Lengths Of The Air/Flue Gas Pipes - Potterton SIRIUS THREE FS 50 Installation Manual

6 Installation
Fig.49 Flexible flue system B
L1
L2
Fig.50 Rigid flue system B
L1
L3
L2
44
23p
L3
23p
Caution
For this type of extraction, each boiler must be fitted with a flue
gas valve (non-return valve) Ø 110/110 mm.
Caution
The calculation of the length of the flue gas pipe must be made by
a qualified technician during the system design phase, in
accordance with the requirements of the prevailing standards.
6.5.5

Lengths of the air/flue gas pipes

Warning
The discharge and intake pipes must be certified for the adapted
configuration and their pressure drops must comply with the
values given in the following corresponding table(s).
Caution
Be careful that the discharge pipe outlet for combustible products
is not directed towards a habitation zone.
Configuration B
23p
Ventilation of the premises: in accordance with the NFP 45 – 204 or
DTU 61.1 standard.
Lengths L1, L2 and L3 are obtained with Centrotec pipes covered by CE
marking and the TAD Technical Application Directive.
7609493 - v08 - 24072018