0
3.6
General characteristics
KC model
KC 24
KC 28
KC 32
Equipment category
-
IIH3P
IIH3P
IIH3P
Minimum CH system pressure
bar
0.5
0.5
0.5
Maximum CH system pressure
bar
3
3
3
Minimum DHW system pressure
bar
0.5
0.5
0.5
Maximum DHW system pressure
bar
8
8
8
DHW specific flow rate (ΔT 30K)
l/min
13.5
14.4
16.5
Electric power supply – voltage ~ frequency
V ~ Hz
30 ~ 50
30 ~ 50
30 ~ 50
Power mains supply fuse
A
Maximum power consumption
W
145
145
145
Electric protection rating
IP
X4D
X4D
X4D
Net weight
kg
38.5
39.
40.0
Methane gas consumption at maximum CH input (*)
ft
3
/h
88.6
97.9
117.4
Propane gas consumption at maximum CH input
ft
3
/h
34.3
37.9
45.4
Maximum CH working temperature
°C
83
83
83
Maximum DHW working temperature
°C
6
6
6
Total capacity of expansion vessel
l
10
10
10
Maximum recommended CH system capacity (**)
l
00
00
00
Table 9 - KC model general specifications
(*) Value referred to 15 °C - 1013 mbar
(**) Maximum water temperature 83 °C. expansion vessel pressure 1 bar
KC 24
Max. heat output
Min. heat output
30% heat output
Casing heat loss with burner on
%
1.4
.1
-
Casing heat loss with burner off
%
0.
Chimney heat loss with burner on
%
.6
.
-
Flue gas system mass flow rate
g/s
1.4
3.1
-
Flue gas temp. – air temp
°C
67
49
-
Maximum heat output efficiency rating (Net) (60/80°C)
%
97.5
-
-
Maximum heat output efficiency rating (Net)(30/50°C)
%
104.8
-
-
Minimum heat output efficiency rating (Net) (60/80°C)
%
-
95.7
-
Minimum heat output efficiency rating (Net) (30/50°C)
%
-
106.9
-
30% heat output efficiency rating
%
-
-
109.1
Efficiency rating (according to 92/42/CE)
-
SEDBUK classification
-
A
(90.0 %)
NOx emission class
-
5
Table 10 - KC 4 model combustion rates
KC 28
Max. heat output
Min. heat output
30% heat output
Casing heat loss with burner on
%
0.9
.3
-
Casing heat loss with burner off
%
0.3
Chimney heat loss with burner on
%
.5
.
-
Flue gas system mass flow rate
g/s
13.9
3.1
-
Flue gas temp. – air temp
°C
51.
45
-
Maximum heat output efficiency rating (Net) (60/80°C)
%
97.53
-
-
Maximum heat output efficiency rating (Net)(30/50°C)
%
105.4
-
-
Minimum heat output efficiency rating (Net) (60/80°C)
%
-
95.5
-
Minimum heat output efficiency rating (Net) (30/50°C)
%
-
106.7
-
30% heat output efficiency rating
%
-
-
108.9
Efficiency rating (according to 92/42/CE)
-
SEDBUK classification
-
A
(90.0 %)
NOx emission class
-
5
Table 11 - KC 8 model combustion rates
Summary of Contents for Tahiti Condensing 24 kW Combi (KC)
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