Rang
Status
e
4
WaitingForStartCond.
10
CloseExtGasValve
12
CloseFlueGasValve
13
FanToPrePurge
14
WaitForReleaseSignal
15
BurnerOnCommandToSu
17
PreIgnition
18
Ignition
19
FlameCheck
20
Interpurge
30
Normal Int.Setpoint
31
Limited Int.Setpoint
32
NormalPowerControl
33
GradLevel1PowerCtrl
34
GradLevel2PowerCtrl
35
GradLevel3PowerCtrl
36
ProtectFlamePwrCtrl
37
StabilizationTime
38
ColdStart
39
ChResume
40
SuRemoveBurner
41
FanToPostPurge
44
StopFan
45
LimitedPwrOnTflueGas
48
Reduced Set Point
60
PumpPostRunning
61
OpenPump
63
SetAntiCycleTimer
105
Calibration
200
Initialising Done
201
Initialising Csu
202
Init. Identifiers
203
Init.BL.Parameter
204
Init. Safety Unit
205
Init. Blocking
7741254 - v.01 - 22112019
Explanation
The appliance waits for the temperature to meet the
start conditions.
An external gas valve is opened, when this option is
connected to the appliance. An external option board
must be connected to drive the valve.
The flue gas valve opens.
The fan runs faster to pre-purge.
The appliance waits for the release input to close.
A burner start command is sent to the safety core.
Ignition starts before the gas valve opens.
Ignition is active.
The flame detection is active after the ignition.
The fan runs to purge the heat exchanger after a
failed ignition.
The appliance operates to reach the desired value.
The appliance operates to reach the reduced internal
desired value.
The appliance operates on the desired power level.
The modulation is stopped due to a faster heat ex
changer temperature change than gradient level 1.
The modulation is set to low load due to a faster heat
exchanger temperature change than gradient level 2.
The appliance is in blocking mode due to a faster heat
exchanger temperature change than gradient level 1.
The burner power is increased due to a low ionisation
signal.
The appliance is in stabilisation time. Temperatures
should stabilise and temperature protections are
switched off.
The appliance runs at start load to prevent cold start
noise.
The appliance resumes central heating after a domes
tic hot water interruption.
Burner demand is removed from safety core.
The fan runs to purge the heat exchanger after the ap
pliance stopped.
The fan has stopped.
The power of the appliance is decreased to lower the
flue gas temperature.
The desired flow temperature is reduced to protect the
heat exchanger.
The pump is active after the appliance stopped in or
der to bring the remaining heat into the system.
The pump has stopped.
-
The electronic combustion process calibrates the
combustion.
Initialisation is finished.
The CSU is initialising.
The identifiers are initialising.
The blocking parameters are initialising.
The safety unit is initialising.
The blocking is initialising.
en
4 Settings
11