SERVICE
13
SYSTEM OPTIONS
Display View – Main menu
Main menu is visible for the consumer
Here the automatic Legionella function can be switched on.
If switched (
"ON"
) the heat pump will once weekly increase the
temperature to 65°C, in order to eliminate possible bacteria.
We recommend activating the legionella function in the night time where
hot water is not used.
The procedure must be activated in the parameter menu.
If the legionella procedure is activated, the legionella sequence will start immediately.
If the legionella procedure is deactivated, the legionella sequence will stop immediately.
If activated a new “legionella protection” cycle starts automatically after 7 days (168 hours). The function will be
deactivated at power cut.
In order to protect your installation against “legionella” or other bacteria, the water temperature goes up to 62°C by
means of the HP and the supplementary additional heating. At 62°C the device switches to the “supplementary
heating only mode” to heat further up to 65°C. This temperature is maintained for 1 hour before it will switch back to
normal operating mode. The “legionella protection cycle” is limited to 12 hours. If the legionella temperature is not
reached*, an alarm will be displayed. The alarm will disappear automatically after the next successful legionella
sequence or be reset on user acknowledgement.
* If the air temperature is too low and/or the DHW energy requirement during the “legionella protection” cycle is
higher than the needed output for the “legionella-protection” procedure.
