Setting Of The Air Damper Servomotor - Riello Gulliver BS3/M TXL Installation, Use And Maintenance Instructions

A
For the burner to operate over 140 kW, you must remove the
blank deadening to free the supplementary slits of the air inlet on
the cover, as illustrated in figure 10.

4.3 SETTING OF THE AIR DAMPER SERVOMOTOR,

STAND-BY
FIRST STAGE
SECOND STAGE
The servomotor only follows adjustment of CAM III when the cam's angle is reduced.
If the cam's angle needs increasing, you must first increase the servomotor angle with the "increase output (+)"
key, then increase the angle of CAM III and, lastly, return the servomotor to the MIN output position with the "de-
crease output (-)" key.
Where necessary, CAM III can be adjusted by removing cover (1), which is snapped on, as illustrated in fig. 12,
removing the relevant key (2) from inside, and inserting it in the slot on CAM III.
Fig. 12
20050873
CAM II
CAM II assures the fully closed position of the air
damper, when the burner is shut down (stand by).
It is adjusted by the factory at 0°. DO NOT ALTER.
CAM III
CAM III adjusts the air damper for the ignition and
for the minimum output. It can be adjusted whilst it
is being put into service. CAM IV is integral with
CAM III.
CAM I
CAM I regulates the position of the air damper
when the burner is working at maximum output,
and must be used to limit the burner delivery
(adapting it to the boiler delivery). It is factory-regu-
lated at 90°.
Fig. 10
(see fig. 11)
11 GB
S7025
Fig. 11
D4438
D4439