Navien NHB Series Installation & Operation Manual page 96

* This function will provide protection from growth of legionella
bacteria in the DHW tank only. It will not protect water supply
piping.
A mixing valve must be installed on the DHW supply line when this
mode is enabled as water temperatures will exceed 140°F (60°C).
11.5.4 Viewing Error History
When an error occurs, an error code is displayed on the status
display in the center of the screen, If you tap the status display on
the screen, an error pop-up will be displayed.
To view the error history, tap Open in the pop-up window. To
return to the main screen, tap Close.
Errors are displayed on the screen, with the error codes, time of
occurrence, and the total run time.
Tap Done to return to the previous screen or menu.
To view the error history in the EMS menu, tap the EMS
Note
button ( ) on the main screen, and then tap Error on
the top right of the screen.
96 Operating the Boiler
11.5.5 Viewing Other System Information
To view the miscellaneous system information, tap the EMS button
( ) > EMS Info on the screen.
Tap the dropdown button (
items.
Item
View space heating operation logs.
SH Run Time
Display option: Monthly/Daily
View DHW operation logs.
DHW Run Time
Display option: Monthly/Daily
View space heating gas consumption.
SH Gas Usage
Display option: Monthly/Daily
View DHW gas consumption.
DHW Gas Usage
Display option: Monthly/Daily
Live Status View current Status values.
) to switch between the information
Description