Navien LCB700-21RS Installation & Operation Manual page 53

11.1.2 Buttons and Command Dial
Using the buttons and the Command dial on the front panel,
you can turn on or off the boiler, monitor the current operation
status, and set the values required for the boiler's operation,
such as central heating and DHW supply temperatures. Refer to
the following table for detailed information.
Back button
a
Return to the previous menu or screen.
Power button
c
Turn on or off the boiler.
a
Mode button
b
Enter the boiler's main menu.
Command dial
Rotate to switch between menu items,
d
or to increase/decrease values.
Press to make a selection or to confirm
changes.
b
c
d
Operating the Boiler 53