Daikin ERGA08DAV3 Installer's Reference Manual page 60

8 Configuration
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.
# 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 48.
Installer reference guide
60
Description
Description
Description
Description
# Code
[5.C] [0-0E] WD 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
Example: setpoint (T )>maximum heat pump temperature–[6‑01]
U
(T –[6‑01])
HP MAX
T
DHW
T = T
60
U BUH OFF
T
50
HP MAX
[6-01]
T
48
HP OFF [6-00]
46
T
HP ON
40
30
20
HP
10
5
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 Backup heater OFF temperature (T
BUH OFF
T Maximum heat pump temperature at sensor in domestic
HP MAX
hot water tank
T Heat pump OFF temperature (T
HP OFF
T Heat pump ON temperature (T
HP ON
T Domestic hot water temperature
DHW
T User set point temperature (as set on the user interface)
U
t Time
Example: setpoint (T )≤maximum heat pump temperature–[6‑01]
U
(T –[6‑01])
HP MAX
ERGA04~08DAV3(A) + EHVZ04+08S18+23DA +
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
T = 60°C
U
T = 50°C
HP MAX
BUH HP
[6-01] = 2°C
[6-00] = 2°C
)
U
−[6-01])
HP MAX
−[6-00])
HP OFF
EHVZ04+08S18+23DJ
Daikin Altherma 3 R F
4P495249-1B – 2019.06
t