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CORRELATION BETWEEN GAS PRESSURE AND BURNER OUTPUT
To obtain maximum output, you will need a pressure of 9.3 mbar, for model 916M, measured at the head (M2,
see chapter 4.3, page 7) with the combustion chamber at 0 mbar and using gas G20 with a net heat value of
3
9,45 kWh/m
(8.127 kcal/m
10
8
6
4
2
0
0
D4452
0
3.
INSTALLATION
THE BURNER MUST BE INSTALLED IN CONFORMITY WITH LEGISLATION AND LOCAL STANDARDS.
3.1
BOILER FIXING
Widen, if necessary, the insulating gasket holes (3, fig. 3), taking care not to damage them.
Fit the pressure point (7) supplied with the burner to the flange (5).
Fix the flange (5) to the boiler door (1) using four screws (4) and (if necessary) the nuts (2) interposing
the insulating gasket (3) but keep unloosing one of the two upper screws (4) (see fig. 2).
Put on the flange (5) the burner combustion head, tighten the flange with the screws (6) and lock the
loose screw (4).
Check that pressure point (7) can measure the chamber pressure through the insulating gasket accurately. If
the signal is not clear, fit the pressure point directly to the combustion chamber (for instance through the
inspection window pipe, if available). Failure to connect to an efficient pressure point in the combustion
chamber can result in poor firing and unsafe operation.
ATTENTION: The burner can be fixed with the variable dimension (A) (see fig. 4).
Anyway, make sure that the
combustion head crosses
completely the boiler
door thickness.
Fig. 2
3134
3
).
50
100
50,000
100,000
3
7
5
4
E9251
150
150,000
1
6
4
A
TYPE
916M
184
285
917M
918M
325
5
GB
200
250
200,000
Thermal power
Fig. 3
2
Fig. 4
170
267
302
kW
kcal/h
D5012
A
D4453
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