## Fan Function Settings in Fan Coil Module

### Overview
The Fan Function Settings page in the Fan Coil Module provides options for controlling the fan speed, operating mode, and feedback settings. It allows for a flexible and customizable approach to managing fan coil devices.

### Key Parameters

- ***Controlling Fan Level Count***: Specifies the number of fan speeds to control. You can select a value between 1 and 5.

- ***Fan Operating Mode***: Defines the logic for fan operation. Options include:
  - **Changeover Switch**: Activates the desired fan speed output by turning off the active fan speed. A time delay between fan level changes is set by 'Time Delay Between Fan Level Changes.'
  - **Step Switch**: Activates multiple fan speeds sequentially. For example, if Fan Speed 4 is selected, contacts 1-2-3-4 are opened, and 5 is closed.

- ***Command Value Lower Limit for Fan Levels 1-5***: Sets the minimum percentage control signal from the thermostat control object that will activate each fan speed.

- ***Manual Control Input Object***: Allows the user to select the fan speed, overriding the thermostat control. Options include:
  - **Disabled**: Manual control is off.
  - **1 Bit**: Separate control objects are opened for each fan speed.
  - **1 Byte Enumerated**: Accepts a 1-byte object for fan speed. For example, to set Fan Speed 4, the value 4 should be sent.
  - **1 Byte Scaling**: Accepts values defined by 'Command Value Lower Limit' and adjusts the output accordingly.

- ***Auto/Manual Object Polarity***: Sets the polarity for the auto/manual fan speed control object.

- ***Next/Previous Fan Speed Object***: Enables or disables the control object for incrementing or decrementing fan speed.

- ***Automatic Fan Manual to Auto Changeover***: Allows the fan to automatically switch back to auto mode after a set time when manually controlled. 

- ***Reset Time***: Sets the delay for switching from manual to automatic mode.

- ***Fan Feedback Object***: Provides feedback on the current fan speed. Options include:
  - **Disabled**: Feedback is off.
  - **1 Bit**: Separate feedback objects for each fan speed.
  - **1 Byte Enumerated**: A 1-byte feedback object is opened, and predefined values are sent.
  - **1 Byte Scaling**: A 1-byte feedback object is opened, and predefined scaling values are sent.

### Purpose
- To offer a flexible and customizable control over the fan coil device.
- To provide real-time feedback and manual control options for better user experience.

### Usage
These settings should be configured during the initial setup in the ETS software and can be fine-tuned as needed for specific use-cases.
