Daikin EBSX-D - Configuration Wizard: Additional Zone; Configuration Wizard: Tank; Weather-Dependent Curve; What Is a Weather-Dependent Curve

7 Configuration
Installation manual
38
EBSH/X(B)11+16P50D
Daikin Altherma 3 R ECH₂O
4P759878-1 – 2024.01
▪ In Weather dependent LWT setpoint mode, the scheduled
actions consist of desired shift actions, either preset or custom.
# Code Description
[2.1] N/A ▪ 0: No
▪ 1: Yes
7.2.6 Configuration wizard: Additional zone
The most important settings for the additional leaving water zone
can be set here.
Emitter type
For more info about this functionality, see "7.2.5 Configuration
wizard: Main zone"[437].
# Code Description
[3.7] [2‑0D] ▪ 0: Underfloor heating
▪ 1: Fancoil unit
▪ 2: Radiator
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 "7.2.5Configuration wizard: Main zone"[437].
# Code Description
[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 "7.2.5 Configuration
wizard: Main zone"[437].
# Code Description
[3.4] N/A ▪ 0: Fixed
▪ 1: WD heating, fixed cooling
▪ 2: Weather dependent
Schedule
Indicates if the desired leaving water temperature is according to a
schedule. Also see "7.2.5Configuration wizard: Main zone"[437].
# Code Description
[3.1] N/A ▪ 0: No
▪ 1: Yes
7.2.7 Configuration wizard: Tank
INFORMATION
To make tank defrost possible, we recommend a minimum
tank temperature of 35°C.
Heat up mode
The domestic hot water can be prepared in 2 different ways. They
differ from each other by the way the desired tank temperature is set
and how the unit acts upon it.
# Code Description
[5.6] [6-0D] Heat up mode:
▪ 0: Reheat only: The storage tank
temperature is always kept at the
setpoint selected in the tank setpoint
screen.
▪ 3: Scheduled reheat: The storage
tank temperature varies according to
the tank temperature schedule.
See the operation manual for more details.
Settings for Reheat only mode
During Reheat only mode, the tank setpoint can be set on the user
interface. The maximum allowed temperature is determined by the
following setting:
To set the heat pump ON hysteresis:
Settings for Schedule only mode and Schedule + reheat mode
7.3 Weather-dependent curve
7.3.1 What is a weather-dependent curve?
Weather-dependent operation
The unit operates 'weather-dependent' if the desired leaving water or
tank temperature is determined automatically by the outdoor
temperature. It therefore is connected to a temperature sensor on
the North wall of the building. If the outdoor temperature drops or
rises, the unit compensates instantly. Thus, the unit does not have to
wait for feedback by the thermostat to increase or decrease the
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
building, the curve can be adjusted by an installer or user.
Types of weather-dependent curve
There are 2 types of weather-dependent curves:
▪ 2-points curve
▪ Slope-offset curve
Which type of curve you use to make adjustments, depends on your
personal preference. See "7.3.4 Using weather-dependent
curves"[439].
Availability
The weather-dependent curve is available for:
▪ Main zone - Heating
▪ Main zone - Cooling
▪ Additional zone - Heating
▪ Additional zone - Cooling
▪ Tank (only available to installers)
INFORMATION
To operate weather-dependent, correctly configure the
setpoint of the main zone, additional zone or tank. See
"7.3.4Using weather-dependent curves"[439].