elco VL 2.120 D, Руководство по эксплуатации

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11/2010 - Art. Nr. 4200 1029 8600A 14
Commissioning
Air regulation
Fuel oil pressure regulation
Air regulation
Combustion air is regulated at two
points:
• on the pressure side, by the gap
between the baffle plate and the
burner tube.
• on the vacuum side, by the air flap
driven by servomotor Y10.
The regulation of air in the burner head
affects not only the air flow but also the
mixing zone and the air pressure in the
burner tube. Rotation of setting screw
A
- right: more air
- left: less air
• Adjust dimension
Y in accordance with
the settings table.
Air regulation by air flap
Air is regulated on the vacuum side by
an air flap. This is driven by servomotor
Y10 .
Fuel oil pressure regulation
The fuel oil pressure is adjusted using
fuel oil pressure regulator 8 for the 1st
stage and fuel oil pressure regulator 9
for the 2nd stage. To check the
pressure, connect a R1/8" pressure
gauge to connector 4 .
Turn
- right: to increase the pressure
- left: to reduce the pressure
Checking the vacuum pressure
The vacuum meter for checking
negative pressure must be connected to
point 5 , R1/8". Maximum authorised
vacuum: 0.4 bar. At higher vacuum
pressures, the fuel oil gasifies, which
causes scraping noises in the pump and
risks damaging it.
1 Return connection G 1/4
2 Vacuum connection G 1/4
3 Nozzle supply line
connection
G1/8
4 Pressure gauge connection
5 Vacuum gauge connection
8 Pressure setting, 1st stage
9 Pressure setting, 2nd stage
Y1 Solenoid valve, 1st stage
Y5 Solenoid valve, 2nd stage