HDG F20 - Hdg F40;50

3 Mode of operation – Technical data
19
*Maximum operating temperatures of up to 110 °C can also briefly
occur.
HDG F40/50
Other information
Combustion duration per filling in terms of
fuel recommendation, approx.
Beech: up to 7 h
Spruce: up to 6 h
Beech: up to 6 h
Spruce: up to 5 h
Beech: up to 5 h
Spruce: up to 4 h
Sound pressure level < 70 dB(A)
Min. Air inlet cross section
150 cm
2
Type of boiler HDG F20 HDG F25 HDG F30
Table 3/1 - HDG F20/25/30 technical data
Type of boiler HDG F40 HDG F50
Performance data (measured according to DIN EN 303-5)
Nominal thermal power 40 kW 50 kW
Minimum thermal power 25 kW 25 kW
Boiler efficiency at nominal thermal power 93.7 % 94.3 %
Electrical power consumption at nominal
thermal power
74 W 63 W
Voltage / frequency AC 1 x 230 V / 50 Hz
Back-up fuse 10 A
General boiler data
Boiler class 5
Maximum permissible operating pressure 3 bar
Maximum supply temperature 95 °C*
Minimum return temperature 60 °C
Water capacity 180 l
Fuel chamber capacity 205 l
Weight 830 kg
Layout data for flue calculation (DIN EN 13384-1)
Flue gas temperature (Tw) at
Nominal thermal power / lowest thermal
power
130 °C / 120 °C 140 °C / 120 °C
Flue gas mass flow at
Nominal thermal power / lowest thermal
power
0.022 kg/s / 0.014 kg/s 0.031 kg/s / 0.014 kg/s
CO
2
content at
Nominal thermal power / lowest thermal
power
14.4 % / 14.5 % 14.6 % / 14.5 %
Required flue draught (Pw) 10 Pa 10 Pa
Diameter of flue pipe connection 150 mm
Height to centre of flue gas connecting pipe 1070 mm
Water-side connections
Supply and return connections (bushing) DN 32, inside thread
Safety heat exchanger connections
(bushing)
DN 15, outside thread
Table 3/2 - HDG F40/50 technical data