Technical Data; Variable Heat Output; Combustion Parameters - Immergas VICTRIX EXA 24 X 1 ERP Instruction Booklet And Warning

4
TECHNICAL
DATA

4.1 VARIABLE HEAT OUTPUT.

N.B.: N.B.: the pressures indicated in the table represent the dif-
ferences of pressures at the ends of the Venturi mixer and can be
measured from the pressure points in the upper part of the sealed
chamber (see pressure test 16 and 17 Fig. 35).
THERMAL POWER
(kW) (kcal/h)
MAX. 23.7 20382
MIN. 5.5 4730

4.2 COMBUSTION PARAMETERS.

Gas nozzle diameter (Gas valve 848)
Venturi diameter
No. x Ø venturi holes
Supply pressure
Flue flow rate at nominal heat output
Flue flow rate at min heat output
CO at Q. Nom./Min.
2
CO with 0% O at Nom./Min. Q. Nom./Min.
2
NO at 0% of O at Q. Nom./Min.
X 2
Flue temperature at nominal output
Flue temperature at minimum output
Max air combustion temperature
Combustion parameters: measuring conditions of useful efficiency (flow temperature/return temperature= 80/60 °C), ambient tem-
perature reference = 15°C.
METHANE (G20)
BURNER GAS FLOW
PRESS. BURNER NOZZLES
RATE
(m /h) (mbar)
3
2.56 2.29
0.60 0.17
mbar (mm H
The adjustments must be made with a digital differential pressure
gauge with scale in tenths of a mm or Pascal. The power data in
the table has been obtained with an intake-exhaust pipe measuring
0.5 m in length. Gas flow rates refer to the lower calorific value at
a temperature of 15°C and at a pressure of 1013 mbar. The burner
pressure values refer to the use of gas at a temperature of 15°C.
BURNER GAS FLOW
(mm H O) (kg/h) - (g/s)
2
23.4 1.88 - 0.52
1.7 0.44 - 0.12
G20
mm 7.00
mm 22.00
mm 4 x 4.00
O) 20 (204)
2
kg/h (g/s) 38 (10.55)
kg/h (g/s) 10 (2.77)
± 0.2 % 9.40 / 8.60
ppm 200 / 9
mg/kWh 54 / 23
°C
°C
°C
PROPANE (G31)
PRESS. BURNER NOZZLES
RATE
(mbar)
2.88
0.20
37 (377)
38 (10.55)
10.80 / 10.40
53
46
50
(mm H O)
2
29.4
2.0
G31
5.00
22.00
4 x 4.00
9 (2.5)
270 / 12
60 / 35
59
44
50
57