Daikin Altherma 3 GEO Series Installer's Reference Manual page 79

# Code
(1)
[9.3.5] [4-07] 0~6 kW when voltage is set to 230 V,
1N~
0~9 kW when voltage is set to 400 V,
3N~
(1) If the value [4-07] is set lower, then the lowest value will be
used in all operation modes.
Emergency
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, when Emergency is set to:
▪ 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
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.
HP forced off
HP forced off mode can be activated to allow the backup heater
to provide domestic hot water and space heating. This is, for
example, useful when the brine circuit is not yet ready to be used.
Cooling is NOT possible when this mode is activated.
# Code
[9.5.2] [7-06] Activation of the HP forced off mode
▪ 0: disabled
▪ 1: enabled
EGSAH/X06+10DA9W(G)
Daikin Altherma 3 GEO
4P569820-1A – 2019.09
Description
on, space heating is reduced but
off, space heating operates as
user activates this via
Description
Description
NOTICE
Activating HP forced off mode will NOT stop or prevent
the brine pump from operating in the following conditions:
▪ 10 day brine pump operation is active
▪ The Brine pump test run has been started
▪ Passive cooling is active
Balancing
Priorities
For systems with an integrated domestic hot water tank
# Code
[9.6.1] [5‑02]
[9.6.2] [5‑03]
the
Timers for simultaneous space and domestic hot water
operation request
[8-02]: Anti-recycle timer
1
0
1
0
[8-01]
1 Heat pump domestic water heating mode (1=active, 0=not
active)
2 Hot water request for heat pump (1=request, 0=no request)
t Time
[8-04]: Additional timer at [4-02]/[F-01]
t
[8-01]+
[8-04]
[8-02]
[8-01]
0
[5-03]
T Ambient (outdoor) temperature
A
10 Configuration
Description
Space heating priority: Defines
whether backup heater will assist the
heat pump during domestic hot water
operation.
For optimal operation and lowest power
consumption, it is strongly
recommended to keep the default
setting (0).
If the backup heater operation is limited
([4‑00]=0) and the outdoor temperature
is lower than setting [5‑03], the
domestic hot water will not be heated
with the backup heater.
Priority temperature: Used for
calculation of anti-recycling timer. If
[5‑02]=1, it defines the outdoor
temperature below which the backup
heater will assist during domestic hot
water heating.
[5‑01] Equilibrium temperature and
[5‑03] Space heating priority
temperature are related to backup
heater. So, you must set [5‑03] equal or
a few degrees higher than [5‑01].
t
[8-02]
t
[8-01]+
[8-04]
[8-02]
[8-01]
0
[4-02] [F-01]
T
A
Installer reference guide
35°C
T
A
79