Unigas RG1025, Manual Of Installation, Use And Maintenance

Page: 5 / 40

C.I.B. UNIGAS - M039144CD
5
GENERAL FEATURES
This series represents monobloc burners made in die-cast aluminium housing with relative flange to work on heating generators. The
output range is from 2550kW to 13000kW (according to models). They can be provided in progressive or fully-modulating version.
Fig. 1
1 Control panel
2 Electrical panel
3 Pump
4 Burner flange
5 Blast tube-combustion head
6 Burner cover
7 Oil pressure governor
8 Adjusting cam
9 Actuator
10 Air inlet
11 Air pressure switch
12 Gun and head adjusting ring nut
The fuel coming from the supply line, is pushed by the pump (11) to the nozzle and then into the combustion chamber, where the mix-
ture between fuel and air takes place and consequently the flame.
In the burners, the mixture bertween fuel and air, to perform clean and efficient combustion, is activated by atomisation of oil into very
small particles. This process is achieved making pressurised oil passing through the nozzle.
The pump (11) main function is to transfer oil from the tank to the nozzle in the desired quantity and pressure. To adjust this pressure,
pumps are provided with a pressure regulator (except for some models for which a separate regulating valve is provided). Other pumps
are provided with two pressure regulators: one for the high and one for low pressure (in double-stage systems with one nozzle).
In the double-stage burners, the electric servocontrol (12), that moves the air damper, allows the optimisation of the gas flue values, as
to get an efficient combustion. The position of the combustion head determines the burner’s output. The air (comburent) and fuel (light
oil) are forced into the combustion chamber, as to let the flame light up.
PART I: INSTALLATION
10
11
5
7
6
4
3 2 1
8
9
12