19
INS
TALL
AT
O
R
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
3.16 VARIABLE HEAT POWER.
N.B.:
Gas flow rates refer to heating power
below a temperature of15°C and at a pressure
of 1013 mbar.
Burner pressure values refer to use of gas at 15°C.
3.17 COMBUSTION PARAMETERS.
G20
G30
G31
Gas nozzle diameter
mm
1,30
0,79
0,79
Supply pressure
mbar (mm H
2
O)
20 (204)
29 (296)
37 (377)
Flue flow rate at nominal heat output
kg/h
73
70
72
Flue flow rate at minimum heat output
kg/h
57
54
56
CO2 at Q. Nom./Min.
%
5,00 / 2,60
6,10 / 3,20
5,90 / 3,10
CO at 0% of O2 at Q. Nom./Min.
ppm
55 / 45
109 / 59
59 / 50
NOX at 0% of O2 at Q. Nom./Min.
ppm
177 / 81
279 / 115
240 / 108
Flue temperature at nominal heat output
°C
101
106
104
Flue temperature at minimum heat output
°C
74
77
76
METHANE (G20)
BUTANE (G30)
PROPANE (G31)
HEAT
POWER
HEAT
POWER
GAS FLOW RATE
BURNER
NOZZLE
PRESSURE BURNER
GAS FLOW RATE
BURNER
NOZZLE
PRESSURE BURNER
GAS FLOW RATE
BURNER
NOZZLE
PRESSURE BURNER
(kW)
(kcal/h)
(m
3
/h)
(mbar) (mm H
2
O)
(kg/h)
(mbar) (mm H
2
O)
(kg/h)
(mbar) (mm H
2
O)
MAX.
23,7
20382
2,77
13,30
135,6
2,07
27,80
283,5
2,04
35,80
365,1
MIN CEN.
HEAT.
10,4
8944
1,27
3,00
30,6
0,95
7,12
72,6
0,93
8,38
85,4
MIN
D.H.W.
9,5
8170
1,17
2,50
25,5
0,87
5,50
56,1
0,86
6,93
70,7
Combustion parameters: measuring conditions
of useful efficiency (flow temperature/return
temperature= 80/60 °C), ambient temperature
reference = 15°C.
Содержание AVIO 24 2 ERP
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