Hoval SR-plus 900 - SR-plus Technical & Performance Details; SR-plus 500-1500 Specifications; SR-plus 1750-4000 Specifications

6
SR-plus Technical & Performance Details
(1) Based on a maximum limit thermostat setting of 110
o
C.
(2) Boiler efciencies at 100% load are based on a mean operating temperature
of 70
o
C, at 30% efciencies are based on a mean temperature of 50
o
C.
(3) Based on gross CV 38.5 MJ/m
3
.
(4) Based on gross CV 45.5 MJ/kg and specic gravity 0.835.
(5) Hydraulic resistance (mbar) = (Flow rate (m
3
/h))
2
x z
Figures are based on the maximum boiler outputs.
Type 500 600 700 900 1200 1500
• Maximum output kW 500 600 750 1000 1250 1500
• Minimum output kW 225 300 375 500 625 750
• Boiler input at maximum output kW 546.45 656.50 818.77 1094.09 1366.12 1646.54
• Boiler input at minimum output kW 240.60 322.23 401.50 534.76 667.74 803.86
• Maximum boiler operating temperature
(1)
°C 100 100 100 100 100 100
• Minimum return temperature (oil/gas) °C 60/55 60/55 60/55 60/55 60/55 60/55
• Minimum ue gas temperature °C 140 140 140 140 140 140
• Maximum working pressure / test pressure bar 6/9 6/9 6/9 6/9 6/9 6/9
• Boiler efciency net
(2)
at 100%PN % 91.5 91.4 91.6 91.4 91.5 91.1
at 30%PN % 93.5 93.1 93.4 93.5 93.6 93.3
• Standing losses qB at 70°C Watt 1250 1500 1725 1800 2375 2400
• Insulation thickness mm 100 100 100 100 100 100
• Fuel Consumption at maximum output
Nat Gas
(3)
m
3
/hr 56.35 68.07 84.90 113.45 141.66 170.73
35 seconds oil
(4)
litres/hr 55.17 66.13 77.22 99.37 137.87 166.16
• Hydraulic resistance through the boiler
(5)
z-factor 0.020 0.020 0.010 0.011 0.011 0.009
• Hydraulic resistance with 11 K
T m bar 30.55 44.00 34.36 67.20 105.00 122.31
• Hydraulic resistance with 20 K
T m bar 9.25 13.31 10.39 20.33 31.77 37.43
• Water Flow rate with 11 K
T m
3
/ h 39.08 46.90 58.62 78.16 97.71 117.25
• Water Flow rate with 20 K
T m
3
/ h 21.50 25.80 32.24 42.99 53.74 64.49
• Boiler water content litres 800 770 1340 1250 1320 1330
• Dry Weight (without burner)
(6)
kg 1700 1754 2463 2616 3350 3650
Type 1750 2000 2250 2500 3000 3500 4000
• Maximum output kW 1760 2050 2350 2650 3000 3500 4150
• Minimum output kW 880 1025 1175 1325 1500 1750 2075
• Boiler input at maximum output kW 1931.94 2242.89 2573.93 2908.89 3285.87 3837.72 4555.43
• Boiler input at minimum output kW 945.22 1100.97 1260.73 1418.63 1602.56 1871.66 2226.40
• Maximum boiler operating temperature
(1)
°C 100 100 100 100 100 100 100
• Minimum return temperature (oil/gas) °C 60/55 60/55 60/55 60/55 60/55 60/55 60/55
• Minimum ue gas temperature °C 140 140 140 140 140 140 140
• Maximum working pressure / test pressure bar 6/9 6/9 6/9 6/9 6/9 6/9 6/9
• Boiler efciency net
(2)
at 100%PN % 91.1 91.4 91.3 91.1 91.3 91.2 91.1
at 30%PN % 93.1 93.1 93.2 93.4 93.6 93.5 93.2
• Standing losses qB at 70°C Watt 2475 2510 2530 2570 2960 3070 3160
• Insulation thickness mm 100 100 100 100 100 100 100
• Fuel Consumption at maximum output
Nat Gas
(3)
m
3
/hr 200.33 232.58 266.90 300.97 340.35 397.51 455.30
35 seconds oil
(4)
litres/hr 194.96 226.34 259.75 276.93 330.87 387.86 443.09
• Hydraulic resistance through the boiler
(5)
z-factor 0.008 0.006 0.006 0.0015 0.0015 0.0015 0.0017
• Hydraulic resistance with 11 K
T m bar 151.40 154.06 202.45 64.36 82.48 112.96 166.19
• Hydraulic resistance with 20 K
T m bar 45.80 46.60 61.24 19.47 24.95 33.96 50.27
• Water Flow rate with 11 K
T m
3
/ h 137.57 160.24 183.69 207.14 234.49 277.57 312.66
• Water Flow rate with 20 K
T m
3
/ h 75.66 88.13 101.03 113.92 128.97 150.47 171.96
• Boiler water content litres 2150 2690 3350 3660 3670 4020 4130
- Dry Weight (without burner)
(6)
kg 4325 4600 5400 5900 6525 8700 10850
SR-plus 1750 - 4000
(6) Dry weights based on the 6 bar boiler. To calculate the weight of an 8 bar
version add 30%.
SR-plus 500 - 1500
August 2014