FAMILY
32
TECHNICAL DATA
DESCRIPTION
UM
FAMILY Cx
25 KIS
30 KIS
35 KIS
G20
G31
G20
G31
G20
G31
Heating
Rated heat input
kW
20,00
25,00
30,00
kcal/h
17.200
21.500
25.800
Nominal heat output (80°/60°)
kW
19,48
24,33
29,22
kcal/h
16.753
20.920
25.129
Nominal heat output (50°/30°)
kW
21,24
26,50
32,07
kcal/h
18.266
22.790
27.580
Reduced heat input
kW
3,60
5,00
4,90
7,00
4,90
7,00
kcal/h
3.096
4.300
4.214
6.020
4.214
6.020
Reduced heat output (80°/60°)
kW
3,50
4,86
4,77
6,83
4,77
6,83
kcal/h
3.006
4.180
4.104
5.870
4.104
5.870
Reduced heat output (50°/30°)
kW
3,81
5,30
5,13
7,34
5,13
7,34
kcal/h
3.276
4.558
4.412
6.315
4.412
6.315
Nominal Range Rated heat output (Qn)
kW
20,00
25,00
30,00
kcal/h
17.200
21.500
25.800
Minimum Range Rated heat output (Qm)
kW
3,60
5,00
4,90
7,00
4,90
7,00
kcal/h
3.096
4.300
4.214
6.020
4.214
6.020
DHW
Rated heat input
kW
25,00
30,00
34,60
kcal/h
21.500
25.800
29.756
Nominal heat output (*)
kW
26,25
31,50
36,33
kcal/h
22.575
27.090
31.244
Reduced heat input
kW
3,60
5,00
4,90
7,00
4,90
7,00
kcal/h
3.096
4.300
4.214
6.020
4.214
6.020
Reduced heat output (*)
kW
3,28
5,00
4,54
7,00
4,54
7,00
kcal/h
2.822
4.300
3.905
6.020
3.905
6.020
Useful efficiency Pn max - Pn min (80°/60°)
%
97,4 - 97,1
97,3 - 97,4
97,4 - 97,4
Combustion efficiency
%
97,8
97,6
97,7
Useful efficiency Pn max - Pn min (50°/30°)
%
106,2 - 105,8
106,0-104,7
106,9 - 104,7
Useful efficiency 30% Pn max (30° return)
%
108,4
108,1
108,2
Efficiency at average P Range Rated (80°/60°)
%
97,3
97,0
97,5
Efficiency at average P Range Rated 30% (30° return)
%
108,5
108,4
108,3
Overall electric output (maximum heating output)
W
87
84
96
Overall electric output (maximum domestic hot water output)
W
97
95
111
Circulator electric power (1.000 l/h)
W
51
51
51
Category ● Country of destination
II2H3P
●
(+)
II2H3P
●
(+)
II2H3P
●
(+)
Voltage supply
V - Hz
230-50
230-50
230-50
Protection level
IP
X5D
X5D
X5D
Stop loss
W
34
32
32
Losses at the flue with burner off - burner on
%
0,10 - 2,23
0,08 - 2,39
0,06 - 2,33
Heating operation
Maximum pressure
bar
3
3
3
Minimum pressure for standard operation
bar
0,25-0,45
0,25-0,45
0,25-0,45
Maximum temperature
°C
90
90
90
Selection field of heating water temperature
°C
20/45 ÷ 40/80
20/45 ÷ 40/80
20/45 ÷ 40/80
Pump: maximum head available
mbar
390
390
390
for system capacity
l/h
1.000
1.000
1.000
Membrane expansion tank
l
10
10
10
Expansion tank pre-loading (heating)
bar
1
1
1
DHW operation
Maximum pressure
bar
8
8
8
Minimum pressure
bar
0,15
0,15
0,15
Quantity of hot water with Δt 25° C
l/min
15,1
18,1
20,8
with Δt 30° C
l/min
12,5
15,1
17,4
with Δt 35° C
l/min
10,8
12,9
14,9
DHW minimum capacity
l/min
2
2
2
Selection field of DHW temperature
°C
37-60
37-60
37-60
Flow regulator
l/min
10
12
14
