About The Electronic Gas Adaptive System Calibration; Basic Usage; About The Home Screen; To Select The Operation Mode - Daikin D2CND024A1AB Operation Manual

When this function is active, boiler operates according to a defined
set value for around 15 minutes and the
function is ended, normal operation goes on.
INFORMATION
Low water temperature function is a safety function and it
cannot be disabled.
3.2.3 About the electronic gas adaptive system
calibration
The electronic gas adaptive system calibrates itself in pre-
determined intervals. First calibration takes place just after first
burner activation after each power ON. Calibration process duration
is around 60 seconds and the
ended, boiler modulates to required capacity. Calibration process
has no effect on boiler operation.
Calibration can also take place in summer mode without water
tapping if proper conditions are met. In other words, boiler may
operate itself for a short duration in summer mode even though there
is no domestic hot water demand. This is an expected behavior.
3.3

Basic usage

3.3.1

About the home screen

It is the screen that is displayed after activating the LCD screen 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 standby mode)
3.3.2

To select the operation mode

The operation mode can be changed by pressing the "Mode" button
( ).
(5 s)
e a
(5 s)
a Central heating only mode
b Standby mode
c Summer mode
d Winter mode
e Full-off mode
D2CND024A1/4AB + D2TND012~024A4AB
Wall-mounted condensing boiler
3P469438-3M – 2019.11
icon blinks. After this
icon blinks. After calibration is
b
c
d
3.3.3

Possible operation modes

Operation mode
Central heating only mode ▪ Only central heating operation mode
▪ The central heating temperature
▪ The
Standby mode ▪ Both central heating and domestic
▪ The protection functions such as
▪ The home screen shows the system
Summer mode ▪ Only domestic hot water operation
▪ The domestic hot water setpoint,
▪ The
Winter mode ▪ Both domestic hot water operation
▪ The central heating temperature
▪ The
▪ The
Full-off mode ▪ Both central heating and domestic
▪ LCD display will be darkened and
▪ The protection functions such as
▪ Full-off
3 Operation
Description
is enabled.
setpoint (which setpoint is shown
depends on the system
configuration; see "3.3.5 Possible
central heating operation
modes" [ 4 6]) and the
icon is
shown on the home screen.
icon blinks if central heating
operation is active.
hot water operation modes are
disabled.
frost protection are still active at
standby mode.
pressure, as well as the icon.
mode is enabled. Central heating
operation mode is disabled. The
boiler will only produce heat for
domestic hot water.
and the icon is shown on the
home screen.
icon blinks if domestic hot
water operation is active.
mode and central heating operation
mode are enabled. The boiler can
produce domestic hot water, as well
as produce heat for central heating.
setpoint (which setpoint is shown
depends on the system
configuration; see "3.3.5 Possible
central heating operation
modes" [ 4 6]), 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
home screen.
icon blinks if domestic hot
water operation is active.
icon blinks if central heating
operation is active.
hot water operation modes are
disabled.
will not be activated with any user
interaction.
frost protection are still active at full-
off mode.
mode is activated
deactivated if "Mode" button is
pressed for 5 seconds while boiler is
in any mode.
Operation manual
and
5