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Adjustments - brief description
Adjust the air and oil flow rates at the maximum output ("high flame") first, by means of the air damper and the adjusting cam
respectively.
Check that the combustion parameters are in the suggested limits.
Then, adjust the combustion values corresponding to the points between maximum and minimum: set the shape of the adjusting
cam foil. The adjusting cam sets the air/fuel ratio in those points, regulating the opening-closing of the fuel governor.
Now set the low flame output, acting on the low flame microswitch of the actuator (cam III) in order to avoid the low flame output
increasing too much or the flues temperature getting too low to cause condensation in the chimney.
Oil Flow Rate Settings
1
With the electrical panel open, prime the oil pump acting directly on the related contactor CP (see next picture): check the pump
motor rotation (see "Fan motor and pump motor direction" on page 13) and keep pressing for some seconds until the oil circuit is
charged;
2
bleed the air from the SA port by loosing the cap T without removing it, then release the contactor and fasten cap T.
3
Before starting the burner up, drive the high flame actuator microswitch matching the low flame one (in order to let the burner ope-
rates at the lowest output) to safely achieve the high flame stage.
4
Turn the burner on by means of its main switch A (see next picture): if the burner locks (LED B on in the control panel) press the
RESET button (C) on the control panel - see chapter "OPERATION".
5
Start the burner up by means of the thermostat series (terminals 3 and 4 - see wiring diagrams) and wait unitl the pre-purge phase
comes to end and that burner starts up;
6
drive the burner to high flame stage, by means fo the thermostat TAB (high/low flame thermostat - see Wiring diagrams), as far as
fully-modulating burners, see related paragraph.
Then move progressively the microswitch to higher values until it reaches the high flame position; always check the combustion values
(see next steps).
MAN
AUTO
Siemens SQM10
C.I.B. UNIGAS - M039126CE
SA
I
II
III IV
MAN-AUTO
CP
T
mensions
Dimensions in
VI
VI
SQM4...
V
V
IV
IV
III
III
II
II
I
I
Siemens SQM40
28
Actuator cams
I
High flame
II
Stand-by and Ignition
III
Low flame
IV
Stroke limitation
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