Detailed Screen With Weather-Dependent Curve - Daikin Altherma EHBH08DA6V7 Installation Manual

5 Configuration
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
# Code
[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
zone" [ 4 17].
wizard: Main
# Code
[3.4] N/A ▪ 0: Fixed
▪ 1: WD heating, fixed cooling
▪ 2: Weather dependent
If you choose WD heating,
dependent, the next screen will be the detailed screen with weather-
dependent curves. Also see "5.2.7 Detailed screen with weather-
curve" [ 4 18].
dependent
Schedule
Indicates if the desired leaving water temperature is according to a
schedule. Also see "5.2.5 Configuration wizard: Main
# Code
[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
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
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:
Installation manual
18
zone" [ 4 17].
Description
"5.2.5 Configuration
Description
fixed cooling or Weather
zone" [ 4 17].
Description
water for different ambient
water for different ambient
a b
Y4
Y3
Y2
Y1
X1 X2
Weather-dependent curve when offset is selected:
a b
Y4
Y3
Y2
Y1
X1
Item
a WD curve before changes.
b WD curve after changes (as example):
▪ When slope is
temperature at X1 is unequally higher than the
preferred temperature at X2.
▪ When offset is
temperature at X1 is equally higher as the preferred
temperature at X2.
c Slope
d Offset
e Selected weather dependent zone:
▪ : Main zone or additional zone heating
▪ : Main zone or additional zone cooling
▪ : Domestic hot water
X1, X2 Examples of outdoor ambient temperature
Y1, Y2, Examples of desired tank temperature or leaving water
Y3, Y4 temperature. The icon corresponds to the heat emitter
for that zone:
▪ : Underfloor heating
▪ : Fan coil unit
▪ : Radiator
▪ : Domestic hot water tank
Possible actions on this screen
Select slope or offset.
Increase or decrease the slope/offset.
When slope is selected: set slope and go to offset.
When offset is selected: set offset.
Confirm changes and return to the submenu.
Item
a WD curve before changes.
c
e
d
c
e
d
X2
Description
changed, the new preferred
changed, the new preferred
Description
EHBH/X04+08DA*V7
Daikin Altherma 3 R W
4P618951-1 – 2020.03