Air Adjustment - Ecoflam Multicalor 70 Mode D'emploi

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ADJUSTING THE MAXIMUM CAPACITY OF THE BURNER
Position the selector, situated on the control panel, on position maximum power and proceed as follows:
Adjusting the maximum gas flow rate: - proceed as stated in the regulating the solenoid valves until you achieve the
correct gas flow, as established by analyzing the combustion process. Eventually adjust the gas flow rate using a suitable
allen wrench, alter the position of the cam(3) guide blade; if you screw it down, the flow rate is reduced; if you unscrew
it, the flow rate increases.
Adjusting the maximum air flow rate: Eventually adjust this position acting on the screw "1 ", after loosening nut " 2
". "2"
Tighten the nut in place once again
ADJUSTING THE MINIMUM CAPACITY OF THE BURNER
Position the selector, situated on the control panel, on position minimum power and proceed as follows:
Adjusting the minimum gas flow rate: using a suitable Allen wrench, alter the position of the cam(3) guide blade; if
you screw it down, the flow rate is reduced; if you unscrew it, the flow rate increases.
Adjusting the minimum air flow rate: adjust on limit switch for air damper "Low Flame" position adjustment.
ADJUSTING THE INTERMEDIATE BURNER CAPACITIES
Using the selector, start the servomotor (closing or opening) and position on 0 to stop the stroke; the adjustment is
made as outlined below. Repeat the operation for the other cam points.
Adjusting the intermediate gas flow rates: using a suitable Allen wrench, alter the position of the cam(3) guide blade; if
you screw it down, the flow rate is reduced; if you unscrew it, the flow rate increases.
WORKING OF THE BURNER WITH LIGHT-OIL FUEL
Once having installed the burner, check the following items:
- The burner power feeding and the main line protection fuses
- The correct length of pipes and that the same are sealed.
- The type of fuel, which must be suitable for burner.
- The connection of boiler's thermostats and all the safeties.
- The motor rotation direction.
- The correct calibration of the motor's thermal protection.
When all the above mentioned conditions are checked and accomplished, it is possible to go on with burner's tests.
Power the burner. The control box feeds the ignition transformer and the burner's motor at the
same time, which will run a prepurging of the combustion chamber for about 20 sec.
At the end of prepurging, the control box opens solenoid valves and the burner starts. After a
safety interval of 5 seconds and a correct ignition, the control box turns off the ignition tran-
sformer and, 10 seconds later, sets the motorised air damper to its maximum opening (High
flame). In case of faulty ignition, the control box switches the burner into safety condition
within 5 second. In such a case, the manual rearming of the burner shall not take place before 30 seconds have elapsed
from the burner's safety shutdown. In order to obtain an optimal combustion, it is necessary adjust the LOW - HIGH
flame air flow, according to the instruction given further on. During such a phase, it will be possible to manually switch
between HIGH and LOW flame and viceversa, through the High/Low flame switch. At the end of the adjusting phase,
leave the switch in position AUTO.

AIR ADJUSTMENT

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420010922100 Multicalor 70 ÷ 140 PR/AB
SELECTOR
3
AUTO
0
0 = operating elements locked
in an intermediate position
= operation on maximum capacity
= operation on minimum capacity
AUTO = automatic operation
0 - STOP
LIGHT-OIL
1 - GASOLIO
2 - GAS
EN
2
1
0