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11.4 Adjusting the System Temperatures
Navien NHB-H boilers include multi-temperature zone priority feature that allows the boiler to operate at up
to 3 different temperatures. This built-in feature can be accessed from the front panel and eliminates the need
for additional accessories that are typically required for multi-temperature applications when used with a
combination of heating sources such as baseboard, in-floor heating, and/or an indirect DHW tank.
The boiler can be set up to adjust the priority based on the desired zone temperatures.
In normal operation mode, space heating temperature for each zone can be set depending on the settings in the
following table.
Zone Priority Settings
Disable
Enable
Enable
Enable
For more information on the zone settings and zone priority settings, refer to "11.8 Setting the Space Heating
Operation" on page 104.
11.4.1 Adjusting the Space Heating
Temperature (When "3. Zone Priority
Setting" is disabled)
To adjust the heating temperature:
1. In normal operation mode, rotate the Command
dial (
). The space heating temperature (
highlighted on the screen.
100 Operating the Boiler
Settings
Zone Settings
N/A
Zone Pump System
Zone Pump System
Zone Valve System
DHW Pump (Default)
) is
Pump 1 Settings
N/A
Space heating temperature settings
Space heating temperature settings
DHW Pump
for Zone 2 and Zone 3 ("Pump 1
Settings" is set to "DHW Pump".)
Space heating temperature settings
Zone1 Pump
for Zone 1, Zone 2 and Zone 3
Space heating temperature settings
for Zone 1, Zone 2 and Zone 3
2. Press the Command dial (
heating temperature. The highlighted section
will flash.
3. Rotate the Command dial (
left to increase or decrease the temperature.
4. Press the Command dial (
new temperature.
5. Press the Back button (
operation mode, or rotate the Command dial
(
) to adjust other operation conditions.
You can adjust the temperature while the
highlighted section is flashing. Once the flashing
stops, the current temperature setting is stored.
Space heating settings
) to select the space
) to the right or
) to confirm the
) to return to normal
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