GB-7
D
GB
NL
RUS
PL
F
E
UA
CN
ACU control panel
MODE
RESET
ON/OFF
MODE
RESET
ON/OFF
MODE
RESET
ON/OFF
1
3
5
7
4
2
6
ON/OFF
OFF
1
2
3
4
5
AUTO
+AUT
MODE
(RESET)
ON/OFF
O
LEDs
MODE selection button
4
RESET button
5
Status indicator light
6
Optical interface
7
7-segment display
Description of function
ON/OFF
OFF
1
2
3
4
5
AUTO
+AUT
MODE
(RESET)
ON/OFF
O
:
To switch the heater on and off
LEDs:
To indicate the chosen operating mode
Operating
mode
Explanation
The burner control unit waits for the
signals for controlled air flow or heating
(automatic)
Continuous heating
(manual)
Controlled air flow in continuous op-
eration
(manual)
Controlled air flow in continuous op-
eration and heating when a thermostat
signal is applied
(automatic)
MODE selection button:
Setting mode can be accessed by pressing and
holding the MODE selection button when the
heater is switched off, see page 8 (Setting
mode). The multi-functional outputs can be as-
signed and the eBus address specified in this
mode.
4
RESET button:
To reset the device after the occurrence of a fault
5
Status indicator light:
red: fault
yellow: standby/ready for operation
green: in operation
6
Optical interface:
The PC software BCSoft can be used with the PC
opto-adapter via this interface, see page 20
(Accessories).
7
7-segment display:
To display error codes, the flame signal or the
number of operating cycles. The decimal point
indicates that another figure follows.
Error code
RESET button
Flame signal
Operating cycles
> 3 s RESET button
ON
Error code: an error is displayed immediately
in the form of an alternating letter and number
indicating a warning or fault, see page 12 (As-
sistance in the event of malfunction).
Flame signal: pressing the RESET button displays
the flame signal, see page 9 (Flame signal).
Operating cycles: press and hold the RESET
button for more than 3 s to show the number
of operating cycles in changing displays, see
page 18 (Maintenance).
▷
Press the RESET button to exit the display of
the flame signal or operating cycles.
Switching on
•
Press ON/OFF
OFF
1
2
3
4
5
AUTO
+AUT
MODE
(RESET)
ON/OFF
O
.
▷
The LED for the last selected operating mode will
flash. A different operating mode can be selected
within 2 s. If you retain the selection, the flash-
ing light will change to permanently lit after 2 s.
▷
The heater will start once the thermostat signal
has been applied and the set switch-on delay
elapsed, see page 6 (Setting the switch-on
delay).
▷
The burner starts up and operates in the last
selected operating mode.
Switching off
•
Press ON/OFF
OFF
1
2
3
4
5
AUTO
+AUT
MODE
(RESET)
ON/OFF
O
.
▷
The burner control unit display and the burner
will switch off immediately. Mains voltage is still
supplied however. The display indicates “–”.
▷
The main fan cools the heater down until it
reaches switch-off temperature.
CAUTION
– Do not disconnect the heater from the electrical
power supply until the post-cooling process has
been completed.
▷
The display “–” will go out.
