Working; Combustion Head Setting - Riello 40 GS10 Installation, Use And Maintenance Instructions

Electrical wiring with gas leak control device (DUNGS VPS 504)
KEY TO LAY-OUT
X6 – 6 pin plug
X7 – 7 pin plug
B4 – Working signal
h1 – Hour counter
PG – Minimum gas pressure switch
– Remote lock-out signal 
S3
(220V - 0.5 A max.)
T6A – Fuse
TL – Limit thermostat
TS – Safety thermostat
V10 – Safety valve
V11 – Adjustment valve
4

Working

4.1

Combustion head setting

Loose the screw (A) Fig. 9.
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 on a 81 kW boiler
with an efficiency of 90%, the burner
input is about 90 kW using the diagram,
the combustion set point is 3.
The diagram (Fig. 10) is to be used only
for initial settings, to improve air pressure
switch operation or improve combustion,
it may be necessary to reduce this set-
ting (set point toward position 0).
TO BE DONE BY
THE INSTALLER
D4199
kcal/h kW
120
100,000
110
90,000
100
80,000
90
70,000
80
70
60,000
60
50,000
50
40,000
40
7 GB
C
A
B
0 1 2
Set point
~
220V 60Hz
S7015
Fig. 9
D5258
3 4 5
Fig. 10
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