Green Heating Technology
30
SERVICE
Manual
City Class F-FR
Technical data
FR
U.M.
City Class 20 F
City Class 25 F
City Class 30 F
City Class 35 F
Gas type
G20
G30/G31
G20
G30/G31
G20
G30/G31
G20
G30/G31
Class
II
2H3+
II
2H3+
II
2H3+
II
2H3+
Type
B22 - C12 - C32 - C42 - C52 - C62 - C82
Working temperature
range (min÷max)
°C
0 ÷ +60
0 ÷ +60
0 ÷ +60
0 ÷ +60
Max heat input (Qn)
kW
21.0
20.5
25.7
25.5
30.0
29.0
34.5
34.5
Min heat input (Qr)
kW
9.5
10.0
10.0
10.2
12.0
13.0
13.6
13.6
Max heat output (Pn)
kW
19.5
19.0
24.0
23.8
28.2
27.3
32.4
32.4
Min heat output (Pr)
kW
8.1
8.5
8.5
8.6
10.2
11.1
11.7
11.7
NO
X
Class
3
3 / 3
3
3 / 3
3
3 / 3
3
3 / 3
CO at 0% O
2
(at Qn)
ppm
69.7
87.5 / 60.9
91.1
119.7 / 79.4
84.8
103.7 / 61.3
85.2
102.5 / 76.9
CO
2
at nominal input
%
5.5
6.4 / 6.3
7.2
8.1 / 7.9
7.5
8.4 / 8.0
6.9
7.9 / 7.7
Flue temperature (at Qn)
°C
118
110 / 112
119
111 / 113
122
121 / 120
118
123 / 122
Flue mass flow rate (at
Qn)
kg/h
53.74
53.62 / 54.22
51.93
53.21 / 53.82
58.58
57.11 / 59.11
72.37
72.11 / 74.16
Efficiency
Nominal efficiency (at Qn)
%
92.7
93.3
94.0
94.0
Efficiency at 30% Qn
%
90.5
91.0
91.5
92.0
Heating
Temperature selection
range (min÷max)
°C
35÷80
35÷80
Expansion vessel
l
8
8
8
10
Exp.vessel pre-loading
pressure
bar
1
1
1
1
Loss of water pressure
switch off / on pressure
bar
0.4 / 0.9
(±0.2)
0.4 / 0.9
(±0.2)
0.4 / 0.9
(±0.2)
Max working pressure
°C
3
3
3
3
Max system temperature
°C
85
85
85
85
Anti-freezing function
temperature on / off
°C
5 / 30
5 / 30
5 / 30
5 / 30
Hot water
Temperature selection
range (min÷max)
°C
30÷60
30÷60
30÷60
30÷60
Electrical data
Voltage / frequency
(nominal voltage)
V / Hz
220÷240 / 50
(230V)
220÷240 / 50
(230V)
220÷240 / 50
(230V)
220÷240 / 50
(230V)
Power consumption
W
103
103
132
145
Level of protection
IP X5D
IP X5D
IP X5D
IP X5D
(follows)