Daikin EHVH08SU23DA6V7 [20/36] Configuration
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Daikin EHVH08SU23DA6V7 [20/36] Configuration

Daikin EHVH08SU23DA6V7 [20/36] Configuration
5 Configuration
Installation manual
20
EHVH04+08SU18+23DA6V7
Daikin Altherma 3 R F
4P619456-1 – 2020.03
# Code Description
[2.4] N/A Setpoint mode:
▪ Fixed
▪ WD heating, fixed cooling
▪ 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 can 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 "5.2.5 Configuration
wizard: Main zone"[419].
# 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"[419].
# 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 "5.2.5 Configuration
wizard: Main zone"[419].
# Code Description
[3.4] N/A ▪ 0: Fixed
▪ 1: WD heating, fixed cooling
▪ 2: Weather dependent
If you choose WD heating, fixed cooling or 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"[420].
Schedule
Indicates if the desired leaving water temperature is according to a
schedule. Also see "5.2.5Configuration wizard: Main zone"[419].
# 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.
Slope and offset
Define the weather-dependent curve by its slope and offset:
▪ Change the slope to differently increase or decrease the
temperature of the leaving water for different ambient
temperatures. For example, if leaving water temperature is in
general fine but at low ambient temperatures too cold, raise the
slope so that leaving water temperature is heated increasingly
more at decreasingly lower ambient temperatures.
▪ Change the offset to equally increase or decrease the
temperature of the leaving water for different ambient
temperatures. For example, if leaving water temperature is always
a bit too cold at different ambient temperatures, shift the offset up
to equally increase the leaving water temperature for all ambient
temperatures.
Examples
Weather-dependent curve when slope is selected:
X1 X2
c
d
e
Y1
Y2
Y3
Y4
a b
Weather-dependent curve when offset is selected:
Y1
Y2
Y3
Y4
X1 X2
a b
c
d
e
Item Description
a WD curve before changes.
b WD curve after changes (as example):
▪ When slope is changed, the new preferred
temperature at X1 is unequally higher than the
preferred temperature at X2.
▪ When offset is changed, the new preferred
temperature at X1 is equally higher as the preferred
temperature at X2.
c Slope
d Offset

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