Safety Components; Opening The Burner; Closing The Burner - Riello 20068219 Installation, Use And Maintenance Instructions

Combustion
If the combustion values measured before starting maintenance
do not comply with applicable legislation or do not indicate effi-
cient combustion, consult the Tab. R or contact our Technical
Support Service to implement the necessary adjustments.
It is advisable to set the burner according to the type of gas used
and following the indications in Tab. R.
EN 676
Max. output
CO
CO theoretic
2
2
GAS
al max. 0% O
λ λ λ λ = 1.2
2
G 20 11.7 9.7
G 25 11.5 9.5
G 30 14.0 11.6
G 31 13.7 11.4
7.3

Opening the burner

Disconnect the electrical supply from the burner
by means of the main system switch.
DANGER
Turn off the fuel interception tap.
DANGER
7.4

Closing the burner

Refit following the steps described in "Access to head internal
part" on page 20, but in reverse order; refit all burner components
as they were originally assembled.
After carrying out maintenance, cleaning or
checking operations, reassemble the cover and
all the safety and protection devices of the burner.
20075006
Air excess
Min. output
λ ≤ λ ≤ 1.2 λ ≤ λ ≤ λ ≤ λ ≤ λ ≤ λ ≤ 1.3
% Calibration
CO
λ λ λ λ = 1.3
mg/kWh mg/kWh
≤ 100
9.0
≤ 100
8.8
≤ 100
10.7
≤ 100
10.5
Maintenance
7.2.3

Safety components

The safety components should be replaced at the end of their life
cycle indicated in the following table.
The specified life cycles do not refer to the warran-
ty terms indicated in the delivery or payment con-
ditions.
WARNING
Safety
component
NO
X
Flame control
≤ 170
Flame sensor
≤ 170
≤ 230
Gas valves (solenoid)
≤ 230
Tab. R
Pressure switches
Pressure adjuster
Servomotor (electronic cam
)(if present)
Oil valve (solenoid)(if pres-
ent)
Oil regulator (if present)
Oil pipes/ couplings
(metallic)(if present)
Flexible hoses (if present)
Fan impeller
Wait for the components in contact with heat
sources to cool down completely.
To open the burner, use the same procedure set out in "Access
to head internal part" on page 20.
36 GB
Life cycle
10 years or 250,000
operation cycles
10 years or 250,000
operation cycles
10 years or 250,000
operation cycles
10 years or 250,000
operation cycles
15 years
10 years or 250,000
operation cycles
10 years or 250,000
operation cycles
10 years or 250,000
operation cycles
10 years
5 years or 30,000
pressurised cycles
10 years or 500,000 start-ups
Tab. S