Table of Contents
Advertisement
4.2
COMBUSTION PARAMETERS
Combustion parameters: measuring conditions of useful efficiency (flow temperature/return temperature= 80/60 °C), ambient temper-
ature reference = 20 °C.
Gas type
Supply pressure
Gas nozzle diameter
Flue flow rate at D.H.W. nominal heat output
Flue flow rate at heating nominal heat output
Flue flow rate at min heat output
CO
at Nominal Q.
2
O
at Nominal Q.
2
CO
at Minimum Q.
2
O
at Minimum Q.
2
CO with 0% O
at Nom./Min. Q.
2
NO
with 0% O
at Nom./Min. Q.
x
2
Flue temperature at nominal output
Flue temperature at minimum output
When using H2NG mixtures with H
the device must refer to the O
114
percentages up to 20% (referring to the gas distributed in the network), all calibration operations of
2
values of the G20 gas given in the following table.
2
G20
mbar
20,0
mm
4,90
kg/h
44
kg/h
38
kg/h
8
9,7 (9,5 ÷ 10,2)
%
3,5 (3,9 ÷ 2,6)
8,8 (8,5 ÷ 9,0)
%
5,1 (5,7 ÷ 4,8)
ppm
320 / 7
mg/kWh
58 / 22
°C
70
°C
64
G31
37,0
3,80
43
37
7
11,4 (11,1 ÷ 11,5)
- (- ÷ -)
10,6 (10,5 ÷ 10,9)
- (- ÷ -)
360 / 9
80 / 55
69
69
Advertisement
Table of Contents
