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5.9 Connection to a flue system without air inlet (B23, B33)
CAUTION
• Make sure the boiler room complies to the regulatory
requirements for connecting to a flue system in
accordance to B23 or B33
• When connection the boiler to a flue system in
accordance to B23 or B33 the electrical protection
class is IP20 instead of IP44
General assembly
1. Slide the combustion gas outlet pipes into each other.
From the unit, every pipe has to be slid into the previous one.
Mount a non-vertical combustion gas outlet pipe on a slope towards the unit (min. 5mm/m).
5.9.1 Permitted pipe lengths at parallel air supply and flue tube systems
Permitted pipe lengths B23 and B33 when applying Ø80 mm
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