A.O. Smith Cyclone BFC - 30 Installation And Service Manual page 22

3
3.4.3
Description II
2H3+
Gas category 2H: G20 - 20 mbar
Injector orifice diameter
(1) = Blank plate
(2) = Burner pressure regulator
Nominal load (gross calorific value)
Nominal output
Supply pressure
Burner pressure
(*)
Gas consumption
General 3+
Injector orifice diameter
(1) = Blank plate
(2) = Burner pressure regulator
Gas category: G30-30 mbar (butane)
Nominal load (gross calorific value)
Nominal output
Supply pressure
(†)
Burner pressure
(*)
Gas consumption
Gas category: G31-37 mbar (propane)
Nominal load (gross calorific value)
Nominal output
Supply pressure
(†)
Burner pressure
(*)
Gas consumption
(*) Based on 1013.25 mbar and 15 °C.
(†) If using a blank plate instead of a burner pressure regulator, it is assumed that the burner pressure is equal to
the supply pressure. In practice, however, the burner pressure will be lower.
22
Installation
Gas data
Gas data
Unit BFC
28
mm 4.90
1 or 2 2
kW 32.1
kW 30.5
mbar 20
mbar 8.5
3
m /h 3.1
mm 2.50
1 or 2 1
kW 30.7
kW 29.8
mbar 30
mbar -
kg/h 2.2
kW 29.0
kW 28.1
mbar 37
mbar -
kg/h 2.1
BFC BFC
30 50
5.10 7.00
2 2
34.5 52.6
32.7 48.8
20 20
8.5 8.5
3.3 5.0
2.60 3.40
1 1
32.8 50.6
31.8 48.1
30 30
- -
2.4 3.7
30.9 50.3
29.8 47.7
37 37
- -
2.2 3.6
Instruction manual BFC
is
BFC
60
7.10
2
63.2
59.6
20
11.5
6.0
3.80
1
59.4
57.4
30
-
4.3
59.1
56.9
37
-
4.2