Installation & Servicing instructions
AT
AG XL
39
9.1 Operational status
-
Standby
Standby. Boiler is ready for operation.
-
Vent.Phase
Ventilation stage
-
Ignition phase
Ignition stage
-
Burner lit CH
Burner active for heating
-
Burner lit DHW
Burner active for hot water
-
CH T > Tset
Burner off on account of too high flow temperature CH
-
Overrun CH
Overrun time pump over CH
-
Overrun DHW
Overrun time pump over DHW
-
Service
Boiler needs maintenance. Contact installer
-
Frost
Burner active for frost protection
9.2 Operation
The keyboard consists of a logical button allocation for menu control, confirmation, and
correction and emission measurement.
Value
increase
/
change
Emission
measurement
Back
/
correction
Backward
Forward
Reset*
Confirm selection
Value
decrease
/
change
* Reset only functions in case of an Error or Message. If reset is rapidly pressed over
a short period of time, the device will block completely. Only loss of power (unplug) will
restart the device completely. Recommendation: First identify the fault by finding the
fault code in the fault-code list in the problem-shooting chapter and solve the problem.
The main switch is located on the right hand side of the keyboard. This switch controls
the 230V power supply (L and N).
Standby
R
OK
-
+
R
OK
-
+
0-10Volt
Open-
Therm
On/Off
T3
DHW
230V~
AC
230V
out
230V~
AC
230V
out
L
N
L
N
L
N
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
1 2 3 4 5 6
Error
signal
Heat
demand
signal
LPG
On/Off
1 2 3 4 5 6 7 8 9 10 11 12 13 14
T10
General
purpose
LWCO
N
N
L
230V Pump / 3-WV.
L
230V Pump P3
230V out
230V~ AC
T4
Out
8X.44.08.00 / 05.1
1
L
N
230V DHW pump
Bus
8X.44.09.00 / 05.1
1