IDEAL EVO S 50 Installation And Servicing page 22

EVO S - Installation and Servicing
4.3.2. Connection to a B23P chimney
IMPORTANT:
IMPORTANT:
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B23P type connection:
Air from the installation premises, gas evacuation through the roof via a
pressurised duct.
Check that the boiler installation premises have high and low
ventilation, that it conforms to current regulations and that it is not
obstructed.
The use of the "Chimney Adaptor" accessory is mandatory to connect
a VARFREE boiler to a B23 chimney duct. The table below represents
the accessories available for each boiler type.


Filtering cloth
A indicates the height of the of the chimney
adapter when fully inserted relative to the
upper panel of the boiler.
figure 7 - Sizing recommendations
U0561516-#
00RNO0333-B (U0625869)