Tabla de contenido
Idiomas disponibles
Idiomas disponibles
4.2 Operating principle
MEGAPREX N boilers are fitted with a closed cylindrical furnace, in which the flame produced by the burner is reversed peripherally
toward the front. From there, the burned gas enters the fire tubes. At the outlet, the gas is collected in the smokebox, and is then sent to the
chimney. The combustion chamber is always pressurized during burner operation. For the pressure values, see Table 1, in the column Flue gas
side pressure drop. The flue and flue stack fitting must be made in accordance with current standards and legislation, using rigid pipes that are
resistant to high temperatures, condensate, and mechanical stress, and are airtight. (Fig. 1)
4.3 Technical data - Dimensions - Hydraulic connections
MEGAPREX N
Rated power
Combustion chamber power
Useful efficiency at 100% maximum power
Useful efficiency at 30% maximum power
Total boiler capacity
Water side load loss
Flue side load loss
Maximum operating pressure
Dry weight
DIMENSIONS
HOT WATER FLOW
HOT WATER RETURN
EXPANSION TANK CONNECTION
BOILER DRAIN
FLUE OUTLET
IT
44
MEGAPREX N 720N ÷ 1060N
min
kW
max
kW
min
kW
max
kW
%
%
liters
mbar
mbar
mbar
mbar
bar
kg
A
mm
B
mm
C
mm
D
mm
E
mm
F
mm
G
mm
H
mm
I
mm
L
mm
L1
mm
M
mm
N
mm
O
mm
P
mm
Q
mm
R
mm
T1
T2
T3
T4
T5
Øe mm
cod. 3541O220 - Rev. 00 - 03/2018
720N
820N
940N
468
533
720
820
502
566
777
881
1011
92.71
93.10
92.95
93.60
94.40
94.20
735
735
32
40
18
25
10
18
4.5
5.6
6
6
1250
1250
1420
1250
1250
1250
1784
1784
2024
1335
1335
1335
162
162
212
212
219
219
830
830
565
565
2215
2215
2455
196
196
227
227
1400
1400
1400
223
223
440
440
700
700
1200
1200
1200
1752
1752
1992
DN 100
DN 100
DN 100
DN 100
DN 100
DN 100
2 1/2"
2 1/2"
2 1/2"
1"
1"
340
340
1060N
611
667
940
1000
651
717
1075
93.05
96.75
850
1250
51
65
25
33
16
20
5.4
6
6
6
1580
1430
2028
1515
162
162
212
240
219
214
830
900
565
670
2482
196
196
227
227
1580
223
227
480
480
900
900
1380
1992
DN 125
DN 125
3"
1"
1"
340
400
Capítulos
Tabla de contenido
