Daikin Altherma 3 GEO Installation Manual page 25

Backup heater type
The backup heater is adapted to be connected to most common
European electricity grids. The type of backup heater must be set on
the user interface. For units with a built-in backup heater, the type of
heater can be viewed but not changed.
Domestic hot water
The following setting determines if the system can prepare domestic
hot water or not, and which tank is used. This setting is read only.
# Code
(*)
[9.2.1] [E‑05] ▪ No DHW (domestic hot water)
(*)
[E‑06] ▪ Integrated
The backup heater will also be used
(*)
[E‑07]
for domestic hot water heating.
(*) Menu structure setting [9.2.1] replaces the following 3
overview settings:
[E-05] Can the system prepare domestic hot water?
[E-06] Is a domestic hot water tank installed in the system?
[E-07] What kind of domestic hot water tank is installed?
Emergency
When the heat pump fails to operate, the backup heater can serve
as an emergency heater. It then takes over the heat load either
automatically or by manual interaction.
▪ When Emergency is set to Automatic and a heat pump failure
occurs, the backup heater automatically takes over the domestic
hot water production and space heating.
▪ When Emergency is set to Manual and a heat pump failure
occurs, the domestic hot water heating and space heating stops.
To manually recover it via the user interface, go to the
Malfunctioning main menu screen and confirm whether the
backup heater can take over the heat load or not.
▪ Alternatively, set Emergency to one of the following modes:
▪ auto SH reduced/DHW
domestic hot water is still available.
▪ auto SH reduced/DHW off: space heating is reduced and
domestic hot water is NOT available.
▪ auto SH normal/DHW
normally but domestic hot water is NOT available.
Similarly as in Manual mode, the unit can take the full load with the
backup heater if the user activates this via the Malfunctioning
main menu screen.
To keep energy consumption low, we recommend to set Emergency
to auto SH reduced/DHW off if the house is unattended for longer
periods.
# Code
[9.5.1] N/A ▪ 0: Manual
▪ 1: Automatic
▪ 2: auto SH reduced/DHW on
▪ 3: auto SH reduced/DHW off
▪ 4: auto SH normal/DHW off
INFORMATION
If a heat pump failure occurs and Emergency is not set to
Automatic (setting 1), the room frost protection function,
the underfloor heating screed dryout function, and the
water pipe antifreeze function will remain active even if the
user does NOT confirm emergency operation.
Number of zones
The system can supply leaving water to up to 2 water temperature
zones. During configuration, the number of water zones must be set.
EGSAH/X06+10DA9W(G)
Daikin Altherma 3 GEO
4P569811-1 – 2019.02
Description
on: space heating is reduced but
off: space heating operates as
Description
INFORMATION
Mixing station. If your system layout contains 2 LWT
zones, you need to install a mixing station in front of the
main LWT zone.
# Code
[4.4] [7‑02] ▪ 0: Single zone
Only one leaving water temperature
zone:
▪ a: Main LWT zone
[4.4] [7‑02] ▪ 1: Dual zone
Two leaving water temperature zones.
The main leaving water temperature
zone consists of the higher load heat
emitters and a mixing station to
achieve the desired leaving water
temperature. In heating:
▪ a: Additional LWT zone: Highest
temperature
▪ b:
temperature
▪ c: Mixing station
CAUTION
If there are 2 zones, it is important that the zone with the
lowest water temperature is configured as the main zone,
and the zone with the highest water temperature is
configured as the additional zone. Not configuring the
system in this way could cause damage to the heat
emitters.
6 Configuration
Description
a
a
c
b
Main LWT zone: Lowest
Installation manual
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