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Configuration
Installer reference guide
199
EBLA09~16D + EDLA09~16D
Daikin Altherma 3 M
4P620241-1B – 2022.05
Emergency
Emergency
When the heat pump fails to operate, the backup heater and/or booster 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 heat load, and the booster heater in
the optional tank takes over the domestic hot water production.
▪
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 and/or booster heater can
take over the heat load or not.
▪
Alternatively, when
Emergency
is set to:
-
auto SH reduced/DHW on
, space heating is reduced but 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 off
, space heating operates as normally but
domestic hot water is NOT available.
Similarly as in
Manual
mode, the unit can take the full load with the backup
heater and/or booster 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
Description
[9.5.1]
[4-06]
▪
0:
Manual
▪
1:
Automatic
▪
2:
auto SH reduced/DHW on
▪
3:
auto SH reduced/DHW off
▪
4:
auto SH normal/DHW off
INFORMATION
The auto emergency setting can be set in the menu structure of the user interface
only.
INFORMATION
If a heat pump failure occurs and
Emergency
is set to
Manual
, 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.
Compressor forced off
Compressor forced off
mode can be activated to only allow the backup
heater to provide domestic hot water and space heating. When this mode is
activated:
▪
Heat pump operation is NOT possible
▪
Cooling is NOT possible
