Positioning The Revolution Sensor - Riello 3898350 Installation, Use And Maintenance Instructions

Combustion
If the combustion values found at the start of the intervention do
not satisfy current standards or anyway indicate a poor state of
combustion (consult the Tab. K), contact the Technical Assis-
tance Service for the necessary adjustments.
7.2.3

Positioning the revolution sensor

In the event the revolution sensor is malfunction-
ing or needs replacing, check/reset its position in-
side the fan motor cover.
WARNING
To adjust, proceed as follows:
 loosen the screws 3) and rest the sensor against the plate of
the disc 2);
 referring to the scale 4) draw back the revolution sensor by
about a notch so that there is a distance of about 2 mm from
the disc plate 2).
Key (Fig. 32)
1 Motor revolution sensor
2 Disc
3 Screw
4 Scale
Maintenance
EN 676
Theoretical
max. CO
GAS
0 % O
G 20 11.7
G 25 11.5
G 30 14.0
G 31 13.7
29 GB
Air excess
Max. output Max. output
  1.2   1.3
CO % Calibration
2
2
 = 1.3
 = 1.2
2
9.7
9.5
11.6 10.7
11.4 10.5
20087860
CO
mg/kWh
 1000
9
 1000
8.8
 1000
 1000
Tab. K
Fig. 32
20041914