Radiant SFK 28, Instructions For Installation, Use And Maintenance Manual, Page: 41 / 68

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SFK 28 - RAD - ING - Manuale - 1801.1_V3
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2.2.7. TECHNICAL DATA
Model SFK 28
CE certification no. 0476CQ0134
Gas category II2H3B/P
Discharge type type B2 3p-B 3 3-C13-C 3 3-C 4 3-
C53-C63-C83-C93
Maximum nominal heat capacity in domestic circuit kW 27
Minimum nominal heat capacity in domestic circuit kW 3.7
Fumes temperature at nominal heat capacity °C 55
Fumes temperature at minimum heat capacity °C 32
CO2 at nominal heat capacity - G20 % 9,3 - 9,1
CO2 at minimum heat capacity - G20 % 9,0 - 8,8
CO2 at nominal heat capacity - G30 % 11,5 - 11,3
CO2 at minimum heat capacity - G30 % 10,75 - 10,65
CO2 at nominal heat capacity - G31 % 10,4 - 10,2
CO2 at minimum heat capacity - G31 % 9,95 - 9,85
CO at nominal heat capacity ppm 72
Fumes mass at nominal heat capacity g/s 11.93
Fumes mass at minimum heat capacity g/s 1.69
Weighted Nox (0% O2) ppm ppm 22
Weighted Nox (0% O2) mg/kWh mg/kWh 39
Domestic circuit
Adjustable domestic temperature °C 35-60
Maximum pressure for domestic circuit bar 8
Minimum pressure for domestic circuit bar 0.5
Specific capacity in continuous service - Δt 30°C litres/min 14.05
Dimensional characteristics
Width mm 410
Depth mm 307
Height mm 642
Gross weight Kg 37
Water connections
Cold water Ø 3/4”
Hot water Ø 3/4”
Gas Ø 3/4”
D.H.W. circulating loop connection Ø 3/4”
Fume exhaust fittings
Maximum electric fan pressure available Pa 76
Minimum electric fan pressure available Pa 4
Max discharge length Ø60/100 - Hor Co-ax m 6
Max discharge length Ø80/125 - Hor Co-ax m 8
Max discharge length Ø50/50 - Hor Split m 6
Max discharge length Ø60/60 - Hor Split m 18
Max discharge length Ø80/80 - Hor Split m 60
Max discharge length Ø50 - Hor duct m 4
Max discharge length Ø60 - Hor duct m 16