2044
7
GB
AIR DAMPER ADJUSTMENT
The air damper (1) is operated by the motor (2) and
assures that the air damper is fully open before the
burner start cycle begins .
The regulation of the air plate is made by adjusting
the disc (3) after releasing the screws (4).
When optimum setting is reached, tighten the
screws (4), the air damper leaves the factory set at
position 3.
COMBUSTION-HEAD ADJUSTMENT
Loose the screw (A), move the elbow (B) so that the
rear plan of the coupling (C) coincides with the set
point. Tight the screw (A).
Example:
The burner is installed on a 40 kW boiler with an effi-
ciency of 90%, the burner input is about 44 kW using
the diagram below, the combustion set point is 3.
The diagram is to be used only for initial settings, to improve air pressure switch operation or
improve combustion, it may be necessary to reduce this setting
(set point toward position 0).
4
1
4
3
2
D5036
S7015
C
A
B
0
2
1
3
4
70
50
40
30
20
10
60
40,000
50,000
30,000
20,000
10,000
kcal/h
kW
N
°
set point
D5137
60,000
5
44
