Burner Description - Riello RLS 70 Installation, Use And Maintenance Instructions

4.10

Burner description

1 Combustion head
2 Ignition electrodes
3 Screw for combustion head adjustment
4 Pipe coupling
5 Screws to secure fan to pipe coupling
6 Fan motor
7 Flame stability disc
8 Boiler fixing flange
9 Gas input pipe
10 Pump
11 Air inlet to fan
12 Control box with lockout pilot light and reset button
13 Flame inspection window
14 Air damper
15 Slide bars for opening the burner and inspecting the
combustion head
16 Safety valve
17 1st and 2nd 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 damper is fully
closed in order to reduce heat dispersion from the boiler
due to the flue draught which draws air from the fan suction
inlet.
21 Pump motor
Technical description of the burner
20 21 14 11
6
12
13 15
5
9
10
4 3
18 19
17
16
Two types of burner lockout may occur:
CONTROL BOX LOCKOUT:
if the control box 12)(Fig. 4) push-button lights up, it indicates that
the burner is in lockout.
Press the push-button to reset.
MOTOR LOCKOUT:
release by pressing the push-button on thermal relay.
13 GB
20164424
8 7
2 1
Fig. 4
20148653