Navien NPE-180A Service Manual page 39

4.7.7 Button
Button
Description or
Diagnostic
name
Short Key
[Diagnostic] short key
[INFO] short key
[RESET] short key
[PLUS] short key
[MINUS] short key
Long Key combination
[POWER] long key(1 sec)
[INFO] long key(2 sec)
[RESET] long key(5 sec)
[Diagnostic] long key(5 sec)
[Diagnostic] long key(10 sec)
[PLUS] + [MINUS] long key (10 sec)
[Diagnostic]+[PLUS] long key(5 sec) Cascade: assigns master unit and completes set-up
[Diagnostic]+[MINUS] long
key(2 sec)
[Diagnostic]+[RESET] long
key(5 sec)
[Diagnostic]+[POWER] long
key(5 sec)
[Diagnostic]+[PLUS]+[RESET]+[PO
WER] long key(5 sec)
* While buttons are being pressed on the front panel, the keypad will remain lit to its maximum brightness. After pressing a button, the keypad will dim to
medium brightness for 5 seconds, then dim to minimum brightness for 5-10 seconds and then completely turn OFF 10 seconds later.
* Button entries are recognized after pressing for a short period (50msec) and then releasing.
* If a button is pressed and held for a longer time as specified in the above chart, it will be recognized as a "long key" function.
38 NPE Service Manual
Reset Power
Function
Display of information for service
Display/confirmation of information for consumers
Error code release/reset
Item movement/UP
Item movement/DOWN
Function
Power ON/OFF
Error history display
Individual deletion of Error History /Tech Data
Advancement into Test Menu
Version display
High temperature water setting/release(NPE-240A only)
Cascade: assigns slave unit
Cancels cascade operation (from master unit) / removes
individual slave unit from cascade system
Cascade system power ALL ON/OFF
Factory reset
Information Plus
Must be in Normal mode or Error
Display mode
Works only at the relevant mode
Must be in Normal mode
Power turned OFF
Allows temperature settings
above 140°F (60°C)
Possible at Normal mode
Possible at Normal mode with
Cascade operation activated
Possible only at Master, and
possible only with power turned
OFF or at a Normal Operation
condition
Possible only with power turned
OFF
Minus
Remark
Remark
Version 2.21