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Configuration
Installer reference guide
152
E EHFH03S18D
Daikin Altherma 3 R F
4P596806-1C – 2022.09
▪
When auto emergency is set to
Manual
and a heat pump failure occurs, the
domestic hot water and space heating operations will stop and need to be
recovered manually. The user interface will then ask the user to confirm whether
the boiler can take over the entire heat load or not.
When the heat pump fails, will appear on the user interface. If the house is
unattended for longer periods, we recommend to set [A.6.C]
Emergency
to
Automatic
.
#
Code
Description
[A.6.C]
N/A
Emergency
:
▪
0:
Manual
▪
1:
Automatic
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 [A.6.C] is set to
Manual
, the following functions will
remain active even if the user does NOT confirm emergency operation:
- Room frost protection
- Underfloor heating screed dryout
- Water pipe freeze prevention
However, the disinfection function will be activated ONLY if the user confirms
emergency operation via the user interface.
Bivalent
Only applies to indoor unit installations with an auxiliary boiler (alternating
operation, connected in parallel). The purpose of bivalent operation is to
determine which heating source can/will provide the space heating, either the
indoor unit or an auxiliary boiler.
INFORMATION
Bivalent is only possible in case of 1 leaving water temperature zone with:
▪
room thermostat control, OR
▪
external room thermostat control.
#
Code
Description
N/A
[C-02]
Indicates if the space heating is also performed
by means of another heat source than the
system.
▪
0
No
▪
1
Bivalent
: Installed. The auxiliary boiler (gas
boiler, oil burner) will operate when the
outdoor ambient temperature is low. During
bivalent operation, the heat pump is turned off.
Set this value in case an auxiliary boiler is used.
▪
If bivalent is enabled: When the outdoor temperature drops below the bivalent
ON, the space heating by the indoor unit stops automatically and the permission
signal for the auxiliary boiler is active.