3 Operation
Operation manual
6
D2C18ND0 D2HND012/18A5AA
Wall-mounted condensing boiler
3P469438-9H – 2018.05
To change the domestic hot water setpoint
1
Turn the right dial while you are at the home screen. The
setpoint screen will appear as shown below and the setpoint
can be adjusted by turning the right dial.
Note:
The icon
means you are at the setpoint screen.
2
To apply changes done, wait for 3 seconds or press the "Enter"
button. Pressing the "Cancel" button cancels the changes done.
NOTICE
To be able to change the setpoint of central heating or
domestic hot water, the corresponding operation mode
must be enabled. If it is not, the related dial has no
function.
3.3.5
Possible central heating operation modes
Mode
Description
Boiler only
The case that the system only
contains the boiler. No room
thermostat or outdoor sensor are
connected. The central heating water
temperature setpoint is displayed. The
setpoint can be adjusted with the left
dial.
The icon is shown on the screen
when the central heating operation
mode is enabled.
Combination with Daikin
room thermostat (DOTT )
The case that Daikin room thermostat
is connected to the boiler. Actual room
temperature is displayed. The room
temperature setpoint can be adjusted
from the user interface by means of
the left dial or from the Daikin room
thermostat.
The icon is shown on the screen
instead of the icon when central
heating operation mode is enabled.
Mode
Description
outdoor sensor
(Weather compensation)
The case that outdoor sensor is
connected to the boiler. In this case,
the central heating water temperature
is regulated according to the outdoor
temperature. The virtual room
temperature setpoint is diplayed. The
virtual room temperature setpoint can
be adjusted by means of left dial.
Increasing or decreasing the setpoint
value reflects to the central heating
water temperature and the room
temperature, respectively.
The and icons are shown on the
screen when central heating operation
mode is enabled.
NOTICE
To enable weather compensation, the heating slope value
must be higher than "0" (see
).
INFORMATION
If an outdoor sensor is connected to the boiler together
with Daikin room thermostat, the rules of the case
"Combination with Daikin room thermostat" are applicable.
The outdoor sensor only provides outdoor temperature
data to the room thermostat for water temperature
calculation.
3.3.6
About the central heating ECO mode
The central heating ECO mode provides more economic central
heating. Main purpose of the ECO mode is to operate the boiler at
the condensing temperature range so to increase the efficiency.
ECO mode can be activated at any central heating operation mode
explained above.
ECO mode can be enabled from the user settings menu (see
settings menu: Parameters (short)" on page 8
).
INFORMATION
ECO mode is only for central heating, it has no effect to
domestic water heating.
When central heating ECO mode is enabled, icon is shown on the
screen while the central heating operation mode is enabled.
NOTICE
In case of bad or inappropriate central heating circuit
design, which causes inadequate heat emission to the
living space, activating the ECO mode may cause capacity
shortage.
3.3.7
About the domestic hot water operation
This unit supplies domestic hot water by way of a plate heat
exchanger (instantaneous) or by way of a hot water storage tank
according to model of the boiler.
If the boiler is instantaneous type, domestic hot water operation is
activated when water is being tapped. Water flow rate must be at
least 2.5 l/min.
If it is storage tank type, domestic hot water operation is activated
according to storage tank temperature value.
The icon blinks when domestic hot water operation is active.
