Ferroli RFA - Electrical Heater Coil Performances; Condensing Gas Heating Module Performances; Plant Side Aeraulic Performances

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TECHNICAL DATA AND PERFORMANCES
Plant side aeraulic performances
Available static head - unit without options
The graphs are referred to units operating with air at the temperature of 20°C (density 1,20 kg/m
3
).
Air flow rate [ m
3
/h ]
Available static head [ Pa ]
Upsized
35.1
Standard
Reduced
The internal fan must be selected according to the required air ow rate and to the required total head.
The required total head must be calculated as sum of the required available head and of the pressure drops of the options or
accessories applied to the unit. Such pressure drops must be calculated according to the required air ow rate using the graphs
reported in the present manual.
The graphs reported below show the characteristic aeraulic curves of each model. Such curves are obtained subtracting to the
head supplied by the fan the pressure drops of the standard lters (G4), the pressure drops of the internal coil and the pressure
drops of the internal structure of the unit.
N.B. The curves are referred to units with BASE constructive conguration (VB) without options or accessories and with
dry internal coil.
Model
35.1 - 45.1 - 55.1 70.2 - 90.2 - 110.2 140.2 - 180.2 - 220.2
U.M.
Standard Upsized Standard Upsized Standard Upsized
Nominal heating capacity
max 44,8 54,0 93,4 145,0 186,8 290,0 kW
min 15,5 16,3 31,5 46,3 63,0 92,6 kW
Efciency
max 94,3 93,1 95,3 93,5 95,3 93,5 %
min 105,0 105,0 105,0 105,2 105,0 105,2 %
Gas input
(15°C – 1013 mbar)
max 5,03 6,14 10,37 16,40 20,74 32,8 m
3
/h
min 1,57 1,64 3,17 4,66 6,34 9,32 m
3
/h
Condensate generated 1,45 1,45 2,60 3,87 5,20 7,74 l/h
Available static head exhaust fumes 120 120 120 100 120 100 Pa
Model 35.1 - 45.1 - 55.1 70.2 - 90.2 - 110.2 140.2 - 180.2 - 220.2 U.M.
Standard coil 9,0 18,0 36,0 kW
Upsized coil 18,0 31,5 63,0 kW
The reported data are referred to the module operating with natural gas G20 at 20 mbar supply pressure.
Electrical heater coil performances
Condensing gas heating module performances