A.O. Smith BFC Cyclone 28 Installation, User And Service Manual page 106

High efficient condensing water heater
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Description
Gas category 2H: G20
Diameter of the venturi
restrictor
Nominal Load (gross)
Nominal output
Supply pressure
CO
(full load)
2
O
(full load)
2
Gas consumption
(1)
NO
-emission
x
Mass flow rate flue gases
(minimal load)
Mass flow rate flue gases
(nominal load)
Flue gas temperature
(nominal load)
Gas category 3P: G31
Diameter of the venturi
restrictor
Nominal Load (gross)
Nominal output
Supply pressure
Gas control valve pressure
CO
(full load)
2
O
(full load)
2
Gas consumption
NO
-emission
x
Mass flow rate flue gases
(minimal load)
Mass flow rate flue gases
(nominal load)
Flue gas temperature
(nominal load)
1 - Based on 1013.25 mbar and 15°C.
106
Unit
BFC 80
mm
8.60
kW
86.6
kW
84.2
mbar
20
vol%
8.9 ± 1.0
vol%
5.0 ± 1.8
3
8.3
m
/h
mg/kWh GCV
34
kg/h
52.8
kg/h
141.9
ºC
52
mm
6.60
kW
84.8
kW
84.2
mbar
37 / 50
mbar
-
vol%
9.6 ± 1.0
vol%
6.3 ± 1.8
kh/h
6.1
mg/kWh GCV
38
kg/h
53.5
kg/h
149.1
ºC
52
BFC 100
BFC 120
8.60
8.60
105.5
128.8
100.7
121.8
20
20
8.9 ± 1.0
8.9 ± 1.0
5.0 ± 1.8
5.0 ± 1.8
10.1
12.3
36
37
52.8
52.8
172.9
211.1
55
60
6.60
6.60
103.3
126.1
100.7
121.8
37 / 50
37 / 50
-
-
9.6 ± 1.0
9.6 ± 1.0
6.3 ± 1.8
6.3 ± 1.8
7.4
9.0
39
39
53.5
53.5
181.6
221.7
55
60
Installation, Maintenance and Service part

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