La Cornue CornuFé 1908 Installation And User Manual - page 20
Gas
CONNECTIONS
18
Installation and User Guide GB “CornuFé 1908”
08NOTINSTALFE8/GB-1
The hose must be firmly attached at both ends, and it must be possible to inspect the complete
hose length.
Moreover, the hose should be replaced by the user whenever required and, in all cases, before the
maximum use date given on the hose.
Recommended use: metallic flexible hose (stainless steel surrounded by metal lic
braids) with screwable connectors, without any lifetime end date.
Regardless of the gas used, it is forbidden to connect our gas appliances with flexible hoses moun-
ted on rubber tail pieces.
The appliance is delivered with a threaded cou-
pling. The cylindrical external threading has a gas
thread of ”G ½ A”, in accordance with the EN ISO
228-1:2003 standard. This type of connection is
used in France and some European countries.
If you use an ”R ½” external conic coupling in
accordance with the EN 10226-1:2004 and EN
10226-2:2005 standards or an ”Rp ½” internal cylin-
drical coupling as per the EN 10226-1:2004 stan-
dard, then unscrew the adapter on the appliance
and either turn it around, or connect your hose
directly to the end of the tubing.
Screw the gas hose at the end of the appliance
tubing, tightening it only by hand. Place two appro-
priate tools (one on the tubing to keep it from moving, and the other on the hose coupling) and
tighten the coupling on the hose.
Assemble the hose so that the hose is left hanging in a ”U” form.
When the connection is terminated, perform a pressure test to check the sealing of the appliance.
When checking the sealing, make sure not to use washing-up liquid, which could damage the
appliance; instead, use a foam liquid specially intended to detect leaks.
Sealing must be ensured by tightening 2 sealing surfaces beyond the threading with an appro-
priate sealing joint between them. To ensure the correct level of sealing along the threading, a sea-
ling compound or joining compound should be applied to the threading.
If a sealing compound has to be used, we recommend LOCTITE 542.
For appliances operating with BUTANE / PROPANE gas, use two cylinders with an automatic
reversing switch or an outdoor tank, and a standard pressure regulator adapted to the total flow
rate for your model and the gas pressure.
We advise you to use a pressure reducing valve with a minimum of 2 kg/hour.
As a general rule, an additional safety margin corresponding to 20 – 30% of the appliance’s maxi-
mum flow rate must be respected.
To guarantee constant pressure from the gas supply, the pressure regulator should not be placed
more than 2 m from the appliance.
Each appliance must have its own pressure regulator.
Rp 1/2
R 1/2
G 1/2 A