Technical specifications, Boiler specifications, 7 technical specifications – DE DIETRICH AFC 18 - AFC 24 - AFC 30 User Manual
Page 39: 1 technical specifications
7 Technical specifications
7.1
Technical specifications
7.1.1.
Boiler specifications
Test conditions:
4
CO
2
of 12% at min output and 13% at max output with oil.
4
Maximum operating pressure - Primary circuit (heating water):
3 bar (0.3 MPa)
4
Maximum operating temperature: 85 °C
4
Boiler temperature: Adjustable from 30 to 90 °C
4
Safety thermostat: 105 °C
4
Min flow temperature: 20°C
4
Min. return temperature : 20°C
4
Ambient temperature: 20 °C
Boiler
AFC 18
AFC 24
AFC 30
Minimum
power
Full
power
Minimum
power
Full
power
Minimum
power
Full
power
Power input (Hi)
kW
10.4
17.6
13.9
23.5
17.4
29.4
Nominal output (Pn) at 40/30°C
kW
10.7
18.2
14.3
24.3
17.8
30.3
Nominal output (Pn) at 50/30°C
kW
10.6
18
14.1
24
17.6
30
Nominal output (Pn) at 80/60°C
kW
10
17.1
13.4
22.8
16.7
28.6
LHV efficiency
100 % Nominal
output (Pn) at
80/60°C
%
96.3
97.2
96.4
97.1
95.9
97.4
Flue gas
temperature
°C
<60
<70
<60
<70
<65
<75
100 % Nominal
output (Pn) at
50/30°C
%
101.5
102.1
101.4
102
101.1
101.6
Flue gas
temperature
°C
<40
<45
<40
<45
<45
<50
100 % Nominal
output (Pn) at
40/30°C
%
102.9
103.5
102.6
103.2
102.5
103
Flue gas
temperature
°C
<40
<45
<40
<45
<45
<50
Annual efficiency
Hi
at 75/60°C
%
101.1
100.9
100.7
at 40/30°C
%
105.3
105.1
104.6
Pressure available at the flue gas
nozzle (Pn)
mbar
(1)
0.14
0.22
0.33
Pa
14
22
33
(1) These values are pertinent for flexible flue gas evacuation systems with a diameter of 80 mm (rigid ducts). The length of rigid flue gas
evacuation systems is restricted to 18 metres for technical reasons relating to start-up.
(2) 1 mbar = 10 mmWG = 100 Pa
AFC 18 - AFC 24 - AFC 30
7. Technical specifications
09/01/2014 - 300026440-001-03
38