6.5
Air supply/flue gas connections
6.5.1
Classification
The discharge and intake pipes must be certified for the appropriate
configuration and must meet the requirements of the prevailing installation
standards in the country.
The pipes must deliver a maximum pressure drop in compliance with the
values given in the table below.
Tab.14 Configurations and recommendations for the flue system
Configuration
Description
B
23
– B
23P
Connection to a chimney using a connection kit (single pipe in a flue, combustion air taken from the boil
er room).
The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below. The
pipes must be certified for this type of use and for a temperature in excess of 100°C.
Tab.15 Maximum pressure drop
Model
Maximum pressure drop ΔP (Pa)
SIRIUS THREE FS 50
200
SIRIUS THREE FS 70
200
SIRIUS THREE FS 90
200
SIRIUS THREE FS 110
200
C
13
Air/flue gas connection using concentric pipes to a horizontal terminal (so-called forced flue).
The terminal parts of the singled-up discharge pipe must be scheduled inside a 50 cm square.
C
33
Air/flue gas connection using concentric pipes to a vertical terminal (roof outlet).
The terminal parts of the singled-up discharge pipe must be scheduled inside a 50 cm square.
C
43
Air/flue gas connection to a collective flue for sealed boilers.
The chimney or flue gas pipe must be suitable for such use.
C
53
Separate air/flue gas connection using a bi-flow adapter.
The terminal parts of combustion air intake and combustion product discharge pipes must not be plan
ned on opposite walls of the building.
C
63
The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below. The
pipes must be certified for this type of use and for a temperature of more than 100°C. The terminal part
of the flue gas pipe must be certified as complying with the EN 1856-1 Standard.
If installing discharge and intake pipes not supplied by Potterton, these must be certified for the type of
use scheduled and present a maximum pressure drop in line with the values given in the table below.
Tab.16 Maximum pressure drop
Model
Maximum pressure drop ΔP (Pa)
SIRIUS THREE FS 50
270
SIRIUS THREE FS 70
270
SIRIUS THREE FS 90
320
SIRIUS THREE FS 110
370
C
83
Flue gas connection to a collective flue for sealed boilers. The air supply is individual via a terminal
coming from outside the building.
The chimney or flue gas pipe must be suitable for such use.
Caution
The use of any and all other components is prohibited.
Important
Only original components are authorised for connection to the
boiler and for the terminal.
The clear section must comply with the standard.
The chimney must be swept before installing the discharge flue.
6 Installation
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