Technical Data; Variable Heat Output; Combustion Parameters - Immergas VICTRIX EXA 28 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 17 and 18 Fig. 36).
Victrix EXA 28 1 ErP
THERMAL POWER
(kW)
MAX. 27.7
MAX. 23.7
OUTPUT 5.5
Victrix EXA 32 1 ErP
THERMAL POWER
(kW)
MAX. 32.0
MAX. 28.0
OUTPUT 7.2

4.2 COMBUSTION PARAMETERS.

Supply pressure
Victrix EXA 28 1 ErP
Gas nozzle diameter (Gas valve 848)
Venturi diameter
No. x Ø venturi holes
Flue flow rate at nominal heat output D.H.W. / cen. heat.
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
Victrix EXA 32 1 ErP
Gas nozzle diameter (Gas valve 848)
Venturi diameter
No. x Ø venturi holes
Flue flow rate at nominal heat output D.H.W. / cen. heat.
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.
58
(kcal/h)
23822 D.H.W.
20382
CEN. HEAT.+
D.H.W.
4730
(kcal/h)
27520 D.H.W.
24080
CEN. HEAT.+
D.H.W.
6192
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.
METHANE (G20)
BURNER GAS
PRESS. BURNER NOZZLES BURNER GAS FLOW RATE PRESS. BURNER NOZZLES
FLOW RATE
(m /h) (mbar)
3 (mm H
3.00 3.13 31.9
2.56 2.38 24.2
0.60 0.17
METHANE (G20)
BURNER GAS
PRESS. BURNER NOZZLES BURNER GAS FLOW RATE PRESS. BURNER NOZZLES
FLOW RATE
(m /h) (mbar)
3 (mm H
3.44 1.70 17.4
3.01 1.32 13.4
0.79 0.20
mbar (mm H O)
2
mm
mm
mm
kg/h (g/s) 45 (12.50) - 38 (10.56)
kg/h (g/s)
± 0,2 %
ppm
mg/kWh
°C
°C
mm WITHOUT
mm
mm
kg/h (g/s) 51 (14,.17) - 45 (12.50)
kg/h (g/s)
%
ppm
mg/kWh
°C
°C
°C
PROPANE (G31)
(kg/h) - (g/s)
O)
2
2.20 - 0.61
1.88 - 0.52
1.7 0.44 - 0.12
PROPANE (G31)
(kg/h) - (g/s)
O)
2
2.52 - 0.70
2.21 - 0.62
2.0 0.58 - 0.16
G20
20 (204)
7.00
22.00
4 x 4.00
45 (12.50) - 38 (10.56)
10 (2.78)
9.40 / 8.60
200 / 9
54 / 23
53
46
24.00
4 x 4.00
50 (13.89) - 43 (11.94)
13 (3.61)
9.60 / 8.70
165 / 4
89 / 22
62
56
50
(mbar)
(mm H O)
2
3.94 40.2
2.87 29.3
0.20 2.0
(mbar)
(mm H O)
2
2.40 24.5
1.90 19.3
0.30 3.1
G31
37 (377)
5.00
22.00
4 x 4.00
9 (2.50)
10.80 / 10.40
270 / 12
60 / 35
59
44
6.00
24.00
4 x 4.00
13 (3.61)
11.20 / 9.60
200 / 8
112 / 24
61
55
50