7
PRK 1520
PRK 1870
PRK 2350
PRK 3000
PRK 3500
kW
kcal/h x 1000
1.180 ÷ 1.520
1.014,8 ÷ 1.307,2
1.480 ÷ 1.870
1.278,8 ÷ 1.608,2
1.830 ÷ 2.350
1.573,8 ÷ 2.021
2.450 ÷ 3.000
2.107 ÷ 2.580
2.780 ÷ 3.500
2.390,8 ÷ 3.010
kW
kcal/h x 1000
1.270 ÷ 1.664
1.092,9 ÷ 1.431
1590 ÷ 2045
1.367,4 ÷ 1.758,7
1.980 ÷ 2.572
1.702,8 ÷ 2.211,9
2.642 ÷ 3.285
2.272,1 ÷ 2.825,1
3.015 ÷ 3.835
2.592,9 ÷ 3.298,1
Combustion chamber volume
m³
1,55
1,94
2,577
3,033
3,636
kW/m³
kcal/h
m³
1.073,5
923.210
1.050
903.086
998
858.280
1.083
931.454
1.054,7
907.068
Exchange surface
m²
33,1
41,2
49,5
57,8
71,1
kW/m²
kcal/h
m²
45,9
39.492
45,4
39.034
47,5
40.828
51,9
44.637
49,2
42.335
Smoke
duct
number
n°
61 69 79 99 128
Smoke duct diameter
Ø est.
1½”
1½”
1½”
1½”
1½”
Boiler
weight
kg
2.610 3.220 4.010 6.030 7.240
Water content lt.
1.650
2.080
2.690
3.740
4.490
Operating pressure
bar
6
6
6
6
6
Hydraulic pressure
bar
9
9
9
9
9
Max.
operatine
temperature
°C
95 95 95 95 95
Water loss of heat
∆
t=15°C mbar
43 46 40 58 40
Combustion chamber pressure
mbar
5,8
6
6
6,5
6,8
Minimum efficiency at 100%
%
89,2
89,2
89,2
89,2
89,2
Efficiency at 100%
%
91,35
91,4
91,5
91,4
91,3
Minimum effciency at 30%
%
87,8
87,8
87,8
87,8
87,8
Efficiency at 30%
%
92,8
92,9
92,9
92,5
93,2
Loss of heat at the chimney with working burner
%
8,22
8,2
8,12
8,21
8,29
Loss of heat at the chimney with burner out
%
0,17
0,20
0,18
0,2
0,16
Loss of heat at the jacket
∆
t=50°C %
0,43 0,4 0,38 0,39 0,41
Burner connection (Ø)
mm
320
370
370
370
370
Flue connection (Ø)
mm
450
500
550
600
700
Min.
chimney
depression
mbar
0,2 0,2 0,2 0,2 0,2
Max smoke temperature
°C
197
188
193
188
195
Smoke temperature in the output range
°C
147 ÷ 197
149 ÷ 188
159 ÷ 193
152 ÷ 188
155 ÷ 195
CO
2
a gas
%
10,2
9,8
10,4
10,2
9,9
CO
a
gas
ppm
69 55 70 77 68
NOx
a
gas
ppm
71 52 72 74 73
Max. light oil smoke flow rate
m³/h
3.928
4.828
6.276
8.016
9.358
Max. methane smoke flow rate
m³/h
3.490
4.289
5.691
7.269
8.486
Light oil burning air volume (practice) m³/h
2.146 2.638 3.311 4.229 4.937
Methane burning air volume (practice)
m³/h
1.989
2.445
2.949
3.766
4.397
Combustion chamber dimensions (DiameterxLenght)
mm
880
×
2.550
944
×
2.760
1.020
×
2.780
1.211
×
2.720
1.211
×
3.000
Thermostat adjustment range
°C
55 ÷ 80
55 ÷ 80
55 ÷ 80
55 ÷ 80
55 ÷ 80
Output
Fornace output
Thermal load
Thermal output
Summary of Contents for MK 100
Page 1: ...MK PRK Installation Usage Maintenance ...
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Page 25: ...21 PRK ...