Navien NR-10P User Manual page 11

3
Rotate the dial till "9: tL" displays on the clock
icon.
18
4
When "9 : tL" is blinking, press "Program"
button, then first digit of the password blinks.
5
Rotate the dial between "0~9" and select the
first password number
6
After first-digit of the password is selecting,
press "Program" button, then setting is
completed and second-digit of the password
blinks.
19