5 Configuration
Installation manual
20
08S18+23DA + 08S18+23DJ
Daikin Altherma 3 R F
4P584429-1 – 2019.06
NOTICE
For radiators, the average emitter temperature will be
lower compared to underfloor heating, due to the fixed
delta T of 10°C. To compensate, you can:
▪ Increase the weather dependent curve desired
temperatures [2.5].
▪ Enable leaving water temperature modulation and
increase the maximum modulation [2.C].
Control
Defines how the operation of the unit is controlled. There are 3
possibilities:
Control
In this control...
Leaving water
Unit operation is decided based on the leaving
water temperature regardless the actual room
temperature and/or heating demand of the
room.
External room
thermostat
Unit operation is decided by the external
thermostat or equivalent (e.g. heat pump
convector).
Room thermostat
Unit operation is decided based on the ambient
temperature of the user interface used as a
room thermostat.
#
Code
Description
[2.9]
[C‑07]
▪ 0:
Leaving water
▪ 1:
External room thermostat
▪ 2:
Room thermostat
Setpoint mode
In
Fixed
mode, the desired leaving water temperature does NOT
depend on the outdoor ambient temperature.
In
Weather
dependent
mode, the desired leaving water
temperature depends on the outdoor ambient temperature.
#
Code
Description
[2.4]
N/A
Setpoint mode
▪ 0:
Fixed
▪ 2:
Weather dependent
When weather dependent operation is active, low outdoor
temperatures will result in warmer water and vice versa. During
weather dependent operation, the user has the possibility to shift the
water temperature up or down by a maximum of 10°C.
Schedule
Indicates if the desired leaving water temperature is according to a
schedule. Influence of the LWT setpoint mode [2.4] is as follows:
▪ In
Fixed
LWT setpoint mode, the scheduled actions consist of
desired leaving water temperatures, either preset or custom.
▪ In
Weather dependent
LWT setpoint mode, the scheduled
actions consist of desired shift actions, either preset or custom.
#
Code
Description
[2.1]
N/A
▪ 0:
No
▪ 1:
Yes
5.2.6
Configuration wizard: Additional zone
The most important settings for the additional leaving water zone
can be set here.
Emitter type
For more info about this functionality, see
.
#
Code
Description
[3.7]
[2‑0D]
▪ 0:
Underfloor heating
▪ 1:
Fancoil unit
▪ 2:
Radiator
Control
The control type is displayed here, but cannot be adjusted. It is
determined by the control type of the main zone. For more info about
the functionality, see
"5.2.5 Configuration wizard: Main zone" on
.
#
Code
Description
[3.9]
N/A
▪ 0:
Leaving water
if the control type
of the main zone is
Leaving water
.
▪ 1:
External room thermostat
if the
control type of the main zone is
External room thermostat
or
Room
thermostat
.
Setpoint mode
For more info about this functionality, see
.
#
Code
Description
[3.4]
N/A
▪ 0:
Fixed
▪ 2:
Weather dependent
If you choose
Weather dependent
, the next screen will be the
detailed screen with weather-dependent curves. Also see
"5.2.7 Detailed screen with weather-dependent curve" on page 20
.
Schedule
Indicates if the desired leaving water temperature is according to a
schedule. Also see
"5.2.5 Configuration wizard: Main zone" on
.
#
Code
Description
[3.1]
N/A
▪ 0:
No
▪ 1:
Yes
5.2.7
Detailed screen with weather-dependent
curve
When weather-dependent (WD) operation is active the desired
leaving water or tank temperature is determined automatically
depending on the averaged outdoor temperature. When the outdoor
temperature is lower the leaving water or tank temperature will need
to be higher as the water pipes will be colder and vice versa.
2-points WD curve
The weather-dependent curve is defined by two setpoints:
▪ Setpoint (X1, Y2)
▪ Setpoint (X2, Y1)
Weather-dependent curve:
Y1
Y2
X1
X2
a
