Navien LCB700-21RS Installation & Operation Manual page 63

11.5.3 Setting the Operation Parameters
To set the boiler's operation parameters, press the Back button
( ) and the Menu button (
and then select "3. Parameter Settings".
CAUTION
Parameters must be set by a qualified professional with
an extensive understanding of the boiler system. Setting
parameters improperly may lead to property damage or
injury.
In the password screen, rotate the Command dial (
change numbers and places, and press the Command dial (
to enter the password.
The factory default password is "1234".
) simultaneously for 3 seconds,
) to
After entering the parameter setting screen, rotate the
Command dial (
increase/decrease setting values. Press the Command dial (
to select a parameter or to confirm after making changes.
Press the Back button (
menu.
System/Regular Models
Item
1. Supply MIN Set-
point
2. Supply MAX Set-
point
3. CH Burning Off
Diff
4. CH Buring On Diff
)
5. Anti Fast Cycling
Time*
6. Burner Switching
Diff
7. Freeze protection
8. Boiler Pump Delay
9. Low Pressure
) to switch between the parameters or to
) to return to the previous screen or
Description
Set the central heating supply
minimum temperature.
Setting range: 25°C – [MAX Set-
point – 20°C]
Default: 40°C
Set the central heating supply
maximum temperature.
Setting range: [MIN Set-point +
20°C] – 85°C
Default: 85°C
Set the temperature range for turning
off central heating.
Setting range : 0°C – 30°C
Default : 2°C
Set the temperature range for turning
on central heating.
Setting range : 1°C – 30°C
Default : 13°C
Set the anti-fast cycling time.
Setting range: 0 – 20 min
Default: 3 min
Set the temperature range for the SH
combustion switch.
Setting range: 5°C– 30°C
Default: 5°C
Set the pump freeze protection
temperature.
Setting range: 6°C – 10°C
Default: 10°C
The system freeze protection
Note
temperature is set based on
the pump freeze protection
temperature.
Set the boiler pump off delay time.
Setting range: 30 – 40 min
Default: 40 min
Set the low water pressure.
Setting range: 0.1 – 1.2 bar
Default: 0.4 bar
Operating the Boiler
)
63