Daikin Altherma EPGA16DAV3 Installer's Reference Manual page 54

8 Configuration
INFORMATION
In case of error code AH and no interruption of the
disinfection function occurred due to domestic hot water
tapping, following actions are recommended:
▪ When the Domestic hot water > Type > Reheat or
Reheat + sched. is selected, it is recommended to
program the start-up of the disinfection function at least
4 hours later than the last expected large hot water
tapping. This start-up can be set by installer settings
(disinfection function).
▪ When the Domestic hot water > Type > Scheduled only
is selected, it is recommended to program a Storage
eco 3 hours before the scheduled start-up of the
disinfection function to preheat the tank.
INFORMATION
Disinfection function is restarted in case the domestic hot
water temperature drops 5°C below the disinfection target
temperature within the duration time.
INFORMATION
An AH error occurs if you turn off domestic hot water
operation during disinfection.
Maximum DHW temperature setpoint
The maximum temperature that users can select for the domestic
hot water. You can use this setting to limit the temperatures at the
hot water taps.
INFORMATION
During disinfection of the domestic hot water tank, the
DHW temperature can exceed this maximum temperature.
INFORMATION
Limit the maximum hot water temperature according to the
applicable legislation.
# Code
[5.8] [6-0E] Maximum
The maximum temperature that users
can select for the domestic hot water.
You can use this setting to limit the
temperature at the hot water taps.
The maximum temperature is NOT
applicable during disinfection function.
See disinfection function.
Hysteresis
The following ON hysteresis can be set.
Heat pump ON hysteresis
Applicable when domestic hot water preparation is reheat only.
When the tank temperature drops below the reheat temperature
minus the heat pump ON hysteresis temperature, the tank heats up
to the reheat temperature.
The minimum ON temperature is 20°C, even if setpoint hysteresis is
smaller than 20°C.
# Code
[5.9] [6-00] Heat pump ON hysteresis
▪ 2°C~40°C
Reheat hysteresis
Applicable when domestic hot water preparation is scheduled
+reheat. When the tank temperature drops below the reheat
temperature minus the reheat hysteresis temperature, the tank heats
up to the reheat temperature.
Installer reference guide
54
Description
Description
# Code
[5.A] [6-08] Reheat hysteresis
▪ 2°C~20°C
Setpoint mode
# Code
[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
curve" on page 40.
# Code
[5.C] [0-0E] Weather-dependent curve
T
[0-0D]
[0-0C]
[0-0C]
[0-0B]
[0-0B]
▪ T
DHW
▪ T : The (averaged) outdoor ambient
a
temperature
▪ [0-0E]:
temperature: -40°C‑5°C
▪ [0-0D]:
temperature: 10°C‑25°C
▪ [0-0C]: desired tank temperature when
the outdoor temperature equals or
drops
temperature: 45°C~[6‑0E]°C
▪ [0-0B]: desired tank temperature when
the outdoor temperature equals or
rises
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
[5.D] [6-01] The temperature difference determining
the heat pump OFF temperature.
Range: 0°C~10°C
EPGA11~16DAV3 + EAVZ16S18+23DA6V+9W
Description
Description
Description
DHW
T
a
[0-0E] [0-0D]
: The desired tank temperature.
low outdoor ambient
high outdoor ambient
below the low ambient
above the high ambient
Description
Daikin Altherma – Low temperature split
4P556075-1 – 2019.02