7
general information
GEN. NO
TES
Model Name
CLAS SYSTEM
21 FF
CLAS SYSTEM
28 FF
CE certifi cation (pin)
1312BR4793
1312BR4793
Boiler type
C12-C32-C42-C52-B22-B32
ELEC
TRICAL PERFORM
ANCE
Max/min nominal heat input(Hi)
kW
25.8 / 11.0
30.0 / 13.0
Max/min nominal heat input (Hs)
kW
28.7 / 12.2
33.3 / 14.4
Max/min nominal heat input for hot water (Hi)
kW
27 / 11.0
31.3 / 13.0
Max/min nominal heat input for hot water (Hs)
kW
30 / 12.2
34.8 / 14.4
Heat output: max/min
kW
24.2 / 9.8
28.1 / 11.6
Combustion effi
ciency (at fl ue) Hi/Hs
%
95.0
93.9
Gross effi
ciency of nominal heat input (60/80 °C) Hi/Hs
%
94.8 / 84.5
93.6 / 84.3
Gross effi
ciency at 30 % at 47°C Hi/Hs
%
93.6 / 84.3
93.2 / 83.9
Gross effi
ciency at minimum power Hi/Hs
%
89.2 / 80.3
89.3 / 80.4
Number of effi
ciency stars (Directive 92/42/EEC)
stars
***
***
Rating Sedbuk
class
D D
Ma. heat loss to the casing (∆T = 50°C)
%
0.4
0.3
Heat loss through the fl ue when burner on
%
5.0
6.1
Heat loss through the fl ue when burner off %
0.4
0.4
EMISSIONS IN C.H.
Residual discharge head
mbar
100
104
Nox class
class
3
3
Flue fumes temperature (G20)
°C
98
114
CO2 content
2
(G20)
%
6.6
6.4
CO content (0 %0
2
)
ppm
40
92
O2 content2
(G20)
%
8.7
8.9
Max Discharge of Products of Combustion (G20)
Kg/h
97
67.5
Excess air
%
62.8
74
HEA
TING CIRCUIT
Load losses water side (max) ∆T=20°C
mbar
200
200
Residual head for the system
bar
0.25
0.25
Expansion vessel pre-charged pressure
bar
1
1
Maximum central heating circuit pressure
bar
3
3
Expansion vessel capacity
l
8
8
Central heating temperature: max/min
°C
85 / 35
85 / 35
DOMESTIC HO
T
W
A
TER CIRCUIT
Domestic hot water temperature max/min (Approx)
°C
60 / 36
60 / 36
ROOMELEC
TRICAL
DA
TA
Power supply voltage/frequency
V/Hz
230/50
230/50
Power consumption
W
127
136
Minimum operating room temperature
°C
+5
+5
Electric system grades of protection
IP
X5D
X5D
Weight
kg
31
31
Dimensions (W x H x D) :
mm
400/770/315
400/770/315
