Navien NFC-250/175H Installation Manual page 114

11.5.3 Setting the DHW Operation
To set the boiler's DHW operation, press the Menu
button ( ), and then select "3. DHW Operation".
Rotate the Command dial (
the list items or to increase/decrease setting values.
Press the Command dial (
confirm after making changes.
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)
●
114 Operating the Boiler
) to switch between
) to select an item or to
) to return to the previous
Description
Item
When only one NFC-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
Description
External recirculation
cannot be used for
cascade systems.
Intelligent mode cannot
be used for cascade
systems.