27
Domestic hot water supply ΔT 45°C = 10.1 l/min
Domestic hot water supply ΔT 40°C = 11.3 l/min
Domestic hot water supply ΔT 35°C = 12.9 l/min
Domestic hot water supply ΔT 30°C = 15.1 l/min *
Domestic hot water supply ΔT 25°C = 18.1 l/min *
*Note: water mixed at cock
CTFS-RTFS 32
Gas type
)FBU
input
[kW]
.BYIFBU
output
[kW]
.JOIFBU
output
[kW]
Gas mains pressure [mbar]
Nozzle diameter
[mm/100]
Burner pressure
[mbar]
min.
max.
Natural gas G20
33.0
30.8
14.3
20
1.35
2.8
11.1
Butane Gas G30
33.0
30.8
14.3
29
0.78
7.1
28.7
Propane Gas G31
33.0
30.8
14.3
37
0.78
9.5
25.3
Table 9 - CTFS-RTFS 32 adjustment rates
(FOFSBMDIBSBDUFSJTUJDT
MODEL
CTN-RTN 24
CTN-RTN 28 CTFS-RTFS 24 CTFS-RTFS 28 CTFS-RTFS 32
Device category
-
II2H3+
II2H3+
II2H3+
II2H3+
II2H3+
Burner nozzles
no.
11
13
11
13
15
Minimum CH system pressure
bar
0.5
0.5
0.5
0.5
0.5
Maximum CH system pressure
bar
3.0
3.0
3.0
3.0
3.0
DHW circuit min. pressure
bar
0.5
0.5
0.5
0.5
0.5
DHW circuit max. pressure
bar
6
6
6.0
6.0
6.0
DHW specific flow rate (Δt 30K)
l/min
11.2
13.5
11.6
14.2
15.1
Electric power Supply - Voltage - Frequency
V - Hz
230 - 50
230 - 50
230 - 50
230 - 50
230 - 50
Power mains supply fuse
A
3.15
3.15
3.15
3.15
3.15
Maximum power consumption
W
86
86
125
134
134
Electric protection rating
IP
X5D
X5D
X5D
X5D
X5D
Net weight
kg
33.4
34.4
35.4
36.9
37.9
Natural gas consumption at maximum CH output (*)
m
3
/h
2.69
3.23
2.70
3.23
3.49
Butane gas consumption at maximum CH output
kg/h
2.01
2.41
2.01
2.41
2.60
Propane gas consumption at maximum CH output
kg/h
1.98
2.37
1.98
2.37
2.56
Maximum CH working temperature
°C
83
83
83
83
83
Maximum DHW working temperature
°C
62 (models CTN-CTFS); 65 (RTN-RTFS with external optional cylinder)
Total capacity of expansion vessel
l
7
7
7
7
7
Maximum recommended system capacity (**)
l
150
150
150
150
150
Table 10 - General specifications
(*) Value referred to 15°C - 1013 mbar
(**) Maximum water temperature 83°C, expansion vessel pressure 1 bar
CTN-RTN 24
.BYPVUQVU
.JOPVUQVU
30% load
Casing heat loss
%
1.88
3.14
-
Flue system heat loss with burner on
%
7.52
11.46
-
Flue system mass capacity
g/s
20.73
18.90
-
Flue gas temp. – air temp.
°C
86
63
-
CO
2
value
%
4.9
2.0
-
Boiler efficiency rating
%
90.6
85.4
89.4
Efficiency rating (according to 92/42/EC)
-
NO
x
emission class
-
2
Table 11 - Combustion specifications CTN-RTN 24
CTN-RTN 28
.BYPVUQVU
.JOPVUQVU
30% load
Casing heat loss
%
2.83
2.80
-
Flue system heat loss with burner on
%
7.17
10.7
-
Flue system mass capacity
g/s
21.7
8.9
Flue gas temp. – air temp.
°C
96
68
CO
2
value
%
2.4
5.5
Boiler efficiency rating
%
90.0
86.5
87.8
Efficiency rating (according to 92/42/EC)
-
NO
x
emission class
-
2
Table 12 - Combustion specifications CTN-RTN 24
Summary of Contents for FORMENTERA CTFS 32
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