Navien NHB Series Installation & Operation Manual page 93

11.5.1 Viewing Basic Information
To view information about the boiler, tap the Control button (
> Status on the screen.
Tap an item to view the information.
Item
1. SH Set Temp Space heating set temperature (°F)
2. DHW Set Temp DHW indirect supply temperature (°F)
3. SH Supply Temp Heating supply temperature (°F)
4. SH Return Temp Boiler return temperature (°F)
5. System Supply
System supply temperature (°F)
Temp
6. System Return
System return temperature (°F)
Temp
7. Outdoor Temp Outdoor temperature (°F)
8. Exhaust Temp Exhaust temperature (°F)
9. Approx. Boiler Flow Flow rate (GPM)
10. Water Pressure Water pressure (psi)
Flame detector AD value
Flame On: 8bit AD values equal to or
11. Flame Value lower than 70
Flame Off: 8bit AD values equal to or
higher than 175
12. Heat Capacity Heat capacity (%)
13. Target RPM Set fan speed (RPM)
14. Current RPM Fan speed (RPM)
15. Target APS Set APS voltage (V)
16. Current APS APS voltage (V)
)
Description
11.5.2 Setting the Space Heating Operation
To set the boiler's space heating operation, tap the Control button
( ) > SH Control on the screen.
Tap an item to set the space heating operation settings.
Item
Select a heating control type.
1. Supply: Supply temperature
2. Return: Return temperature
3. System Supply: System Supply
1. SH Control Method
temperature
4. System Return: System Return
temperature
Default: Supply
Set the Pump1.
Zone1 Pump: The DHW pump is
not used and three zone pumps are
available
2. Pump1 Setting
DHW Pump: The DHW pump is used
and two zone pumps are available
Default: DHW Pump
Enable or disable the zone-specific
temperature control function.
Default: Disable
Note
3. Zone Setting
Description
If enabled, you can set the
zone priority by tapping
Priority Set. For more
information about the
zone-specific temperature
control, refer to "Setting
Zone-Specific Temperature
Control Function in Detail. "
Operating the Boiler 93