Installation
14
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 F
7*
8*
9*
10* 12* 15* 20* 25* 30* 35* 40
50
62
75
85
95 100 120 130
H6
mm 415 415 415 415 415 440 440 440 490 490 500 610 610 675 675 675 750 750 750
Ø C
mm 200 200 200 200 200 250 250 250 250 250 250 300 300 350 350 350 400 400 400
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
