Riello RLS 70 - Servomotor Adjustment for Air Damper Control

33
20168481
GB
Start-up, calibration and operation of the burner
6.9 Servomotor adjustment
The servomotor (Fig. 38) adjusts the air damper.
Do not alter (for the moment) the factory setting for the 4 levers.
A graduated label with 4 coloured sectors shows the intervention
point of the levers.
It is equipped with 4 levers:
Summarising, the lever must intervene according to the following
sequence:
1° Blue lever
2° Orange lever
3° Black lever
4° Red lever
BLUE LEVER:
It adjusts the position of the air damper with
the burner at rest: air damper closed.
ORANGE LEVER:
It adjusts the position of the air damper with
the burner operating in 1st stage.
RED LEVER:
It adjusts the position of the air damper with
the burner operating in 2nd stage.
BLACK LEVER:
Determines when the 2nd stage gas or light oil
valve opens.
It must always intervene (slightly) before the
red lever and after the orange lever.
It must not intervene with the red lever, to
prevent the gas or light oil valve from not
opening at all.
It must not intervene immediately after the
orange lever, to prevent a combustion with an
air defect.
To approach the moment of the gas or light oil
valve opening at the damper 2nd stage
position, turn the black lever toward the left; to
postpone the moment of the opening, turn the
lever toward the right.
Fig. 38
D1195
BLACK
RED
ORANGE
BLUE