Navien NR-21DU, Руководство пользователя

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14
Turning the Controller On or Off
To turn the controller on or off, press the Power
button.
When the power is on,
The LCD display turns on.
The LED indicator turns green.
Hot water temperature is displayed.
Note
When an error occurs, the LED
indicator turns RED and blinks (except
for Cascade mode).
The backlight stays on for 8 seconds
when a button is pressed.
14
Setting the water temperature
Setting the water temperature above
125°F (52°C) can cause instant scalding
or severe burns.
The Range of temperature settings is different
depending on the Water Heaters.
Range : 98 ~ 140°F (36~60°C)
NPN Non-Condensing Water Heaters
Range : 98 ~ 140°F (36 ~ 60°C)
NPE-A2/S2 Condensing Water Heaters
Range : 97 ~ 140°F (36 ~ 60°C)
Press the Up or Down button to adjust
the temperature. The temperature
changes by 1°F (0.5°C)
Note The settings are automatically saved
For temperature higher than 140
°F
(60
°C
),
Check the High Temperature mode in the
next section.
when you do not press any buttons for
5 seconds.
or