Ferroli DIVA F28, Instructions For Use, Installation And Maintenance

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DIVA F28/F32/F37
21 EN
5.3 Water circuit
fig. 25 - Heating circuit
fig. 26 - DHW circuit
5.4 Technical data table
The column on the right gives the abbreviation used on the technical data plate.
56
27
14
32
38
11 10 8 9
34
95
241 42
114 36
194
49
74
56
27
14
74
32
38
11 10 8 9
95
241 42
114 36
194
34
49
Data Unit DIVA F28 DIVA F32 DIVA F37
Max. heating capacity kW 30.0 34.4 39.7 (Q)
Min. heating capacity kW 11.5 11.5 14.0 (Q)
Max. Heat Output in heating kW 28.0 32.0 37.0 (P)
Min. Heat Output in heating kW 9.9 9.9 12.9 (P)
Max. Heat Output in hot water production kW 32.0 32.0 37.0
Min. Heat Output in hot water production kW 9.9 9.9 12.9
Efficiency Pmax (80-60°C) % 93.1 93.1 93.2
Efficiency 30% % 91.0 91.0 91.0
NOx emission class - 3 (<150 mg/kWh) (NOx)
Burner nozzles G20 no. x Ø 15 x 1.35 15 x 1.35 17 x 1.35
Gas supply pressure G20 mbar 20 20 20
Max. gas pressure at burner G20 in hot water prod. mbar 12.0 12.0 12.0
Max. gas pressure at burner G20 in heating mbar 9.2 12.0 12.0
Min. gas pressure at burner G20 mbar 1.5 1.5 1.5
Max. gas delivery G20 in heating
nm
3
/h
3.17 3.64 4.20
Min. gas delivery G20
nm
3
/h
1.22 1.22 1.48
Burner nozzles G31 no. x Ø 15 x 0.79 15 x 0.79 17 x 0.79
Gas supply pressure G31 mbar 37.0 37.0 37.0
Max. gas pressure at burner G31 in hot water prod. mbar 35.0 35.0 35.0
Max. gas pressure at burner G31 in heating mbar 27.0 35.0 35.0
Min. gas pressure at burner G31 mbar 5.0 5.0 5.0
Max. gas delivery G31 in heating kg/h 2.35 2.69 3.10
Min. gas delivery G31 kg/h 0.90 0.90 1.10
Max. working pressure in heating bar 3 3 3 (PMS)
Min. working pressure in heating bar 0.8 0.8 0.8
Max. heating temperature °C 90 90 90 (tmax)
Heating water content liters 1.2 1.2 1.5
Heating expansion tank capacity liters 10 10 10
Heating expansion tank prefilling pressure bar 1 1 1
Max. working pressure in hot water production bar 9 9 9 (PMW)
Min. working pressure in hot water production bar 0.25 0.25 0.25
DHW flow rate Δ t 25°C l/min 18.3 18.3 21.1
DHW flow rate Δ t 30°C l/min 15.2 15.2 17.6 (D)
Protection rating IP X5D X5D X5D
Power supply voltage V/Hz 230V/50Hz 230V/50Hz 230V/50Hz
Electrical power input W 135 135 135
Empty weight kg 35 35 37
Type of unit C
12
-C
22
-C
32
-C
42
-C
52
-C
62
-C
72
-C
82
-B
22
cod. 3541E064 - Rev. 00 - 02/2017