0020244997_07 Installation and maintenance instructions 31
8 Operation
8.1 Operating concept
The operating concept and the read-off and setting facilities
of the operator level are described in the operating instruc-
tions.
An overview of the reading and setting options for the in-
staller level is included in the table in the appendix.
Installer level – Overview (→ Page 52)
8.2 Calling up the installer level
1. Only call up the installer level if you are a competent
person.
2. Navigate to Menu → Installer level and confirm by
pressing .
3. Set the value 17 (code) and confirm by pressing .
8.3 Live Monitor (status codes)
Menu → Live monitor
Status codes in the display provide information on the pro-
duct's current operating mode.
Status codes – Overview (→ Page 59)
8.4 Setting the hot water temperature
Validity: Product with integrated hot water generation OR Product with hot
water generation through external domestic hot water cylinder
Danger!
Risk of death from legionella.
Legionella multiply at temperatures below
60 °C.
▶ Ensure that the end user is familiar with
all of the Anti-legionella measures in order
to comply with the applicable regulations
regarding legionella prevention.
▶ Set the hot water temperature.
Condition: Water hardness: > 3.57 mol/m³
– Water temperature: ≤ 50 ℃
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