Installation and operating instruction
Combustion manager W-FM 100 und W-FM 200
6 Operation
83054802 1/2018-07 La
136-228
Switch-off threshold (
ThresholdOff
)
Parameter
ThresholdOff
stipulates the switch-off threshold for the boiler cold
start function.
The switch-off threshold is given as a percent value and relates to the current set-
point W1 or W2. If an additional sensor is connected to input X60, the switch-on
threshold relates to the setpoint set under
Setp AddSensor
.
When the boiler temperature reaches the switch-off threshold set, the W-FM stops
the cold start sequence and the load control is activated.
Additional sensor (
AdditionalSens
)
If a pressure sensor is connected to input X61, the cold start function requires an
additional sensor at input X60 [ch. 3.3.20].
The additional sensor connected is defined in parameter
AdditionalSens
.
If the additional sensor has been defined, the setpoint set under
Setp
AddSensor
is deemed as the reference value for the boiler cold start function.
Temperature at additional sensor (
Temp. ColdStart
)
Parameter
Temp. ColdStart
shows the current temperature at the additional
sensor.
Setpoint for additional sensor (
Setp AddSensor
)
Parameter
Setp AddSensor
stipulates the setpoint for the boiler cold start
function if an additional sensor is defined.
Release stages (
Release Stages
)
In parameter
Release Stages
, stage 2 and stage 3 can be blocked for boiler
cold start function. The parameter is only effective in multi-stage operation.
Setting
Function
No release
Boiler cold start function is only carried out with stage 1.
Stage 2 and stage 3 are blocked for the boiler cold start
function. Parameters
MaxTmeStage
and
Stage-
Setp_Stage
have no effect.
Release
The boiler cold start function starts in stage 1. The next
stage switches, when the boiler temperature reaches the
current cold start setpoint or the residence time is ex-
ceeded.
Summary of Contents for W-FM 100
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