7
31 RAI
45 RAI
Rated heat input, CH
kW
34,4
50,0
kcal/h
29590
43000
Rated heat output, CH
kW
31,0
45,0
kcal/h
26660
38700
Electrical consumption
W
15
Category
II 2H3+
Power supply voltage
V ~ Hz
230 ~ 50
Index of protection
IP
40
Losses from stack and casing with burner off
%
1,37
1,23
Central heating circuit characteristics
Maximum pressure - temperature
bar -°C
3 - 100
CH temperature setting range
°C
34-82
Gas pressure
Rated gas pressure, methane (G20)
mbar
20
Rated gas pressure, LPG (G30-G31)
mbar
28-30/37
Water connections
CH flow - return
Ø
3/4"
Gas inlet
Ø
1/2"
Emissions with G20 gas
CO below
p.p.m.
21
19
CO2
%
5,7
5,5
NOx (according to EN 297)
class 1
Flue gas Δt
°C
96
113
Boiler dimensions
Height
mm
850
Width
mm
450
600
Depth
mm
675
720
Weight of boiler
kg
118
154
2.5
Technical specifications
PARAMETER
31 RAI
45 RAI
Lower Wobbe index
(at 15°C-1013 mbar)
G20
(MJ/m3)
45,5
(at 15°C-1013 mbar)
G30
(MJ/m3)
80,9
(at 15°C-1013 mbar)
G31
(MJ/m3)
70,9
Main burner
number nozzles
4
6
nozzle diameter
G20
Ø mm
2,40
2,40
G30
Ø mm
1,50
1,45
G31
Ø mm
1,50
1,45
Nozzle pressure
(downstream from valve in central heating only mode)
G20
mbar
Δ
p
13,5
12,7
mm H2O
Δ
p
138
129
G30
mbar
Δ
p
28,0
27,8
mm H2O
Δ
p
285
283
G31
mbar
Δ
p
34,7
35,7
mm H2O
Δ
p
354
364
Maximum gas flow rate, CH (*)
G20
m3/h
3,50
5,10
G30
kg/h
2,70
3,92
G31
kg/h
2,66
3,86
(*) Temperature 15°C; Pressure 1013 mbar
Содержание NOVELLA 45 RAI
Страница 1: ...Installation Manual NOVELLA 31 45 RAI Boilers Cast Iron Base EN Installation Manual...
Страница 26: ...INSTALLATION MANUAL 26...
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