Navien NFC-250/200H, Руководство пользователя

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12 Operating the Boiler
Item Description
5. AHU SH Set
Temp
Note
Use with iFlow Air
Handlers Only.
AHU Space Heating Set
Temperature (°F)
Ɣ
If AHU is not connected, “--”
will be displayed.
Ɣ The temperature is
displayed by 1 degree
increments for Fahrenheit
and by 0.5 degree
increments for Celsius.
This is due to the degree
control specifications of
0.5 degree for the AHU
communication type.
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. Outlet 2 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
Ɣ Flame On: 8bit AD values
equal to or lower than 70
Ɣ
Flame Off: 8bit 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)