Daikin Altherma ERLQ004-006-008CA Reference Manual page 48

8 Configuration
# Code
Leaving water temperature range for the main leaving water
temperature zone (= the leaving water temperature zone with the
lowest leaving water temperature)
[A.3.1.1.2.2] [9-00] Maximum temp (heating)
37°C~55°C (default: 55°C)
[A.3.1.1.2.1] [9-01] Minimum temp (heating)
15°C~37°C (default: 25°C)
Leaving water temperature range for the additional leaving water
temperature zone (= the leaving water temperature zone with the
highest leaving water temperature)
[A.3.1.2.2.2] [9-06] Maximum temp (heating)
37°C~55°C (default: 55°C)
[A.3.1.2.2.1] [9-05] Minimum temp (heating)
15°C~37°C (default: 25°C)
Leaving water temperature overshoot temperature
This function defines how much the water temperature may rise
above the desired leaving water temperature before the compressor
stops. The compressor will startup again when the leaving water
temperature drops below the desired leaving water temperature.
# Code
N/A [9-04] 1°C~4°C (default: 1°C)
Leaving water temperature compensation around 0°C
In heating operation, the desired leaving water temperature is locally
increased around an outdoor
compensation can be selected when using an absolute or a weather
dependent desired temperature (see illustration below). Use this
setting to compensate for possible heat losses of the building due to
the evaporation of melted ice or snow (e.g. in cold region countries).
T T
t t
L L
R R
T
A
0°C 0°C
a b
a Absolute desired LWT
b Weather dependent desired LWT
T Ambient temperature (°C)
A
T Desired leaving water temperature
t
# Code
N/A [D-03] ▪ 0 (disabled) (default)
▪ 1 (enabled) L=2°C,
R=4°C (−2°C<T
▪ 2 (enabled) L=4°C,
R=4°C (−2°C<T
▪ 3 (enabled) L=2°C,
R=8°C (−4°C<T
▪ 4 (enabled) L=4°C,
R=8°C (−4°C<T
Installer reference guide
48
Description
Description
temperature of 0°C.
T
A
Description
<2°C)
A
<2°C)
A
<4°C)
A
<4°C)
A
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.
# Code
N/A [8-06]
Temperature ranges (room temperature)
ONLY applicable in room thermostat control. In order to save energy
by preventing overheating the room, you can limit the range of the
room temperature.
NOTICE
When adjusting the room temperature ranges, all desired
room temperatures are also adjusted to guarantee they are
between the limits.
# Code
Room temp. range
[A.3.2.1.2] [3-06]
[A.3.2.1.1] [3-07]
Room temperature step
ONLY applicable in room thermostat control and when the
temperature is displayed in °C.
# Code
[A.3.2.4] N/A
This
Room temperature hysteresis
ONLY applicable in case of room thermostat control. The hysteresis
band around the desired room temperature is settable. It is
recommended NOT to change the room temperature hysteresis as it
is set for an optimal use of the system.
a
b
c
[ 9-0C ]
a Room temperature
b Actual room temperature
c Desired room temperature
d Time
# Code
N/A [9-0C]
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
Description
0°C~10°C (default: 3°C)
Description
Maximum temp (heating)
18°C~30°C (default: 30°C)
Minimum temp (heating)
12°C~18°C (default: 12°C)
Description
Room temp. step
▪ 1°C (default). The desired
temperature on the user interface is
settable per 1°C.
▪ 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.
d
Description
1°C~6°C (default: 1°C)
ERLQ004~008CA + EHVZ04+08S18CB
Daikin Altherma – Low temperature split
4P401676-1 – 2015.02
room