3064458_201811
9
Type
FGB-28
FGB-35
FGB-K-28
FGB-K-35
Rated heating output at 80/60 °C
kW
24.4/27.3
1)
31.1/34
1)
24.4/27.3
1)
31.1/34
1)
Rated heating output at 50/30 °C
kW
27.3
34.9
27.3
34.9
Rated heat input
kW
25/28
1)
32/35
1)
25/28
1)
32/35
1)
Lowest heating output (modul.) at 80/60 °C
kW
4.8
6.7
4.8
6.7
Lowest heating output (modul.) at 50/30 °C
kW
5.3
7.5
5.3
7.5
Lowest heat input (modul.)
kW
4.9
6.9
4.9
6.9
Heating flow connection
G
3/4"(DN 20)
3/4"(DN 20)
Heating return connection
G
3/4"(DN 20)
3/4"(DN 20)
DHW connection / DHW circulation
G
1/2“
1/2“
Cold water connection
G
1/2“
1/2“
Gas connection
R
1/2“
1/2“
Balanced flue connection
mm
60/100
60/100
Dimensions Depth
mm
310
310
Width
mm
408
408
Height
mm
720 (incl. device connection flange)
Balanced flue system
Type
B23P, B33P, C13(x), C33(x), C43(x), C53(x),
C63(x), C83(x), C93(x)
Gas category
see table an page 44
Gas supply details
Natural gas E/H (Hi [net cv]=9.5 kWh/m³=34.2 MJ/m³)
m³/h
2.63/2.94
3.36/3.68
2.63/2.94
3.36/3.68
Natural gas LL (Hi [net cv]=8.6 kWh/m³=31.0 MJ/m³)
m³/h
2.90/3.25
3.72/4.06
2.90/3.25
3.72/4.06
LPG (Hi [net cv]=12.8 kWh/m³=46.1 MJ/m³)
kg/h
1.95/2.18
2.5/2.73
1.95/2.18
2.5/2.73
Natural gas supply pressure (permissible min./max.)
mbar
see table on page 44
see table on page 44
LPG supply pressure (permissible min./max.)
mbar
see table on page 44
see table on page 44
Efficiency at rated load at 80/60 °C (Hi[net cv]/Hs[gross cv])
%
98/88
98/88
98/88
98/88
Efficiency at 30 % partial load and TR=30 °C (Hi[net cv]/Hs[gross cv])
%
109/98
109/98
109/98
109/98
Flow temperature. factory setting
°C
75
75
Flow temperature up to approx.
°C
85
85
Max. overall positive pressure. heating circuit
bar
2.5
2.5
Max. residual head for heating circuit: High efficiency pump (EEI<0.20)
1075 l/h pump rate (25 kW at dt=20 K)
mbar
450
450
450
450
1376 l/h pump rate (32 kW at dt=20 K)
mbar
-
350
-
350
Max. permiss. overall positive pressure
bar
10
10
DHW throughput
l/min
2.0-14.4
2.0-14.4
Minimum flow pressure 15502-2-2
bar
0.2
0.3
DHW temperature range (adjustable)
°C
30-65
30-65
Spec. water throughput "D" at ΔT = 30 K
l/min
13.4
16.3
Expansion vessel. total capacity
l
8
8
8
8
Expansion vessel. pre-charge pressure
bar
0.75-0.95
0.75-0.95
0.75-0.95
0.75-0.95
Flue gas temperature 80/60-50/30 at Qmax
°C
85-65
70-50
85-65
70-50
Flue gas temperature 80/60-50/30 at Qmin
°C
50-40
50-40
50-40
50-40
Flue gas mass flow rate at Qmax
g/s
11.2/12.50
14.26/15.50
11.2/12.50
14.26/15.50
Flue gas mass flow rate at Qmin
g/s
2.33
3.25
2.33
3.25
Available gas fan draught at Qmax
Pa
150
160
150
160
Available gas fan draught at Qmin
Pa
8
12
8
12
Flue gas category
G52
G52
NOx class
6
6
Amount of condensate at 50/30 °C
l/h
ca. 1.0
ca. 1.7
ca. 1.0
ca. 1.7
pH value of condensate
ca. 4.3
ca. 4.3
ca. 4.3
ca. 4.3
Power consumption in standby
W
2
2
2
2
Power consumption
W
max. 102
max. 114
max. 102
max. 114
IP rating
IP
IPX4D
IPX4D
IPX4D
IPX4D
Power supply/fuse/MCB protection
230V / 50Hz / 3.15A
230V / 50Hz / 3.15A
Total weight (wall mounted gas condensing boiler)
kg
27
28
27
28
CE ID number
CE-0085CQ0261
CE-0085CQ0261
1) Heating mode / DHW mode
4. Specification