4.9
Burner description
1
Lifting eyebolts
2
Fan
3
Fan motor
4
Air gate valve servomotor
5
Gas pressure test point
6
Combustion head
7
Ignition pilot
8
Flame stability disk
9
Electric panel board - cover
10 Hinge for opening burner
11 Air inlet to fan
12 Manifold
13 Thermal insulation screen for securing burner to boiler
14 Gas train flange
15 Shutter
16 Lever for movement of combustion head
17 Gears for movement of air damper
18 Air pressure switch (differential operating type)
19 Air pressure test point
20 Maximum gas pressure switch with pressure test point
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Technical description of the burner
1 17 29 28 1 16 19
9
11
20
26 30
7
13
12
5
D9223
10
11
6
15
27
14
24
21 4 18 22
23
2 3
21 QRI flame sensor
22 Air pressure test point pressure test point "+"
23 Oil modulator and gas butterfly valve servomotor
24 Pump
25 Pump motor
26 Minimum oil pressure switch
27 Maximum oil pressure switch
28 Pressure gauge for pressure on nozzle return
29 Nozzle delivery pressure gauge
30 Oil modulator
The burner can be opened either on the right or
left sides, irrespective of the side from which fuel
is supplied.
CAUTION
When the burner is closed, the hinge can be re-
positioned on the opposite side.
GB
7
8
25
Fig. 4
20010309