Gas pressure diagrams in appendix
Minimum gas pressure required are
indicated in the diagrams in the appendix.
These values have been determined in
our test labs and are useful for the first
switch-on as final setting must be done
using a combustion analyzer.
How to read and adjust the values:
- determine the output required
- determine the combustion chamber back-
pressure
- read the minimum gas pressure required
in the diagrams in appendix.
Optimising combustion values
The factory setting shall be modified
according to the output requeired.
The diagrams of air/head setting
that are available in the appendix
of this manual are a guide for ensuring
that the burner functions as well as
possible.
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.
Adjustment of gas solenoid valve
Refer to the gas train manual for the gas
setting of the gas train selected.
head gas pressure (on elbow) (mbar)
head position
air damper position
Warning
: the pre-calibration values have
been determined on EN676 test combu-
stion chambers in ideal conditions, and
are useful for the first switch-on but must
be checked and corrected with calibration
for the individual system.
Example in figure
:
Power required by the generator: 380 kW.
Pressure envisaged in combustion cham-
ber: 3.5 mbar. Combustion head chamber:
2.5 (between 2 and 3). Gas pressure in
head: 13 mbar.
pressure in the combustion chamber (mbar)
output (kW)
-1,0
0,0
1,0
2,0
3,0
4,0
5,0
6,0
7,0
8,0
9,0
10,0
50 100 150 200 250 300 350 400 450 500 550 600
16
15
14
13
12,5
12
11,5
1
90°
2
90°
3
90°
4
90°
5
90°
EXAMPLE OF PRE-CALIBRATION MAX GAS 500 PR
Start up
- Adjusting burner output
!
Risk of air blast!
Continuously check CO, CO2 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.
Firing head setting (B).
To act on the screw in fi gure:
• turn Allen key till you reach the
requested value (index 1-5).
+
-
1
1
L
I
A
T
E
D
B
420010537501
EN
www.ecoflam-burners.com
12
Adjusting the maximum air flow rate
Air and Gas adjustment are accomplished
through BT3XX parameters setting. Refer
to BT3XX manual attached.
Adjusting the minimum capacity of the
burner
Air and Gas adjustment are accomplished
through BT3XX parameters setting. Refer
to BT3XX manual attached.
Adjusting the intermediate capacity of
the burner
Gas adjustment is accomplished through
BT3XX parameters setting. Refer to
BT3XX manual attached.
