Opening The Burner; Access To Head Internal Part; Closing The Burner - Riello 20122858 Installation, Use And Maintenance Instructions

Combustion
In case the combustion values found at the beginning of the inter-
vention do not respect the standards in force or, in any case, do
not correspond to a proper combustion, contact the Technical As-
sistance Service in order to carry out the necessary adjustments.
7.3

Opening the burner

Turn off the burner's power supply using the main
system switch.
DANGER
Turn off the fuel interception tap.
DANGER
Wait for the components in contact with heat
sources to cool down completely.
2
7.4

Closing the burner

Refit following the steps described but in reverse order; refit all
burner components as they were originally assembled.
Maintenance
GAS
G 20
G 25
G 30
G 31
7.3.1
In order to reach inside the combustion head (Fig. 28) proceed as
follows:
➤ After removing the cover 1), disconnect the cables of the
electrode 2) and probe 3) from the combustion head.
➤ Unscrew screw 4) with pressure test point.
➤ Extract the internal part 5) of the combustion head.
1
3
20119319
29 GB
Air excess
EN 676
Max. output.
λ ≤1.2
Theoretical max CO
2
CO
2
λ = 1.2
0 % O
2
11.7 9.7
11.5 9.5
14.0 11.6
13.7 11.4

Access to head internal part

5
4
After carrying out maintenance, cleaning or
checking operations, reassemble the cover and
all the safety and protection devices of the burner.
CO
Max. output.
λ ≤1.3
% Calibration
mg/kWh
λ = 1.3
≤ 1000
9
≤ 1000
8.8
≤ 1000
10.7
≤ 1000
10.5
Tab. K
Fig. 28
20118862