Beretta NOVELLA 24-31 RAI PV, Руководство по установке

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INST
ALLA
TION
MANUAL
8
2.6
Identification
Novella
boilers are identified by a product
name plate giving the boiler’s serial number,
model and main technical and performance
data.
b
It is essential to specify the correct
model of boiler when ordering spare
parts or requesting technical assistance.
If the name plate or any other means of
clearly identifying the product is defa-
ced, removed or lost, proper installation
and servicing may be rendered difficult.
GAS FUELLED BOILER
OBLIGATORY GROUND CONNECTION
Model
Code
Year
Heat input at
furnace (Qn/Hi)
Boiler water
capacity
Useful heat
output (Pn)
Heat exchanger
surface area
Maximum working
pressure (mwp)
Maximum admissible
temperature
Power supply
Maximum current
draw
NOx class
Maximum energy
consumption
Gas supply pressure
CLASS OF BOILER
TYPE OF BOILER
COUNTRY OF DESTINATION
Index of protection
PIN Code
Serial No.
PARAMETER 24 RAI 31 RAI 45 RAI
Lower Wobbe index (at 15°C-1013 mbar) G20 (MJ/m3) 45,5
(at 15°C-1013 mbar) G30 (MJ/m3) 80,9
(at 15°C-1013 mbar) G31 (MJ/m3) 70,9
Main burner
Number of nozzles 3 4 6
Nozzle diameter G20 Ø mm 2,40 2,40 2,40
G30 Ø mm 1,50 1,50 1,45
G31 Ø mm 1,50 1,50 1,45
Nozzle pressure (downstream from valve in central hea-
ting only mode)
G20
mbar
Δ
p
13,5 13,5 12,7
mm H2O Δ p 138 138 129
G30 mbar
Δ
p 28,4 28,0 27,8
mm H2O
Δ
p 289 285 283
G31
mbar
Δ
p
36,5 34,7 35,7
mm H2O Δ p 372 354 364
Maximum gas flow rate, CH (*) G20 m3/h 2,80 3,50 5,10
G30 kg/h 2,09 2,70 3,92
G31 kg/h 2,05 2,66 3,86
(*) Temperature 15°C; Pressure 1013 mbar.
Fig. 2.4