Detailed Screen With Weather-Dependent Curve - Daikin Altherma 3 GEO Installation Manual

# Code
[3.1] N/A ▪ 0: No
▪ 1: Yes
6.2.7 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.
WD curve type
# Code
▪ 0: 2-points
[2.E] N/A
▪ 1: Slope-Offset
Slope-offset WD curve
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, when 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, when 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.
Slope-offset WD curve: example screens
Weather-dependent curve when slope is selected:
a b
Y4
Y3
Y2
Y1
X1 X2
Weather-dependent curve when offset is selected:
a b
Y4
Y3
Y2
Y1
X1
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.
EGSAH/X06+10DA9W(G)
Daikin Altherma 3 GEO
4P569811-1 – 2019.02
Description
Description
water for different ambient
water for different ambient
c
e
d
c
e
d
X2
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 Possible weather-dependent zones:
▪ : Main zone or additional zone heating
▪ : Main zone or additional zone cooling
▪ : Domestic hot water
X1, X2 Outdoor ambient temperature
Y1, Y2, Desired tank temperature or leaving water temperature.
Y3, Y4 The symbol shown here corresponds to the heat emitter
for that zone:
▪ : Underfloor heating
▪ : Fan coil unit
▪ : Radiator
▪ : Domestic hot water tank
2-points WD curve
The weather-dependent curve is defined by two setpoints:
▪ Setpoint (X1, Y2)
▪ Setpoint (X2, Y1)
Weather-dependent curve:
Y2
Y1
X1 X2
Possible actions on this screen
Go through the temperatures.
Change the temperature.
Go to the next temperature.
Confirm changes and proceed.
6 Configuration
Description
changed, the new preferred
changed, the new preferred
a
Installation manual
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