Burner Description - Riello RLS 100 Installation, Use And Maintenance Instructions

4.11

Burner description

1 Combustion head
2 Ignition electrodes
3 Screw for combustion head adjustment
4 Sleeve
5 Relay
6 Fan motor
7 Motor contactor and thermal cut-out with reset button
8 LED PANEL
9 Terminal strip
10 Fairleads for electrical connections by installer
11 Two switches:
- one "burner off - on"
st nd
- one for "1 - 2 stage"
12 Control box with lock-out pilot light and lock-out reset button
13 Flame inspection window
14 Minimum air pressure switch (differential operating type)
15 Slide bars for opening the burner and inspecting the com-
bustion head
16 Safety solenoid valve
st nd
17 1 and 2 stage valves
18 Gas pressure test point and head fixing screw
19 Air pressure test point
20 Servomotor.
When the burner is not operating the air gate valve is fully
closed in order to reduce to a minimum heat dispersion from
the boiler due to the flue draught which draws air from the
fan suction inlet.
21 Pump motor
22 Air gate valve
23 Air inlet to fan
24 Pump
25 Gas input pipework
26 Boiler mounting flange
27 Flame stability disk
28 Screw securing fan to sleeve
29 Cell UV
30 OIL/GAS selector
31 4 pole socket
32 7 pole socket
33 6 pole socket
34 Extensions for slide bars 15)
Two types of burner failure may occur:
Control box lock-out:
if the control box 12) pushbutton lights up, it indicates that the
burner is in lock-out. To reset, press the pushbutton.
Motor trip:
release by pressing the pushbutton on thermal relay 7).
Technical description of the burner
13
GB
30
31
32
33
23
20 22
21
7
9 8
11 12 13 14 5 15
10
29 28
25
24
2
6 34 4 3
19
17 18
16
26 27
1
D11053
Fig. 5
20033295