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Installation and operating instruction
Combustion manager W-FM 100 und W-FM 200
7 Commissioning
83054802 1/2018-07 La
161-228
3. Check mixing pressure in ignition position
Select
ProgramStop
.
Select
36 IgnPos
.
Use [esc] key to return to the display with
GasSettings
.
Select
Autom/Manual/Off
.
Select
Manual
(Burner On).
The burner starts and stops in ignition position without flame formation
Check rotation direction of fan wheel.
Check mixing pressure in ignition position, see installation and operating manual
of burner.
Standard: 1.0 … 2.0 mbar above combustion chamber pressure
3LN (multiflam): 1.5 … 2 mbar above combustion chamber pressure
If necessary, adjust mixing pressure via air damper setting:
Select
GasSettings
.
Select
SpecialPositions
.
Select
IgnitionPos
.
Select
IgnitionPosGas
and adjust.
Use [esc] key to return to the display
IgnitionPos
.
4. Check gas valves
Set new program stop:
without ignition gas:
44 Interv 1
with ignition gas:
52 Interv 2
Ensure that the valves open and close correctly.
The burner attempts to ignite.
The low gas pressure switch reacts.
5. Ignition
Open gas isolating valve.
The burner restarts the sequence of operation.
The burner ignites and the actuators stop in the ignition position.
Preset setting pressure on pressure regulator taking the expected combustion
chamber pressure into consideration.
Determine combustion values at ignition position.
Set O
2
content of approx. 4 … 5 % via gas butterfly valve setting (
IgnPosGas
).
6. Adjusting low gas pressure switch
DANGER
Risk of explosion due to falling gas supply pressure
Flame failure can lead to explosion.
Set low gas pressure switch to 70 % of the setting pressure.