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8 Configuration
8.3
Advanced configuration/optimization
8.3.1
Space heating/cooling operation:
advanced
Preset leaving water temperature
You can define preset leaving water temperature temperatures:
▪ economic (denotes the desired leaving water temperature which
results in the lowest energy consumption)
▪ comfort (denotes the desired leaving water temperature which
results in the highest energy consumption).
Preset values make it easy to use the same value in the schedule or
to adjust the desired leaving water temperature according to the
room temperature (see modulation). If you later want to change the
value, you only have to do it in one place. Depending on whether the
desired leaving water temperature is weather dependent or not, the
absolute desired leaving water temperature should be specified or
the desired shift values.
NOTICE
The preset leaving water temperature temperatures are
only applicable for the main zone, as the schedule for the
additional zone consists of On/OFF actions.
NOTICE
Select preset leaving water temperatures in accordance
with the design and selected heat emitters to ensure the
balance between desired room and leaving water
temperatures.
#
Code
Preset leaving water temperature for the main leaving water
temperature zone in case of NOT weather dependent
[7.4.2.1]
[8-09]
Comfort (heating)
[9-01]~[9-00] (default: 35°C)
[7.4.2.2]
[8-0A]
Eco (heating)
[9-01]~[9-00] (default: 33°C)
[7.4.2.3]
[8-07]
Comfort (cooling)
[9-03]~[9-02] (default: 18°C)
[7.4.2.4]
[8-08]
Eco (cooling)
[9-03]~[9-02] (default: 20°C)
Preset leaving water temperature (shift value) for the main leaving
water temperature zone in case of weather dependent
[7.4.2.5]
N/A
Comfort (heating)
−10~+10°C (default: 0°C)
[7.4.2.6]
N/A
Eco (heating)
−10~+10°C (default: −3°C)
[7.4.2.7]
N/A
Comfort (cooling)
−10~+10°C (default: 0°C)
[7.4.2.8]
N/A
Eco (cooling)
−10~+10°C (default: +3°C)
Temperature ranges (leaving water temperatures)
The purpose of this setting is to prevent selecting a wrong (i.e. too
hot or too cold) leaving water temperature. Thereto the available
desired heating temperature range and desired cooling temperature
range can be configured.
Installer reference guide
52
Description
NOTICE
In case of a floor heating application it is important to limit
the:
▪ maximum leaving water temperature at heating
operation according to the specifications of the floor
heating installation.
▪ the minimum leaving water temperature at cooling
operation to 18~20°C to prevent condensation on the
floor.
NOTICE
▪ When adjusting the leaving water temperature ranges,
all desired leaving water temperatures are also
adjusted to guarantee they are between the limits.
▪ Always balance between the desired leaving water
temperature with the desired room temperature and/or
the capacity (according to the design and selection of
the
heat
emitters).
temperature is the result of several settings (preset
values, shift values, weather dependent curves,
modulation). As a result, too high or too low leaving
water temperatures could occur which lead to
overtemperatures or capacity shortage. By limiting the
leaving water temperature range to adequate values
(depending on the heat emitter), such situations can be
avoided.
Example: Set the minimum leaving water temperature to 28°C to
avoid NOT to be able to heat up the room: leaving water
temperatures must be sufficient higher than the room temperatures
(in heating).
#
Code
Leaving water temperature range for the main leaving water
temperature zone (= the leaving water temperature zone with the
lowest leaving water temperature in heating operation and the
highest leaving water temperature in cooling operation)
[A.3.1.1.2.2] [9-00]
Maximum temp (heating)
37~depending on outdoor unit (default:
55°C)
[A.3.1.1.2.1] [9-01]
Minimum temp (heating)
15~37°C (default: 25°C)
[A.3.1.1.2.4] [9-02]
Maximum temp (cooling)
18~22°C (default: 22°C)
[A.3.1.1.2.3] [9-03]
Minimum temp (cooling)
5~18°C (default: 5°C)
Leaving water temperature range for the additional leaving water
temperature zone (= the leaving water temperature zone with the
highest leaving water temperature in heating operation and the
lowest leaving water temperature in cooling operation)
[A.3.1.2.2.2] [9-06]
Maximum temp (heating)
37~depending on outdoor unit (default:
55°C)
[A.3.1.2.2.1] [9-05]
Minimum temp (heating)
15~37°C (default: 25°C)
[A.3.1.2.2.4] [9-08]
Maximum temp (cooling)
18~22°C (default: 22°C)
ERLQ004~008CAV3 + EHVH/X04+08S18CA + EHVH/X08S26CA
The
desired
leaving
water
Description
Daikin Altherma - Low Temperature Split
4P313775-1C – 2012.11
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