4 | Technology
20 M2320121_en | Installation instructions Pellet boiler PECO
4.2 Connections
Item Description PECO
15-20 25-35
1 Boiler flow connection 1” IT
2 Boiler return connection 1” IT
3 Drainage connection 1/2“ IT
4 Supply air connection (external diameter) 80 mm 100 mm
5 Flue pipe connection 129 mm 149 mm
6 Pellet suction line connection 50 mm
7 Return-air line connection 50 mm
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