Installation
13
FLUE GAS DISCHARGE AND COMBUSTION AIR SUCTION
The smoke duct and the connection to the chimney must be built in compliance with the Standards and the Laws in force, with
rigid pipes, resistant to the temperature, condensate, mechanical stresses and sealed.
m
IMPORTANT
The smoke duct must have a diameter equal to or larger than the boiler fitting.
Indicative diagram
Ø C
H6
Description
u.m.
REX
140
160
180
200
240
300
350
H6
mm
880
880
880
945
945
1080
1080
Ø C
mm
400
400
400
500
500
550
550
a
DANGER
–
the chimney must ensure the draught necessary for the boiler operation and provided for by the Technical Standards in
force, considering a “zero” pressure at the connection with the smoke duct
–
unsuitable or badly dimensioned chimneys and smoke ducts can cause condensation problems and adversely affect
the combustion parameters
–
non-insulated drain pipes can lead to a potential risk and the tightness of the joints must be ensured with materials
resistant to the temperatures of the drain flue gases (we recommend at least 250°C)
–
check that the chimney has a suitable draught, does not feature chokes and is clear from debris; check that no drains of
other equipment are connected to the chimney (unless this has been made to serve several utilities).
Cooke Industries - Phone: +64 9 579 2185 Email: [email protected] Web: www.cookeindustries.co.nz
