The Royal Association of Heating, Ventilation and Air Conditioning Technology, abbreviated to ATIC, draws attention to the withdrawal of the 2019 versions of the standards NBN B 61-001:2019 and NBN B 61-002:2019 which came into force on 17 September 2019.
Since then it has become clear that :
some aspects are no longer covered, or are covered incompletely ;
that from the European standards (EN) there are some references to national regulations that do not exist in Belgium;
that the practical feasibility and the control in the field are subject to interpretation.
For this reason, it was decided by the different stakeholders involved in these standards :
the withdrawal of the standards NBN B 61-001:2019 and NBN B 61-002:2019 ;
the publication of a temporary solution in the form of a technical document NBN/DTD ;
and the subsequent publication of new standard(s).
Consequently, during the period from this withdrawal until the new standard(s) is (are) made available, the technical documents NBN/DTD B 61-001:2021 and NBN/DTD B 61-002:2021 are valid as a code of practice:
- NBN/DTD B 61-001 Boiler rooms and chimneys
- NBN/DTD B 61-002 Central heating boilers with a rated output of less than 70 kW - Requirements for their installation space, air supply and flue gas discharge
The publication of both NBN/DTDs and the withdrawal of the 2019 versions are announced via the NBN E-shop (www.nbn.be/shop) in accordance with the Royal Decree of 2 February 2021.
ATIC press release 20210408
More information on the content of the two NBN/DTDs at https://www.atic.be/fr/blog/hvac-nieuws/item/672-retrait-des-normes-nbn-b-61-001-2019-et-nbn-b-61-002-2019