37
3062347_0309
The gas fired boiler corresponds to protection level IP X4D and can be installed in bathrooms in safety zone 1 and
more widely in accordance with VDE 0100 Part 701.
Boiler certification
1)
Balanced flue B32 required
Gas throughput table for gas volume adjustment according to the volume flow method
If the actual values fall outside these limits, readjust the gas valve (see the respective chapter),
otherwise material losses at the boiler and incorrect functions can result.
Otherwise continue under the point "Removing the test equipment again".
Note
Gas volume adjustment check
If the actual net calorific value is known, the gas volume can be checked with a stop watch and a gas meter
according to the following formula:
Gas throughput [l/min] =
Rated thermal load [kW] x 1 000
Net calorific value H
i
[kWh/m³] x 60
Check nozzle pressure
Boiler
Type
Category
Operating mode
To be connected to
Open
flue
Open
balanced
flue
Chimney
Air /
flue gas
chimney
Balanced
flue system
CGU-2(K)
B
11BS
II
2H3P
X
X
CGG-2(K)
B
32
, C
12x
,
C
32x
, C
42x
II
2H3P
X
1)
X
X
1)
X
X
Gas fired
boilers
(gas fired
combi
boilers)
Thermal
output
kW
Rated
thermal
load
kW
Gas throughput in l/min (1013 mbar; 15 °C)
Natural gas H
with an operational net calorific value of H
i
in MJ/m³ (kWh/m³)
25.9(7.2) 27.4(7.6) 28.8(8.0) 30.2(8.4) 31.7(8.8) 33.1(9.2) 34.6(9.6) 36.0(10.0) 37.4(10.4) 38.9(10.8) 40.3(11.2)
equivalent of a gross calorific value of H
S
in MJ/m³ (kWh/m³)
28.8(8.0) 30.2(8.4) 31.7(8.8) 33.8(9.4) 35.3(9.8) 36.7(10.2) 38.1(10.6) 40.0(11.1) 41.8(11.6) 43.2(12.0) 4.6(12.4)
18.0
20.2
47.0
44.5
42.3
40.3
38.4
36.8
35.2
33.8
32.5
31.3
30.2
15.3
17.2
40.0
37.9
36.0
34.3
32.8
31.3
30.0
28.8
27.7
26.7
25.7
CGU-2(K) -18
13.0
14.8
34.3
32.5
30.8
29.4
28.0
26.8
25.8
24.7
23.7
22.8
22.1
10.9
12.5
28.9
27.4
26.0
24.8
23.7
22.6
21.6
20.9
20.0
19.3
18.6
8.0
8.8
21.3
20.2
19.2
18.3
17.4
16.7
16.0
15.4
14.7
14.2
13.7
24.0
26.5
61.3
58.1
55.2
52.6
50.2
48.0
46.1
44.3
42.4
40.8
39.5
20.4
22.5
52.8
40.0
47.5
45.2
43.2
41.3
39.7
38.0
36.5
35.1
34.0
CGU-2(K) -24
16.0
18.1
41.9
39.7
37.7
35.9
34.3
32.8
31.5
30.2
29.0
27.9
27.0
13.0
14.9
34.5
32.7
31.0
29.6
28.2
27.0
25.9
24.8
23.9
23.0
22.2
10.9
12.0
28.9
27.4
26.0
24.8
23.7
22.6
21.8
20.9
20.0
19.3
18.6
18.0
19.7
45.6
43.5
41.0
39.9
37.3
35.7
34.1
32.8
31.5
30.4
29.3
15.3
16.7
38.6
36.6
34.8
33.1
31.7
30.2
29.0
27.8
26.7
25.8
24.8
CGG-2(K) -18
13.0
14.2
32.8
31.1
29.6
28.2
26.9
25.8
24.8
23.7
22.8
21.9
21.2
10.9
12.0
27.8
26.3
25.0
23.8
22.7
21.8
20.6
20.0
19.3
18.5
17.9
8.0
8.5
19.6
18.6
17.7
16.8
16.1
15.4
14.8
14.2
13.6
13.1
12.7
24.0
26.5
61.3
58.2
55.2
52.6
50.2
48.0
49.0
44.2
42.5
40.9
39.4
20.4
22.5
52.1
49.3
46.9
44.6
42.6
40.8
39.1
37.5
36.6
34.8
33.5
CGG-2(K) -24
16.0
17.7
41.0
38.8
36.9
35.1
33.5
32.1
30.8
29.5
28.4
27.4
26.3
13.0
14.0
32.4
30.7
29.2
27.7
26.5
25.4
24.3
23.3
22.4
21.6
20.9
10.9
11.7
27.0
25.6
24.4
23.2
22.1
21.2
20.3
19.5
18.8
18.1
17.4
Summary of Contents for CGG-2-18
Page 64: ...64 3062347_0309 Notes ...
