SCHUSTER SWG A 23 - OPERATING DATA ACCORDING TO UNI 10348; GENERAL FEATURES

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ENGLISH
TECHNICAL FEATURES
2.5 - GENERAL FEATURES
2.4 - OPERATING DATA ACCORDING TO UNI 10348
For the adjustment data: NOZZLES - PRESSURE - DIAGRAMS - FLOW RATES - CONSUMPTION refer
to the paragraph ADAPTATION TO OTHER TYPES OF GAS.
Attention: should the boilers be used to heat systems at low temperature (e.g. radiant panels), a mixer valve is required to avoid
condensation forming.
SWG A23/R23 C16 C18/R18 C24/R24 C28/R28 C32
Maximumthermalowrate kW 25,5 16 (26,5) 20,5 26,5 30,1 34,5
Minimumthermalowrate kW 11,5 11,5 9,0 11,5 11,5 13,5
Effective nominal output kW 22,9 14,6 18,5 24,6 28 31,6
Minimumeffectiveoutput kW 9,9 10,1 7,8 10,1 10,2 11,6
Effectiveefciencyatnominalload(100%) % 89,9 91,05 90,4 92,92 93,18 91,69
Effectiveefciencyrequired(100%) % 89,72 89,33 89,54 92,78 92,9 90,0
Effectiveefciencyat30%load % 89,43 89,48 90,23 90,23 90,42 90,42
Effectiveefciencyrequired(30%) % 87,08 86,49 86,80 90,17 90,34 87,5
Number of stars (according to 92/42 EEC) n.
Combustionefciencywithnominalload(100%) % 91 91,13 91,57 93,72 94,46 93,59
Combustionefciencywithreducedload % 88 88,92 83,41 88,92 88,78 87,16
Heatlossatcasing(min.-max.) % 1,68-1,11 1,1-0,1 2,78-1,17 0,86-0,80 0,27-1,28 0,61-1,90
(*)Fluegastemperaturetf-ta(max.) % 107,5 92,3 121,5 109 103,5 120,9
Fluegasmassowrate(min.-max) g/s 16,76-8,85 14,21-14,1 14,32-13,0 14,21-13,89 14,7-14,6 17,2-16,6
Excessλair % 122,09 156,9 80,61 46,94 35,3 33,84
CO
2
% 2,4-5 3,0-4,3 2,3-6,2 3,0-7,7 2,9-8,4 2,9-8,5
NOx(WeightedvalueaccordingtoEN297/A3orEN483) mg/kWh 189,2 178,59 178,59 178,59 186,6 178,21
NOxClass 2 2 2 2 2 2
Heatlossatchimneywithburneron(min.-max.) % 11,97-9,02 11,08-8,87 8,43-16,59 11,08-6,28 11,2-5,5 12,8-6,4
Heatlossatchimneywithburneroff % 0,657 0,354 0,457 0,354 0,32 0,280
Notes:(*)RoomTemperature=20°CDatadetectedwithappliancerunningonMethanegas(G20)
SWG
A 23 R23 C 16 C 18 R18 C 24 R24 C 28 R28 C 32
Appliance category
II
2H3P
II
2H3P
II
2H3P
II
2H3P
II
2H3P
II
2H3P
Minimumheat.circuitoutput(∆t20°C) l/min
7,12 7,26 5,56 7,26 7,3 8,28
Minimumheatingcircuitpressure bar
0,5 0,5 0,5 0,5 0,5 0,5
Maximumheatingcircuitpressure bar
3 3 3 3 3 3
Primary circuit content l
3 3 3 3 3,5 3,5
Maximumoperatingtemperatureinheat. °C
78 78 78 78 78 78
Minimumoperatingtemperatureinheat. °C
45 45 45 45 45 45
Expansionvesseltotalcapacity l
6 6 6 6 8 10
Expansionvesselpre-load bar
1 1 1 1 1 1
Maximumsystemcapacity(maxtemp.calc.) l
138 138 138 138 184 230
Minimumdomestichotwatercircuitowrate l/min.
2,5 - 2,5 2,5 - 2,5 - 2,5 - 2,5 -
Minimumdomestichotwatercircuitpressure bar
0,5 - 0,5 0,5 - 0,5 - 0,5 - 0,5 -
Maximumdomestichotwatercircuitpressure bar
6 - 6 6 - 6 - 6 - 6 -
Domestichotwaterspecicowrate(∆t30°C) l/min.
10,5 - 11,5 8,5 - 11,5 - 13,5 - 15,2 -
Domestichotwaterowratelimiter l/min.
10 - 10 8 - 10 - 12 - 14 -
ProductionofD.H.W.incontinuousoperationwith∆t45K l/min.
7,8 - 7,6 8 - 7,6 - 8,9 - 9,9 -
ProductionofD.H.W.incontinuousoperationwith∆t40K l/min.
8,8 - 8,6 6,3 - 8,6 - 10,1 - 11,1 -
ProductionofD.H.W.incontinuousoperationwith∆t35K l/min.
10 - 9,8 7,2 - 9,8 - 11,5 - 12,7 -
ProductionofD.H.W.incontinuousoperationwith∆t30K l/min.
11,7 - 11,4 8,4 - 11,4 - 13,4 - 14,9 -
ProductionofD.H.W.incontinuousoperationwith∆t25K(*) l/min.
14,1 - 13,7 10,1 - 13,7 - 16,1 - 17,8 -
Temperatureadjustableindomestichotwatermode °C
35-57 - 35-57 35-57 - 35-57 - 35-57 - 35-57 -
Voltage/Frequencyelectricpowersupply V-Hz
230/50 230/50 230/50 230/50 230/50 230/50
Fuseonthepowersupply A (F)
2 2 2 2 2 2
Maximumabsorbedoutput W
85 138 138 138 138 150
Protection rating IP
X4D X5D X5D X5D X5D X5D
Netweight kg
27,1 24,6 29,6 29,6 28,1 29,6 28,1 34,7 33,2 35,7 -
Grossweight kg
30 27,6 32,5 32,5 31 32,5 31 38 36,2 39 -
(*) mixed