10/2007 - Art. Nr. 13 017 700B 11
Start-up
Description and settings
1-stage gas valve
Progressive setting control
Flow setting control
Pressure
switch
Coil
Access to filter
Connection
flanges
pBr
Pressure
regulator
control
S 20 = 4 to 20 mbar
S 50 = 4 to 50 mbar
Locking
screw
Painted
screw
1-stage burner
MB DLE...B01S..
Compact assembly consisting of a filter,
an adjustable air pressure switch, a non
adjustable, quick acting safety valve, an
adjustable pressure controller, a quick
closing main valve of which the flow rate
is incrementally adjustable on opening.
On delivery :
- the main valve is fully open,
- the incremental advance is fully
efficient,
- the controller is set at 10 mbar,
- the air pressure switch is set at min.
General setting procedure:
- leave the main valve fully open,
- set the flow rate by acting only on the
controller, the firing rate and the
1
st
stage incremental advance.
Controller setting :
The screw used to adjust pressure pBr
has a 78-turn travel length.
• Check the pressure on the multibloc at
pBr (M4) or downstream using tap
Ø9. The pressure rises by 1 mbar by
making the screw rotate four times in
a cw direction arrow + and vice versa.
The pressure setting delivers the
required flow rate.
Do not modify the controller setting
again.
Setting the progressive rate
This hydraulic brake function acts on the
ignition flow rate and the first stage flow
rate.
• Unscrew plastic stopper B.
• Turn it around and use it as a spanner.
The setting has a 3-turn stroke.
• Rotate it in the direction of the :
arrow - : the progressive rate will
increase
arrow + : the progressive rate will
decrease.
Particular case
Nominal flow stage setting
This is necessary only if the flow stage
read under a pressure of 4 mbar on the
controller is too high.
Do as follows:
• loosen the locking screw avoiding to
touch the opposite painted screw.
Plug C has a 4.5-turn travel length.
• Make the screw rotate in a cw direction
arrow - :
the flow stage decreases and vice
versa.
It might be necessary to adjust the
pressure.
• Tighten the locking screw.
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