Table of Contents
Advertisement
Available languages
Available languages
5.4
Servomotor adjustment (SQM 40)
The servomotor (Fig. 25) adjusts at the same time by means of re-
turns, flow and air pressure, and the fuel flow in use. Completes a
rotation of 90° in 30 s. After the adjustment made in the factory to
its 6 cams to allow an initial ignition.
Check that they are as shown below.
In the event of a modification, follow what is described below for
each cam:
Cam I
(RED): 135° (The same for all models)
Limits the rotation towards the maximum.
Do not make any adjustments.
DANGER
Cam II
(BLUE): 0° (The same for all models)
Limits the rotation towards the minimum.
With the burner switched off, the air damper is
completely closed: 0 °
It is recommended that no adjustments are made.
WARNING
Cam III
(ORANGE): 20° (The same for all models)
Adjusts the position of ignition and minimum
output of fuel 1 (for single fuel burners).
Cam IV
(YELLOW): 130° (The same for all models)
Adjusts the position of maximum output of fuel 1
(for single fuel burners).
Cam V
(BLACK): not used
Cam VI
(GREEN): not used
5
CHAPTER
Preparation for start up
Fig. 25
20074577
19
Advertisement
Chapters
Table of Contents
