Operating Instructions and Installation Instructions
LR, LRK, LR-NT, LRK-NT 21 - 32
We reserve the right to make changes to dimensions and construction 23 edition 30.10.2007
4.7.2. Pyronox LRK (low-NOx version)
Technical specifications recuperator (fuel oil, low NOx)
LRK 212223242526272829303132
Power
Nominal power qN (30 / 35°C)
max.
1
32 36 39 44 50 60 69 79 100 122 153 186
min.
1,3
14 17 17 23 23 32 38 38 45 56 81 84
Efficiencies
Overall efficiency 30 / 35 °C
100%
1
%
98.4 99.3 98.8 99.5 98.9 99.5 99.8 99.1 98.6 98.8 99.3 98.5
Overall efficiency 30 / 35 °C
30%
2
%
102.7 102.5 102.7 102.5 102.7 102.5 102.5 102.7 102.8 102.8 102.6 102.8
Efficiency DIN4702-8, 60 / 75 °C
ηN
3
%
102.4 102.5 102.5 102.5 102.6 102.5 102.5 102.6 102.6 102.7 102.7 102.7
Exhaust gas data, losses
Additional exhaust gas pressure drop
max
mbar
1.87 0.92 1.15 1.43 1.85 1.25 0.85 1.14 1.89 1.61 1.56 1.54
Total combustion space overpressure
max
mbar
5.95 3.93 4.85 5.30 6.79 5.94 5.25 6.85 8.50 8.86 8.92 8.39
Exhaust gas temperature at 30 / 35 °C
max.
1
48 46 48 46 47 46 45 47 48 48 46 48
min.
1,3
34 35 35 35 35 35 36 36 35 35 35 35
Exhaust gas losses at 30 / 35 °C
max.
%
1.51.41.41.31.41.41.31.41.51.51.41.5
Stand-by loss qB
70 °C
W
824 926 926 1073 1073 1239 1447 1447 1645 1831 2166 2427
Hydraulic data
Water resistance
Δt=5K
12 21 26 23 29 30 28 36 38 39 39 41
Δt=10K
3576787910101010
Water flow
max. 5.5 6.2 6.7 7.5 8.6 10.3 11.8 13.5 17.1 20.9 26.2 31.9
min. 5.5 7.3 9.5 7.3 10.3 8.3 10.0 13.5 16.0 13.0 13.3 16.5
Condensate
Amount of condensate
max.
L / h
14.4 16.7 17.6 21.2 22.6 29.3 34.1 36.6 44.5 54.5 72.3 83.0
Values at:
3zugskessel, V-01/07
- lamda=1.2, CO2=12.7%
OB
- T-air=20°C, rel. humidity=60%, p-baro=100kPa
1: Boiler at 60 / 80 °C
2: Boiler at 50 / 70 °C
3: Max. sulphur content 0.05% (500 ppm)
m3/h
kW
mbar
°C
Technical specifications recuperator (natural gas, low NOx)
LRK 212223242526272829303132
Power
Nominal power qN (30 / 35°C)
max.
1
56 62 68 77 87 104 119 136 174 212 265 325
min.
1
12 15 15 21 21 32 38 39 45 57 87 87
Efficiencies
Overall efficiency 30 / 35 °C
100%
1
%
103.2 104.0 103.5 104.2 103.6 104.2 104.4 103.8 103.4 103.5 104.0 103.3
Overall efficiency 30 / 35 °C
30%
1
%
107.5 107.5 107.5 107.6 107.7 107.7 107.7 107.7 107.7 107.8 107.8 107.8
Efficiency DIN4702-8, 60 / 75 °C
ηN
%
107.0 107.1 107.1 107.2 107.2 107.3 107.3 107.3 107.3 107.3 107.4 107.3
Exhaust gas data, losses
Additional exhaust gas pressure drop
max
mbar
1.92 0.94 1.17 1.46 1.89 1.28 0.89 1.17 1.94 1.65 1.59 1.58
Total combustion space overpressure
max
mbar
6.09 4.01 4.93 5.41 6.92 6.06 5.38 6.99 8.68 9.05 9.10 8.56
Exhaust gas temperature at 30 / 35 °C
max.
1
48 46 47 46 47 46 45 46 47 47 46 48
min.
1
32 32 32 33 33 33 33 33 32 32 33 32
Exhaust gas losses at 30 / 35 °C
max.
%
1.5 1.4 1.4 1.3 1.4 1.4 1.3 1.4 1.5 1.5 1.4 1.5
Stand-by loss qB
70 °C
W
824 926 926 1073 1073 1239 1447 1447 1645 1831 2166 2427
Hydraulic data
Water resistance
Δt=5K
37 64 79 68 88 89 83 109 115 117 116 124
Δt=10K
9 1620172222212729292931
Water flow
max. 9.6 10.6 11.7 13.2 14.9 17.8 20.4 23.3 29.8 36.3 45.4 55.7
min. 5.5 7.3 9.5 7.3 10.3 8.3 10.0 13.5 16.0 13.0 13.3 16.5
Condensate
Amount of condensate
max.
L / h
38.0 47.0 49.0 60.0 63.0 81.0 96.0 101.0 123.5 151.0 198.0 230.0
Values at:
3zugskessel, V-01/07
- lamda=1.15, CO2=10%
GB
- T-air=20°C, rel. humidity=60%, p-baro=100kPa
1: Boiler at 60 / 80 °C
kW
mbar
°C
m3/h
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