M-system MFTD-106 Serie Instrucciones De Uso página 240

The group of attachments (fig. 9.4) 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. 9.4
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 connec-
ted downstream from the gas stop-
cock, by:
• copper pipes having an appropriate
wall thickness, or;
• steel pipes, or;
• flexible R metal pipes with AGB cer-
HT
tification, 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 manu-
facturer.
240
Exception for single unit cookers
that are not built-in.
• 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:
- the old assymetrical model, including
BE
- the new symmetrical model, including
D
C
When installing a new cooker, or replacing
an existing one, the symmetrical model
must always be used.
Assembly
The gas inlet on the old cookers is equip-
ped with a conical thread ISO 7-1 – and
HT
the hose is assembled as follows:
1. apply a sealing product to the thread
2. tighten up the linking component (the
3. check that the sealed joint is firmly
4. tighten up by hand the elastomer hose
5. tighten up with a spanner;
6. open the stop cock and check that
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 of the inside fitting (stop
cock) .
a nozzle with a loose nut at both
sides, with a built-in flat sealed joint.
This symmetrical model is the only
one that will be available after the time
limit.
on the appliance: a strip of teflon or
sealing paste for threads (colmat) plus
some acrylic wool;
cylindrical inside thread ISO 7-1 to the
cylindrical ouside thread ISO 228-1)
with the two keys on the cooker;
inserted inside the moveable connec-
tion on the elastomer hose (new
model);
on both sides;
there are no leaks (soap bubbles) by
smearing on a frothing product ).