Daikin EPRA18DAW1 Installer's Reference Manual page 159

EPRA14~18DAV3+W1 + ETVZ16S18+23DA6V+9W
Daikin Altherma 3 H HT F
4P587503-1A – 2020.01
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
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
4
curve" [ 121].
# Code
[5.C] [0-0E]
[0-0D]
[0-0C]
[0-0B]
Margin
In domestic hot water operation, the following hysteresis value can be set for the
heat pump operation:
# Code
[5.D] [6-01]
Example: setpoint (T )>maximum heat pump temperature–[6‑01] (T
U
BUH Backup heater
only or Schedule
WD curve:
T
DHW
[0-0C]
[0-0B]
[0-0E] [0-0D]
▪ T : The desired tank temperature.
DHW
▪ T : The (averaged)
a
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
The temperature difference determining the heat
pump OFF temperature.
Range: 0°C~10°C
9 Configuration
|
+ reheat domestic hot water
"9.4 Weather-dependent
Description
T
a
outdoor
Description
HP MAX
Installer reference guide
ambient
–[6‑01])
159