HDG F20 - Rear and Side Views HDG F20-50

3 Mode of operation – Overview
15
REAR AND SIDE VIEWS HDG F20-50
1 Safety heat exchanger inlet (DN 15 male)
2 Immersion sleeve for boiler temperature and STL sensor
3 Safety heat exchanger outlet (DN 15 male)
4 Connection of immersion sleeve for thermal
safety device (DN 15 IG)
5 Supply connection (DN 32 inside thread)
6 Cleaning motor (optional)
7 Ignition fan (optional)
8 Filling/draining connection (DN 15 IG)
9 Flue pipe connection 150 mm
10 Flue gas temperature sensor
11 Lambda sensor
12 Flue gas fan
13 Immersion sleeve for return temperature sensor
14 Return connection (DN 32 inside thread)
Figure 3/3 - Rear and side views HDG F20-50
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