Daikin ALTHERMA, Installer'S Reference Manual

Page: 171 / 280

11 | Configuration
Installer reference guide
171
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
4P620241-1 – 2020.06
room temperature, the installer sets a hysteresis value (e.g. when in heating, this
value is related to the desired cooling temperature) and an offset value (e.g. when
in heating, this value is related to the desired heating temperature).
Example: A unit is configured as following:
▪ Desired room temperature in heating mode: 22°C
▪ Desired room temperature in cooling mode: 24°C
▪ Hysteresis value: 1°C
▪ Offset: 4°C
Changeover from heating to cooling will occur when the room temperature rises
above the maximum of the desired cooling temperature added by the hysteresis
value (thus 24+1=25°C) and the desired heating temperature added by the offset
value (thus 22+4=26°C).
Oppositely, changeover from cooling to heating will occur when the room
temperature drops below the minimum of the desired heating temperature
subtracted by the hysteresis value (thus 22–1=21°C) and the desired cooling
temperature subtracted by the offset value (thus 24–4=20°C)
Guard timer to prevent too frequent changing from heating to cooling and vice
versa.
# Code Description
Changeover settings related to the indoor temperature.
Only applicable when Automatic is selected and the system is configured in
room thermostat control with 1 leaving water temperature zone and quick heat
emitters.
N/A [4-0B] Hysteresis: ensures that changeover is only done
when necessary.
The space operation only changes from heating
to cooling when the room temperature rises
above the desired cooling temperature added by
the hysteresis value.
▪ Range: 1°C~10°C
N/A [4-0D] Offset: ensures that the active desired room
temperature is always reached.
In heating mode, the space operation only
changes when the room temperature rises above
the desired heating temperature added by the
offset value.
▪ Range: 1°C~10°C
Number of zones
The system can supply leaving water to up to 2 water temperature zones. During
configuration, the number of water zones must be set.
INFORMATION
Mixing station. If your system layout contains 2 LWT zones, you need to install a
mixing station in front of the main LWT zone.