Weishaupt W-FM 100 Installation And Operating Instruction page 163

83054802 1/2018-07 La
Installation and operating instruction
Combustion manager W-FM 100 und W-FM 200
8. Adjust full load
When adjusting, the ratings data given by the boiler manufacturer and the capacity
graph of the burner should be observed.
Only in conjunction with frequency converter
Select speed at full load as low as possible, but not less than 80 %. Observe flame
stability.
If the burner is equipped with an adjustable mixing head:
Set auxiliary actuator for mixing head (Aux1) to diagram, see installation and op-
erating manual of burner.
Alternately adapt combustion values via the air damper setting (Air) and if ne-
cessary the speed (FC).
Calculate gas throughput (operating volume V
Set the position of the gas butterfly valve (Burn) to approx. 60.0 ... 70.0° in
the full load point.
Adjust setting pressure at the pressure regulator until gas throughput (V
achieved.
Check combustion values
Determine combustion limit and set excess air [ch. 7.9].
Only in conjunction with flue gas recirculation
If the burner is later operated with flue gas recirculation, the recirculated flue gas
reduces the excess air.
Set excess air 25 ... 30 % above the combustion limit to ensure sufficient com-
bustion air during the commissioning of the flue gas recirculation.
On burners with separate combustion air fan, the air dampers (Aux2) in front of the
FGR connection housing must also be slightly closed [ch. 6.15.1.2].
Set excess air 25 ... 30 % above the combustion limit.
Close air dampers in front of FGR connector housing (Aux2) until the O
reduces by approx. 0.4 % points.
Increase the O content again to the previous value using the air influencing ac-
2
tuators, whilst observing the flame stability.
Determine gas throughput again.
If necessary adjust setting pressure at pressure regulator and reset excess air.
The setting pressure must not be altered once this work has been completed.
163-228
7 Commissioning
) required [ch. 7.10].
B
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B
content
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