8 Configuration
Installer reference guide
54
ERGA04~08DAV3(A) + EHBH/X04+08DA
Daikin Altherma – Low temperature split
4P496758-1 – 2017.12
Heating WD curve
Set weather-dependent heating for the main zone (if [2.4] = 1 or 2):
# Code Description
[2.5] [1-00]
[1-01]
[1-02]
[1-03]
Set weather-dependent heating:
[1-03]
[1-02]
T
a
T
t
[1-00] [1-01]
▪ T
t
: Target leaving water temperature
(main zone)
▪ T
a
: Outdoor temperature
▪ [1-00]: Low outdoor ambient
temperature. –40°C~+5°C
▪ [1-01]: High outdoor ambient
temperature. 10°C~25°C
▪ [1-02]: Desired leaving water
temperature when the outdoor
temperature equals or drops below the
low ambient temperature.
[9‑01]°C~[9‑00]°C
Note: This value should be higher
than [1‑03] as for low outdoor
temperatures warmer water is
required.
▪ [1-03]: Desired leaving water
temperature when the outdoor
temperature equals or rises above the
high ambient temperature.
[9‑01]°C~min(45, [9‑00])°C
Note: This value should be lower than
[1‑02] as for high outdoor
temperatures less warm water is
required.
Cooling WD curve
Set weather-dependent cooling for the main zone (if [2.4] = 2):
# Code Description
[2.6] [1-06]
[1-07]
[1-08]
[1-09]
Set weather-dependent cooling:
[1-09]
[1-08]
T
a
T
t
[1-06] [1-07]
▪ T
t
: Target leaving water temperature
(main zone)
▪ T
a
: Outdoor temperature
▪ [1-06]: Low outdoor ambient
temperature. 10°C~25°C
▪ [1-07]: High outdoor ambient
temperature. 25°C~43°C
▪ [1-08]: Desired leaving water
temperature when the outdoor
temperature equals or drops below the
low ambient temperature.
[9‑03]°C~[9‑02]°C
Note: This value should be higher
than [1‑09] as for low outdoor
temperatures less cold water is
required.
▪ [1-09]: Desired leaving water
temperature when the outdoor
temperature equals or rises above the
high ambient temperature.
[9‑03]°C~[9-02]°C
Note: This value should be lower than
[1‑08] as for high outdoor
temperatures colder water is required.
Emitter type
Depending on the system water volume and the heater emitter type
of the main zone, the heat up or cool down of the main zone can
take longer. This setting can compensate for a slow or a quick
heating/cooling system during the heat up/cool down cycle. The
target delta T for the main zone will depend on this setting.
In room thermostat control, this setting will influence the maximum
modulation of the desired leaving water temperature, and the
possibility for usage of the automatic cooling/heating changeover
based on the indoor ambient temperature.
Therefore it is important to set this correctly and in accordance with
your system layout.
# Code Description
[2.7] [2‑0C] Emitter type
▪ 0: Underfloor heating
▪ 1: Fancoil unit
▪ 2: Radiator
The setting of the emitter type has an influence on the space heating
setpoint range and the target delta T in heating as follows:
Emitter type Main
zone
Space heating
setpoint range
[9‑01]~[9‑00]
Target delta T in
heating [1‑0B]
0: Underfloor heating Maximum 55°C Variable (see [2.B])
1: Fancoil unit Maximum 55°C Variable (see [2.B])
2: Radiator Maximum 65°C Fixed 10°C
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