Navien NCB-190/060H Installation & Operation Manual page 109

Press the Back button (
screen or menu.
Item
Set the hot water temperature (°F).
1. DHW Set Setting range: 86 - 140°F (30 -
●
Temp 60°C)
Default: 122°F (50°C)
●
When only one NCB-H boiler is
connected:
Set the Recirculation type and
Schedule settings.
Recirculation type
●
- No Recirculation
- Combi Pre-Heat
- External
Note
Recirculation type settings (Combi
Pre-heat/External)
Set to Combi Pre-heat (Default:
●
2. DHW
Always On)
Recirculation
- Always On
- Intelligent
- Weekly
Note
Set to External (Default: Always
●
On)
- Always On
- Intelligent
- Weekly
- Aquastat
- Manual
) to return to the previous
Description
External recirculation
cannot be used for
cascade systems.
Intelligent mode cannot
be used for cascade
systems.
Combi Pre-Heat
When using the combi pre-heat feature, you
can choose commands in the menu to preheat
according to the set DHW temperature.
Item
Set to repeat DHW Recirculation
1. Always On
(default).
Set to detect DHW usage for a
2. Intelligent* week and repeat the detected
cycle.
The user can choose commands
for DHW Recirculation on a weekly
basis.
1. 1 Day: schedule a command
for the week.
3. Weekly*
2. 3 Day: schedule commands
for Weekdays, Saturdays, and
Sundays.
3. 7 Day: schedule commands for
each day of the week.
* To choose this option you must set up the Time settings
in the Configuration menu.
If there is a SH Demand signal during
Note
combi pre-heat, the space heating will
take priority.
Description
Operating the Boiler 109