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▪ during storage comfort, to prioritize the domestic hot water
preparation. When the tank temperature raises above this value,
domestic hot water preparation and space heating/cooling are
executed sequentially.
#
Code
[7.4.3.3]
[6-0C]
30°C~min(50, [6‑0E])°C (default: 45°C)
Reheat hysteresis
Only applicable when domestic hot water preparation is scheduled +
reheat.
#
Code
N/A
[6-08]
2°C~20°C (default: 10°C)
Weather dependent
The weather dependent installer settings define the parameters for
the weather dependent operation of the unit. 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 scheduled or scheduled+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.
#
Code
[A.4.6]
N/A
Weather dependent desired tank
temperature is:
▪ Fixed (default): disabled. All desired
tank temperature are NOT weather
dependent.
▪ Weather dep.: enabled. In scheduled
or
storage
weather dependent. Storage economic
and reheat temperatures are NOT
weather dependent. In reheat mode,
the
weather dependent.
Note:
temperature is weather dependent, it
cannot be adjusted on the user
interface.
ERHQ+ERLQ011~016 + EHVH/X11+16S18+26CB
Daikin Altherma – Low temperature split
4P384975-1C – 2018.02
Description
Description
Description
scheduled+reheat
mode,
the
comfort
temperature
desired
tank
temperature
When
the
displayed
tank
#
Code
[A.4.7]
[0-0E]
[0-0D]
[0-0C]
[0-0B]
Limits on heat pump operation
In domestic hot water operation, following hysteresis values can be
set for the heat pump operation:
#
Code
N/A
[6-00]
is
N/A
[6-01]
is
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
T
48
HP OFF
T
46
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
8 Configuration
Description
Weather-dependent curve
T
DHW
[0-0C]
[0-0B]
T
a
[0-0E]
[0-0D]
▪ T
: The desired tank temperature.
DHW
▪ T
: The (averaged) outdoor ambient
a
temperature
▪ [0-0E]:
low
outdoor
temperature:
−40°C~5°C
−10°C)
▪ [0-0D]:
high
outdoor
temperature:
10°C~25°C
15°C)
▪ [0-0C]: desired tank temperature when
the outdoor temperature equals or
drops
below
the
low
temperature: 45°C~[6‑0E]°C (default:
60°C)
▪ [0-0B]: desired tank temperature when
the outdoor temperature equals or
rises
above
the
high
temperature: 35°C~[6‑0E]°C (default:
55°C)
Description
The temperature difference determining
the heat pump ON temperature.
Range: 2°C~20°C (default: 2°C)
The temperature difference determining
the heat pump OFF temperature.
Range: 0°C~10°C (default: 2°C)
[6-01]
[6-00]
T
= 60°C
U
T
= 50°C
HP MAX
HP
BUH
[6-01] =
2°C
[6-00] =
2°C
)
U
−[6-01])
HP MAX
Installer reference guide
ambient
(default:
ambient
(default:
ambient
ambient
t
63
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