Lengths Of The Air/Flue Gas Pipes - Potterton SIRIUS THREE FS 70 Installation Manual

Boiler model
SIRIUS THREE FS 90
SIRIUS THREE FS 110
Italy
All countries except Italy
All countries
Fig.52 Flexible flue system B
L1
L2
7609493 - v11 - 18052020
Maximum number of boilers in cascade
Diameter 125 mm
(200 kW max)
/
/
Ventilation of the premises: in accordance with the UNI CIG 7129–2001 standard.
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.
23p
L3
Diameter 160 mm
(250 kW max)
2
2
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.
7.5.5

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.
B configuration
23p
7 Installation
Diameter 200 mm
(500 kW max)
5
4
51