Daikin ERLA11D V3 Series Installer's Reference Manual page 216

11 | Configuration
Balancing
Installer reference guide
216
▪ 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 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
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] [4-06]
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 not set to Automatic (setting 1),
the room frost protection function and the underfloor heating screed dryout
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
# Code
[9.5.2] [7-06]
Priorities
For systems with an integrated domestic hot water tank.
off, space heating operates as normally but
Description
▪ 0: Manual
▪ 1: Automatic
▪ 2: auto SH reduced/DHW on
▪ 3: auto SH reduced/DHW off
▪ 4: auto SH normal/DHW off
Description
Activation of the Compressor forced off
mode:
▪ 0: disabled
▪ 1: enabled
ERLA11~16D + EBVH/X11+16S18+23D
Daikin Altherma 3 R F
4P643602-1B – 2022.05