5893
8
ADJUSTMENT OF THE AIR DAMPER MOTOR
STOP - Blue lever
This lever leaves the factory vertically positioned and
corresponds to the complete closing of the air damp-
er.
A partial opening of the air damper might be obtained
by moving leftwards this lever (+ on the label).
The new position the air damper is detectable when
the burner is off. Do not overcome the position of the
orange lever for the 1
st
stage.
1st STAGE - Orange lever
The orange lever controls the air damper position for the first flame, it is adjustable both for opening and clos-
ing.
2nd STAGE - Red and black levers
The red lever controls the air damper position for the second flame, it is adjustable both for closing and open-
ing.
The black lever controls the opening of the second oil valve and it must always anticipate - for a bit - the red
lever, but never the orange one.
BURNER START-UP PROGRAM
Motor lock-out
It is caused by the motor overload relay if overload occurs or no phase.
Reset: push the buttons 7) and 8) fig. 1.
Black lever
Red lever
Orange lever
Blue lever
Opening
+
Thermostat
Motor
Ignition transformer
1
st
flame valve
2
nd
flame valve
Lock-out lamp
Lock-out because
no ignition
Normal
D2894
-
Closing
