Ecoflam MAX GAS 70 P AB Mode D'emploi page 9

ADJUSTING THE AIR PRESSURE SWITCH
The air pressure switch must be adjusted so that an insufficient air flow does not allow
the CO value to exceed 1% in volume. After having adjusted the gas flow and obtained
optimum combustion (CO
pressure switch must be adjusted. Remove the cover with the burner operating, cover
the air intake progressively with a piece of cardboard to obtain a value of CO
(G20-G25)> 13 (G30-G31) and a CO value of less than 5,000 ppm. Adjust the air
pressure switch until the burner shuts down. Remove the cardboard from the air intake
and start up the burner again. Replace the cover.
ADJUSTING THE GAS PRESSURE SWITCH
Adjust the pressure switch to 50% of the rated pressure of the gas used.
RARED PRESSURE:
With the burner switched off, connect a DC microammeter with a 0÷50 or 0÷100 µA dial. When the burner is
running, and is properly adjusted, the value read must be steady and never be smaller than 3 µA(Landis).
= 9.5 to 9.8% and a CO value of less than 75 ppm), the air
2
G 20 = 20 mbar
G 25 = 25 mbar
G 30 = 29 mbar
G 31 = 37 mbar
SETTING THE FIRING HEAD
AIR SERVOMOTOR ( SIEMENS SQN 75 )
Remove cover to enter the adjusting cams. Adjust cams through the suitable key (on issue) and
a screwdriver.
I - Adjusting cam (BLUE) for air damper position on burner's shutdown
(total close 0°).
II - Adjusting cam (ORANGE) for opening position in ignition and Low Flame
(by the screwdriver).
III - Adjusting cam (RED) for opening position in High Flame (max. output).
IV - Adjusting cam (BLACK) to allow the opening of High flame solenoid valve.
FLAME DETECTION SYSTEM CHECK
= 10.8
2
1
min. 3 µA
ANDIS
GB 21 / GB 22
pag.9
LB 1504 Max Gas 70-105-120 P AB
A
B
C
D
GB