Ecoflam Multicalor 45 Manual De Instrucciones página 18

420010239602 Multicalor 45 ÷ 140 PR/PR
EN
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 transformer and, 10 seconds later, sets the motori-
sed 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 adju-
st the LOW - HIGH flame air flow, according to the instruction given further on. During such a phase, it will be possi-
ble 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.
The diagram illustrates the fuel feeding system of these types of burners, which incorporates a by-
pass nozzle with oil flow regulation on its return pipe. The oil supply is varied by acting on the nozz-
le through the pressure in the return line. Max. oil supply is therefore reached when the pressure in
the pump line is about 20-21 bar and the return line is fully closed; min. oil supply when the
return line is fully open. Relevant pressure readings in the return line are as follows:
Pump pressure 20-21 bar.
Max Burner output, return oil pressure:
MONARCH BPS
Min Burner output, return oil pressure:
MONARCH BPS
The adjustment of the com-
bustion head position is car-
ried out in order to obtain the
best combustion efficiency.
When installed for small out-
put operations, the head shall be adjusted back.
For maximum operation the position is fully forward. Steps: loosen the locking screw of A lever. Move the lever to the
needed position. Tighten back the locking screw.
WORKING OF THE BURNER WITH LIGHT-OIL FUEL
OIL DELIVERY ADJUSTMENT
8 ÷12 bar
nozzle : .
nozzle : 1÷4 bar
ADJUSTING THE FIRING HEAD
A
min. max.
A
MULTICALOR
45-70-100
18
1
0 - STOP
LIGHT-OIL
1 - GASOLIO
0
2 - GAS
min. max.
A
MULTICALOR
140
2