GAS - NOZZLE CALIBRATION
The boilers leave the factory calibrated and predisposed to operate with NATURAL GAS or B/P. For the pre-
calibrations effected, see the related table below:
Model
Gas type
25 NB
NATURAL
29 NB
G20 - 20 mbar
25 NB
B / P
G30 - 30 mbar
29 NB
G31 - 37 mbar
* = at 1013 mbar, 15°C
BURNER PRESSURE CURVE - OUTPUT
6000
5800
5500
5000
4000
3000
2000
1000
8
8.8
CO
Min
8,8
GAS
9,8
Epoca 25 NB
10
12
14
16
10.9
%
Flow-rate
2
3
Max
m
/h
2,62
9,0
3,05
0,765
(G30)
1,01
(G31)
10,0
0,877
(G30)
1,15
(G31)
Epoca 29 NB
18
20
22
24
Burner
jet
diaphragm
Ø mm
Ø mm
4,9
21,0
5,4
23,5
3,8
21,0
4,2
23,5
kW
26
30
25.0
29.0
73
Air
Calorific
value (*)
Kcal/h
8.550
29.330
22.360
29.330
22.360
Field of job previewed for
operation like paragraph
"FLUE
EXHAUST
PIPE
INSTALLATION - SPECIAL
APPLICATIONS" page 56.