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Ecoflam BLU 500.1 LN PR TC MET.SR 230/400/50 Mode D'emploi page 13

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  • FRANÇAIS, page 26
Air pressure switch calibration
The air pressure switch is provided for
monitoring the pressure of the
combustion air fan.
Unscrew screws A and B and remove
cover C.
After the air and gas setting you have to
calibrate the air switch with the burner
working on the low flame by slowly turning
the relative knob clockwise until the burner
locks out. Read the value and then
decrease it by 15%.
Min gas pressure switch
The gas pressure switch has the function
to check that the gas pressure before the
gas valve does have the minimum
pressure to make the burner running
correctly.
Unscrew off and remove cover M.
- Set knob N to a value equal to 60% of
gas nominal feed pressure (i.e. for natural
gas nom. pressure = 20 mbar, set knob to
a value of 12 mbar; for LPG nom. pressure
of G30/G31- 30/37 mbar, set knob to a
value of 18 mbar). Screw up cover M.
Servomotor SQN 30 151A2700
Final setting
Once the point to point gas cam setting
has been completed we need to set
the final minimum output of the burner
using the servomotor cam III (low flame
gas). Using the suitable key regulate the
grades ("+/-" switch).
Turn the burner off and start it again in
order to check if the burner start properly
otherwise adjust the ignition gas cam
number III.
!
WARNING: Do not use the button cam drum release button.
420010298903
WARNING: the air pressure switch shall
prevent the air pressure to go below 85%
from the adjustment value in order to
prevent the CO in the fumes to exceed 1%
(10000 ppm).
Gas setting ended:
switch the selector to automatic position.
C
A
B
M
I
L
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EN
D
N
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