SCHUSTER BWA R50, Руководство по установке и обслуживанию

Страница: 13 / 40

13 13
Technical Features
BWA R 50 c BWA R 70
Appliance category II
2H3P
II
2H3P
Modulation Ratio 1:5 1:7
Nominal Heat Input on P.C.I. Qn kW 48,5 67,5
Minimum Heat Input on P.C.I. Qmin kW 9,6 9,6
Nominal Output (Tr 60 / Tm 80 °C) Pn kW 47,2 65,5
Minimum Output (Tr 60 / Tm 80 °C) Pn min kW 9,1 9,1
Nominal Output (Tr 30 / Tm 50 °C) Pcond kW 49,3 68,5
Minimum Output (Tr 30 / Tm 50 °C) Pcond min kW 10,3 10,3
Efficiency at max. output (Tr 60 / Tm 80°C) % 97,29 97,29
Efficiency at min. output (Tr 60 / Tm 80°C) % 94,9 94,9
Efficiency at max. output (Tr 30 / Tm 50°C)) % 101,62 101,51
Efficiency at min. output (Tr 30 / Tm 50°C) % 104,3 104,3
Rendimento al 30% del carico (Tr 30°C) % 107,33 107,33
Number of stars (according to 92/42 EEC)
Combustion efficiency with nominal load % 97,80 97,41
Combustion efficiency with minimum load % 98,42 98,42
Heat loss at casing with burner in operation (Qmin) % 3,61 3,61
Heat loss at casing with burner in operation (Qn) % 0,51 0,12
Stand-by losses (with ∆t 30°C) % 0,2 0,2
Flue gas temperature tf-ta (min)(**) °C 33 33
Flue gas temperature tf-ta (max)(**) °C 43,6 51,3
Flue gas mass flow rate (min) kg/h 15,9 15,9
Flue gas mass flow rate (max) kg/h 80,0 111,4
Excess λ air % 26,84 20,57
(***) CO
2
(min/max) % 9,0- 9,2 9,5 - 9,5
Flue losses with burner in operation (min) % 1,58 1,58
Flue losses with burner in operation (max) % 2,20 2,59
Flue losses with burner off (depression “0”) % 0,2 0,2
Portata d’acqua alla potenza nominale (∆T 15°C) l/h 2837 3927
Portata d’acqua alla potenza nominale (∆T 20°C) l/h 2120 2946
Minimum heating circuit pressure bar 0,5 0,5
Maximum heating circuit pressure bar 6 6
Max allowable pressure of the generator bar 8 8
Water content l 3,9 3,9
Gas Consumption Natural (20 mbar) gas G 20 a Qn m
3
/h 5,13 7,14
Gas Consumption Natural gas (20 mbar) G 20 a Qmin m
3
/h 1,02 1,02
Gas Consumption G25 (supply pressure 25 mbar) Qn m
3
/h
Gas Consumption G25 (supply pressure 25 mbar) Qmin m
3
/h
Gas Consumption G31 (supply pressure 37/50 mbar) Qn kg/h 3,76 5,24
Gas Consumption G31 (supply pressure 37/50 mbar) Qmin kg/h 0,75 0,75
Max. available pressure at the chimney base Pa 40 40
Condensate production max kg/h 7,8 10,87
Emissioni
CO at Minimum Heat Input with 0% of O2 mg/kWh 19,7 19,7
NOx at Nominal Heat Input with 0% of O2 mg/kWh 68 68
NOx at Minimum Heat Input with 0% of O2 mg/kWh 37 37
NOx Weighted value according EN 15420) mg/kWh 33,9 34,68
NOx Class 5 5
Electrical Data
Voltage/Frequency electric power supply V/Hz 230/50 230/50
Fuse on main supply A (R) 4 4
Maximum absorbed output W 172 290
Minimum absorbed output W 77 145
Standby Consumption W 16 16
Insulation degree IP X4D X4D
(*) (*) Room Temperature = 20°C
(**) Temperatures detected with the unit in operation
(Tr 60 / Tm 80°C)
(***) See table INJECTORS PRESSURES
 
2.5 - OPERATING DATA ACCORDING TO UNI 10348 and GENERAL FEATUREs
For the adjustment data: NOZZLES - PRESSURE - DIAGRAMS - FLOW RATES - CONSUMPTION refer to the paragraph ADAP -
TATION TO OTHER TYPES OF GAS.