Daikin Altherma EHFH-D3V - 2-Points Curve; Using Weather-Dependent Curves

7 Configuration
Installation manual
23
EHFH03S18D
Daikin Altherma 3 R F
4P596803-1D – 2022.08
INFORMATION
To operate weather-dependent, correctly configure the
setpoint of the main zone, additional zone or tank. See
"7.3.3Using weather-dependent curves"[423].
7.3.2 2-points curve
Define the weather-dependent curve with these 2 setpoints:
▪ Setpoint (X1, Y2)
▪ Setpoint (X2, Y1)
Example
Set weather-dependent heating
Confirm
Adjust
Scroll
T
t
T
a
X1
Y1
Y2
X2
X1, X2 Examples of outdoor ambient temperature
Y1, Y2 Examples of desired tank temperature or leaving water
temperature
7.3.3 Using weather-dependent curves
Configure weather-dependent curves as following:
To define the setpoint mode
To use the weather-dependent curve, you need to define the correct
setpoint mode:
Go to setpoint mode … Set the setpoint mode to …
Main zone – Heating/Cooling
[A.3.1.1.1] Main > LWT setpoint
mode
Weather dep. OR WD/
scheduled
Additional zone – Heating/Cooling
[A.3.1.2.1] Additional > LWT
setpoint mode
Weather dep. OR WD/
scheduled
Tank
[A.4.6] Domestic hot water
(DHW) > SP mode
Weather dep.
To change the weather-dependent curve
Zone Go to …
Main zone – Heating [7.7.1.1]Main > Set weather-
dependent heating
Main zone – Cooling [7.7.1.2] Main > Set weather-
dependent cooling
Additional zone – Heating [7.7.2.1]Additional > Set
weather-dependent heating
Additional zone – Cooling [7.7.2.2] Additional > Set
weather-dependent cooling
Tank [A.4.7] Domestic hot water
(DHW) > Weather-dependent
curve
INFORMATION
Maximum and minimum setpoints
You cannot configure the curve with temperatures that are
higher or lower than the set maximum and minimum
setpoints for that zone or for the tank. When the maximum
or minimum setpoint is reached, the curve flattens out.
To fine-tune the weather-dependent curve
The following table describes how to fine-tune the weather-
dependent curve of a zone or tank:
You feel … Fine-tune with
setpoints:
At regular outdoor
temperatures …
At cold outdoor
temperatures …
Y2
(a)
Y1
(a)
X1
(a)
X2
(a)
OK Cold ↑ — ↑ —
OK Hot ↓ — ↓ —
Cold OK — ↑ — ↑
Cold Cold ↑ ↑ ↑ ↑
Cold Hot ↓ ↑ ↓ ↑
Hot OK — ↓ — ↓
Hot Cold ↑ ↓ ↑ ↓
Hot Hot ↓ ↓ ↓ ↓
(a)
See "7.3.22-points curve"[423].