| Overview
The MyStat Startup UI guides the user through the initial device setup and operational mode selection during device power ON or reboot. During startup, the user can select one of four operational modes: Pair with CCU, Standalone, BACnet MSTP, or Test Mode. Based on the selected mode, the device either performs CCU pairing, configures standalone operation, initializes BACnet MSTP communication settings, or enters output testing mode for validation purposes. After successful configuration in Pair with CCU, Standalone, and BACnet MSTP modes, the device automatically restarts and transitions to the Home screen for normal runtime operation.
| Startup navigation Flow
| Launch Screen
When the device powers ON or reboots, the Launch Screen is displayed.
After startup initialization completes, the device automatically transitions to the Mode of Operation screen.
| Mode of Operation
The Mode of Operation screen allows the user to select the required operating mode.
Available modes:
- Pair with CCU
- Standalone
- BACnet MSTP
- Test Mode
Use the UP or DOWN arrow to select the required mode.
Press START SETUP using the Menu button to begin the selected setup workflow.
| Pair with CCU
The Pair with CCU workflow is used to connect the device with the CCU during startup.
Select Pair with CCU from the Mode of Operation screen by using the UP or DOWN arrow and press START SETUP using the Menu button to begin the pairing process.
| Advertising
After starting the Pair with CCU workflow, the device enters Advertising mode.
The Advertising screen displays:
- Bluetooth address
- CANCEL option
During this state, the device waits for automatic CCU pairing.
If pairing is successful, the Paired with CCU screen is displayed.
| Manual Pairing
If no pairing activity occurs for approximately 15 seconds during Advertising mode, the MANUAL PAIR option appears on the screen.
Select MANUAL PAIR using the Menu button to manually enter the LWMESH address for pairing.
The address can be entered digit-by-digit using:
- SET
- NEXT DIGIT
After confirming the address, the device starts the manual pairing process.
If pairing is successful, the Paired with CCU screen is displayed.
If pairing fails or CANCEL option is selected by pressing the Fan icon, the Unable to pair with CCU screen is displayed.
| Restart and Home Screen
After successful pairing, the device automatically restarts and the startup sequence runs again.
Once initialization completes, the device transitions to the Home screen.
| Standalone Mode
The Standalone workflow allows the device to operate independently without CCU or BACnet connectivity.
Select Standalone from the Mode of Operation screen by using the UP or DOWN arrow and press START SETUP using the Menu button to begin the standalone setup process.
| Profile Selection
The Profile Selection screen allows the user to select the required equipment type.
Available profiles:
- Package Unit
- Heat Pump
- 2 Pipe FCU
- 4 Pipe FCU
Use the UP or DOWN arrow to select the required profile and press NEXT using the Menu button to continue.
The selected profile determines the available configuration options during setup.
| Equipment Stages
The Equipment Stages screen allows the user to configure the required cooling and heating stages.
Available configurations include:
- Cooling stages
- Heating stages
Use the UP or DOWN arrow to select the configurations and press Menu button to SELECT the configuration.
Use the UP or DOWN arrow to modify the stage values and press Menu button to DESELECT.
Press NEXT using the Menu button to continue.
| Configure Outputs
The Configure Outputs screens allow the user to configure and map the required outputs for the selected equipment profile.
Available output configurations include:
- Cooling
- Heating
- Fan
- Additional outputs
Use the UP or DOWN arrow to select the required output and press the Menu button to SELECT the configuration.
Use the UP or DOWN arrow to modify the output configuration and press the Menu button to DESELECT the configuration.
Press NEXT using the Menu button to continue.
| Select Temperature Unit
The Select Temperature Unit screen allows the user to configure the preferred temperature unit for device operation and display.
Available options include:
- Celsius (°C)
- Fahrenheit (°F)
Use the UP or DOWN arrow to select the required temperature unit and press NEXT using the Menu button to continue.
| Set Device Time
The Set Device Time screen allows the user to configure the device time for schedule operation.
Available configurations include:
- Day
- Hour
- Minutes
Use the UP or DOWN arrow to select the required field and press the Menu button to SELECT the configuration.
Use the UP or DOWN arrow to modify the selected value and press the Menu button to DESELECT the configuration.
Press NEXT using the Menu button to continue.
| Set Schedule
The Set Schedule screens allow the user to configure the required weekday and weekend schedules.
