19
Flue duct
or chimney
Combuson
products
test point
min. 1000 mm
max. 2500 mm
Minimum
slope 5%
D
min.
2 x D
NO
NO
YES
00031 00
B
11BS
Model Diameter D of the ue pipe
City Basic 24 C 130 mm
The boiler is ed with a safety thermostat for the ue ow detecon, that triggers when the
combuson products reow into the room. This device must never be bypassed or put out of
Combuson products could lead to intoxicaon, permanent damage and death. If the
In case of repeated intervenons of the device (and consequent boiler locks), check that the air
supply / room venlaon system and the Flue Products Outlet System are ecient and made
according to the laws in force.
(by momentarily
In case of ue outlet on wall, the posions and the distances prescribed by the regulaon mist be re-
spected (see "Flue terminals posioning" on page 20).