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3.5
Burner description
12
29
11
10
31
36
21
32
34
33
47
8
42
46
45
34
1
Combustion head
2
Ignition electrodes
3
Screw for combustion head adjust-
ment
4
Sleeve
5
Air pressure switch
6
Air pressure test point-head
7
Gas pressure test point and head fix-
ing screw
8
Screw securing fan to sleeve
9
Slide bars for opening the burner and
inspecting the combustion head
10 Pump
11 Safety solenoid valve
12 Low fire oil valve
13 Air servomotor
14 UV scanner
15 Gas servomotor
16 Air inlet to fan
17 Gas input connection
18 Boiler mounting flange
19 Flame stability disk
20 Flame inspection window
21 Oil / gas selector switch
22 Fan motor contactor and thermal over-
load with reset button
23 Control box for checking flame and air/
fuel ratio
20027066
Technical description of the burner
9
13
16
17 18
24
15
4
7
43
44
D10464
24 Switch "OFF-ON"
25 Burner terminal strip
26 Minimum oil pressure switch
27 Pump motor
28 Lifting rings
29 High fire oil valve
30 Air pressure switch test point
31 Pump motor capacitor
32 Switch "Local-Remote"
33 Button "alarm silence"
34 Optional holes
35 Alarm predisposition
36 Power
device entry cables
37 Auxiliary fuse
38 Ground terminals
39 RWF55 terminal board
40 Oil/gas ignition transformer
41 Terminl board (oil side)
42 Power ON signal lamp
43 Call for heat lamp
44 Alarm signal lamp
45 Fuel ON lamp
46 Ignition ON lamp
47 RWF55 modulator (with analog output
4-20 mA)
48 Timer module and relay K01
49 Timer module and relay KG1
57
19
55
23
5
56
3
1 2
39
23
35
58
37
6
22
36
supply
and
safety/control
8
GB
14
30
20
28
41
25
26
50 "KG2" relay
51 "K2" relay
52 "K1" relay
53 "K3" relay
54 "K5" relay
55 DIN bar for OCI 412.10 device or
accessory/optional
56 DIN bar for fuse holder step-down
trasformer or accessory/optional
57 Operator panel with LCD display and
lock-out reset button
58 "X4" terminal strip accessory/optional
59 Fan motor
Two types of burner failure may occur:
–
Flame safeguard lock-out
If the alarm signal lamp in "ON"
44)(Fig. 2) lights up, it indicates that the
burner is in lock-out. To reset, press the
reset pushbutton 57).
–
Motor trip
Release by pressing the pushbutton on
thermal overload 22)(Fig. 2).
40
48
49
50
51
52
53
54
27
28
59
38
Fig. 2
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