7 Configuration
Installation manual
32
EBBH/X11+16DF
Daikin Altherma 3 R W
4P643600-1B – 2021.10
NOTICE
Average emitter temperature = Leaving water
temperature – (Delta T)/2
This means that for a same leaving water temperature
setpoint, the average emitter temperature of radiators is
lower than that of underfloor heating because of a bigger
delta T.
Example radiators: 40–8/2=36°C
Example underfloor heating: 40–5/2=37.5°C
To compensate, you can:
▪ Increase the weather-dependent curve desired
temperatures [2.5].
▪ Enable leaving water temperature modulation and
increase the maximum modulation [2.C].
Control
Define how the operation of the unit is controlled.
Control In this control...
Leaving water Unit operation is decided based on the leaving
water temperature regardless the actual room
temperature and/or heating or cooling demand
of the room.
External room
thermostat
Unit operation is decided by the external
thermostat or equivalent (e.g. heat pump
convector).
Room thermostat Unit operation is decided based on the ambient
temperature of the dedicated Human Comfort
Interface (BRC1HHDA used as room
thermostat).
# Code Description
[2.9] [C‑07] ▪ 0: Leaving water
▪ 1: External room thermostat
▪ 2: Room thermostat
Setpoint mode
Define the setpoint mode:
▪ Fixed: the desired leaving water temperature does not depend on
the outdoor ambient temperature.
▪ In WD heating, fixed cooling mode, the desired leaving water
temperature:
▪ depends on the outdoor ambient temperature for heating
▪ does NOT depend on the outdoor ambient temperature for
cooling
▪ In Weather dependent mode, the desired leaving water
temperature depends on the outdoor ambient temperature.
# Code Description
[2.4] N/A Setpoint mode:
▪ Fixed
▪ WD heating, fixed cooling
▪ Weather dependent
When weather dependent operation is active, low outdoor
temperatures will result in warmer water and vice versa. During
weather dependent operation, the user can shift the water
temperature up or down by a maximum of 10°C.
Schedule
Indicates if the desired leaving water temperature is according to a
schedule. Influence of the LWT setpoint mode [2.4] is as follows:
▪ In Fixed LWT setpoint mode, the scheduled actions consist of
desired leaving water temperatures, either preset or custom.
▪ 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"[431].
# 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 "7.2.5Configuration wizard: Main zone"[431].
# 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"[431].
# Code Description
[3.4] N/A ▪ 0: Fixed
▪ 1: WD heating, fixed cooling
▪ 2: Weather dependent
If you choose WD heating, fixed cooling or Weather
dependent, the next screen will be the detailed screen with weather-
dependent curves. Also see "7.3Weather-dependent curve"[433].
Schedule
Indicates if the desired leaving water temperature is according to a
schedule. Also see "7.2.5Configuration wizard: Main zone"[431].
# Code Description
[3.1] N/A ▪ 0: No
▪ 1: Yes
7.2.7 Configuration wizard: Tank
This part only applies to systems with an optional domestic hot water
tank installed.
Heat up mode
The domestic hot water can be prepared in 3 different ways. They
differ from each other by the way the desired tank temperature is set
and how the unit acts upon it.
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