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4
TECHNICAL DATA.
4.1
Variable heat output.
N.B.: the pressures indicated in the table represent the difference in
existing pressures between the gas valve outlet and the combustion
chamber. The adjustments should therefore,be carried out using
a differential manometer (small "U"-shaped column or digital
manometer) with the probes inserted in the pressure test gas valve
HEAT
HEAT
INPUT
OUTPUT
(kW)
(kW)
25.6
23.5
10.5
9.0
8.3
7.1
4.2
Combustion parameters.
Gas nozzle diameter
Supply pressure
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
to minimum Q.
2
O
to minimum Q.
2
CO at 0% of O
at Nom. Q./Min.
2
NO
at 0% of O
at Nom.Q./Min.
X
2
Flue temperature at nominal output
Flue temperature at minimum output
46
METHANE
(G20)
FAN REVS MODULATION
(rpm)
(%)
11.9
100
2.3
8
1.5
0
outlet and on the sealed chamber positive pressure test.
The power data in the table has been obtained with intake-exhaust
pipe measuring 0.5 m in length. Gas flow rates refer to heating
power below a temperature of 15°C and at a pressure of 1013 mbar.
Burner pressure values refer to use of gas at 15°C.
BURNER GAS
FAN REVS
FLOW RATE
(m
/h)
(rpm)
3
2.71
36.5
1.11
7.4
0.88
4.5
mm
mbar (mm H
O)
2
kg/h
kg/h
%
%
ppm
mg/kWh
°C
°C
PROPANE
(G31)
BURNER GAS
MODULATION
FLOW RATE
(%)
100
9
0
G20
G31
1.35
0.79
20 (204)
37 (377)
57
58
59
58
6.4
7.2
9.4
2.4
2,8
16.6
89 / 90
81 / 106
216 / 143
185 / 126
135
136
101
106
(kg/h)
1.99
0.82
0.64
-
-
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