Ecoflam MAX GAS 350 PAB Manual Del Usuario página 19

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
EXAMPLE OF PRE-CALIBRATION MAX GAS 500 PAB
10,0
9,0
8,0
7,0
6,0
5,0
4,0
3,0
2,0
1,0
0,0
-1,0
50 100 150
420010489905
- 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.
15 14 13
16
12,5
1 2
90° 90°
200 250 300 350 400
output (kW)
12
11,5
5
90°
4
90°
3
90°
450 500 550 600
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.
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.
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EN
19