Start Up Adjusting Burner Output - Ecoflam BLU 700.1 LN PAB Mode D'emploi

EN
Start up
­ Adjusting burner output
A
1
NB: burner regulation must always be
carried out using the combustion analy­
sis tool.
"PAB" VERSION GAS BURNERS GAS
TRAIN INSTALLATION AND SETTING
INSTRUCTIONS
Fix the gas train to burner body by means
of the 4 screws of the flange, pay attention
to set correctly the gasket ( O-ring ).
Connect electrically the gas train with the
6 pole plug.
Switch on the burner (it has already been
tested in the factory, so it is pre set on ave-
rage values) and verify the tightness of
gas train connections made during installa-
tion.
Act as follows to adapt the burner output to
the boiler.
HIGH FLAME
1. Bring the burner in high flame , air inlet
must be set at 75 ° (maximum opening po-
sition).
To adjust air capacity operate on the com-
bustion head position.
Just in peculiar case it is necessary to re-
duce the air flow in high flame closing air
intake damper.
2. The position of gas butterfly valve must
be lower then 90° ( typically 85°. It is im-
portant not get over 90° to obtain a per-
fect combustion during passage from high
to low flame). Eventually adjust this posi-
tion acting on the screw "1 ", after loose-
ning nut " 2 ".
3. Regulate gas capacity in high flame
through the gas governor, or operate on
the adjustable gas valve.
LOW FLAME
4. Choose the first stage position on the
servocontrol ( normally between 10° - 30°)
on the basis of the reduced charge output
required and switch the burner to low
!
Risk of air blast!
Continuously check CO, CO 2 and soot emissions when adjusting the output of the burner. Optimise combustion values in the
event of CO formation. CO must not exceed 50 ppm.
12 www.ecoflam­burners.com
B
4
2
flame.
5. Regulate gas capacity, to obtain optimal
combustion, changing the position of the
gas valve disc, act on screw " 3 ", after loo-
sen nut " 4 ".
Final operations
6. Bring the burner in high flame again, if
necessary adjust again gas flow (as shown
in point n.2).
7. If necessary repeat operations descri-
bed on point n. 5 and n. 6 until You obtain
the exact position of the gas flow both in
high and low flame.
8. Fix the nuts.
Firing head setting (C).
Execution :
• Loosen the locking screw of adjusting de-
vice V.
• Move the adjusting device until the desired
position is reached.
• Tighten the locking screw.
Servomotor SQN72.2A4A20
Remove cover to gain access to the adju-
sting cams.The cams are to be adjusted
through the suitable key provided for. De-
scription:
I - Limit switch (Red) for air damper
"High Flame" position adjustment
(Max. power).
II - Limit switch (Blu) for the air damper
position at burner's shut down.
III- Limit switch (Orange) for air damper
"Low Flame" position adjustment
(Min. power).
IV- Limit switch (Black) not used.
(5): MANUAL RELEASE SWITCH
C
3
Adjustment of gas solenoid valve
Refer to the gas train manual for the gas
setting of the gas train selected.
N.B. observe the minimum required
flue gas temperature specified by the
boiler manufacturer and the requirements
demanded of flue gas ducts for avoiding
condensation.
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