Combustion Head Adjustment; Air Damper Adjustment - Riello GS5 Installation, Use And Maintenance Instructions

COMBUSTION HEAD ADJUSTMENT

Loosen the screw (A), move the elbow (B) so that the
rear plate of the coupling (C) coincides with the set
point.
Tighten the screw (A).
Example:
The burner is installed in a 40 kW boiler.
Considering efficiency of 90% the burner must
supply around 44 kW.
The diagram shows that for this
output the adjustment must be
made on notch 3.
The diagram is to be used only for
initial settings, to improve air pres-
sure switch operation or improve
combustion, it may be necessary to
reduce this setting
toward position 0).

AIR DAMPER ADJUSTMENT

The air damper opening motor (1) controls the damper (6);
the burner does not start until the damper (6) is completely
open.
To adjust the fixed damper (4) it is necessary to:
 loosen the screws (3 and 5) and rotate the damper as
far as the required point (2).
 Once optimum adjustment has been reached, fix the
screws (3 and 5).
The adjustment of the damper varies in each single appli-
cation, so it is necessary to use a calibration tool to obtain
an efficient combustion result.
Important:
It is advisable to carry out an analysis of the combustion
values with the hood assembled.
20013751
kcal/h
60,000
50,000
(set point
40,000
30,000
20,000
10,000
C
A
B
kW
70
60
50
44
40
30
20
10
0 1
2
3
6 GB
2 3 4
D7305
S7015
D5137
5
Set point
1
5
6
4