Available schedule configurations include:
- Weekday events
- Weekend events
Use the UP or DOWN arrow to select the required schedule type and press the Menu button to SELECT the configuration.
The selected schedule screen displays the available events. Up to 4 events can be configured for each schedule type. Events can be enabled, disabled, or modified individually.
Use the UP or DOWN arrow to select the required event and press the Menu button to SELECT the event configuration.
Each schedule event includes:
- Status
- Start Time
- Cool Temp
- Heat Temp
- Mode
- Occupancy
Use the UP or DOWN arrow to select the required configuration and press the Menu button to SELECT the field.
Use the UP or DOWN arrow to modify the selected value and press the Menu button to DESELECT the field.
Navigate BACK to the SET SCHEDULE screen.
After completing the required schedule configurations, press FINISH using the Menu button to continue.
| Restart and Home Screen
After setup completion, the Success screen is displayed.
he device then automatically restarts and applies the previously configured standalone settings.
Once initialization completes, the device transitions directly to the Home screen for normal standalone runtime operation.
| BACnet MSTP Mode
The BACnet MSTP workflow allows the device to operate within a BACnet MS/TP network.
Select BACnet MSTP from the Mode of Operation screen by using the UP or DOWN arrow and press START SETUP using the Menu button to begin the BACnet setup process.
| COM Settings
The COM Settings screens allow the user to configure the required BACnet communication parameters.
Available configurations include:
- MAC Address
- Device ID
- Baud Rate
- Parity
- Stop Bits
Use the UP or DOWN arrow to select the required field and press the Menu button to SELECT the configuration.
Use the UP or DOWN arrow to modify the selected value and press the Menu button to DESELECT the configuration.
Press NEXT using the Menu button to continue.
| Profile Selection
The Profile Selection screen allows the user to select the required equipment type.
Available profiles:
- Package Unit
- Heat Pump
- 2 Pipe FCU
- 4 Pipe FCU
Use the UP or DOWN arrow to select the required profile and press NEXT using the Menu button to continue.
The selected profile determines the available configuration options during setup.
| Equipment Stages
The Equipment Stages screen allows the user to configure the required equipment stages based on the selected equipment profile.
The available stage configurations depend on the selected profile:
- Package Unit → Cooling stages and Heating stages
- Heat Pump → Compressor stages
- 2 Pipe FCU → No equipment stage configuration
- 4 Pipe FCU → No equipment stage configuration
Use the UP or DOWN arrow to select the configurations and press the Menu button to SELECT the configuration.
Use the UP or DOWN arrow to modify the stage values and press the Menu button to DESELECT the configuration.
Press NEXT using the Menu button to continue.
| Configure Outputs
The Configure Outputs screens allow the user to configure and map the required outputs for the selected equipment profile.
Available output configurations include:
- Cooling
- Heating
- Fan
- Additional outputs
Use the UP or DOWN arrow to select the required output and press the Menu button to SELECT the configuration.
Use the UP or DOWN arrow to modify the output configuration and press the Menu button to DESELECT the configuration.
Press NEXT using the Menu button to continue.
| Select Temperature Unit
The Select Temperature Unit screen allows the user to configure the preferred temperature unit for device operation and display.
Available options include:
- Celsius (°C)
- Fahrenheit (°F)
Use the UP or DOWN arrow to select the required temperature unit and press NEXT using the Menu button to continue.
| Restart and Home Screen
After setup completion, the Success screen is displayed.
The device then automatically restarts and applies the previously configured BACnet communication and device settings.
Once initialization completes, the device transitions directly to the Home screen for normal BACnet runtime operation.
| Test Mode
The Test Mode workflow allows direct output testing from the device UI.
Select Test Mode from the Mode of Operation screen by using the UP or DOWN arrow and press START SETUP using the Menu button to begin output testing.
The Test Mode screen displays available outputs and their current operational state.
Available outputs include:
- Y
- W
- G
- UO1 [Relay]
- UO2 [Relay]
- UO1 [A-Out]
- UO2 [A-Out]
- UI
Use the UP or DOWN arrow to select the required output and press the Menu button to SELECT the output.
Press the Menu button to DESELECT the selected output.
The user can:
- Enable outputs
- Disable outputs
- Verify relay behavior
- Verify analog output values
When testing is completed, navigate BACK to return to the Mode of Operation screen.
Test Mode does not automatically restart the device or enter the Home screen.
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