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E.C.A. CA 24 BB - Page 18

E.C.A. CA 24 BB
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);>
The
total
length
Of
hOrizontal air/flue system must
not
exceed 3
m.
Furthermore,
each
extra
90"
concentric
elbow
or
two
pieces
of
45°
concentric
elbow
decreases
the
maximum
length
1m
(fig. 12). The
maximum
number
of
90"
elbow
to
be
used
is
3
Lmax=3m
a)
b)
Lmax=Ll +L2
~2m
I
~
-tttl
L1
Lmax=Ll +L2+L3
~
2 m
C)
18

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