Ecoflam DUAL 1 Manual De Instrucciones página 19

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Put the switch I/II on the I position to keep the burner at the first stage.
I – Position 1° stage.
II – Position 2° stage and the chance to have the working automatically on 2nd stage, with TAB thermostat.
GAS GASOLIO
2 0 1 2 0
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Turn the switch on the oil "1" position. Connect a pressure gauge to the pump to measure the oil pressure.
Before turning on the burner, be sure that is properly assembled.
Check that the voltage corresponds to the data plate and that the electrical connections are properly made
according to the enclosed wiring diagram. Pay particularly attention to the connection of the phase and the
neutral, as well the earth one. Then bleed the oil pipes, check the pressure is on the showed limits; this check
must be done with an oil pressure gauge in the pressure test point.
Once these checks are made it needs to give power to the burner, move the switch to the oil position and
close the contact of boiler thermostat. Then the control box begins the cycle, it makes the preventilation star-
ting and keeps it for 30 seconds. At the end of preventilation if the consent of the pressure switch is present
the ignition transformer has power. After three seconds from the transformer sparking (preignition time) the
oil valves are fed and three seconds after the ignition the transformer is excluded. Dealing burners with pres-
sure drop oil pumps (dual 3-4-5P) when the transformer is excluded the second stage enters automatically. If
there is no ignition the burner goes in lockout. Once the ignition has been done make the combustion of the
burner through head and air regulations.
CHANGEOVER FROM OIL INTO GAS
GASOLIO
GAS
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1
DUAL 5P
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BY OIL BURNER WORKING
BURNER START UP BY OIL
420010347701 Dual 1-2-3-4-5 P / MC
DUAL 1-2-3-3P-4-4P
Regulate the oil pressure and the airflow at first
stage. The burner will stay at first stage till the swit-
ch will be moved on second stage position. Then the
control box starts the second stage opening the air
damper and the oil pressure must be set at 12-15
bar, on standard condition in the 2nd stage (check
the pressure gauge reading at the pressure point).
Adjust the combustion air with the head setting
screw.
19
EN