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9
AST 14 C 259/00
Design data and flue duct sizing
CTN 24 AF
Pmax. Pmin.
Load
at 30%
Casing heat loss
%
3.92
4.45
-
Flue system heat loss with burner on
%
5.98
8.15
-
Flue (methane gas) mass flow
g/s
16.72
14.98
-
Flue temp. – air temp.
°C
83
62
-
CO2 value (methane - propane - butane)
%
5.7 – 6.7 – 7.3
3.0 – 3.5 – 3.7
-
Boiler efficiency rating
%
90.1
87.4
89.2
Efficiency rating
(according to 92/42/EC)
-
★★
Nox emission class
-
2
CTFS 24 AF
Pmax. Pmin.
Load
at 30&
Casing heat loss
%
1.01
2.04
-
Flue system heat loss with burner on
%
5.89
10.26
-
Flue (methane gas) massive flow
g/s
14.18
15.21
-
Flue temp. – air temp.
°C
110
87
-
CO2 value (methane - propane - butane)
%
7.2 – 8.6 – 6.8
3.0 – 3.6 – 3.0
-
Boiler efficiency rating
%
93.1
87.7
90.5
Efficiency rating
(according to 92/42/EC)
-
★★★
Nox emission class
-
3
Settings
CTN 24 AF
_Heat
capacity
Thermal Power
MIN-MAX
Supply
pressure
Nozzle
Diameter
Burner pressure
MIN-MAX
(kW) (kW)
(mbar) (mm)
(mbar)
methane gas
G20
24.5
10.5 – 22.1
20
1.27
3.2 – 12.4
butane gas
G30
24.5
10.5 – 22.1
29
0.77
7.2 – 27.1
propane gas
G31
24.5
10.5 – 22.1
37
0.77
9.2 – 35.0
CTFS 24 AF
heat
capacity
Thermal Power
MIN-MAX
Supply
pressure
Nozzle
Diameter
Burner pressure
MIN-MAX
(kW) (kW)
(mbar) (mm)
(mbar)
methane gas
G20
25.5
11.0 – 23.7
20
1.35
3.0 – 11.9
butane gas
G30
25.5
11.0 – 23.7
29
0.80
6.8 – 26.4
propane gas
G31
25.5
11.0 – 23.7
37
0.80
8.6 – 33.9