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Adjusting the maximum capacity of the
burner
Position the selector, situated on the con-
trol panel, on position maximum power
and proceed as follows:
Adjusting the maximum gas flow rate:
- proceed as stated in the regulating the
solenoid valves until you achieve the cor-
rect gas flow, as established by analyzing
the combustion process. Eventually adjust
the gas flow rate using a suitable allen
wrench, alter the position of the cam(3)
guide blade; if you screw it down, the flow
rate is reduced; if you unscrew it, the flow
rate increases.
Adjusting the maximum air flow rate: Even-
tually adjust this position acting on the
screw "1 ", after loosening nut " 2 ". Ti-
ghten the nut "2" in place once again.
Adjusting the manimum capacity of the
burner
Position the selector, situated on the con-
trol panel, on position minimum power and
proceed as follows:
Adjusting the minimum gas flow rate:
using a suitable Allen wrench, alter the po-
sition of the cam(3) guide blade; if you
screw it down, the flow rate is reduced; if
you unscrew it, the flow rate increases.
Adjusting the minimum air flow rate: ad-
just on limit switch for air damper "Low
Flame" position adjustment.
Adjusting the intermediate capacity of
the burner
Using the selector, start the servomotor
(closing or opening) and position on 0 to
stop the stroke; the adjustment is made as
outlined below. Repeat the operation for
the other cam points.
Adjusting the intermediate gas flow rates:
using a suitable Allen wrench, alter the po-
sition of the cam(3) guide blade; if you
screw it down, the flow rate is reduced; if
you unscrew it, the flow rate increases.
!
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.ecoflam-burners.com
B
2
Firing head setting (B).
Execution :
• loosen the locking screw of adjusting de-
vice A.
• move the adjusting device until the desired
position is reached.
• tighten the locking screw.
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.
Servomotor SQN 30 251A2700
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 for air damper "High
Flame" position adjustment (Max. power).
II
- Limit switch for the air damper posi-
tion at burner's shut down.
III - Limit switch for air damper "Low
Flame" position adjustment (Min. power).
V
- Limit switch not used.
(5): MANUAL RELEASE SWITCH
C
3
SELECTOR
AUTO
0
0 = operating elements locked
in an intermediate position
= operation on maximum capacity
= operation on minimum capacity
AUTO = automatic operation
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