Navien NBH Series, User'S Information Manual

Page: 10 / 27

10 Operating the Boiler
3.3 Viewing Basic Information
To view information about the boiler, press the Mode button three
times. “INFO” will appear on the display.
MODE
Press the + or – buttons to switch between the information types.
Display Description
psi
O/R S R
Space heating supply water
temperature (°F)
psi
O/R S R
Space heating return water
temperature (°F)
psi
O/R
S
R
Outdoor air temperature (°F)
(from Outdoor Temperature Sensor)
psi
O/R S R
Outdoor reset curve
-: Not in use.
1: Finned tube baseboard
2: FAN coil
3: Cast iron baseboard
4: Low mass radiant
5: High mass radiant
6: Radiator
7: Custom (set by installer)
3.2.2 Adjusting the DHW Indirect Supply
Temperature
WARNING
Before adjusting the water temperature, read “To prevent
burns:” on page 4 carefully. Water above 120°F can cause
instant scalding, severe burns, or death.
To adjust the water temperature:
1. Press the Mode button twice. The DHW mode icon turns on.
2. Press + (Up) or – (Down) buttons until the desired temperature
appears on the display.
MODE
You can adjust the temperature while the display is flashing. Once
the display stops flashing, the temperature setting is stored.
Note Ɣ
Take note of the original DHW temperature in case
you want to restore it to the default.
Ɣ
The default DHW temperature range is 104°F (40°C,
Absolute MIN) to 180°F (82°C, Absolute MAX).
Ɣ
You can adjust the temperature range in the
parameter settings menu.
Ɣ
The boiler will retain your settings during a power
outage.