Setting The Water Temperature - Navien NR-20DU Manual

Setting the water temperature

or
Setting the water temperature above
125°F (52°C)
or severe burns.
can cause instant scalding
Two levels of temperature settings are available
depending on the DIP switch settings.
Level 1: 98~120°F (36~50°C)
Press the Up or Down button to adjust the
temperature. The temperature changes by 1°F
(0.5°C).
Level 2: 120~140°F (50~60°C)
Press and hold the Up button for 2 seconds to
increase the temperature by 5°F (2°C).
Press the Down button to decrease the
temperature by 5°F (2°C).
To save the temperature setting, press the OK
button.
For temperatures higher than 140°F
Note
(60°C), check the High temperature
mode in the next section.
The settings are automatically saved
when you do not press any buttons for
5 seconds.