Navien LCB700-21RS Installation & Operation Manual page 66

Item
4. 2 Way Valve
5. 3 Way Valve
6. Flow Control Valve
(Combi Only)
7. Mixing Valve
(Combi Only)
66 Operating the Boiler
Description
Test the 2 way valve operation.
The 2 way valve is turned on as
soon as you enter the test mode.
Press the command dial (
toggle the valve operation (On ->
Off/Off -> On).
This option is not
Note
performed on Combi
boilers.
Test the 3 way valve operation.
The 3 way valve is turned on as
soon as you enter the test mode.
Press the command dial (
toggle the valve operation
[On(DHW) -> Off(CH)/Off(CH) ->
On(DHW)].
Test the Flow control Valve operation.
Rotate the valve from its current
position to fully open (0%), then
fully closed (100%) and then back
to the starting position while
checking feedback.
Display of the valve close ratio
% display of "FEEDBACK" when
detecting the feedback
Test the Mixing Valve operation.
Rotate the valve from tis current
position to fully open (0%), then
fully closed (100%) and then back
to the starting position while
checking feedback.
Display of the valve close ratio
% display of "FEEDBACK" when
detecting the feedback
11.5.5 Setting the Special Operation Modes
To operate the boiler in special operation modes, press the Back
button ( ) and the Menu button (
3 seconds, and then select "5. Special Operations".
) to
) to
Rotate the Command dial (
modes. Press the Command dial (
mode.
The boiler resumes operation in normal operation mode if no
input is detected for 3 hours.
Press the Back button (
menu.
Item
1. Normal (Default)
2. Stage 1 (Low)
3. Stage 2 (High)
) simultaneously for
) to switch between the operation
) to select an operation
) to return to the previous screen or
Description
Set the boiler to run in normal
operation mode.
Set the boiler to run in stage 1 (low)
operation mode.
Set the boiler to run in stage 2 (high)
operation mode.