14
2.5 - OPERATING DATA AND GENERAL FEATURES
For the adjustment data: NOZZLES - PRESSURE - DIAGRAMS - FLOW RATES refer to the paragraph ADAPTATION TO OTHER
TYPES OF GAS.
SPK 150 SPK 230 SPK 300 SPK 400 SPK 500 SPK 600
Boiler category
II
2H3P
II
2H3P
II
2H3P
II
2H3P
II
2H3P
II
2H3P
Modulation ratio
1 : 4.0
1 : 4.3
1 : 4.3
1 : 4.2
1 : 3.9
1 : 4.4
Rated heat output on P.C.I. Qn
kW
140
214
280
380
450
550
Minimum heat output on P.C.I. Qmin
kW
35
50
65
90
115
125
Rated useful power (Tr 60 / Tm 80 °C) Pn
kW
136.33
209.25
273.76
371.56
440.1
534.5
Minimum useful power (Tr 60 / Tm 80 °C) Pn min
kW
32.49
48.21
62.00
86.08
110.0
118.5
Rated useful power (Tr 30 / Tm 50 °C) Pcond
kW
145.94
226.80
292.77
399.00
472.2
578.2
Minimum useful power (Tr 30 / Tm 50 °C) Pcond min
kW
36.65
54.61
70.03
97.16
124.0
135.2
Rated power performance (Tr 60 / Tm 80°C)
%
97.38
97.78
97.77
97.78
97.81
97.2
Minimum power performance (Tr 60 / Tm 80°C)
%
92.82
96.46
95.39
95.64
95.62
94.8
Rated power performance (Tr 30 / Tm 50°C)
%
104.24
105.98
104.56
105
104.93
105.1
Minimum power performance (Tr 30 / Tm 50°C)
%
104.72
109.22
107.74
107.95
107.86
108.2
Performance at 30% of the load (Tr 30°C)
%
107.65
107.18
108.99
108.98
108.97
106.5
Seasonal Energy Efficiency
according to 2009/125 EEC (<=400Kw)
η
s
92.6
92.3
93.7
93.6
93.7
91.7
Combustion efficiency at nominal load
%
97.59
97.43
97.47
97.35
97.02
97.00
Combustion efficiency with reduced load
%
98.41
98.33
98.28
98.33
98.25
98.4
Casing heat loss with burner operating (Qmin)
%
5.59
1.91
2.89
2.69
2.63
3.6
Casing heat loss with burner operating (Qn)
%
0.1
0.1
0.1
0.1
0.1
0.1
Net flue gas temperature tf-ta (min)(**)
°C
32.3
33.6
34.6
33.7
34.3
31.5
Net flue gas temperature tf-ta (max)(**)
°C
49
51.7
51
53.3
60.0
61.0
Maximum permitted temperature
°C
100
100
100
100
100
100
Maximum operating temperature
°C
85
85
85
85
85
85
Flue gas mass flow rate (min)
kg/h
56.16
80.97
105.26
107.0
131.5
141.7
Flue gas mass flow rate (max)
kg/h
224,60
346,57
453,47
621,05
728,67
898,97
Excess air
%
23.00
24.25
24.25
24.25
26.84
25.5
(***) CO
2
(min/max)
%
9.3 - 9.3 9.2 - 9.2 9.2 - 9.2 9.1 - 9.1
9.2 - 9.2 9.1 - 9.1
Heat loss at chimney with burner on (min)
%
1.59
1.67
1.72
1.67
1.75
1.58
Heat loss at chimney with burner on (max)
%
2.41
2.57
2.53
2.65
2.98
3.05
Heat loss on stop at ∆T 30°C
%
0.23
0.18
0.12
0.25
0.21
0.24
Minimum heating circuit pressure
bar
0.5
0.5
0.5
0.5
0.5
0.5
Maximum heating circuit pressure
bar
6
6
6
6
6
6
Water content
l
153
210
270
340
340
425
Methane gas consumption G20 (pow.sup. 20 mbar) at Qn
m
3
/h
14.80
22.63
29.61
40.18
47.58
58.16
Methane gas consumption G20 (pow.sup. 20 mbar) at Qmin
m
3
/h
3.70
5.29
6.87
9.52
12.16
13.22
Gas consumption G25 (pow.sup. 20/25 mbar) at Qn
m
3
/h
17.22
26.32
34.43
46.73
55.34
67.64
Gas consumption G25 (pow.sup. 20/25 mbar) at Qmin
m
3
/h
4.30
6.15
7.99
11.07
14.14
15.37
Propane gas consumption (pow. sup. 37/50 mbar) at Qn
kg/h
10.87
16.61
21.73
29.50
34.93
42.69
Propane gas consumption (pow. sup. 37/50 mbar) at Qmin
kg/h
2.72
3.88
5.05
6.99
8.93
8.70
Chimney base maximum pressure available
Pa
100
100
100
100
100
100
Max condensate production
kg/h
11.3
13.7
15.8
28.5
28.8
31.0
Emissions
CO at maximum heat output with 0% of O2
mg/kWh
13
17
17
16
22.7
24.8
NOx at maximum heat output with 0% of O2
mg/kWh
34
50
40
29
56
68.4
NOx Class
5
5
5
5
5
5
Electrical data
Power supply voltage/frequency
V/Hz
230/50
230/50
230/50
230/50
230/50
230/50
Fuse on the power supply
A (R)
6
6
6
6
6
6
Electricity consumption on standby
kW
0.005
0.005
0.005
0.005
0.005
0.004
Protection rating
IP
20
20
20
20
20
20
Room Temperature = 20°C
(**) Temperature detected with appliance operation flow rate 80°C / ret. 60°C
(***) See table ‘’NOZZLES - PRESSURE’’
