Navien NFB Series User Manual

86 Operating the Boiler
Item Description
17. Fan Target APS Set APS voltage (V)
18. Fan Current APS APS voltage (V)
19. Exhaust Temp Exhaust temperature (°F)
20. Outdoor Reset Outdoor reset status (Enable / Disable)
21. Outdoor Reset
Curve
Outdoor reset curve load type (displayed
when the outdoor reset option “20.
Outdoor Reset” is enabled)
1: Finned Tube Baseboard
2: FAN Coil
3: Cast Iron Baseboard
4: Low Mass Radiant
5: High Mass Radiant
6: Radiator
7: Custom (set by installer)
22. Boost Interval
Time
Boost interval set time (min)
23. Model Model type
24. Gas Fuel type (NG/LPG)
25. Main F/W Ver Main firmware version
26. Panel F/W Ver Controller panel firmware version
11.3.3 Setting the Space Heating Operation
To set the boiler’s space heating operation, press the Menu button
(
), and then select “3. Space Htg Operation”.
Rotate the Command dial ( ) to switch between the list items or
to increase/decrease setting values. Press the Command dial (
)
to select an item or to confirm after making changes.
Press the Back button (
) to return to the previous screen or
menu.
Item Description
1. SH Set Temp
Set space heating target temperature
(°F).
●
Setting range: 104–180°F (40–82°C)
●
Default: 180°F (82°C)
This option is available only when
“1. Space Htg ON/OFF” is set to
“Enabled”.
2. Zone Settings
Set the system type and operation
details.
1. Zone Pump System
2. Zone Valve System
2-1. Pump 1 Settings
Set the pump 1 type.
1. Zone 1 pump
2. DHW pump
3. Outdoor Reset
ON/OFF
Enable or disable the Outdoor Reset
Control feature (Default: Enabled).
3-1. Outdoor Reset
Curves**
Select a heatload type fo the Outdoor
Reset Control.
1: Finned Tube Baseboard
2: FAN Coil
3: Cast Iron Baseboard
4: Low Mass Radiant
5: High Mass Radiant
6: Radiator
7: Custom (set by installer)
This option is available only when
“2. Outdoor Reset ON/OFF” is set to
“Enabled”.
3-2. Outdoor High
Temp Set*
Set the maximum temperature for the
Outdoor Reset Control.
●
Setting range: [MIN Set-point + 9°F
(5°C)] – 104°F (40°C)
●
Default: 70°F (21°C)
3-3. Outdoor Low
Temp Set*
Set the maximum temperature for the
Outdoor Reset Control.
●
Setting range: -4°F (-20°C) – [MAX Set-
point – 9°F (5°C)]
●
Default: 14°F (-10°C)
3-4. WWSD Temp
Set the Warm Weather Shut-down
temperature.
●
Setting range: OFF, 50°F (10°C) –
104°F (40°C)
●
Default: OFF
3-5. WWSD On Diff
Set the differential temperature to
deactivate the Warm Weather Shut-
down.
●
Setting range: 0°F (0°C) – 36°F (20°C)
●
Default: 5°F (3°C)

Navien NFB Series Specifications

General

Brand	Navien
Model	NFB Series
Category	Boiler
Language	English