Daikin Altherma R Hybrid Installer's Reference Manual page 132

8 | Configuration
Heat source settings
Installer reference guide
132
WARNING
Be aware that the domestic hot water temperature at the hot water tap will be equal
to the value selected in field setting [2-03] after a disinfection operation.
When the high domestic hot water temperature can be a potential risk for human
injuries, a mixing valve (field supply) shall be installed at the hot water outlet
connection of the domestic hot water tank. This mixing valve shall secure that the
hot water temperature at the hot water tap never rise above a set maximum value.
This maximum allowable hot water temperature shall be selected according to the
applicable legislation.
CAUTION
Be sure that the disinfection function start time [A.4.4.3] with defined duration
[A.4.4.5] is NOT interrupted by possible domestic hot water demand.
NOTICE
Disinfection mode. Even if you turn OFF domestic hot water operation via the
DHW tank temperature home page (Tank), disinfection mode will remain active.
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.
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.
▪ 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,
unattended for longer periods, we recommend to set [A.6.C] Emergency to
Automatic.
# Code
[A.6.C] N/A
will appear on the user interface. If the house is
Description
Emergency:
▪ 0: Manual (default)
▪ 1: Automatic
CHYHBH05+08AF + EHYKOMB33A
Daikin Altherma R Hybrid
4P471761-1E – 2020.10