Avanzini DRAGO D1/M, Instruction, Use And Maintenance Manual

Page: 69 / 104

CHAPTER 6
Instructions, use and maintenance manual
Page 69
6.2.5. AIR ADJUSTMENT
Primary air is not only subject to the adjustment of the gate, but also to the chimney draught and the gas pressure.
Locate the primary air regulator at the base of the torch.
The sticker features a series of numerical notches that are merely indicative; you can position the damper in any
intermediate position between the notches.
IMPORTANT!
All burners are adjusted by our technicians before being shipped.
To change the factory settings, carry out the procedure described here below.
or the low ame AIR ADJUSTMENT PROCEDURE , carry out the operations described below:
STEP ACTION PICTURE
1
witch on the ame by means of the rago aby i
control panel.
A
B
D
2 Loosen Allen screw “A” (ø 4mm).
3
Manually operate on partition “B” until the desired air
ow is obtained.
The correct value may be included between pos.2 and
pos.4 of the graduated scale.
4 hec the ame colo r in connection with the air ow.
5
osition partition so that the ame is more yellow
and more luminous as possible, but before it produces
soot on the cupola wall.
In this case, slightly open partition “B” once again.
6
nce the ame ad stment proced re is completed,
tighten the Allen screw “A”.
7
hec the val e indicated by notch on the grad ated
scale “D”.
Below is a list of recommended regulation parameters depending on the gas present in the system:
GAS TYPE PRESS. POS.
METHANE / NATURAL GAS 20 mbar 2 - 4
GPL / LPG 30 mbar 4 - 6
NATURAL GAS 10 mbar 2 - 3
IMPORTANT!
he colo r of the ame indicates the air gas mi ing ratio.
light bl e ame indicates that there is too m ch o ygen.
yellow ame indicates that there is not eno gh o ygen.