Unigas P91A, Manual Of Installation - Use - Maintenance

Page: 5 / 105

PART I: SPECIFICATIONS
5
GENERAL FEATURES
Gas operation: the gas coming from the supply line passes through filter, gas valves and pressure regulator. This one forces the pres-
sure in the utilisation limits. The electric actuator , that moves proportionally the air damper and the gas butterfly valve, uses an adju-
sting cam with variable shape. This one allows the optimisation of the gas flue values, as to get an efficient combustion. The
combustion head positioning determines the burner’s output. The combustion head determines the energetic quality and the geometry
of the flame. Fuel and comburent are routed into separated ways as far as the zone of flame generation (combustion chamber).
The control panel , placed on the burner’s front side, shows each operating stage.
PART I: SPECIFICATIONS
1
9
8
10
4
6
5
3
2
7
11
Note: the figure is indicative only
1
Control panel with startup switch
2 Gas train
3 Electrical panel
4 Cover
5 Blast tube + Combustion head
6 Flange
7 Silencer
8 Adjusting cam
9 Actuator
10 Air pressure switch
11 Combustion head adjusting ring nut