Beretta Mynute J 24 C.A.I. E User Manual

8
ENGLISH
* I Test conducted with 0.5 metre length of Ø 130 mm (24 C.S.I.) - Ø 140 mm (28 C.S.I.) diam. pipe
The data expressed must not be used to certicate the system; for certication use the data indicated in the “System handbook” measured during rst ignition.
TECHNICAL DATA
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

Multigas table
     
Main burner:
24 C.A.I. 12 nozzles; 28 C.A.I. 14 nozzles Ø mm 1.35 1.30 0.77 0.77 0.77 0.77
HC maximum gas capacity Sm
3
/h 2.82 3.37 2.10 2.51 2.07 2.48
kg/h
DHW maximum gas capacity Sm
3
/h 2.82 3.37 2.10 2.51 2.07 2.48
kg/h
HC minimum gas capacity Sm
3
/h 1.10 1.13 0.82 0.84 0.81 0.83
kg/h
DHW minimum gas capacity Sm
3
/h 1.10 1.13 0.82 0.84 0.81 0.83
kg/h
Maximum pressure downstream CH valve mbar 10.10 10.40 28.00 28.00 36.00 36.00
mm H2O 102.99 106.05 285.52 285.52 367.10 367.10
Maximum pressure downstream DHW valve mbar 10.10 10.40 28.00 28.00 36.00 36.00
mm H2O 102.99 106.05 285.52 285.52 367.10 367.10
Minimum pressure downstream CH valve mbar 1.70 1.40 4.70 3.80 6.10 4.80
mm H2O 17.34 14.28 47.93 38.75 62.20 48.95
Minimum pressure downstream DHW valve mbar 1.70 1.40 4.70 3.80 6.10 4.80
mm H2O 17.34 14.28 47.93 38.75 62.20 48.95
Lower Wobbe index (at 15°C-1013 mbar) MJ/m
3
S 45.67 80.58 70.69
Lower heat Value MJ/m
3
34.02 116.09 88
Supply nominal pressure mbar (mm H2O) 20 (203.9) 28-30 (285.5-305.9) 37 (377.3)
Supply minimum pressure mbar (mm H2O) 13.5 (137.7)

Heating//domestic hot water nominal thermal output (Hi) kW 26.70 31.90
kcal/h 22,962 27,434
Heating/domestic hot water nominal thermal power kW 24.11 28.97
kcal/h 20,735 24,910
Heating reduced thermal output (Hi) kW 10.40 10.70
kcal/h 8,944 9,202
Heating reduced thermal power kW 8.89 9.14
kcal/h 7,647 7,859
Domestic hot water reduced thermal output (Hi) kW 10.40 10.70
kcal/h 8,944 9,202
Domestic hot water reduced thermal power kW 8.89 9.14
kcal/h 7,647 7,859
Pn max - Pn min working efciency % 90.3-85.5 90.8-85.4
30 % working efciency % 88.6 89.7
Electric power W 85 85
Category II2H3+ II2H3+
Country of destination - -
Power supply voltage V - Hz 230-50 230-50
Protection level IP X5D X5D
Chimney and skirt losses with burner off % 0.07-0.80 0.07-0.80
CH operation
Maximum pressure - temperature bar 3-90 3-90
Minimum pressure for standard operation bar 0.25-0.45 0.25-0.45
Selection eld of CH water temperature °C 40-80 40-80
Pump: maximum head available mbar 300 300
for system capacity l/h 1000 1,000
Membrane expansion tank l 8 8
Expansion tank pre-charge bar 1 1
DHW operation
Maximum pressure bar 6 6
Minimum pressure bar 0.20 0.20
Hot water quantity with ∆t 25°C l/min 13.8 16.6
with ∆t 30°C l/min 11.5 13.8
with ∆t 35°C l/min 9.9 11.9
DHW minimum capacity l/min 2 2
Selection eld of DHW temperature °C 37-60 37-60
Flow regulator l/min 10 12
Gas pressure
Methane gas nominal pressure (G 20) mbar 20 20
LGP liquid gas nominal pressure (G 30 / G 31) mbar 28-30/37 28-30/37
Hydraulic connections
HC input - output Ø 3/4" 3/4"
DHW input-output Ø 1/2" 1/2"
Gas input Ø 3/4" 3/4"
Boiler dimensions
Height mm 740 740
Width mm 400 450
Depth mm 328 328
Boiler weight kg 30 30
Flow rate (G20)
Air capacity Nm
3
/h 46,191 58,815
Flue gas capacity Nm
3
/h 43,514 55,616
Mass ow of ue gas (max-min) gr/s 15.71-14.99 20.06-18.36
Flue gas exhaust pipes
Diameter mm 130 140
NOx class 2 class 3
Emission values at max. and min. rate of gas G20*
Maximum CO s.a. lower than p.p.m. 90 110
CO2 % 6.90 6.45
NOx s.a. lower than p.p.m. 160 170
∆t ue gases °C 112 110
Minimum CO s.a. lower than p.p.m. 80 80
CO2 % 2.80 2.35
NOx s.a. lower than p.p.m. 120 110
∆t ue gases
°C 77 67
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Beretta Mynute J 24 C.A.I. E Specifications

General

Brand	Beretta
Model	Mynute J 24 C.A.I. E
Category	Boiler
Language	English