2-Points Curve; Using Weather-Dependent Curves - Daikin Altherma 3 R F Installer's Reference Manual

9.3.2 2-points curve

9.3.3 Using weather-dependent curves

ERLA03DAV3 + EHFH03S18DJ3V
Daikin Altherma 3 R F
4P596806-1 – 2019.10
temperature of the leaving water or tank. Because it reacts more quickly, it
prevents high rises and drops of the indoor temperature and water temperature at
tap points.
Advantage
Weather-dependent operation reduces energy consumption.
Weather-dependent curve
To be able to compensate for differences in temperature, the unit relies on its
weather-dependent curve. This curve defines how much the temperature of the
tank or leaving water must be at different outdoor temperatures. Because the
slope of the curve depends on local circumstances such as climate and the
insulation of the house, the curve can be adjusted by an installer or user.
Availability
The weather-dependent curve is available for:
▪ Main zone - Heating
▪ Main zone - Cooling
▪ Additional zone - Heating
▪ Additional zone - Cooling
▪ Tank
INFORMATION
To operate weather dependent, correctly configure the setpoint of the main zone,
additional zone or tank. See
Define the weather-dependent curve with these two setpoints:
▪ Setpoint (X1, Y2)
▪ Setpoint (X2, Y1)
Example
Set weather-dependent heating
T
t
Y2
Y1
X1
Confirm
Adjust
X1, X2 Examples of outdoor ambient temperature
Y1, Y2 Examples of desired tank temperature or leaving water temperature
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 ...
Main zone – Heating/Cooling
"9.3.3 Using weather-dependent
X2 T
a
Scroll
Set the setpoint mode to ...
9 Configuration
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curves" [ 4 125].
Installer reference guide
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