9. Press the button to confirm the selection.
10. Use the rotary knob to select and change the CN2 setting.
11. Press the button to confirm the selection.
12. Use the rotary knob to select Confirm to confirm the changed
numbers.
13. Press the button to confirm the selection.
9.5.2
Carrying out an auto detect
The auto detect-function scans for devices and appliances connected to
the L-Bus and S-Bus. This function must be used when a PCB has been
replaced or removed from the boiler.
1. Press the button.
2. Use the rotary knob to select Advanced Service Menu.
3. Press the button to confirm the selection.
4. Use the rotary knob to select Auto Detect.
5. Use the rotary knob to select Confirm to carry out the auto-detect.
6. Press the button to confirm the selection.
9.5.3
Restoring the commissioning settings
This option is only available when the commissioning settings were saved
on the control panel and allows you to restore these settings.
1. Press the button.
2. Use the rotary knob to select Advanced Service Menu.
3. Press the button to confirm the selection.
4. Use the rotary knob to select Revert commissioning settings.
5. Press the button to confirm the selection.
6. Use the rotary knob to select Confirm to restore the commissioning
settings.
7. Press the button to confirm the selection.
9.5.4
Resetting to factory settings
You can reset the boiler to the default factory settings.
1. Press the button.
2. Use the rotary knob to select Advanced Service Menu.
3. Press the button to confirm the selection.
4. Use the rotary knob to select Reset to Factory Settings.
5. Press the button to confirm the selection.
6. Use the rotary knob to select Confirm to restore the factory settings.
7. Press the button to confirm the selection.
9.6
Advanced settings
9.6.1
Setting for process heat application
Important
The service life of the boiler may be reduced if it is used for
process heat applications.
For this application, adjust the following parameters:
1. Set parameter DP140 to Process heat.
2. Set parameters DP005 and DP070 to the required value for this
installation.
3. If using a DHW sensor; set parameters DP006 and DP034 to the
required value for this installation.
9 Installer instructions
84
C 340 / C 640
7762666 - v.02 - 29092020
