Burner Description - Riello RS 120/EV BLU Installation, Use And Maintenance Instructions

3.9

Burner description

38
50
12
11
10
9
23
42
24
27
32
33 34
40
1 Combustion head
2 Burner pilot
3 Screw for combustion head adjustment
4 Maximum gas pressure switch
5 Burner pilot attachment
6 Gas actuator
7 Ignition electrode
8 "KMV" relay
9 Lifting ring
10 Burner terminal board for electrical wiring "X1"
11 Operator panel with LCD display
12 Control box for checking flame and air/fuel ratio
13 Auxiliary fuse
14 Signal "CALL FOR HEAT"
15 UV flame sensor
16 Ignition transformer "TA"
17 Holes for cable grommets for electrical wiring for accesso-
ries(to be carried out by the installer)
18 Air actuator
19 Air pressure switch
20 Sliding bars for opening the burner and inspecting the com-
bustion head
21 Gas pressure test point and head fixing screw
22 Combustion head air pressure test point
23 Extension sliding bars
24 Switch "OFF - ON"
25 Fan air inlet
26 Screws to secure fan to pipe coupling
27 Switch "LOCAL REMOTE"
28 Gas butterfly valve
29 Boiler fixing flange
Technical description of the burner
3
21 1
5
20
14 35 40 36 13
7
30
2
29
22
6
49
26
18
19
42 17
25
41
45 46 47
9
52
23
30 Flame stability disc
31 Horn
32 Button "ALARM SILENCE"
33 Signal "POWER ON"
34 Signal "IGNITION ON"
35 Signal "FUEL ON"
36 Signal "ALARM ON"
37 RWF55 modulator (with anolog output 4-20 mA)
38 Hight voltage lead
39 Din bar for "K7" relay and available for accessories
40 Optional holes
41 Din bar for fuse holder step-down transformer and OCI 412.10
42 Ground terminals
43 Din bar for "KMV" relay and available for accessories
44 Fan motor
45 "K1" relay
46 "K5" relay
47 "K3" relay
48 "K2" relay
49 Gas train flange
50 Air pressure switch test point
51 Variable speed sensor
52 Clamp for shielding of connection cable with inverter
53 "K7" relay
One type of burner failure may occur:
 Flame safeguard lock-out: if the flame safeguard alarm
36)(Fig. 5) lights up, it indicates that the burner is in lock-out.
To reset, press the reset pushbutton.
11 GB
4 16 43
28 51 15 44
20102981
48 37 31 39 53
8
17
Fig. 5
20102152