Domestic Hot Water - Daikin Altherma 3 GEO Series User Reference Manual

2.3

Domestic hot water

To turn tank heating operation ON or OFF
1 Go to [C.3]: Operation > Tank.
C.3
Operation
Space heating/cooling On
Tank Off
2 Set operation to On or Off.
To change the tank temperature setpoint
In Reheat only mode, you can use the tank temperature setpoint
screen to read out and adjust the domestic hot water temperature.
1 Go to [5]: Tank.
5
Tank
2 Adjust the domestic hot water temperature.
a b
5
50
°C
Tank
a Actual domestic hot water temperature
b Desired domestic hot water temperature
In other modes, you can only view the setpoint screen but not modify
it. Instead, you can modify the settings for the Comfort setpoint
[5.2], Eco setpoint [5.3] and Reheat setpoint [5.4].
To change the weather-dependent curve for the tank
1 Go to [5.C] Tank > WD curve.
2 Change the weather-dependent curve.
There are 2 types of WD curves: slope-offset curve (default),
and 2-points curve. If needed, you can change the type in
[2.E] Main zone > WD curve type. The way to adjust the
curve depends on the type.
Slope-offset curve
Slope. When slope is changed,
the new preferred temperature at
X1 is unequally higher than the
preferred temperature at X2.
a b
c
d
Y4
Y3
Y2
Y1
X1 X2
X1, X2 Outdoor ambient temperature
Y1~Y4 Desired tank temperature
a WD curve before changes
b WD curve after changes
c Slope
d Offset
EGSAH/X06+10DA9W(G)
Daikin Altherma 3 GEO
4P569819-1 – 2019.02
+
–
Offset. When offset is changed,
the new preferred temperature at
X1 is equally higher as the
preferred temperature at X2.
a b
c
d
Y4
Y3
Y2
Y1
X1 X2
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.
2-points curve
Y2
Y1
X1 X2
X1, X2 Outdoor ambient temperature
Y1, Y2 Desired tank temperature
Possible actions on this screen
Go through the temperatures.
Change the temperature.
Go to the next temperature.
Confirm changes and proceed.
More information
For more information, see also:
▪ "4.4 Turning operation ON or OFF" on page 14
▪ "4.7 Domestic hot water control" on page 18
▪ "4.9 Weather-dependent curve" on page 24
▪ "4.8 Preset values and schedules" on page 20
2 Quick actions
User reference guide
5