D2CND0 D2CND0 D2TND0
D2TND0 D2TND024A4AA
Wall-mounted condensing boiler
ESIE17-09 / 2017.11
Servicing manual
27
7.2
Operating The Appliance
Switching ON
Connect the appliance to the main power supply.
Press the “Mode” button for 5 seconds to switch ON the appli
-
ance. After that, you can select an operation mode by press
-
ing the Mode button shortly.
Use of the appliance is explained in following parts of this
manual.
7.2.1
Low Water Temperature Function
Low water temperature function is a safety function that takes
place at first central heating operation after each power supply
interruption and at first central heating operation after each 90
days. When this function is active, boiler operates according
to a defined set value for around 15 minutes and the icon
blinks. After this function is ended, normal operation goes
on (for details of the function refer to page 36).
7.2.2
Electronic Gas Adaptive System Calibration
Electronic gas adaptive system calibrates itself in pre-deter
-
mined time intervals. First calibration takes place just after first
burner activation after each power ON. Calibration process
duration is around 60 seconds. After calibration is ended, boil
-
er modulates to required capacity. Calibration process has no
any effect to boiler operation.
7.3
Basic use
7.3.1
Home Screen
It is the screen that is displayed after activating the LCD sc
-
reen with one of the dials or buttons. You can use the home
screen to read out settings that are meant for daily use. What
you can see on the home screen depends on your system
configuration.
The following home screens may be possible;
•
Room temperature (Daikin room thermostat connected)
•
Central Heating set temperature
•
Virtual room temperature (with Outdoor Sensor)
•
Domestic hot water set temperature
•
System Pressure (at stand-by mode)
7.3.2
Selecting Operation Mode
The operation mode can be changed by pushing the “Mode”
button.
7.4
Description of the Operation Modes
7.4.1
Stand-by Mode
In stand-by mode both central heating and domestic hot water
operation modes are disabled. The protection functions such
as frost protection are still active at standby mode. The home
-
screen shows the system pressure, as well as the icon.
7.4.2
Summer Mode
In Summer mode, only domestic hot water operation mode
is enabled. Central heating operation mode is disabled. The
boiler will only produce heat for domestic hot water.
The domestic hot water setpoint, and the icon is shown
on the home screen.
The icon blinks if domestic hot water operation is active.
7.4.3
Winter Mode
In Winter mode, domestic hot water operation mode and cen
-
tral heating operation mode are both enabled. The boiler can
produce domestic hot water, as well as produce heat for cen
-
tral heating.
The central heating temperature setpoint, and the icon,
as well as the icon are shown on the home screen. When
domestic hot water operation is active, Domestic hot water
setpoint is shown on the homescreen.
The icon blinks if domestic hot water operation is active.
The icon blinks if central heating operation is active.
7.4.4
Central Heating Only Mode
In this mode, only central heating operation mode is enabled.
The central heating temperature setpoint and the icon is
shown on the home screen.
The icon blinks if central heating operation is active.
7.4.5
Full Off Mode
In this mode both central heating and domestic hot water op
-
eration modes are disabled. In addition, LCD display will be
darkened and will not be activated with any user interaction.
The protection functions such as frost protection are still ac
-
tive at Full off mode. Full off mode is activated and deactivated
if mode button is pressed for 5 seconds while boiler is in any
mode.
7 Operation
(5 s)
(5 s)
a
c
b
d
e
a Central heating only mode
b Standby mode
c Summer mode
d Winter mode
e Full-off mode
