Secondary air opening at 0% signal
At 0% control of the secondary air flap, this will open by
the specified value.
Secondary air opening at 100% control
At 100% control of the secondary air flap, this will open by
the maximum specified value.
Primary air delay
Time constant for low-pass filtering of the primary air flap
control.
Primary air boost during heating up (absolute)
The control value of the primary air is increased by this
value during heating up. The absolute control refers to the
maximum path of the actuator.
Duration of primary air boost
Indicates the duration of the primary air boost that starts
with “
Heating up
“ status.
Primary air boost during shutdown (absolute)
Increase of primary air from “
Empty stoker
” boiler
status. This value also affects the value calculated by the
combustion control.
ID fan startup time
Corresponds to the minimum time of the boiler in
“
Preparation
“ status.
Primary air when boiler off
Specifies the primary air flap opening in percent in
“
Boiler off
” status.
Primary air boost for startup
Parameter for primary air increase at the start of heating.
The primary air boost remains active for the entire heating
up process and after changing to “heating” status for the
boost duration or until the minimum combustion chamber
temperature is reached. After this time the primary air
boost is reduced again.
Start secondary air cooling at CCT signal
Specifies the start point for secondary air cooling as a
percentage of the combustion chamber temperature
control band. The control band is defined by the
parameters "0% CCT signal at CCT" and "100% CCT
signal at CCT". For the start of cooling you should ensure
that the secondary air does not begin at 0, but at the
current (oxygen managed) secondary air setting.
End secondary air cooling at CCT signal
Specifies the end point for secondary air cooling as a
percentage of the combustion chamber temperature
control band. The control band is defined by the
parameters "0% CCT signal at CCT" and "100% CCT
signal at CCT". At this value the secondary air flap has
reached the maximum permitted opening.
Start of output reduction at CCT signal
Description should also be changed in the SPS operating
instructions:
Specifies the start point for power reduction as a
percentage of the combustion chamber temperature
control band. The control band is defined by the
parameters "0% CCT signal at CCT" and "100% CCT
signal at CCT". If the combustion chamber temperature
signal exceeds this value, the fuel feed-in and the primary
air are reduced. Both have the minimum value at 100%
combustion chamber temperature signal.
Boiler underpressure setpoint
Desired underpressure which is to be maintained during
the operation of the boiler.
Minimum underpressure
If this underpressure is not reached within a defined period
of time, a warning is issued.
Time until error for MIN underpressure in combustion
chamber
If the specified underpressure is not reached after this
time, a fault is issued.
Max. power reduction through under pressure control
Maximum power reduction when setpoint underpressure
not reached.
Minimum output
Minimum value of boiler control variable which can be
used to operate the boiler.
Parameters overview
4
System
Service manual Lambdatronic H 3200 for wood chip boiler | B1480721_en
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