EHBH/X16
Daikin Altherma - Low Temperature Split
4P313776-1 – 2012.05
Installer reference guide
42
8 Configuration
Leaving water temperature compensation around 0°C
In heating operation, the desired leaving water temperature is locally
increased around an outdoor temperature of 0°C. This compensation
can be selected when using an absolute or a weather dependent
desired temperature, this compensation can be selected (see
illustration below). Use this setting to compensate for possible heat
losses of the building when the outdoor temperature is around 0°C
(e.g. in cold region countries).
Leaving water temperature maximum modulation
Only applicable in room thermostat control and when modulation is
enabled. The maximum modulation (=variance) on the desired
leaving water temperature decided on the difference between the
actual and desired room temperature, e.g. 3°C modulation means the
desired leaving water temperature can be increased or lowered by
3°C. Increasing the modulation results in better performance (less
On/OFF, faster heat up), but note that depending on the heat emitter,
there must always be a balance (refer to the design and selection of
the heat emitters) between the desired leaving water temperature
and the desired room temperature.
Weather dependent cooling allowance
Only applicable for EHBX and EHVX. It is possible to disable weather
dependent cooling, meaning the desired leaving water temperature in
cooling operation doesn’t depend on the outdoor ambient
temperature and this regardless whether weather dependent is
selected or NOT. Both for the main leaving water temperature zone
as for the additional leaving water temperature zone, this can be set
separately.
Temperature ranges (room temperature)
Only applicable in room thermostat control. In order to save energy
by preventing overheating or undercooling the room, you can limit the
range of the room temperature, both for heating and/or cooling.
Room temperature step
Only applicable in room thermostat control and when the temperature
is displayed in °C.
Room temperature hysteresis
Only applicable in case of room thermostat control. The hysteresis
band around the desired room temperature is settable. Daikin
advises NOT to change the room temperature hysteresis as it is set
for an optimal use of the system.
Room temperature offset
Only applicable in case of room thermostat control. You can calibrate
the (external) room temperature sensor. It is possible to give an offset
to the room thermistor value measured by the user interface or by the
external room sensor. The settings can be used to compensate for
situations where the user interface or external room sensor cannot be
installed on the ideal installation location (see installation manual
and/or installer reference guide).
#
Code
Description
N/A
[D-03]
0 (disabled) (default)
1 (enabled) L=2°C, R=4°C
(–2°C<T
A
<2°C)
2 (enabled) L=4°C, R=4°C
(–2°C<T
A
<2°C)
3 (enabled) L=2°C, R=8°C
(–4°C<T
A
<4°C)
4 (enabled) L=4°C, R=8°C
(–4°C<T
A
<4°C)
#
Code
Description
N/A
[8-06]
1~5°C (default: 3°C)
#
Code
Description
N/A
[1-04]
Weather dependent cooling of the main
leaving water temperature zone is…
0 (disabled) (default)
1 (enabled)
N/A
[1-05]
Weather dependent cooling of the
additional leaving water temperature
zone is…
0 (disabled) (default)
1 (enabled)
NOTICE
When adjusting the room temperature ranges, all desired
room temperatures are also adjusted to guarantee they are
between the limits.
#
Code
Description
Room temp. range
[A.3.2.1.2]
[3-06]
Maximum temp (heating)
18~30°C (default: 30°C)
[A.3.2.1.1]
[3-07]
Minimum temp (heating)
12~18°C (default: 12°C)
[A.3.2.1.4]
[3-08]
Maximum temp (cooling)
25~35°C (default: 35°C)
[A.3.2.1.3]
[3-09]
Minimum temp (cooling)
15~25°C (default: 15°C)
#
Code
Description
[A.3.2.4]
[3-06]
Room temp. step
Q
1°C (default). The desired room
temperature on the user interface is
settable per 1°C.
Q
0.5°C The desired room
temperature on the user interface is
settable per 0.5°C. The actual room
temperature is displayed with an
accuracy of 0.1°C.
#
Code
Description
N/A
[9-0C]
1~6°C (default: 1°C)
#
Code
Description
Room temp. offset: Offset on the actual room temperature
measured on the user interface sensor.
[A.3.2.2]
[2-0A]
–5~5°C, step 0.1°C (default: 0°C)
Ext. room sensor offset: Only applicable if the external room sensor
option is installed and configured (see [C-08])
[A.3.2.3]
[2-09]
–5~5°C, step 0.1°C (default: 0°C)
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