Navien NFB-175H, Руководство по установке, Страница: 106 / 135

106 Operating the Boiler
Press the Back button ( ) to return to the previous
screen or menu.
Item Description
1. Elapsed Time After
Install
Elapsed time since
installation
2. HEX Overheat -
No. of Times
Number of times the
heat exchanger overheat
protection has activated
3. Flame Loss - No. of
Times
Number of times a flame
loss/misfire has occurred
4. 2nd ignition - No.
of Times
Number of second
ignition attempts
5. 3rd ignition - No.
of Times
Number of third ignition
attempts
6. 4th ignition - No.
of Times
Number of fourth ignition
attempts
7. 5 ~10th ignition -
No. of Times
Number of tenth ignition
attempts
8.
△
T Limit - No. of
Times
Number of times supply
return temperature limit
control has activated.
9. Supply Limit - No.
of Times
Number of times
Recirculation supply
temperature limit control
has activated.
10.
△
T High - No. of
Times
Number of times
combustion stopped
due to supply return
temperature.
Item Description
3. PSI/BAR Setting
Select a water pressure
unit.
1. PSI
2. BAR
●
Default : PSI
4. Time Setting
Set the system clock
(RTC).
●
Display format: YYYY.
MM.DD / HH:MM:SS
5. Backlight Time
Setting
Set the Backlight On time.
●
Setting range: 0 – 60
sec
●
Default: 2 sec
11.6 Accessing Advanced Menu
Items
11.6.1 Viewing Service Information
To view service information about the boiler, press
the Back button ( ) and the Menu button ( )
simultaneously for 3 seconds, and then select
“1.Service Status Info”.
Rotate the Command dial ( ) to switch between
the information items. Press the Command dial ( )
to select an item and view the information.