Navien LCB700-21RS, Installation & Operation Manual

Page: 52 / 96

52 Operating the Boiler
11. Operating the Boiler
11.1.1 Icons and Digital Display
The icons and digital display on the front panel provide
important information required for the boiler’s operation. Refer
to the following table for detailed information.
a
Outdoor temperature
compensation (OTC)
Displayed when the outdoor
temperature compensation (OTC) is
enabled. b
Combustion
Displayed when the burner is
combusting.
c
System fault
Displayed when a system fault is
detected.
d
Anti-freeze
Displayed when the boiler is operating
in anti-freeze mode.
e
Schedule programming mode
Displayed when the boiler’s schedule
programming operation is set.
f
DHW preheat
Displayed
when the DHW
preheat feature
is enabled.
Always On
Weekly
Intelligent
g
Central heating demand
Indicates the central heating
demand is present.
h
DHW demand
Indicates that DHW demand is
present.
i
Central heating set temperature
When the central heating
temperature is set: Displays the
currently set central heating
temperature.
When the central heating
temperature is not set: Displays the
current supply water temperature.
j
DHW set temperature
When the DHW temperature is set:
Displays the currently set DHW
temperature.
When the DHW temperature is not set:
Displays the current supply water
temperature when using the DHW
thermostat.
Displays the current DHW tank
temperature when using the DHW
sensor.
k
Outdoor temperature
Displays the outdoor temperature.
l
System pressure
Displays the internal water pressure of
the boiler system.
11.1 Using the Front Panel
The front panel allows you to adjust the temperature and view the operating status or error codes. Remove the protective film from the
front panel before using it.
b
a
d
f
c
g
i
k
h
j
l
e