target Temperature Set the target temperature for cooling. Range: 5~35 °C/41~95 °F.
    Heating Target Temperature Tolerance Defines the temperature difference allowed before heating starts or stops to prevents frequent HVAC cycling. Range: 0.1-5°C.
    Cooling Target Temperature Tolerance Defines the temperature difference allowed before cooling starts or stops to prevents frequent HVAC cycling. Range: 0.1-5°C.
    Heating Target Temperature Regulation Range Set the adjustable range of heating target temperature. Range: 5~35 °C/41~95 °F.
    Cooling Target Temperature Regulation Range Set the adjustable range of cooling target temperature. Range: 5~35 °C/41~95 °F.


  3. Tap Write to apply the configuration.
Remote Configuration Reference

Unilateral Tolerance

Important: This feature is configured by downlink and is not available in ToolBox.
The controller supports enabling Unilateral Tolerance to apply the tolerance only to the heating or cooling start point while keeping the stop point at the target temperature. This allows more precise control behavior for specific HVAC applications. It's disabled by default.

Remote Configuration Reference

Configure Fan Parameters

The controller supports controlling the fan.

Prerequisites: Any G wire is selected in Wiring settings.

Configure by ToolBox
  1. Navigate to Device > General.
  2. Select the Fan Mode to decide how the controller operate the fan in the system.
    Fan Mode Description
    Auto The fan runs when heating or cooling is active and stops when temperature control stops.
    On The fan runs continuously. This can be selected when only one G wire is selected.
    Circulate The fan runs for the configured duration during each hour when heating or cooling is inactive.
    Low/Medium/High Speed The fan runs in different speeds. These options can be selected when more than one G wire is selected.
    If the Fan Mode is Circulate, configure the fan Operation Time per hour.

    Optional: If the Fan Mode is Auto, configure Regulate Humidity as the following steps:
    1. Set the Target Humidity Range.
    2. Enable Regulate Humidity and configure the interval as required. When the ambient humidity is outside the target humidity range, the controller will open the fan for an interval per hour to dehumidify or humidify.

  3. (Optional) Enable Fan Delay and configure the time to delay the fan to close after the system stops cooling or heating.
  4. Tap Write to apply the configuration.
Remote Configuration Reference

Control Stage Switching

Important: This feature is configured by downlink and is not available in ToolBox.

When connected to a HVAC system with multiple control stages, the controller can automatically switches stages according to temperature difference. This helps balance comfort and energy consumption.

Temperature Delta (ΔT): Defines the difference between the ambient temperature and the startpoint to determine the control stage:
  • ΔT < ΔT1 → 1-stage heating, cooling or fan
  • ΔT1 ≤ ΔT ≤ ΔT2 → 2-stage heating, cooling or fan
  • ΔT > ΔT2 → 3-stage heating, cooling or fan
The default values are 3°C for ΔT1 and 5°C for ΔT2. ΔT2 must be greater than ΔT1. If a higher stage is not supported, the controller will use the current highest stage.



Setforward: When enabled, the controller automatically switches to the higher stage based on temperature delta values; when disabled, the controller uses only the initial stage determined by the temperature delta until the setpoint is reached. It's enabled by default.

Setback: When enabled, the controller automatically switches to the lower stage based on temperature delta values; when disabled, the controller uses only the initial stage determined by the temperature delta until the setpoint is reached. It's enabled by default.

Stage-up Switch: If the ambient temperature does not change by 1 °C within 5 minutes in the current stage & fan, the controller will switch to a higher stage & fan. The change value and the time can be adjusted as required.

Remote Configuration Reference