BORETTI CFBG902AN Instruction On Mounting And Use Manual page 221

The group of attachments (fig. 9.3) is
made up of:
• 1 nut "A" ( external cylindrical thread
ISO 228-1)
• 1 sealing washer "D"
• 1 conical connection "B" (internal
cylindrical thread ISO 228-1, external
conical thread ISO 7-1)
• 1 Butane/Propane Gas connector "C".
A
D
B
Fig. 9.3
Cookers must be connected using R
materials downstream from the AGB/
BGV certificated gas stop-cock, except for
single unit cookers that are not built-in.
As a general rule, cookers are connected
downstream from the gas stop-cock, by:
• copper pipes having an appropriate
wall thickness, or;
• steel pipes, or;
• flexible R metal pipes with AGB
HT
certification, fitted in such a way that
they will not be crushed or pulled
during use. Their bending radius must
not be less than that specified by the
manufacturer.
Exception for single unit cookers that
are not built-in.
•
•
- the old assymetrical model, including an
end with a fixed nozzle at the side of the
cooker, and a nozzle with a loose nut
and a built-in flat sealed joint at the side
BE
of the inside fitting (stop cock) .
- the new symmetrical model, including a
nozzle with a loose nut at both sides,
with a built-in flat sealed joint. This
symmetrical model is the only one that
D
will be available after the time limit.
When installing a new cooker, or replacing
an existing one, the symmetrical model must
C
always be used.
Assembly
The gas inlet on the old cookers is equipped
with a conical thread ISO 7-1 – and the hose
is assembled as follows:
HT
1.
2.
3.
4.
5.
6.
These cookers must be connected by
a flexible elastomer hose with a built–in
undetachable mechanical nozzle. Only
use those hoses that are authorised
with the label "AGB/BGV".
Two types of flexible elastomer hoses:
until April 2005, there were 2 types of
flexible elastomer hoses on the market:
apply a sealing product to the thread
on the appliance: a strip of teflon or
sealing paste for threads (colmat) plus
some acrylic wool;
tighten up the linking component (the
cylindrical inside thread ISO 7-1 to the
cylindrical ouside thread ISO 228-1)
with the two keys on the cooker;
check that the sealed joint is firmly
i n s e r t e d i n s i d e t h e m o v e a b l e
connection on the elastomer hose (new
model);
tighten up by hand the elastomer hose
on both sides;
tighten up with a spanner;
open the stop cock and check that
there are no leaks (soap bubbles) by
smearing on a frothing product ).
221