Navien NCB-24LSWE, Service Manual

Page: 38 / 144

36 NCB Service Manual Version 1.0
The temperature can be adjusted while the display is
flashing. If no buttons are pressed for 5 seconds or if the
ECO button is pressed, the current temperature setting will
be stored automatically.
NOTE

Record the original heating
temperature setting in case you
want to restore it to the default.

The default space heating supply
water temperature range is 40°C to
90°C.

The boiler will retain its settings
during a power outage.
4.4.7 Adjusting the DHW Temperature
WARNING
Before adjusting the water
temperature, carefully read “To
prevent burns:” on page 5. Water
temperatures above 52°C can cause
instant scalding, severe burns, or
fatality.
To adjust the water temperature:
1. Ensure that all hot water taps are closed and that all
internal and external circulation pumps are off.
2. Press the DHW button. The DHW temperature will
flash
3. Press + (Up) or – (Down) buttons until the desired
temperature appears on the display.
You can adjust the temperature while the display is flashing.
Once the display stops flashing, the temperature setting is
stored.
NOTE
Record the original DHW temperature
setting in case you want to restore it
to the default.

The default DHW temperature
range is 30°C to 65°C.

The boiler will retain its settings
during a power outage.