8 Configuration
Installer reference guide
58
ERGA04~08DAV3(A) + 08S18+23DA
Daikin Altherma – Low temperature split
4P495249-1 – 2017.12
#
Code
Description
[5.A]
[6-08]
Reheat hysteresis
▪ 2°C~20°C
Setpoint mode
#
Code
Description
[5.B]
N/A
Setpoint mode:
▪ Fixed
▪ Weather dependent
WD curve
When weather dependent operation is active the desired tank
temperature is determined automatically depending on the averaged
outdoor temperature: low outdoor temperatures will result in higher
desired tank temperatures as the cold water tap is colder and vice
versa.
In case of Schedule only or Schedule + reheat domestic hot water
preparation, the storage comfort temperature is weather dependent
(according to the weather dependent curve), the storage economic
and reheat temperature are NOT weather dependent.
In case of Reheat only domestic hot water preparation, the desired
tank temperature is weather dependent (according to the weather
dependent curve). During weather dependent operation, the end-
user cannot adjust the desired tank temperature on the user
interface. Also see
"8.3.7 Detailed screen with weather-dependent
#
Code
Description
[5.C]
[0-0E]
[0-0D]
[0-0C]
[0-0B]
Weather-dependent curve
T
DHW
T
a
[0-0C]
[0-0B]
[0-0E]
[0-0D]
▪ T
DHW
: The desired tank temperature.
▪ T
a
: The (averaged) outdoor ambient
temperature
▪ [0-0E]:
low
outdoor
ambient
temperature: -40°C‑5°C
▪ [0-0D]:
high
outdoor
ambient
temperature: 10°C‑25°C
▪ [0-0C]: desired tank temperature when
the outdoor temperature equals or
drops
below
the
low
ambient
temperature: 45°C~[6‑0E]°C
▪ [0-0B]: desired tank temperature when
the outdoor temperature equals or
rises
above
the
high
ambient
temperature: 35°C~[6‑0E]°C
Margin
In domestic hot water operation, the following hysteresis value can
be set for the heat pump operation:
#
Code
Description
[5.D]
[6-01]
The temperature difference determining
the heat pump OFF temperature.
Range: 0°C~10°C
Example: setpoint (T
U
)>maximum heat pump temperature–[6‑01]
(T
HP MAX
–[6‑01])
t
T
DHW
T
HP ON
T
HP OFF
T
HP MAX
T
U
=
T
BUH OFF
[6-01]
[6-00]
T
U
= 60°C
T
HP MAX
= 50°C
[6-01] = 2°C
[6-00] = 2°C
HP
BUH
HP
5
10
20
30
40
46
48
50
60
BUH
Backup heater
HP
Heat pump. If heating up time by the heat pump takes too
long, auxiliary heating by the backup heater can take place
T
BUH OFF
Backup heater OFF temperature (T
U
)
T
HP MAX
Maximum heat pump temperature at sensor in domestic
hot water tank
T
HP OFF
Heat pump OFF temperature (T
HP MAX
−[6-01])
T
HP ON
Heat pump ON temperature (T
HP OFF
−[6-00])
T
DHW
Domestic hot water temperature
T
U
User set point temperature (as set on the user interface)
t
Time
Example: setpoint (T
U
)≤maximum heat pump temperature–[6‑01]
(T
HP MAX
–[6‑01])
t
[6-00]
HP
5
10
20
30
40
43
45
T
U
=T
HP OFF
T
HP MAX
T
DHW
T
HP ON
50
HP
Heat pump. If heating up time by the heat pump takes too
long, auxiliary heating by the backup heater can take place
T
HP MAX
Maximum heat pump temperature at sensor in domestic
hot water tank
T
HP OFF
Heat pump OFF temperature (T
HP MAX
−[6-01])
T
HP ON
Heat pump ON temperature (T
HP OFF
−[6-00])
T
DHW
Domestic hot water temperature
T
U
User set point temperature (as set on the user interface)
t
Time
INFORMATION
The maximum heat pump temperature depends on the
ambient temperature. For more information, see the
operation range.
8.4.7
User settings
Language
#
Code
Description
[7.1]
N/A
Language
Time/date
#
Code
Description
[7.2]
N/A
Set the local time and date
