Navien NCB-150E Service Manual page 35

Short Key
[Diagnostic] short key
[Mode] short key
[Reset] short key
[Plus] short key
[Minus] short key
Long Key combination
[Power] long key
(300msec)
[Mode] long key
(2 seconds)
[Reset] long key
(5 seconds)
[Diagnostic] long key
(5 seconds)
[Diagnostic] long key
(10 Seconds)
[Diagnostic]+[Plus]
+[Reset]+[Power]
long key (5Seconds)
* All button LEDs will be turned on to their maximum when buttons are pressed, and will be turned on at medium brightness at 5 second intervals from the
moment they are released and will be completely turned off after maintaining minimal brightness for 5 and 10 second periods.
* The button will be recognized as pressed once only when released after being pressed for over 50 msec from the time of pressing (Short Key)
* If the button is pressed until the Long Key reference time from initial pressing, then it will be recognized as a Long Key at the time the conditions are met.
34 NCB-E Service Manual
Function
Display of information for service
Sets heating temperature/hot water temperature
Displays/confirms information for customers
Error code release/cancellation
Item movement/increase and displays Level 1 Error code
(for Level 1 Error status)
Item movement/reduction and displays Level 1 Error code
(for Level 1 Error status)
Function
Power ON / OFF
Error history display
Individual deletion of Error History / Tech Data
Advancement into Test Menu
Version display
Factory reset
Remark
Converts () in order of Setting heating
temperature
=> Setting hot water temperature
=> Displaying customer information
=> Setting heating temperature (in
Normal Mode only)
Remark
Must be in normal mode or Error
Display mode
Works only at the relevant mode
Must be in normal mode
1. Parameter Setting
2. Error Check Mode Menu
3. Operation condition setting mode
Possible only with power turned OFF
Possible only with power turned OFF
Version 1.4