Navien NHB H Series Installation And Operation Manual page 110

Press the Back button (
screen or menu.
Item
1. Elapsed Time After Elapsed time since
Install installation
Number of times the
2. HEX Overheat -
heat exchanger overheat
No. of Times
protection has activated
3. Flame Loss - No. of Number of times a flame
Times loss/misfire has occurred
4. 2nd ignition - No. Number of second
of Times ignition attempts
5. 3rd ignition - No. Number of third ignition
of Times attempts
6. 4th ignition - No. Number of fourth ignition
of Times attempts
7. 5 ~10th ignition - Number of tenth ignition
No. of Times attempts
Number of times supply
△
8. T Limit - No. of
return temperature limit
Times
control has activated.
Number of times
9. Supply Limit - No. Recirculation supply
of Times temperature limit control
has activated.
Number of times
△
10. T High - No. of combustion stopped
Times due to supply return
temperature.
110 Operating the Boiler
) to return to the previous
Description
11.13.2 Viewing Input and Output
Status
To view the boiler's input and output status, press
the Back button ( ) and the Menu button (
simultaneously for 3 seconds, and then select
"2. Input/Output Status".
Rotate the Command dial (
the information items. Press the Command dial (
to select an item and view the information.
Press the Back button (
screen or menu.
Item
1. SH1 Thermostat Space heating thermostat
Status 1 input status
2. SH2 Thermostat Space heating thermostat
Status 2 input status
3. SH3 Thermostat Space heating thermostat
Status 3 input status
4. DHW Thermostat DHW thermostat 1 input
Status status
5. Boiler Pump
Boiler pump output status
Status
6. DHW/Zone1 DHW / Zone 1 pump
Pump Status output status
7. Zone2 Pump Zone 2 pump output
Status status
8. system/Zone3 System / Zone 3 pump
Pump Status output status
Zone 1 valve output
9. Zone V/V 1 Status
status
)
) to switch between
)
) to return to the previous
Description