10
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Configuration
Installer reference guide
151
E EHFH03S18D
Daikin Altherma 3 R F
4P596806-1C – 2022.09
INFORMATION
Disinfection function is restarted in case the domestic hot water temperature drops
5°C below the disinfection target temperature within the duration time.
INFORMATION
An AH error occurs if you do the following during disinfection:
▪
Set the user permission level to Installer.
▪
Go to the DHW tank temperature home page (
Tank
).
▪
Press to interrupt the disinfection.
10.4.3 Heat source settings
Backup heater
Backup heater operation mode: defines when backup heater operation is disabled
or only allowed during domestic hot water operation. This setting is only overruled
when backup heating is required during defrost operation or malfunctioning of the
outdoor unit (when [A.6.C] is enabled).
#
Code
Description
[A.5.1.1]
[4‑00]
Backup heater operation:
▪
0:
Disabled
▪
1:
Enabled
▪
2:
Only DHW
N/A
[5-00]
Equilibrium.
Deactivate backup heater (or external backup
heat source in case of a bivalent system) above
the equilibrium temperature for space heating?
▪
0: No
▪
1: Yes
[A.5.1.4]
[5‑01]
Equilibrium temp.
Outdoor temperature below which operation of
the backup heater (or external backup heat
source in case of a bivalent system) is allowed.
Range: –15°C~35°C
INFORMATION
Only for systems with integrated domestic hot water tank: If backup heater
operation during space heating needs to be limited but can be allowed for domestic
hot water operation, then set [4‑00] to 2.
Auto emergency
When the heat pump fails to operate, the gas boiler can serve as an emergency
back-up heater and either automatically or non-automatically take over the entire
heat load.
▪
When auto emergency is set to
Automatic
and a heat pump failure occurs, the
boiler will automatically take over the heat load.
