8 Operating instructions Compact 0020313974_00
for longer than two minutes. The display
either shows the target flow temperature
(if no control is connected) or the message
on and/or oF (if a control is connected).
The basic display (B) shows the current
product status. If you press a selection
button, the activated function is displayed
in the display.
The functions that are available depend
on whether a control is connected to the
product.
To return to the basic display, press .
5.1.2 Operating levels
The product has two operating levels:
– The end user level shows the informa-
tion and offers setting options which do
not require any special prior knowledge.
– Specialised knowledge is required in or-
der to use the installer level (access for
competent persons). This is therefore
protected by an access code.
5.2 Setting the heating flow
temperature
Condition: No control connected
▶ In the basic display, press once to
ensure that the symbol flashes.
◁ The set heating flow temperature
appears in the display.
▶ Press or to set the required
heating flow temperature.
▶ Confirm by pressing .
◁ The set temperature flashes twice
rapidly.
Condition: Control connected
▶ In the basic display, press once to
ensure that the symbol flashes.
◁ on or oF appears in the display.
– on indicates that heating mode is
switched on.
– oF indicates that heating mode is
switched off.
▶ If oF is shown in the display, press the
button to switch on heating mode.
▶ Confirm by pressing .
◁ on flashes twice rapidly.
▶ Set the required heating flow temperat-
ure on the control (→ Control operating
instructions).
5.3 Setting the domestic hot water
temperature
1. Press twice in the basic display to
ensure that the symbol flashes.
◁ The set domestic hot water temper-
ature appears in the display.
Condition: No control connected
▶ Press or to set the required
water temperature.
▶ Confirm by pressing .
◁ The set temperature flashes twice
rapidly.
Condition: Control connected
▶ Set the required domestic hot water
temperature on the control (→ Control
operating instructions).
5.4 Switching off heating mode
(Summer mode)
Condition: No control connected
▶ To switch off heating mode, press .
◁ The value of the heating flow temper-
ature appears in the display.
▶ Press to reduce the heating flow
temperature and set it to oF.
▶ Confirm by pressing .
◁ oF flashes twice rapidly, heating
mode is deactivated.
◁ The symbol is no longer shown in
the display.