GENERAL
15
b
The stack must guarantee the minimum draught specified by applicable technical standards, assuming zero pres-
sure at the connection to the flue gas exhaust.
b
Values obtained with
r
Modelli GULLIVER RG burners with CO
2
= 12,5% and GULLIVER BS burners with CO
2
= 9,5%.
DESCRIPTION
MODEL
g
N
3
4
5
6
7
8
9
10
Fuel
gas / oil
Rated heat input
Minimum
16,3
27,2
36,0
46,1
55,0
63,0
-
-
kW
Maximum
26,5
34,8
44,3
53,1
62,0
70,0
80,0
92,0
kW
Rated useful heat output Pn
Minimum
14,9
25,0
33,0
42,3
50,0
57,6
-
-
kW
Maximum
23,9
31,5
40,2
48,2
56,2
63,8
72,5
83,5
kW
Useful efficiency at Pn
Minimum
91,4
91,9
91,7
91,8
90,9
91,4
-
-
%
Maximum
90,2
90,5
90,7
90,8
90,6
91,1
90,63
90,76
%
Useful efficiency at 30% max. Pn
90,9
91,3
91,6
92,0
91,8
92,0
90,3
90,5
%
Constant pressure drop
2,3
1,8
1,3
1,2
1,0
0,9
0,78
0,70
%
Flue gas temperature (∆T)
> 140
196
202
°C
Maximum flue gas flow rate (gas/oil)
0,010
0,013
0,017
0,020
0,024
0,027
0,033
0,037
Kg/s
Furnace pressure
Minimum
0,03
0,12
0,17
0,26
0,33
0,47
-
-
mbar
Maximum
0,10
0,17
0,26
0,36
0,42
0,60
0,23
0,28
mbar
Furnace volume
16
22
28
34
40
46
49
57
dm
3
Total volume of flue gas side
22
31
39
47
55
63
-
-
dm
3
Total surface area for heat exchange
0,93
1,30
1,67
2,04
2,41
2,78
2,61
3,00
m
2
Volumetric heat load
1656
1582
1582
1562
1550
1522
1632
1614
kW/m
3
Specific heat load
25,7
24,2
24,1
23,6
23,3
22,9
27,8
27,8
kW/m
2
Maximum working pressure
4
bar
Safety thermostat trip temperature
110
°C
Maximum working temperature
82
°C
Minimum admissible water return temperature
35
40
°C
Pressure drop ∆T 10°C
4
6
10
14
20
26
29
34
mbar
Pressure drop ∆T 20°C
1,2
1,6
2,5
3,5
5,0
7,0
8,0
9,0
mbar
Water capacity
13,7
17,2
20,7
24,2
27,7
31,2
42,0
47,0
l
Turbulators
5
5
2
2
-
-
4
4
n°
Index of protection
X0D
IP
TECHNICAL SPECIFICATIONS
