Adjusting The Temperature - Navien NHB Series Installation & Operation Manual

11.2 Adjusting the Temperature

11.2.1 Adjusting the Space Heating Temperature
To adjust the heating temperature on the screen, tap
to select the space heating temperature in the SH Set Temp menu.
The current temperature setting is displayed in the menu.
The space heating temperature cannot be adjusted
Note
if the boiler is operating as a sub unit in a cascade
system. The main unit's set temperature will be
displayed on the screen.
In case of outdoor reset sensor malfunction, the
boiler will operate at this set temperature.
Take note of the original heating temperature in case
you want to restore it to the default.
The default space heating supply water temperature
range is 104°F (40°C, Absolute MIN) to 180°F (82°C,
Absolute MAX).
The default space heating return water temperature
range is 86°F (30°C, Absolute MIN) to 149°F (65°C,
Absolute MAX).
You can adjust the temperature ranges in the
parameter settings menu.
11.2.2 Adjusting the DHW Indirect Supply
Temperature
To adjust the water temperature on the screen, tap
select the DHW Indirect Supply temperature in the DHW Set Temp
menu. The current temperature setting is displayed in the menu.
or
Note
Take note of the original DHW indirect supply
temperature in case you want to restore it to the
default.
When using the DHW tank temperature sensor, the
default range is 86 °F (30 °C) to 149 °F (65 °C).
When using the Aquastat, the default range is 104 °F
(40 °C, Absolute Min.) to 180 °F (82 °C, Absolute Max.).
You can adjust the temperature ranges in the
parameter settings menu.
or to
Operating the Boiler 91