Navien NCB-190/060H, User'S Information Manual

Page: 12 / 31

12 Operating the Boiler
Item Description
5. AHU SH Set
Temp
AHU Space Heating Set
Temperature (°F)
●
If AHU is not connected,
“--” is displayed.
●
The temperature is
displayed by the degree
of 1 for Fahrenheit
and by the degree
of 0.5 for Celsius. It
is due to the degree
control specifications
of 0.5 degree for the
communication type AHU.
6. Supply Temp
Heating Supply Temperature
(°F)
7. Return Temp
Boiler Return Temperature
(°F)
8. Sys Supply Temp System Supply Temperature
(°F)
9. Sys Return Temp System Return Temperature
(°F)
10. Outlet2 Temp
Heat Exchanger Outlet
Temperature (°F)
11. Outlet Temp Outlet Temperature (°F)
12. Inlet Temp Inlet Temperature (°F)
13. Outdoor Temp Outdoor Temperature (°F)
14. Approx. Boiler
Flow
SH Flow Rate (GPM)
15. DHW Flow DHW Flow Rate (GPM)
16. Water Pressure Water Pressure (psi)
17. Flame Value
Flame Detector AD Value
●
Flame On: 8 bit AD Values
equal to or lower than 70
●
Flame Off: 8 bit AD Values
equal to or higher than
175
18. Fan Target RPM Set Fan Speed (RPM)
19. Fan Current
RPM
Fan Speed (RPM)
20. Fan Target APS Set APS Voltage (V)
21. Fan Current
APS
APS Voltage (V)
3.3 Accessing Basic Menu Items
In the Main Menu screen, you can view the boiler’s
operating conditions, configure the space heating
and DHW temperatures, and review error history.
Press the Menu button ( ) to enter the Main Menu
screen.
To view information about the boiler, press the
Menu button ( ), and then select “1. Status
Information”.
Rotate the Command dial ( ) to switch between
the information items. Press the Command dial ( )
to select an item and view the information.
Press the Back button ( ) to exit information view
mode.
Item Description
1. Operation State Current Operation State
2. Heat Capacity Heat Capacity (%)
3. SH Set Temp
Space Heating Set
Temperature (°F)
4. DHW Set Temp DHW Set Temperature (°F)