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3.4
Burner description
9
42
34
50
8
31
32
43
D11845
1
Combustion head
2
Ignition pilot
3
Screw for combustion head adjustment
4
Sleeve
5
Low air pressure switch
6
Air combustion head pressure test point
7
Gas pressure test point and head fixing screw
8
Screw securing fan to sleeve
9
Slide bars for opening the burner and inspecting the combus-
tion head
10 Signal "Alarm ON"
11 Pilot attachment
12 Ignition transformer "TA"
13 Air actuator
14 UV scanner
15 Plate with four hole knock-outs for electrical cable routing
16 Air inlet to fan
17 Gas input connection
18 Boiler mounting flange
19 Flame stability disk
20 Flame inspection window
21 Button "Alarm Silence"
22 Relay "KMV"
23 Control box for checking flame and air/fuel ratio
24 Switch "Local - Remote"
25 Fan motor
26 Ground terminals
27 Auxiliary fuses
28 Switch "OFF/ON"
29 Signal "Power ON"
30 Lamp Signal "Call for Heat"
31 Signal "Ignition ON"
32 Signal "Fuel ON"
20040438
Technical description of the burner
11
7
4 3
17
16
15
43
28
24
21
41
18
29
30
10
19
44 14 46
20 35
5
49
1
23
45
27
2
40
6
48
47
33 Burner terminal board "X1"
34 RWF40 modulator (with analog output 4-20 mA)
35 Lifting rings
36 Relay "K2"
37 Relay "K1"
38 Relay "K3"
39 Relay "K5"
40 Connector for shielding of inverter cable
41 Gas actuator
42 RWF40 terminal board "X3"
43 Optional holes
44 Operator panel with LCD display
45 Horn
46 Air pressure switch test point
47 Speed sensor
48 Holes for cable grommets for electrical wiring for accessories
(to be carried out by the installer)
49 Speed sensor and inverter terminal board "X70"
50 DIN bar available for accessories (OCI 412.10)
51 Connector for shielding of motor cable
One type of burner failure may occur:
Flame safeguard lock-out
If the alarm signal lamp in "ON" 10)(Fig. 1) lights up, it indi-
cates that the burner is in lock-out. To reset, press the reset
pushbutton.
8
13
12
36
37
39
38
22
51
25
33
26
Fig. 1
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