8
6. PRIMING THE PUMP
In case of a gravity feed system, from the bottom of the oil-storage tank (see page 4), loosen the screw of the
suction-gauge fixing point 3 (Fig. 1), until the fuel flows out.
In the other two cases, start the burner and bleed the air from the pressure gauge connection by loosening
plug 4 (Fig. 1).
Do not illuminate the photoresistance as this would cause an immediate lock-out.
If, during these operations, the burner locks out, reset it and repeat the cycle as many times as necessary.
CAUTION!
Check, before starting the burner, that the return line to the oil-storage tank is not in any way obstructed.
Any obstruction would cause the breakage of the pump seals.
7. BURNER START-UP CYCLE
NORMAL
LOCK-OUT BECAUSE NO IGNITION
THERMOSTAT
MOTOR
IGNITION TRANSFORMER
1
st
VALVE
2
nd
VALVE
LOCK-OUT LAMP
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