Ariston microSYSTEM 21 RFFI Installation Instructions Manual - Page 11
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In addition, it is also possible to use a split (twin pipe)
system by fitting a special adaptor to the flue connector
and using the aperture for the air vent intake located on
the top part of the combustion chamber.
To utilise the air intake it is necessary to:
1. Remove the bottom of the air intake by cutting it with a
suitable knife (see F
. 2.7);
IG
2. Insert the elbow into the air intake until it reaches the
lower end. (There is no need to use gaskets or sealing
compounds).
F
. 2.8
IG
C
S
OAXIAL
YSTEMS
F
. 2.9
IG
Ø 80 mm
F
. 2.7
IG
11
I
!
MPORTANT
For all flue systems, a restrictor
must always be inserted into the
boiler's flue connector; the
restrictor must be Ø 46 or Ø 41 in
diameter depending on the length
of piping indicated in T
F
2.9 and F
2.10 illustrate some
IG
IG
of the various designs for coaxial or
twin pipe flue systems.
For
fur ther
infor mation
discharge/ventilation accessories,
see the F
P
A
L U E
I P E
M
.
ANUAL
2.1.
ABLE
on
C C E S S O R I E S